Stanford University researchers related the latest news, have successfully developed a lithium battery life time will increase to 10 times the new technology, the project leader of Stanford University's Materials Science and Engineering Assistant Professor YiCui (Cui Yi, the Chinese Nationality) said the current Is working with a battery manufacturers to negotiate cooperation agreements. The capacity of lithium-ion batteries battery anode attachment to the number of lithium-ion decision, the traditional use of the carbon anode materials, silicon can be much greater than the amount of absorption of carbon materials. However, rechargeable lithium batteries in the process of the silicon cells will absorb the positively charged lithium-ion with the expansion of silicon, and the use of batteries in the process of lithium-ion from the silicon in a nosedive, resulting in Silicon contraction, the expansion and contraction Will lead to silica fume, and then to the loss of battery performance. New research of silicon nanowires battery solve this problem, using nanometer technology into the silicon nanowires in lithium-ion can absorb four times expansion, but unlike other silicon material, it will not be broken in this process. |