Slashdot Mirror


How Argonne National Lab Will Make Electric Cars Cheaper

ashshy writes Argonne National Lab is leading the charge on next-generation battery research. In an interview with The Motley Fool, Argonne spokesman Jeff Chamberlain explains how new lithium ion chemistries will drive down the cost of electric cars over the next few years. "The advent of lithium ion has truly enabled transportation uses," Chamberlain said. "Because if you remember your freshman chemistry, you think of the periodic table -- lithium is in the upper left-hand corner of the periodic table. Only hydrogen and helium are lighter on an atomic basis."

99 of 143 comments (clear)

  1. Re:Yeah, so? by Anonymous Coward · · Score: 1

    That's right, it's called nullithium and its nucleus contains zero protons.

  2. Re:Fire by R3d+M3rcury · · Score: 1

    ...which is why we put them in self-driving cars that communicate with each other to avoid accidents.

  3. Re:Yeah, so? by ArcadeMan · · Score: 2

    It's zero protons held together with magnets.

  4. Re:Yeah, so? by ArcadeMan · · Score: 4, Funny

    What do you mean? An African or European proton?

  5. Re:Fire by mirix · · Score: 4, Informative

    So does Sodium. But do you notice how table salt doesn't burn in water?

    There's no lithium metal in lithium /ion/ cells. The whole lithium catching on fire thing is to do with them having a rather volatile solvent as part of the electrolyte (something similar to ether).

    --
    Sent from my PDP-11
  6. Re:Fire by viperidaenz · · Score: 1

    Elemental lithium does, yes.
    Lithium compounds in batteries, not so much.

  7. Re:Yeah, so? by apraetor · · Score: 1

    I dunno what weird engineered atoms might be in our future, but the element to which any atom belongs is determined by its proton count -- and since we're talking about discrete units they can only exist as whole numbers.

  8. Re:Fire by viperidaenz · · Score: 2

    Stop ruining his outburst with science.

  9. Economic risk by Michael+Woodhams · · Score: 1, Flamebait

    Some new game changing battery/supercapacitor breakthrough might be just around the corner. If so, all that investment in the battery megafactory could get wiped out. Ditto with investing in lithium mining.

    So the megafactory might be still happily minting money 25 years from now, or it might be nearly worthless 5 years from now. Presumably this means we'll be paying a risk premium on lithium and lithium batteries. It seems to me that it would be smart for Tesla to be investing in the very technologies that might disrupt their factory, as an insurance policy. That way, if the fortune you've invested in the factory evaporates, hopefully you'll have a new replacement fortune due to having a stake in the new technology. However, this strategy requires that you have the funds for this speculative investment, and has you encouraging the very research which will ruin your factory investment. (Also, maybe you won't have invested in the right places and won't have a stake in the new technology.) In the case of Tesla, they are major consumers as well as (soon to be) major manufacturers of batteries, so there is an additional up-side to investing in the hypothetical tech breakthrough.

    Is lithium mining expanding fast enough to feed this factory when it comes online?

    --
    Quattuor res in hoc mundo sanctae sunt: libri, liberi, libertas et liberalitas.
    1. Re:Economic risk by goruka · · Score: 1

      Don't worry, the Lithiumpoly mafia will make sure that no alternative energy is economically viable in the next decades, so their business remains intact.

    2. Re:Economic risk by Areyoukiddingme · · Score: 4, Informative

      Some new game changing battery/supercapacitor breakthrough might be just around the corner. If so, all that investment in the battery megafactory could get wiped out. Ditto with investing in lithium mining.

      It's not much of a risk. Every single battery chemistry has been played with, at one time or another. And by that I mean rigorously and exhaustively scientifically investigated. In consequence, not only has everything been tried, but we now know what works and why it works. That's why it's science, and not merely engineering.

      Lithium will always remain a preferential element because it's the element that is the strongest reducing agent in the periodic table, short of hydrogen, which is too hard to hold on to. The stronger the reducing agent, the higher the voltage a cell can develop and the better a battery can be. At the other end, you want a strong oxidizing agent. Fluorine would be ideal, if it wasn't such a viciously strong oxidizing agent that it eats your whole battery, not just the electrons you want it to. Presumably this situation is what the spokesdroid was referring to, without explaining what the hell he was talking about.

      Lithium is the cathode of choice since it's a metal that can be conveniently nailed down while still possessing a very good electrode potential. As an ion, it's nicely compact, being the lightest of metals, so it migrates through a battery most conveniently. What to pair it with is a little more complicated, and the subject of much research. This is where manganese, cobalt, and carbon come in. Various combinations of those elements and their immediate neighbors on the periodic table are used to make anodes. Some work better than others. Some may work better yet depending on how they're assembled.

      Rest assured, whatever develops in terms of battery assembly, lithium will remain the cathode, and much of the macroscopic assembly will be the same or close enough to the same that the gigafactory will always be busy. The assembly and packaging to be done is fairly common, regardless of chemistry.

    3. Re:Economic risk by WalksOnDirt · · Score: 1

      Nicely written post, but you don't know what you're talking about.

