Polymer Gel Shows Promise For Smaller, Cheaper Batteries
TENxOXR writes "The BBC News website is reporting that a team of researchers at the University of Leeds have developed a polymer jelly that could replace the volatile and hazardous liquid electrolyte currently used in most lithium batteries. They hope that their development leads to smaller, cheaper and safer gadgets."
Like all battery tech, it will be patented and will not lead to much change... Although it's a nice thought.
Battery tech is far too distributed amongst far too many companies for anyone to develop "smaller, cheaper and safer" batteries that are any better than what we have.
Dan. -- So what if it's spelt wrong, nobody's perfect
My Hyundai Sonata Hybrid uses Lithium Polymer batteries that according to this article already implement this technology.
Lithium polymer technology uses a completely different approach. Rather than using a liquid electrolyte, which requires a robust metal casing, lithium polymer batteries use a polymer gel as the electrolyte
HTML is obsolete. It's time for a new, simpler and richer markup language.
I remember hearing about a new capacitor technology that used nanoparticles to allow far more power storage and almost instant recharge rates. Better/worse?
http://www.freepatentsonline.com/7990679.html
Different polymer. The Li-ion Polymers used today are the "solid" batteries the article refers to (as opposed to Liquid Li-ion). A quick Google search would have answered that for you.
Unfortunately, this invention does not replace the liquid electrolyte. The "jelly" is a polymer soaked in the liquid electrolyte, which definitely is immobilized (thus protecting against leaks) but it's probably not fireproof (I could not find a reference to a research article).
Despite this, it is a step in the right direction: dry polymer electrolytes are a good solution, but nowadays they have a low conductivity (about 100 times lower than the liquid). The solution to this is to run the batteries at higher temperatures (about 80C), but this promotes the fading of the capacity.
The real solution to the flammability of batteries will come with ceramic solid electrolytes, which are now in their early stages but should become practical in a few years.
Usually they won't burst into flames more than once each time, as you will probably need a new one after ;)
If I am going to get mad and throw my TV remote or Xbox controller at the wall, they won't go very far if the batteries aren't adding a decent bit of weight.
I put my books on Amazon, Smashwords, Demonoid, ISOHunt and Pirate Bay. Search for 'Michael Cargill'
That's down to the marketing department. Batteries have got a lot better but the marketers decided you want smaller gadgets and/or bigger screens, not longer battery life.
No sig today...
Hey, the electricity I use is always 100% clean. It's pure electrons, uncontaminated with any other charge carrier. :-)
The Tao of math: The numbers you can count are not the real numbers.
You don't use batteries? I envy you.
I don't use batteries to charge batteries, yes. :-)
(Note that I answered to an AC; maybe you've seen my post reparented)
The Tao of math: The numbers you can count are not the real numbers.
I'm sceptical though, since batteries just aren't getting any better in real life
Lots of people keep saying this. I wonder if any of you have ever used a battery.
I am TheRaven on Soylent News
My Hyundai Sonata Hybrid uses Lithium Polymer batteries that according to this article already implement this technology.
It's a completely different technology.
FTA:
The Leeds-based researchers are promising that their jelly batteries are as safe as polymer batteries, perform like liquid-filled batteries, but are 10 to 20% the price of either.
A five to tenfold reduction in the price of batteries sounds pretty significant.
Pizza's fine; it's his brother Jabba about whom I worry!
Great minds think alike; fools seldom differ.
Yes I have. And I've had to recharge them often too.
I want 2X capacity in the same size. I want what I had with my RAZR phone back in 1999, charge it once a week. unlike the iphone that must be charged daily.
I want AA batteries that will last a year in Xbox360 controllers between chargings.
The problem is that much electrical potential will NOT get rid of the "risk". if you short a high capacity battery no matter what it is made of, it will get really hot. they are not going to eliminate the burning battery syndrome. Better QC does that.
Do not look at laser with remaining good eye.
Yes they all are using crap rechargeable Li-ions from 10 years ago.
I bought a new set this past week and they last massively longer than the ones that are only 2 years old and have less than 20 cycles on them.
The problem is that 99% of all people are ignorant to the proper care of a Li-Ion battery. leaving it dead = destruction. keeping it charged = longer life. I can drain completely a brand new battery and destroy it quickly by leaving it discharged for a month.
Do not look at laser with remaining good eye.
Hehe, yeah, it appears so.
A lot of the comments in this thread touch on the application of these batteries for electric cars. I'm curious, do most of you consider gas mileage when considering your next car? Are you thinking of going hybrid electric to get that gas mileage? My current gasoline car is 10 years old and I've started considering a replacement. I want significantly better mileage but I need the same size or slightly larger car because I have had my 3rd kid in those ten years. I also don't want any of my kids to feel like they need to join the military and invade the Middle East to keep my gas tank full.
If you think like me, then which car are you thinking of buying next?
I weep for humanity.
