And it will be available in 10 years.
New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
41–50 of 89 posts
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#42If a car battery can be made to charge to 50% capacity in about a minute with a total range greater than 60 miles or so, then a very novel solution to charging electric cars becomes possible -- induction coils at stop lights and along highways.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#43Earlier quoted context omitted.
We agree on the topic. Indeed it is tricky to strike the right balance when trying to edit something down to fit and keep the meaning. I probably do this dozens of times a week trying to get the full intent of a thought down to 140 chars. :)
Could always opt for the scientific notation. "New Li+ battery design - 2,000x more powerful, recharges 1,000x faster" Now you just have to know that Li is Lithium and the + is for an ion.
> Could always opt for the scientific notation.
> "New Li+ battery design - 2,000x more powerful, recharges 1,000x faster"
In that spirit (and just for fun): "New Li+ battery design - 2k x more power, charges 1k x faster.
I originally tried scientific numeric notation, but that didn't actually shorten the title: 2x10^3 versus 2,000. :(
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#44For people having trouble interpreting the graph, the legend from the actual paper says: "The energy and power density of our microbattery cells (A–H) at low to high C rates, along with previous microbattery cells having 3D electrodes (MB1 through MB3). The plot also includes the performance range of conventional power technologies and commercial batteries from A123 (high power) and Sony (high energy)." Where C rates…
Electric cars?
One parameter not discussed so far is self discharge rates. Maybe a problem maybe not, either way that parameter is going to be important.
For simple regenerative braking its not so big of a deal but if you're hoping to use it as a primary energy source its a big deal.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#45The most exciting application they can imagine for a super-battery is smaller cell phone batteries? That doesn't seem very forward thinking.
Excellent surface area to volume ratio for cooling.
If you want to shove tens of amps into something tiny its gotta be nearly perfectly efficient and/or excellent cooling and/or be tiny to get a great surface area/volume ratio.
I bet this would rock for bluetooth earpieces.
Also people expect some apps like cars to last for 15 years, but if you're "nervous" about long life, your stereotypical disposable cellphone is a great app.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#46To be clear, this is the ExtremeTech blog, all of their commentary leans heavily toward wishful thinking. For context a number of surface area improvements in Lithium-Ion anodes have failed at scale due to the creation of lithium dendrites (metal 'wires' that grow during recharge) which have either rendered large sections of the anode worthless and reduced the capacity of the battery, or created rapid exothermic reac…
Its on the BBC New site as well which is actually much less clear in explaining that this research is applicable to the supercapacitor space as opposed to 'normal' Li* batteries.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#47Design != Build != Shipping I love this research but have seen similar articles for the past decade. At scale production is hard, just ask A123.
The ideal: Design, build, sell.
The real: Sell, build, design.
:)
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#48This is a classic case of a submission title taking liberties with the meaning of the article it links. This submission's title: "New lithium-ion battery 2000 times more powerful, recharges 1000 times faster" The actual title: "New lithium-ion battery design that’s 2,000 times more powerful, recharges 1,000 times faster" The missing word is "design", a word that is crucial to the meaning of the article. The article d…
If HN would not force you to reduce titles to The original is 95 characters. "design that’s " and two comma's in the numbers get dropped and we're down to exactly 78. Dropping words from a title in order to fit the 80 char limit is a bit of an art if you don't want to change the meaning, and making a new title is frowned upon because then you care not using the original title. Effectively you can't post an article wi…
> Effectively you can't post an article with a title > 80 characters and not break the rules.
I never knew that. Thanks for the heads-up. I find it annoying that people rewrite headlines, but I didn't realize there was an actual reason.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#49Oh good, I can play Angry Birds longer.
Re: New lithium-ion battery design – 2,000x more powerful, recharges 1,000x faster
#50This is a classic case of a submission title taking liberties with the meaning of the article it links. This submission's title: "New lithium-ion battery 2000 times more powerful, recharges 1000 times faster" The actual title: "New lithium-ion battery design that’s 2,000 times more powerful, recharges 1,000 times faster" The missing word is "design", a word that is crucial to the meaning of the article. The article d…
The original title wasn't the greatest either, probably engineered to be link-bait. Nobody cares how fast you can get power out of the thing, they care how much total energy it holds - and the article is clear that it is comparable or slightly worse than current technology.
Low internal resistance can make life very exciting in case of short circuit.
Maybe a decade ago there was a fad of sticking a bare, unbiased LED across a button cell and relying on the internal resistance of the cell to current limit the LED. Then you superglue a magnet on it and toss it and you've got a LED throwie. If you tried that with a super low internal resistance battery like this, the effect would be vaguely similar to sticking the LED across a power outlet (boom).