      Hydrogen is not the strongest reducing agent amount the stable elements. If you go by electronegativity it is cesium. Cesium is rather heavy, though.

      Lithium would make a very good cathode (if we could just control the dendrites), but it's not what lithium-ion batteries use. Transition metal compounds are far from ideal for cathodes, but they have the advantage that we can make them work pretty well.

      Lithium-sulfur is potentially the next battery after lithium-ion, if only we can make them last long enough.

      --
      a,e,i,o,u and sometimes w and y (at be if of up cwm by)
    4. Re:Economic risk by voights · · Score: 2, Interesting

      It isn't by electronegativity, though. See http://en.wikipedia.org/wiki/T...

    5. Re:Economic risk by Muad'Dave · · Score: 1

      Calcium-ion looks like it has potential. -3.8V E-sub0.

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    6. Re:Economic risk by Isca · · Score: 1

      All signs point to the next breakthrough as being some form of magnesium taking the place of Lithium.

      http://www.greencarcongress.com/2014/07/20140725-kyoto.html

    7. Re:Economic risk by fonske · · Score: 1

      Please note that the half reaction mentioned is Ca+. Mendelyev table will make mention of only one oxidation state namely Ca++.
      This means the half reaction is very exotic and Ca+ is not stable at all.
      The late Prof. Van Vaeck told me he observed Ca+ (at m/z 20) in dynamic SIMS but since transmission times of secondary ions to the detector are in the order of nanoseconds this might well be possible.
      E0 of Ca2+ + 2e- = Ca is -2.869 V (compared to standard hydrogen cell).
      Pretty decent still but... earth alkali salts are not as solluble as alkali (Li, Na, K...) salts.
      There are however batteries with Ca salts.
      I also want to mention that electronegativity is used in basic chemistry to make a difference between ionic bonding or covalent bonds and this has nothing to do with the (arbitrary relative scale (compared to standard hydrogen cell)) half reaction table.
      Areyoukiddingme knows what he is talking about and mentioned the essence.

    8. Re:Economic risk by WalksOnDirt · · Score: 1

      The lithium in a modern battery is not aqueous, which is the default in your table. What the result would be in a modern electrolyte, I don't know.

      --
      a,e,i,o,u and sometimes w and y (at be if of up cwm by)
  10. Re:Yeah, so? by Hadlock · · Score: 1

    What's it like, flunking high school physics?

    --
    moox. for a new generation.
  11. Re:Fire by gargleblast · · Score: 3, Insightful

    And that is why we should return to the safe, natural goodness of gasoline.

  12. Re:non sequitur? by phantomfive · · Score: 2

    I wondered the same thing, so I read the article (sometimes it must be done).

    He was making the point that lithium is not heavy. Other than that, it's hard to know what else he was trying to say, because the article doesn't give much context.

    Of course, it's also possible that since he's just a spokesman, he doesn't have much else to say.

    --
    "First they came for the slanderers and i said nothing."
  13. Re:non sequitur? by Firethorn · · Score: 2

    He was making the point that lithium is not heavy. Other than that, it's hard to know what else he was trying to say, because the article doesn't give much context.

    I know it's not XKCD, but there's relevant SMBC and PHD comics.

    Roughly speaking, outside of very dedicated science reporting channels by the time you go from the scientist's representative trying to dumb it down, to the reporter trying to dumb it down, to the editor doing it yet again, accuracy sucks.

    Maybe they're trying for a hydrogen battery?

    --
    I don't read AC A human right
  14. where are we headed 5, 10, 15 yrs from now? by schlachter · · Score: 3, Interesting

    I think electric cars are the future. Some will debate me on that, but I'm not interested in that debate.

    Where are we likely to be in 15 yrs? 2x current capacity? 4x current capacity? 10x current capacity? Where are the growing pains?

    How much better/cheaper can lithium ion batteries get? What will they be replaced with? What's the end game?

    --
    My God can beat up your God. Just kidding...don't take offense. I know there's no God.
    1. Re:where are we headed 5, 10, 15 yrs from now? by Anonymous Coward · · Score: 3, Informative

      Lithium-ion chemistry will go on for another 5 to 10 years according to Tesla, CTO. Elon Musk when asked if they could get a costs down to $100 a KwH within 10 years, he responded that he would be very disappointed if Tesla didn't. At $100 a KwH electric cars cost the same as gasoline powered cars. Tesla's current kWh cost is less than $300 currently according to the economist. My very wild guess would be in 10 years batteries will cost $50 a killowatt.

    2. re: where are we headed 5, 10, 15 yrs from now? by Anonymous Coward · · Score: 1

      The BMW i3 BEV uses Samsung Lithium batteries.

      Interesting technology roadmap as summarized:
      2013 / Convention LIB / NCM / 130Wh/kg / EV range 160 km
      2016 / Advanced LIB / New NCM / 130Wh/kg / EV range 240 km
      2019 / Innovative LIB / NCM / 250Wh/kg / EV range 300 km
      2020+ / Post LIB / Li-Air Fuel Cell / GT 300Wh/kg / EV range GT 300 km

      http://www.samsungsdi.com/automotive-battery/battery-cells

      Hence your 2014 BEV with 160km range, when it needs a battery refresh post 2020, will travel 300km for same weight. So expect 2x range in 6 years.