I don't see why. I personally prefer politicians who have considerable life experience outside of the political arena. Being a decent actor and a very successful businessman is a positive factor in my view.
here's some advice the lab boys gave me: "Do not get covered in the Polymer Gel." We haven't entirely nailed down what element it is yet, but I'll tell you this: It's a lively one, and it does not like the human skeleton.
Yeah, it means they have lots of friends in high places they can leverage in the political arena in order to line their own pockets.
Uh, huh. Sure they are.
The metals and chemicals for batteries come from the Land of the Mystical, where they magically appear and disappear with no loss or pollution. They require no energy to recycle or dispose of expended chem or metals. They require zero energy to charge; it just magically appears and comes from the Land of the Magic.
Sure, when wonderful things that are harmless and good for the environment appear, there's no reason to double-check the manufacturing processes or R&D. Wonderful is just wonderful with no reason to worry or think at all.
IMHO, there should be a Manhattan Project/X-prize scale battery development project. All of this green energy generation is intermittent. It's useless without a way to store excess energy. Same goes for the forthcoming smart-meter based energy billing. Without a way to harvest energy in the middle of the night when it's cheaper, the cost of energy to the consumer is just going to go up. I want a box the size of a refrigerator that can power my entire home including heating and cooling for at least 24 hours and that wouldn't cost more than a few thousand dollars. Replacement time needs to be long enough after to more than pay for itself which is what's wrong with hybrid vehicles. Once people see what it costs to replace the pack in their car they say screw it I'll just run on gas.
Back when the movie came out, Arnie was already known as Conan the Republican - he got the nickname from GHWBush when he was campaigning for him, and he was already married to Maria Shriver, a well-known Democrat. After he was Governator for a few years, it was obvious that he wasn't going to be able to fix California's problems either, but he stayed popular until the illegitimate kid news got out. (And until then, people were still occasionally talking about the "Schwarzenegger Amendment" at least half-seriously.)
And that Taco Bell is in El Segundo, just south of LAX airport. I never got to it when I was working down there, probably should next time I'm in LA. (Of course it doesn't look like the classic Taco Bell design, which is made of painted brick - here in Northern California there are a few of those still around, no longer as Taco Bells - some of them even have real Mexican restaurants in them now.)
Bill Stewart
New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
My batteries are even cleaner! They use positive current, so they power equipment by transmitting holes!
Bill Stewart
New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
Yes I have. And I've had to recharge them often too.
Quit shorting the terminals with your tongue. The battery and your brain will last longer.
Faster! Faster! Faster would be better!
I can drain completely a brand new battery and destroy it quickly by leaving it discharged for a month.
This is one of the really annoying things about current tech. Nearly everything is made with a custom cell to maximize battery capacity. So if you have something battery powered that you don't use frequently, you have to plug the stupid thing in (along with dozens of other similar stupid little things) or deal with prematurely dead batteries. This leads to a rat's nest of little wall warts, tiny almost-but-not-quite-standard USB plugs and cables and cheap little plastic battery holders with 90 watt blue LEDs.
In the previous age, when Dinosaurs such as myself ruled the earth, everything was centered around the ubiquitous AA battery. A couple of smart chargers, a couple of extra cells and life was good. Even if George Bush was president.
No, not so much. You may disperse from my landscaping now. Thank you.
Faster! Faster! Faster would be better!
When oil companies talk about how they're "investing in green technology", it's usually in the form of buying up patents to make sure that electric vehicles don't become too practical.
In the case of NiMH, which is very robust and economical, it's courtesy of Chevron. Thus electric vehicles currently have to use Li-ion, which has very good energy density, but they're considerably more expensive. It works OK for the small packs in hybrids, but long-range pure electrics will need NiMH to be practical.
http://en.wikipedia.org/wiki/Patent_encumbrance_of_large_automotive_NiMH_batteries
irony.
if building a hybrid vehicle involves getting the rare earth metals from china where chinese children get cancer and die, it is zero emissions as long as we don't see it.
mining the rare earth metals used in electronics is a particularly dirty pursuit.
Actually my safety kit in my hiking bag is centered around the AA battery. my GPS,GMRS radio, the flashlights, etc all MUST use the AA battery. I carry 4 disposables and 4 rechargeable NICAD's in there.
Why NiCAD? because they can sit for 30 years in a discharged state and not degrade. the solar charger I have in the pack will charge those 4 in about 3 hours in full sun.
Old tech wins when it comes to emergency and longevity. I have a pair of Nicad AA rechargeables that I found in the basement that are from 1998. they still take a charge well and hold enough of a charge to run the GPS a whole day. not one modern battery can do that.
Do not look at laser with remaining good eye.
Yeah, it means they have lots of friends in high places they can leverage in the political arena in order to line their own pockets.
If you get to a powerful political or administrative office, you can easily leverage the position to obtain the above. Actors are no more likely to have lots of cronies than any other.