Researchers Claim 10x Increase in Lithium-Ion Power
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Nov 16, 2011, 1:15 PM by Eric M. Zeman
updated Nov 16, 2011, 1:20 PM
Researchers at Northwestern University have created a new way to make Lithium-Ion batteries that would have a ten-fold increase in the amount of energy they could hold compared to today's LiIon batteries. The breakthrough comes in switching the anode to silicon, and using graphene sheets to separate the layers from one another to eliminate the swelling that normally occurs when using silicon. The researchers then put holes in the sheets to allow for faster recharge times. "We have found a way to extend a new lithium-ion battery's charge life by 10 times," said researcher Harold H. Kung, lead author of the paper detailing the work. "Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium-ion batteries on the market today." Kung's team has more work to do, however. Next it plans to examine ways to improve the cathode and electrolyte within LiIon batteries so that the batteries would shut off under high temperatures. Kung's team didn't say when it expects these advances to be applied to lithium batteries used by devices such as smartphones and tablets.
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150 charges = 1 year?
can you imagine being able to use your phone for a week without charging it????