    3. Re:where are we headed 5, 10, 15 yrs from now? by Isca · · Score: 1

      Don't forget that all of the old batteries that are returned to Tesla will probably go into large warehouses in rural areas where they can take those batteries that are only 70% of their effectiveness and use them for another 20 years as grid storage. I honestly think this is Elon's long term goal. Using them in transportation pays for the initial cost of the batteries - long term grid storage is what will make the money. Once the first few large scale grid storage "warehouses" come on line the financiers will join in to make purchasing your electric vehicle batteries a lease with the goal of making money over the long term, making it even cheaper for the EV owner to purchase them.

    4. Re:where are we headed 5, 10, 15 yrs from now? by schlachter · · Score: 1

      I've heard this discussed before, and I can see a use case for it, but it seems like there are more efficient means to storing energy. Mechanical compression of gas, heating of water, kinetic motion like a flywheel, compressing a spring, etc. OTOH, the cars themselves can function as large scale grid storage, once they have sufficient excess range.

      --
      My God can beat up your God. Just kidding...don't take offense. I know there's no God.
  15. Re:non sequitur? by phantomfive · · Score: 1

    Maybe they're trying for a hydrogen battery?

    lol because hydrogen is lighter than lithium?

    If you read the article, it does at least make clear what they are trying for. Their first priority is to make batteries cheaper (the range is already good enough to sell a lot, they feel, if the price goes down). Their second priority is to increase range, and they have some ideas that could increase range 400%, but they are not ready for production yet (they have problems like short battery life or whatever). Those are the things I could gather from the article.

    As far as actual chemistry, there is nothing there.

    --
    "First they came for the slanderers and i said nothing."
  16. Re:Yeah, so? by _merlin · · Score: 2

    I think you mean "fucking magnets" - how do they work?

  17. oh sure! by silfen · · Score: 1

    They'll make electric cars dramatically cheaper just like they brought us fusion reactors!

  18. Re: Interesting news tibits by Anonymous Coward · · Score: 2, Funny

    To be fair he wanted to shoot someone in the face while bird hunting, but apparently Martha's Vineyard doesn't have the same easy attitude about misuse of firearms that Wyoming does.

  19. Re:Yeah, so? by haruchai · · Score: 1

    Oh, c'mon, everyone knows that the ultimate power source will be an element with pi protons, e neutrons & 3i electrons

    --
    Pain is merely failure leaving the body
  20. Re:Yeah, so? by haruchai · · Score: 2

    Hmm, that was typed as sq rt 2 x i electrons but Slashdot made it a 3.

    --
    Pain is merely failure leaving the body
  21. I'll believe it.... by mark-t · · Score: 1

    ... when I can buy an all-electric car that is just as sexy and just as performant as the Tesla Model S for under about $45k in today's dollars.

    1. Re:I'll believe it.... by Chrisq · · Score: 3, Insightful

      ... when I can buy an all-electric car that is just as sexy and just as performant as the Tesla Model S for under about $45k in today's dollars.

      By the time they do that driving a car manually will be illegal and you might not even own a car - just call one for each trip.

    2. Re:I'll believe it.... by silentcoder · · Score: 1

      You do know that the Model S right now, is the cheapest car in it's class right ?
      Or do you think "floor price" is the only price that comes into calculating the price of a car. Nearly all cars have higher maintenance costs over their lifetime than the floor-price, the second-hand price is a huge factor (the more value lost, the worst it works out when you want to upgrade) and of course the fuel cost.
      Factor all those in and the model S is cheaper than any other car in the luxury sedan class - and offers out-of-the-box far more features than any you can get for the same price.

      The best second hand car to buy in my country, South Africa, right now is the BMW 3xx Diesel. This is because
      1) Those cars have a very long life
      2) Being built locally - they are adjusted to the quality of our roads - excellent cars like Renaults or Chevolet's just don't LAST here.
      3) A second-hand BMW 3-series, now about 10 years old, can be resold in 5 years for about 90% of what you pay for it ( which is not much).
      4) It has absolutely top of the range luxury and safety features.

      In fact, buying that 10 year old BMW works out MUCH cheaper than buying a brand-new car for R10K more, because the car you can GET for R10K more is going to be something like a fiat palio or or other bottom-of-the-range car that will lose far more value as you drive it off the lot, cost you a LOT more in maintenance and uses a much more expensive fuel - and it will be a much less safe car to drive.

      My 8 year old Audi A3 is pretty much the second best choice right now after the BMW, but when I upgrade in the near future (now that I have a kid, a four-door becomes valuable) I will probably look at BMW.

      There is SO much more to calculating the price of a car than the number written on the windscreen at the dealer - and when you actually DO those sums - there is NO car that's comparable to the model-S in features (or anywhere close) that isn't FAR more expensive a vehicle to own.

