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AAAAAAAAA-size Li-Ion Cells
Jasin Natael writes "Thought Li-Ion batteries were all the same? Think again. Several universities, under a grant from the US Office of Naval Research, are
miniaturizing the anodes and cathodes of Li-Ion batteries to nanoscale, hoping to make more efficient, smaller cells that last longer."
This sounds like more of an incremental improvment rather that the quantum leap that we need. And you'll still need a source of electricity to charge it. I'm still holding out for fuel cells.
"A language that doesn't affect the way you think about programming, is not worth knowing" - Alan Perlis
where's the pictures?
One of the things that I've been waiting for is minature power cells, a la Star Trek. It was always really cool to me how equipment could be lugged around from here to there, apparently never needing recharged.
If it helps, maybe this moves us one step closer to having laptops that can be used as true portable computers, not needing charged for days or weeks at a time.
Naval Research Office + Miniature lithium ion batteries -> algae spying off the coast of china
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Thats pretty neat stuff, but what form will it have to take? We know the battery life in the nano, and micro world is neat, but does it help solve problems when it comes to cell phones? I know the article says it would be helpfull in cell phones, but will it merely be a smaller battery, or will the life of the battery be longer? I dont think it explained well how the actual life span of the batteries would be longer, except for one issue of how they would have less area to diffuse over. Could someone explain to me how this makes it last longer in a practicle sense, IE how would a cell phone use it?
If you don't vote, you don't matter, so don't waste your time telling me your opinion
soon I won't be able to use my second favorite excuse for getting off the phone:
my batteries about to die.
thanks a lot...stupid progress. I yearn for the good ole days, when cell phones were the size of small dogs and hurt your arms holding the things.
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oh please! change the subject!
It scared the shit out of me when I read it as "lion cells" and the "AAAAAAAA" seems like a scream of someone being eaten alive in one of those lion cells!
We had enough lion-fodder during the roman empire...
That would be an Å-size battery.
I have a nokia 8000 series phone (i forget the exact model, it's not printed anywhere, oddly)
:P
It's a few years, and pretty 'primitive', but when I'm on the phone that thing get's hot. Not unbearably so, although it does almost get uncomfortable to hold up to my ear.
If these add-ons need so much more power then current cell phone batteries, then they would need to put out a lot more heat too. After all, 1 watt of power used equals about 1 watt of heat produced (not counting things like lights, or EM radiation).
IMO those things would be better served by smaller, cpus with more computational power per unit of actual power.
Of course longer battery life would be helpful to
autopr0n is like, down and stuff.
And you'll still need a source of electricity to charge it. I'm still holding out for fuel cells.
Why... fuel cells still need to filled. Are you saying you have a more ready supply of methane or hydrogen gas then you do electricity?
Power outlets exist in almost every man made structure in the industrial world. And in most cars too. I can charge my laptop/cellphone/PDA anywhere. The same can't said about the fuels used in fuel cells.
autopr0n is like, down and stuff.
Now where did I put that battery...
all the guy wanted was to submit a Slashdot story that would show up first in alphabetical order.
This is a constant, dependant on the substance used in the battery. They may get 10 percent more watt hours in this battery. Peak current should be better, due to larger surface area of the anode/cathode. Lithium Polymer batteries have a higher energy density BTW.
The law is a weapon of the government, not a protection for the likes of you. Surely you understand that.
You know the scary thing? I read "lion" as being Lithium Ion right off the bat. Even the AAAAAAAAAAA as being a play on AA/AAA size batteries.
"Lion", as in the animal, never once occurred to me until I read your message.
Frankly, your interpretation would make more sense to the world at large. Proof positive that I need to get out more!
"They do not preach that their god will rouse them, a little before the Nuts work loose." Kipling, 'The Sons of Martha'
Why do I picture a large cat on a treadmill turning a generator in a cage on the cart I tow behind me powering my cell phone?
134340: I am not a number. I am a free planet!
You can't scale things down like this. Rules change as you get smaller. Cells, as in human cells, don't have little batteries with discrete anodes and cathodes floating around. The way cells use energy is fundamentally different from a battery. People will have to shift their point of view away from making 'big things small', and start thinking in different ways. It is possible to miniaturize vacuum tubes, for example, but to get really small circuits there had to be a (sigh.. marketroid speak, but it works well) paradigm shift. I think the same thing will happen with energy storage.
Mostly random stuff.
These little batteries can be used in tiny little dildos that attach themselves directly to a women's clitoris. They can wear them whenever they go out, when they go to work, or during a date.
They can even wear them during sex and they won't have to fake orgasms anymore. The man will think he's studly and the woman will be satisfied. None will be all the wiser and there will at least be peace on earth.
Oh happy day!
I used to know this, but the naming convention came around sometime in the early 50s or late 40s. There were A, B, C, D dry cells, and then those big tall 8 inch ones that were about 2 inches around, they had some name also. I believe it was set up by the government in some capacity, possibly the military. Could be wrong.
As far as why "A" then "AA", then "AAA" this probably comes from the way that guages are measured. As guage gets larger, you get closer to 0, then you have 00, 000, 0000. It was probably the same line of thought that cause the creater of the first battery smaller than the A to name it AA. Just speculation, but it makes sense.
This link explains what happened to the "B" cell:
http://exn.ca/Stories/1998/06/16/51.asp
Couldn't find much else on Google, because battery is such a common word, and "dry cell" gets you lots of biology links.
I've had enough abrasive sigs. Kittens are cute and fuzzy.
Does anyone know why sizes 'A' and 'B' aren't sold? Why the jump from AA to C ?
Cheers
Li-Ion batteries are a great improvement in terms of capacity over older NiCad and NiMH (Every time I see that, I think of that movie with the rats... but I digress.) technologies. In terms of price; however, I'm less than satisifed. My cell phone uses a Li-Ion battery and it seems like it's nearing the end of its useful life. You can imagine how shocked (pun intended) I was when I found out the cost of a replacement battery was equal to the cost I originally paid for the cell phone! The advances in battery technology are nice, but I'd be more than willing to accept bulkier batteries if they were a lot less costly.
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DRM is like antifreeze, to the MPAA/RIAA it's sweet, to the consumers it's poison.
Oh great, my new boom box takes 8192 AAAAAAAAA batteries. (Sold separately)
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- - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
We can make nano-vibrators vibrators for cockroaches. A good envronmentaly safe way to reduce the number of cockroaches in the world!
-- Many men would appreciate a woman's mind more if they could fondle it
It's the sound you make when the RF from your cellphone powered by these turns your neurons into Kentucky Fried Brains.
This sig no verb.
From what I understand Energizer Lithium AAs are not rechargable.
Does anyone make recharble Li-ion AAs?
I know if you pull a NiMH or NiCd battery pack apart, one useally finds that the battery pack consists of standard NiMH or NiCd recharble 'C', 'A', 'AA' or 'AAA' batteries inside the buggers. So designing the appliance to use some odd shape battery pack was just a way of making extra money selling special appliance specific battery packs that are in reality normal rechargables.
So do Li-ion battery packs, consist of standard size rechargable cells, when pulled apart?
& why arn't Li-ion recharble AA or AAA batteries avaliable?
Phew, that's a relief!
When I saw "AAAAAAAAAAAAAAAAAAAA" my first thought was: "Someone's trying a buffer overflow attack..."
"Nano-anodes"? Have I suddenly fallen into a Mork and Mindy episode?
Patrick Doyle
I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....