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Stanford Team Creates Stable Lithium Anode Using Honeycomb Film

puddingebola (2036796) writes "A team at Stanford has created a stable Lithium anode battery using a carbon honeycomb film. The film is described as a nanosphere layer that allows for the expansion of Lithium during use, and is suitable as a barrier between anode and cathode. Use of a lithium anode improves the coulombic efficiency and could result in longer range batteries for cars." The linked article suggests that the 200-mile-range, $25,000 electric car is a more realistic concept with batteries made with this technology, though some people are more interested in super-capacity phone batteries.

20 of 119 comments (clear)

  1. Re:More Range Needed by i+kan+reed · · Score: 3, Insightful

    Let's be reasonable here. Everyone takes long trips sometimes. Now there's definitely an 80/20 problem, where that long trip 20% of miles becomes an inordinate source of range anxiety, and taking a half hour break every 3-4 hours isn't too much to ask I think.

    Unfortunately, we have to convince people that it's a net positive for them, not that it's "not too much to ask". And it's not, unless you count the benefits from every other driver also going electric.

  2. Re:*Yawn* by jeffb+(2.718) · · Score: 3, Funny

    Yep, real men would never be happy with today's battery technology. That's why I still use a two-cycle engine in my phone.

  3. Re:*Yawn* by gstoddart · · Score: 2

    Right, because no technology is good or useful until it has been perfected and extended to all possible corner cases.

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  4. Re:More Range Needed by Matheus · · Score: 3, Interesting

    I'd love to have an 800+ mile range but no car I've ever owned has ever even teased that (best tank ever 436miles). That being said there has been a certain standard set by the automotive industry that I *do expect electric cars to conform to or I have no problem complaining: 1 "fill" ~ 300 Miles. Your average gas tank is sized for that measure and that's a fairly reasonable amount of distance before demanding a break. I'll be a little more demanding and say I want my charge time to be roughly equivalent to my gas fill up time which is closer to 15-20 minutes. SO give me a ~300 mile range car that can charge in 20 minutes and I'll consider an electric car a viable option for the kind of long distance driving I do.

    I always found it fairly disturbing that Doc Brown wasn't able to wire Mr. Fusion into an electric motor back in 1900 (or even when he installed it in 2015!). He had the know how and the means but that would've just effed up the plot now wouldn't it have!

  5. Re:More Range Needed by geekoid · · Score: 4, Interesting

    Did you know there was a time in the use when gas powered cars could only go a couple of hundred miles on a tank and people managed to go on vacation just fine? That's why roads like the 66 and 80 are littered with ghost towns and closed gas stations.

    In 1973, a Plymouth station age, a station wagon got 7-16 mpg and had a 16 gallon tank. The 256 miles, BEST case.

    So I think people need to get over themselves a bit and relax about having to stop for a git during long road trips when the other 80%* is a hell of a lot cleaner. Yes, electric cars are even cleaner over all in state that use old coal plants.

    OF course, you could rent or buy another vehicle for the road trip.
    Or take a train.**

    *I'd say 95%

    **BWAHAHAHAHHAHAHahahaha.

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  6. Re:More Range Needed by brambus · · Score: 2

    What about the majority of people who live in dense cities in apartment buildings without private driveways and/or parking spaces that are simply not practical to electrify. You know, it's easy to solve the problem for relatively rich folks, but most people in the world live more like this or this (myself included). We park our cars out on the streets, drive around mostly in or near the city and fill up perhaps once a month. Are we supposed to go charge our cars once or twice a week for a few hours at some remote location?

  7. Every month a new battery breakthrough, but.. by parabyte · · Score: 2, Insightful

    ...why can't I buy all these wonder batteries?

    In the last five years I must have read about at least fifty breakthroughs in battery technology, but nothing of it has reached the consumer (me) yet.

    I believe that this is because researchers seem to exaggerate their research results for obvious reasons and seem to underestimate what it takes to make a successful product.

    Regarding battery technology I completely stopped to believe anything that comes out of the research community.

    Unless I can buy it, it does not exist.

    p.

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    1. Re:Every month a new battery breakthrough, but.. by oh_my_080980980 · · Score: 2

      Another brain dead moron. RTFA. The Stanford team developed a technique that could allow you to "design a pure lithium anode." It's a huge accomplishment. Nowhere did they say they had a battery ready for market. Moron.

    2. Re:Every month a new battery breakthrough, but.. by geekoid · · Score: 3, Insightful

      A) This story isn't about batteries.
      B) This is a big breakthrough
      C) Batteries have improved, and some og those things do make t to market. You just don't hear of them becasue they market it's impact, not the technology or science.
      "20% longer! " Not "20% longer do to the tech Dr. So N So invented 5 years ago."

      Nice to know aircraft carriers, 777s, and mount Rushmore dodn't exist in your wold.

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    3. Re:Every month a new battery breakthrough, but.. by Rei · · Score: 5, Insightful

      Except that you have bought them; you just haven't realized it. Energy density of li-ion batteries has grown by about 50% in the past five years. Have you seriously not noticed how cell phone and laptop battery mah ratings keep growing while they keep making the volume available for the batteries smaller?