      In the meantime battery costs will keep plummeting - just the scale-up in production alone will ensure that, throw in improved engineering in the batteries themselves and you're set for a few years of huge drops. Since the battery right now is the most expensive part of the Model-S - don't be surprized if even the sticker price drops dramatically over the next few years.

      Frankly if I am ever stupid enough to buy a NEW car in my life, I won't consider doing that with anything EXCEPT a Tesla, it's literally the ONLY car that offers anything that even VAGUELY resembles value for money if you buy it new.

      --
      Unicode killed the ASCII-art *
    3. Re:I'll believe it.... by mark-t · · Score: 1

      The main thing that the Tesla model S offers over any other electric vehicle is its range. Over much less expensive electric vehicles, the main things are that it has a respectable size, and that it doesn't look like a piece of shit *cough, prius, leaf*. However, the *ONLY* thing that it would offer me over absolutely any other kind of brand new car that I could go out buy for roughly half that price is that it is electric.

      In other words, although I don't dispute that the Tesla model S is a luxury automobile, I would argue that if the price of making electric cars actually were to really come down, then I would suggest that it will also eventually be theoretically possible for a manufacturer to come out with a car that could probably compete quite well against the Tesla in terms of what it offers the consumer for a heck of a lot lot less money. I'm also saying that I don't think the latter will actually ever happen in reality. That despite it maybe becoming possible to do, I'm suggesting that purely electric cars that aren't ugly to look at, and actually have a decent range are probably permanently stuck in the "luxury class" and the allegation that we'd genuinely ever see them getting any cheaper in the future is nothing but a pipe dream, even though they will offer nothing that you can't get from a considerably less expensive car other than the fact that it's electric and whatever appeal that might exist based on branding.

    4. Re:I'll believe it.... by silentcoder · · Score: 1

      So you want a non-luxury electric car and you think that's unlikely ?
      Except Tesla has already announced plans for one.

      The Model-S just isn't the right one to look at.

      --
      Unicode killed the ASCII-art *
    5. Re:I'll believe it.... by mark-t · · Score: 1

      Tesla has already announced plans for one.

      A smaller car, with less range.

    6. Re:I'll believe it.... by holmstar · · Score: 1

      The model 3 will be marketed against things like the BMW 3-series and Audi A4, so we're still talking about luxury cars.

    7. Re:I'll believe it.... by mark-t · · Score: 1

      I guess I'm stupid by your assessment then... Not that I particularly care what you think about how I manage my money.

  22. Re:Fire by hendrikboom · · Score: 2

    I missed that it was lithium *ion* cells.

    -- hendrik

  23. Re:non sequitur? by Firethorn · · Score: 1

    I did read the article, though not before my comment. In it was really nothing new. We've known for ages that with the development of the lithium ion battery that the only thing stopping EVs from being the obvious choice 90% of the time was the cost of the energy storage. From my research, if the giga-factory does succeed at cutting the cost of LiIon in half it's going to be a real game changer, and not just for the EV world.

    Why? Last time I checked LiIon was down to below double that of Lead-Acid. That means that if you cut the price in half again lithium Ion will actually be cheaper than Lead-Acid.

    That $100 car battery? A lithium-ion equivalent that's 1/10th the weight for the same capacity and probably even more cold cranking amps might be $80.

    We've already seen the start of a revolution with nearly all cordless tools becoming LiIon devices rather than NiCd and NiMH.

    --
    I don't read AC A human right
  24. Re:non sequitur? by phantomfive · · Score: 2

    I did read the article, though not before my comment. In it was really nothing new.

    Oh sorry about that, I should have pointed that out; I forgot to mention that the article isn't actually worth reading lol

    --
    "First they came for the slanderers and i said nothing."
  25. Light but reactive element = high energy density by Ungrounded+Lightning · · Score: 1

    "lithium is in the upper left-hand corner of the periodic table. Only hydrogen and helium are lighter on an atomic basis."

      I'm wondering if this is a non sequitur for electric batteries.

    Not a non sequitur at all.

    An important factor for batteries is energy density: How much energy is stored per unit mass. This is particularly important for electric cars: The higher the energy density, the less mass you havce to haul around for a given amount of "fuel", which means the less "fuel" is spent hauling your "fuel" around, so it's a more-than-linear improvement.

    Lithium is both extremely light and a very reactive nonmetal. So you're talking about a lot of energy per unit mass for the lithium-based electrode's contribution to the reaction.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  26. Re:Fire by Trongy · · Score: 3, Informative

    RTFA
    It mentions they are trying to replace the lithium ion anode with "pure lithium" - i.e. lithium metal.

  27. Re:Light but reactive element = high energy densit by Trongy · · Score: 1

    Lithium is a metal.

  28. Re:Fire by umdesch4 · · Score: 1

    Well, you could always try making a battery with a lithium anode instead, that's coated with carbon nanospheres to stop it from reacting to stuff, and forming dendrites over time with charging and recharging. Funny thing is, Stanford's doing just that, and I believe I may have even gotten this link from slashdot a couple weeks ago: http://www.eurekalert.org/pub_...

