lithium-ion batteries

posts about #lithiumionbatteries more →
Olivine-Type Sony Batteries Die Slow, Charge Like Whoa
Lithium Iron Phosphate Batteries Promise Charging in Seconds, World Braces For Disappointment
Stanford Professor Conjures Up 10x Life on Traditional Li-Ion Batteries
Batteries on a Plane: 339 Burning Batteries Since 2003

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Grendel
08/11/09

In reply to Olivine-Type Sony Batteries Die Slow, Charge Like Whoa
ok, All this talk of Lithium Sulfur Batteries infused in Carbon Nano Structures with 3-4 times todays capacities, then the MIT rapid charging breakthrough...? Am I missing something here? It was reported that all of these technologies made use of existing fabrication methods similar to what we use now... Minus encapsulation and additional processing...
(thankfully this is Gizmodo so the next sentence shouldnt be too much of a shocker)
Why the fuck are we still stuck with shitty battery life!!!!!
I want a laptop that can handle more than an hour and a half of WoW, or a cell phone that goes the whole day without charging, or a damn electric car that recharges in a few minutes.. wtf man
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dingus
08/11/09

In reply to Olivine-Type Sony Batteries Die Slow, Charge Like Whoa
1.1Ah for an 18650 cell? Am I missing something here? Even the cheapest of the cheap 18650s are 2.2Ah at 3.7V.
I guess this makes them good for power tools where power density isn't quite as important as being able to quickly recharge.
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philibuster
08/11/09

@dingus: Power density is now energy density. You are talking about how much energy is stored, they are touting their power.
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dingus
08/11/09

@philibuster: Err... yeah. I meant capacity. I just went netbook battery pack shopping and I've got runtime on my mind.

64W discharge vs. ~15W for standard cells is pretty good for power tools.
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Edited by dingus at 08/11/09 2:25 PM dingus was starred dingus was unstarred

The Lab
08/11/09

In reply to Olivine-Type Sony Batteries Die Slow, Charge Like Whoa
die slow, charge like whoa, explode like ooOW!
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DrumArtist23 - Awesomephile
03/12/09

In reply to Lithium Iron Phosphate Batteries Promise Charging in Seconds, World Braces For Disappointment
I am looking forward to seeing these on the shelves some day at the supermarket, but as some others have said, "This will put the battery business under". In some form I agree with that I guess, but to be honest, if we as a species aren't pushing forward, then what the hell are we doing here?
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GitEmSteveDave_Isn'tFreshPerked
03/12/09

@YouBassTard: So according to you, sharks should be gone as they haven't evolved much in the past million years?
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Grahmo
03/12/09

@LithiumIronman_GitEmSteveDave: a million years isnt much on the evolutionary scale, and sharks have evolved from previous forms to the efficient, powerful fish you see today. Sharks are near the end of their evolutionary timeline, whereas batteries are still near the beginning.

Fast charging batteries would be great also for people who use cordless tools at work. Instead of having 3 or 4 batteries contantly charging , you would only need one.
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GitEmSteveDave_Isn'tFreshPerked
03/12/09

@Grahmo: I was addressing the comment that we as a species aren't pushing forward.
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Elliuotatar
03/12/09

In reply to Lithium Iron Phosphate Batteries Promise Charging in Seconds, World Braces For Disappointment
What are fast charging batteries really good for though? I mean sure it'd be nice if your camera or laptop charged in 20 seconds, but that's hardly a necessity.

The only thing I can think of this being really useful for is for cars, because waiting six hours for your car to charge when it only holds enough charge for 100 miles is not good.

But even if these batteries are all they're cracked up to be, as another article on this I read said, this only gets us halfway to the fully electric car, because the amount of juice that would have to be transferred in order to charge a car in that short a span of time would require way more juice than the gric can provide.

Perhaps this could be solved by stations housing lots of these batteries underground and charging them more slowly, but somehow I don't think the grid will supply enough juice for that either. Anyone know how many car a typical station services in a day?

Maybe another solution would be to have big trucks with huge batteries then? But if I'm not mistaken, the amount of juice a battery holds is much less than the amount of energy in the same weight of gas. So having "tanker" trucks haul juice around in giant batteries to refuel the stations probably won't work either.
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GitEmSteveDave_Isn'tFreshPerked
03/12/09

@Elliuotatar: Well, this also means solar charging would be more viable, as the battery can absorb the charge quickly. You could also harness the power of stopping/going downhill/solar roof panels/etc... to charge your batteries while driving.
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GitEmSteveDave_Isn'tFreshPerked
03/12/09

In reply to Lithium Iron Phosphate Batteries Promise Charging in Seconds, World Braces For Disappointment
Wait, how could this be announced? Doesn't Big Oil, who run Big Auto, all of which are controlled by the Reptoids from Alpha Draconis using drugs from Big Pharma, keep stuff like this from coming out? Well, if MIT disappears, I think we all know why!
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Gerb
03/12/09

In reply to Lithium Iron Phosphate Batteries Promise Charging in Seconds, World Braces For Disappointment
If batteries storage capacity ever became truely lossless, and fatigue became a thing of he past, then surely this would put battery manufacturers out of business. You'd buy one variety/set of battery for each gadget you own and you would never need to buy them again.
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GitEmSteveDave_Isn'tFreshPerked
03/12/09

@Gerb: I don't think so. If I read this correctly, in exchange for the speed, you lose overall capacity. Which would mean the batteries in your devices would have to be bigger to duplicate their current performance. But in something like a car, which is larger, this would be great as you can finally use something like fly wheels to capture power while coasting/decelerating.
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