Thursday, June 07, 2012

New Battery Tech May Triple Battery Capacity

Battery chemistry may have improved battery performance. Iron, to alkaline, nickel-cadmium, nickel metal hydride to the various lithium variations. Weight and recharargability were the driving motives. However most of the improvements in live were centered around packing in more storage media or making high density batteries which often proved problematic
in it's own problem.

Now I read about battery researchers at Washington State University have figured out a way to make lithium-ion batteries using an anode made of tin instead of graphite. Graphite, while easy to form does not perform optimally under high current loads. Tin anodes on the other hand could support 3 times as much storage. The problem with tin however is that over time it grows what can commonly be called "whiskers". These whiskers can become so bad that they can short out electronics or batteries.

The researchers however have said, well if we can not remove the whiskers, why not put them to our benifit. The researchers have succeeded in forcing tin whiskers uniformly at the quantum level and they have been able to take these tin whisker anodes and electroplate them! One of the other gains is that the electroplated tin anodes can be made much less expensively. Plus they would last longer, and recharge much faster plus holding 3 times the charge!

Check out the full Dvice article here

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