  29. Re: Interesting news tibits by Chrisje · · Score: 1

    Why post this anonymous? Now it won't be +5Funny.

  30. Re:Light but reactive element = high energy densit by Ungrounded+Lightning · · Score: 1

    Lithium is a metal.

    Oops. Right. Sorry.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  31. Re:non sequitur? by Rei · · Score: 1

    It is a non-sequiteur. The energy density of a li-ion battery doesn't even approach the theoretical maximum storage for the element lithium shifting between ionization states. That's hardly the only way this article is terrible, mind you. My head hurt every time they said the word "efficiency", it's like they were using it to mean everything possible except for actual efficiency. And if I read it right - who knows, the article is such a total mess - the researcher isn't talking about reducing battery cost, but increasing longevity. But maybe that was mangled too.

    --
    Musk needs a safer hobby than Twitter. Fire juggling? Cage fighting? Solo hot air balloon trips?
  32. Re:Yeah, so? by sumdumass · · Score: 1

    So you do not think there could ever be anything discovered that has the same amount of protons but completely different properties due to some yet unknown reason? Is it that everything in this area of science has already been discovered, the concenssus is in and we should ignore it all except for how we use what we already know?

    I think this was the case once before when some idiot tried to claim there was some special theory of reletivity or something nuty like that. Its a good thing nobody took him seriously.

  33. Re:Fire by Rei · · Score: 2, Interesting

    Nuh uh! There are also compressed air cars - they only explosively decompress upon tank failure! ;)

    At least with batteries, flammability or explosiveness aren't a fundamental requirement of how you're trying to propel the vehicle, just an unfortunate side effect of some variants of the technology (even not all types of li-ions are flammable). There's lots of people who assume that flammability is a consequence of electrical energy density, but that's just not the case. The actual charge/discharge lithium batteries via intercalating into the anode or cathode is more an atomic-scale equivalent of compressing air into a tank, you're having little affect on the substrate flammabilities and you're not even changing their chemical bonding, you're just cramming lithium ions into the space between their atoms. The flammabilty of some types comes from side effects, such as flammable electrolytes or membrane failures leading to lithium metal plating out; these aren't a fundamental aspect of the energy storage process.

    Now, li-air, that involves an actual lithium metal electrode, and that is fundamentally flammable. Of course, so is gasoline. I have no doubt that they can reduce fire risks on li-air cells and keep them properly contained to prevent failure propagations. My bigger issues with li-air are its terrible efficiency, lifespan, and cost. I'm certain the latter would come down, and I expect that they can improve the lifespan, but I'm a bit uneasy about how much they can improve its efficiency. Right now, they're as inefficient as a fuel cell. : Who wants to waste three times as much power per mile as is necessary?

    --
    Musk needs a safer hobby than Twitter. Fire juggling? Cage fighting? Solo hot air balloon trips?
  34. Re:Yeah, so? by sumdumass · · Score: 1

    I don't know what the parent was thinking but what if there ended up being two elements with the same number if protons but different phisical properties due to some yet to be discovered reason.

    How would something like that be treated? I mean for instance, a noble gas which is solid at room temperature and becomed a superconductor at the same time. Lets run with the fucking magnets and say something with the neutron bond causes the different behavior.

  35. What a terrible article.... by Wdi · · Score: 4, Insightful

    The weight of lithium is pretty irrelevant. There are no currently existing battery technologies where Li is more than 10% of the total weight of the battery, and standard battery types are significantly below that. If the active ion weight were the prime factor, there would be more interest in beryllium batteries (just 30% more weight vs. twice the charge per ion).

    1. Re:What a terrible article.... by Areyoukiddingme · · Score: 1

      The weight of lithium is pretty irrelevant. There are no currently existing battery technologies where Li is more than 10% of the total weight of the battery, and standard battery types are significantly below that.

      He was probably referring to the elemental weight, not the weight used.

  36. Slashvertisement for Tesla by brambus · · Score: 2

    Tesla Motors, Inc. Is Itching for More and Better Batteries by: Anders Bylund

    And then at the very bottom of the article:

    Anders Bylund owns shares of Tesla Motors. The Motley Fool recommends General Motors and Tesla Motors. The Motley Fool owns shares of Tesla Motors. Try any of our Foolish newsletter services free for 30 days.

    God I hate these ad pieces disguised as news.

    1. Re:Slashvertisement for Tesla by chihowa · · Score: 1

      That's just a standard disclaimer. Who doesn't own shares of Tesla Motors? The Motley Fool probably owns some shares of almost every company they'd report on. That doesn't make it an ad.

      --
      If you want a vision of the future, imagine a youtube comments section scrolling - forever.
    2. Re:Slashvertisement for Tesla by brambus · · Score: 1

      Founded in 1993 in Alexandria, Va., by brothers David and Tom Gardner, The Motley Fool is a multimedia financial-services company dedicated to building the world's greatest investment community.

