Phone 10 times the standby time of lithium battery research Date:2008-12-22 14:25:34 |
| December 20, 2007, Stanford University researchers of the latest relevant news that has successfully developed a lithium battery life will be increased by 10 times the new technology, the project leader of the Stanford University Materials Science and Engineering Assistant Professor Yi Cui ( Cui Yi, Chinese nationality) that is currently working with a battery manufacturer to negotiate a cooperation agreement. Lithium-ion battery capacity by the battery anode can be attached to the number of lithium-ion decided that the traditional use of carbon anode materials, and the silicon material can be much greater than the amount of absorption of carbon materials. However, rechargeable lithium batteries in the process, the battery will be absorbed in the silicon with the positively charged lithium-ion silicon so that the expansion in the use of batteries in the process of lithium-ion spilled from the silicon, silicon led to the contraction, the expansion and contraction Would lead to silica fume, and thus the loss of battery performance. The new study of silicon nanowires battery solved the problem, the use of nanotechnology made of silicon nanowires in the lithium-ion can absorb four times the swelling, but unlike other silicon materials, it will not be broken in the process 【back】 |