      It's big news when a new tech happens in the lab. It's not big news when the cells first roll off a production line.

      Most new lab techs don't make it to commercialization. But a lucky fraction of them do, and that's the reason that you're not walking around today with a cell phone with a battery the size of a small brick.

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    4. Re:Every month a new battery breakthrough, but.. by Radical+Moderate · · Score: 4, Insightful

      This. Compare today's cordless tools to those of the late 90s. Night and day. The battery revolution has been going on for years, but because it didn't happen overnight nobody's noticing.

      I expect Slashdot to trumpet every potential battery break-through because it's new for nerds. I don't expect to find those new batteries on the shelf tomorrow because I'm not an idiot. It's a long road from the lab to the market, most brilliant ideas don't make it.

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    5. Re:Every month a new battery breakthrough, but.. by DamonHD · · Score: 2

      Yes, they do materialise, just not in your/GGP's attention span it seems, nor all at once, nor at your convenience. Read an electronics catalogue rather than /. if all you want to know about is things ready *now*.

      I have the benefit of a nice big LiPO4 pack at home, enough to run my server for a couple of days, which would absolutely not even have been a twinkle in my eye when I started in electronics and computing for example. Oh and a couple of months' worth of lead-acid behind it, essentially a century-old technology with a little bit of gel and MPPT cleverness folded in much more recently.

      Retail tech is full of tiny incremental improvements, which sometimes started as R&D tech breakthroughs many many years before.

      Rgds

      Damon

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  8. Re:More Range Needed by sribe · · Score: 3, Insightful

    In 1973, a Plymouth station age, a station wagon got 7-16 mpg and had a 16 gallon tank. The 256 miles, BEST case.

    Yeah, and you could refill it in 2 minutes.

  9. Re:More Range Needed by geekoid · · Score: 2

    If you arrived when the gas station was opened.

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  10. Re:More Range Needed by Rei · · Score: 2

    If everyone last person was going to be driving electric cars tomorrow, yes, that would be a problem.

    Given that that's not the case, and for decades it's always going to be such that the people whose situation best suits an electric car are going to be the next ones in line to adopt them, then no, it's not a problem. You really think people can't build curbside/parking lot charging stations over the course of *decades* if there seems to be steadily growing interest in EVs?

    As a side note, I don't know those exact neighborhoods in your pictures, but in my experience, most people who live in such places don't own *any* car.

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    It's a Cyrillic alphabet. It's like all those keys you never push on a calculator.
  11. Re:More Range Needed by big_orange · · Score: 2

    Range extension of electric cars Has anyone not thought of maybe a trailer that contains a battery? Think of it as a first stage? Would be great for longer trips, still rechargeable.... You could rent them for longer trips, or swap them out at your destination "HERTZ" Batteries! Get to the next generation battery like this and it's almost feasible

  12. Re:More Range Needed by i+kan+reed · · Score: 2

    Of course I know that.

    The problem, as I'm trying to make clear, isn't the absolute value of an electric car. It's an amazing thing. The problem is that people naturally will compare things to what they personally have at their disposal now. And when one attribute comes up short, it's human nature to reflect on that shortcoming, and how much it will cost you.

    I mean, I personally would take the: simpler maintenance , quieter running, lack of gas station trips in "normal usage", lower running costs, and lower environmental externalities as more than enough to make up for it for me.

    But others won't.

  13. Re:More Range Needed by AmiMoJo · · Score: 2

    In the EU a driver of a commercial vehicle must take a minimum 45 minute break every 4.5 hours of driving: http://www.rsa.ie/en/RSA/Profe...

    You can drive for four hours in a Tesla Model S before you need to stop for 50 minutes, falling to 40 minutes as 150kW chargers are rolled out. Seems like the only real barrier to long distance travel is the availability of superchargers and people who think they can safely drive more than 4.5 hours without a break.

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  14. Re:More Range Needed by AaronW · · Score: 2

    Usually the recharge times don't matter. I own a Tesla model S and sold my gas powered car. For most of my driving I just plug in at night and have the equivalent of a full tank every morning. It's only on long trips where the superchargers come in to play. I rarely bother with public charging stations since I don't need them. Now on long trips the superchargers come into the picture. In my last trip to Reno I stopped in Folsom to charge up. It took about 40 minutes during which time I got a nice lunch, took a bathroom break, etc while spending not a dime on fuel. Granted, more range is always better for long trips, but having to take a 30-40 minute break after several hours of driving is often a good thing.

    The extra time spent waiting to charge during long trips is more than offset by the time not spent going to gas stations when most of my driving is under the range limits of the car. I typically spend 5 seconds plugging in at night and 5 seconds unplugging in the morning rather than several minutes at a gas station waiting in line and filling up.

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  15. Re:*Yawn* by Archangel+Michael · · Score: 2

    Actually, of those millions of trucks, how many of them are hauling anything more than people around 95% of the time? Most trucks aren't used as trucks most of the time. Most are cars with empty beds in the back.

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