Cool battery research news -> Lithium Phosphate @ 400C rate

[letus]

I came across some really cool news regarding research into Lithium Phospate cells.

Cliff's notes: 400C charge/discharge rates.

http://arstechnica.com/science/news/...10-seconds.ars

But the truly surprising features of the cell came when the authors tweaked the cathode to allow higher currents to be run into the cell. Going from a rate of 2 Coulombs to 200 dropped the total capacity down to about 110mAh/g, but increased the power rate by two orders of magnitude (that's a hundred-fold increase) compared to traditional lithium batteries. Amazingly, under these conditions, the charge capacity of the battery actually increased as it underwent more charge/discharge cycles. Doubling the charge transport to 400C cut the capacity in half, but again doubled the power rate. At the 400C rate, the entire battery would discharge in as little as nine seconds. That sort of performance had previously only been achieved using supercapacitors.

[ohmyCLOD!]

That's pretty cool, thanks for sharing...