      And these guys put up an article about the bright future of the technology of a company they hold stock in. Don't you see that as a bit of a conflict of interest? Of course they're not terribly motivated to mention the potential downsides and limitations of the technology. From where they're standing, it's all peaches and roses!
      This isn't news for nerds, it's a promotional piece for a product (Tesla stock).

    3. Re:Slashvertisement for Tesla by DerekLyons · · Score: 1

      They're not advertising pieces. Motley Fool is a financial advice site, and thus all their articles contain the appropriate disclaimers.

    4. Re:Slashvertisement for Tesla by phantomfive · · Score: 1

      If you didn't think Tesla had a bright future, why would you own stock in the company? That wouldn't make sense.

      Motley Fool gets points for being upfront and disclosing their investments, so you can judge for yourself. A lot of news places don't do that.

      --
      "First they came for the slanderers and i said nothing."
    5. Re:Slashvertisement for Tesla by brambus · · Score: 1

      Motley Fool gets points for being upfront and disclosing their investments, so you can judge for yourself. A lot of news places don't do that.

      Agree there, I don't like it when journalists take positions without declaring it and trying to put up an objective pretense.

    6. Re:Slashvertisement for Tesla by sherr · · Score: 1

      They did declare it. That's why the disclaimer is there.

    7. Re:Slashvertisement for Tesla by sherr · · Score: 1

      Sorry, failure to read on my part. Please ignore.

    8. Re:Slashvertisement for Tesla by smaddox · · Score: 1

      I sure as hell don't. I'm a fan of Tesla's cars, but their financials are completely upside-down. They're practically a Ponzi scheme that makes cars on the side.

  37. Re:non sequitur? by Maury+Markowitz · · Score: 1

    > I know it's not XKCD, but there's relevant SMBC [smbc-comics.com] and PHD [phdcomics.com] comics.

    Minor complaint with the second: we know from studies that the problem is not the university PR departments, but the researchers themselves.

  38. Re:non sequitur? by Maury+Markowitz · · Score: 1

    > That $100 car battery? A lithium-ion equivalent that's 1/10th the weight for the same
    > capacity and probably even more cold cranking amps might be $80.

    Sheesh. Why not also demand it be made out of unicorn tails and magic dust?

    Li-ion is 1/3rd the weight. 1/3rd, not 1/10th. It doesn't have to be any lighter.

    Li-ion also has less *power*. Be sure you understand the difference between *power* and *energy*. A li-ion battery will have *less* cranking amps, not more.

  39. They are a bit nutty.... by Lumpy · · Score: 2

    The battery pack is not the bulk of the price of an electric car. It's all the other bits.
    So it is not going to drive down the price, not by any reasonable amount.

    What is needed is a single company making the motors and standardization. If the Govt demanded that all cars follow a standard motor design then suddenly costs will drop. Ford,GM,Toyota,Honda are NOT going to standardize unless forced to. And prices will not drop until there is a standard that is interchangeable.

    --
    Do not look at laser with remaining good eye.
    1. Re:They are a bit nutty.... by Rhywden · · Score: 2

      You're wrong there. The VW Up exists as both a pure electric and pure gasoline version. The difference in price? 10,000€

      That's the price for the battery. In the case of the Up it almost doubles the price (from 12,000€ to 22,000€). And "all the other bits" being expensive? Seriously?

      With the switch to pure electric you just god rid of the following: The alternator which provides the energy for all the gizmos in a normal gasoline car. And, more importantly, the transmission, one of the most complicated and intricate mechanical pieces in a car with a combustion engine.

      Two complicated parts of the car, just poof! gone like that. The engine itself also just became way more easy - you don't need carefully timed pistons. You don't need the 3-way catalysator and the lambda probe. And so on and so forth. Hell, if you wanted to you could let each of the 4 wheels be driven by a separate motor! (which gets rid of the need for a differential!).

    2. Re:They are a bit nutty.... by phantomfive · · Score: 1

      The battery pack is not the bulk of the price of an electric car.

      Yes it is.

      --
      "First they came for the slanderers and i said nothing."
  40. Re:Yeah, so? by Muad'Dave · · Score: 1

    I liked the "Thomas Covenant" series, too.

    --
    Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
  41. Re:Yeah, so? by OneSmartFellow · · Score: 1

    There might be another lighter element between lithium and hydrogen that we don't know about.

    Lithium
    Number of Protons/Electrons: 3
    Number of Neutrons: 4


    Hydrogen
    Number of Protons/Electrons: 1
    Number of Neutrons: 0


    You are correct, there are quite a few possibilities for elements in between (whatever that really means), Many of those we call those Ions, but some are such unstable configurations (if they can exist at all) that as far as we are concerned, they don't really exist

    Some of those possible combinations we refer to as Helium (or its Ions)

    Welcome to 9th grade Chemistry.

  42. Re:Yeah, so? by OneSmartFellow · · Score: 1

    ...but completely different properties ...

    Properties that as yet we have not encountered, have no way to experience, or measure.....possible, sure. But then if they did, this would introduce a different classification system. So rather than refer to these things as Elements we might call them Smelements...........

    Hmmm, I think you're on to something here.

  43. Re:Fire by Enigma2175 · · Score: 1

    So does Sodium. But do you notice how table salt doesn't burn in water?

    There's no lithium metal in lithium /ion/ cells. The whole lithium catching on fire thing is to do with them having a rather volatile solvent as part of the electrolyte (something similar to ether).

    That's not necessarily true. When lithium batteries are charged at a low temperature, lithium metal plates the anode. This could certainly be a problem for electric cars, as they may not be in a warm garage as they are charging.

    --

    Enigma

  44. Re:Fire by Jason+Levine · · Score: 1

    Nuh uh! There are also compressed air cars - they only explosively decompress upon tank failure! ;)

    I propose that we go back to foot-powered automobiles as shown in that documentary called The Flintstones. Bonus: We'll save energy by getting all sorts of trained animals to do things for us instead of powering machines to do them.

    --
    My sci-fi novel, Ghost Thief, is now available from Amazon.com.
  45. Re:Fire by hendrikboom · · Score: 1

    Yes, so it does. I stand recorrected.

    -- hendrik

  46. Re:Yeah, so? by sumdumass · · Score: 1

    The universe is big- something on a quantum level could possible make this happen. A proton is not the smallest part of an element. If this was to happen, it is possible it could be introduced via comet and we would have a way to encounter, experience, and measure- although it msy take time to understand.

    Like i said, we thought we knew everything about physics once then it was turned upside down by Einstein. I do see how we would classify it differrently but i doubt anything would be renamed.

  47. Re:Yeah, so? by CrimsonAvenger · · Score: 1

    what if there ended up being two elements with the same number if protons

    Since we define elements by the number of protons, that would be basically impossible.

    --

    "I do not agree with what you say, but I will defend to the death your right to say it"
  48. Re:Yeah, so? by Dragonslicer · · Score: 2

    I don't know what the parent was thinking but what if there ended up being two elements with the same number if protons but different phisical properties due to some yet to be discovered reason.

    Well, we already have a word for atoms with the same number of protons but differences in some other property: isotope. Whether a difference in something other than number of neutrons would use the term "isotope" or some other new term is a decision that will have to be made if and when the discovery is made.

  49. Lithium shortage by GuB-42 · · Score: 1

    Won't we run into some kind of lithium shortage if the demand for li-ion batteries raises ?
    Or at least a increase in raw material price offsetting the decrease in manufacturing costs.

    1. Re:Lithium shortage by DaChesserCat · · Score: 1

      For your first question, unlikely. People like to compare supply/demand for lithium to petroleum. Unlike petroleum, you aren't "consuming" lithium. You're making it into stuff. Stuff which can be recycled. So, if you're seeing articles about "Peak Lithium" (a reference to "Peak Oil"), you can safely bet they're full of it.

      Your second question suggests a basic understanding of supply-demand. Good.

      As the demand for lithium increases, the price WILL go up in the short-term, which will stimulate investments in creating supply. We're already seeing the ramp-up in supply coincident with the ramp-up in demand. A few years ago, Electrovaya was advertising Lithium Ion batteries, large-format, for $300 / kWh in volume. That's what Elon Musk claims to be paying for his batteries, today. But the demand is at least an order of magnitude higher. We've already passed the "hump." And Elon Musk's investment, with Panasonic, in the "Gigafactory" is intended to push the supply higher, pushing the price lower, on the cheaper side of that hump.

      A sudden, HUGE spike in demand could create another hump, but most manufacturers are sensitive enough on price that they will probably avoid it.

      --
      ... by the Dew of Mountains the thoughts acquire speed, the hands acquire shakes, the shakes become a warning
  50. Re:non sequitur? by walshy007 · · Score: 1

    Most lead acid batteries don't like being discharged really quickly, ones designed for cold cranking amps tend to not like being too deeply run down either. Right now for sixty dollars I can purchase an 11.1v lithium polymer battery that can output well over 250 amps co tinuously and 500 amps in bursts that's on a four amp hour battery. Up the capacity and the maximum current can get crazy

  51. Re: Yeah, so? by fermion · · Score: 1
    Elements are defined solely by the number of protons, which is also know as the atomic number. There can be no more elements than we know unless they are created by adding more electrons and adding to the end of the periodic table. Writers often make stuff up, like the 10% brain thing, and people are not educated to know it is just made up.

    Isotopes are not considered chemically different from each other as they only differ in neutrons . As understood, the neutrons seem to help hold the atom together. It also appears that the number of neutrons increases non linearly in relation to the number of protons, to the point where elements with large number of protons are unstable.

    --
    "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
  52. Re:Yeah, so? by kilfarsnar · · Score: 1

    Or, "Yeah, bitch! Magnets!"

    --
    "What the American public doesn't know is what makes them the American public." -Ray Zalinsky (Tommy Boy)
  53. Re:Yeah, so? by AmonRa1979 · · Score: 1

    An interesting thing to think about is what would happen if we were able to exchange all the electrons with another particle that had negative charge. The chemical properties of a material are actually due to how electrons interact with each other. There are "muonic atoms" that have nuclei of muons instead of protons, but the electrons are still the same and the atom behaves similarly to it's protonic counterpart. I'm guessing that if there is another fermion with a negative charge, it would behave similarly in place of an electron, but perhaps not quite the same, giving us a broader range of possible chemical interactions.

    As an aside from my main point, if something like muonic atoms were stable over the long term, they would make extremely light compounds.

  54. Re: Yeah, so? by AmonRa1979 · · Score: 1

    I also just realized I got some points wrong about the muon, since it too is a lepton. Building a nucleus of more than 1 muon would be problematic. The main point holds though. There are subatomic particles that contain charge that might be used to build "atoms". However, I don't know if there are any stable configurations of them.

  55. Re: Yeah, so? by AmonRa1979 · · Score: 1

    Disregard. I posted this under the wrong post.

  56. Re:Yeah, so? by AmonRa1979 · · Score: 1

    I also just realized I got some points wrong about the muon, since it too is a lepton. Building a nucleus of more than 1 muon would be problematic. The main point holds though. There are subatomic particles that contain charge that might be used to build "atoms". However, I don't know if there are any stable configurations of them.

    (Also, I posted this by mistake under someone else's message. Adding this to get it passed the "exact comment already posted" filter.)

  57. so, moving left, the Helium-Cycle Battery? by swschrad · · Score: 1

    "Hell, Dr. Fred, if we put enough energy into the damn stable thing, just think how big an instantaneous charge we can drain out!"

    where's the Kickstarter link?

    --
    if this is supposed to be a new economy, how come they still want my old fashioned money?
  58. Re:non sequitur? by Firethorn · · Score: 1

    Li-ion is 1/3rd the weight. 1/3rd, not 1/10th. It doesn't have to be any lighter.

    Did you factor in that you need at least 50% more amp-hours to avoid deep discharging the lead-acid battery because, as walshy007 pointed out, ones designed for cranking over an engine don't like being deeply discharged?

    I will admit to rounding and making a bit of a WAG though - 1/7th would have been closer. Oh, and the battery wouldn't actually be cheaper, but it'd last longer.

    I'm surprised you didn't bring up that a liIon will stop working at around -25C instead of -40C. Though there are chemistries that work at colder temperatures.

    Be sure you understand the difference between *power* and *energy*.

    Be more condescending, why don't you? Power is energy over time.

    --
    I don't read AC A human right
  59. Re:Yeah, so? by apraetor · · Score: 1

    Those are called isotopes.

  60. Re:Yeah, so? by apraetor · · Score: 1

    The theoretical "muonic atom" would have muons replacing electrons, not the nucleus (protons and neutrons). If you really want to consider something interesting, look up the theoretical properties of atoms with proton numbers above 173. There is a theoretical "island of stability" where the half-lifes stop being measured in fractions of a second, but the size of the nuclei involved also get so large as to require electrons in the outer valences to have superluminal velocities.

  61. Re:Yeah, so? by apraetor · · Score: 1

    Are you using the term "nucleus" to include the valence electrons? Muons would have a charge of -1, same as that of the electron. You couldn't replace protons with muons, since the charge would be opposite and, more importantly, muons do not interact with the strong force.

  62. Re: Yeah, so? by AmonRa1979 · · Score: 1

    There are positively charged muons or antimuons. They do capture electrons. However, as I stated in my correction, having more than one as the nucleus would be problematic.

  63. Re: Yeah, so? by AmonRa1979 · · Score: 1

    And again here.... There are positively charged muons.

  64. Re:Yeah, so? by haruchai · · Score: 1

    Did you read all of them? I enjoyed them far more than I ever did any of the Dune books but I have mixed feelings about the way he ended it.

    --
    Pain is merely failure leaving the body
  65. Re:Yeah, so? by Muad'Dave · · Score: 1

    I read all of the original six when I was in junior high/high school. I have not read the final 4. Would you suggest I give them a go?

    As for the Dune series, I liked the first book, but they went downhill fast after that. The final one(s) was/were nearly incomprehensible. The only funny thing I got from them is that with Duncan Idaho being a ghola, everyone could have their "own private Idaho".

    --
    Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
  66. Re:Yeah, so? by dl_sledding · · Score: 1

    LOL... GLUEons! I see what you did there.

  67. Re:Yeah, so? by haruchai · · Score: 1

    Ah, I'm not sure.
    Some of it is fascinating but a lot of it smacks of "deus ex machina". And I don't like that he incorporated time travel although one of the ways that it was done was interesting. If the 2 Chronicles trilogies are all that you've read of his work, I'd sooner recommend his Gap series, which is sci-fi, not fantasy, the 2 Mordant books or even his short stories collection Daughter of Regals, which includes a story he deleted from the Illearth War called Gilden-fire that features the Bloodguard.

    --
    Pain is merely failure leaving the body
  68. Re:Electric cars are the present by schlachter · · Score: 1

    I have one in my garage too. But the present is still gas powered cars.

    --
    My God can beat up your God. Just kidding...don't take offense. I know there's no God.