Research on Atomic-Scale Investigation of Li Storage Mechanism in Spinel Li_4Ti_5O_(12)  

作　　者：Xia Lu Lin Gu Yong-Sheng Hu Hong Li Liquan Chen 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences

出　　处：《Science Foundation in China》2012年第2期19-21,共3页中国科学基金（英文版）

基　　金：supported by funding from the NSFC(50972164);"863"Project(2009AA033101);"973"Projects(2009CB220104,2010CB833102);CAS project(KJCX2-YW-W26);One Hundred Talent Project of the Chinese Academy of Sciences

摘　　要：Nowadays,there is an increasing need for large-scale energy storage with the developments of renewable energy sources including solar and wind power.Among the candidates,Li-ion batteries have been regarded as one of the most important alternatives to power the electric vehicles (EVs) and/or to store electric energy in largescale. Nonetheless,the performance of present Li ion batteries can still not meet the requirementsNowadays, there is large-scale energy storage an increasing need for with the developments of renewable energy sources including solar and wind power. Among the candidates, Li-ion batter- ies have been regarded as one of the most impor- tant alternatives to power the electric vehicles （EVs） and/or to store electric energy in large- scale. Nonetheless, the performance o{ present Li ion batteries can still not meet the requirements for such applications. Spinel Li4 Ti5 O12, with zero- strain characteristics and structural stability during charge and discharge process, plays a significant role in long-life Li-ion batteries. However, it is still under dispute on the reaction mechanism, charge compensation and gas-release （possible sur- face structure） in the Li4 Ti5 Ol2 electrode during cycling. In order to further improve the battery performance, a more fundamental and microscopic understanding on the Li storage mechanism in Li4 Ti5 O12 is essential.

关 键 词：电极反应机理 能源存储 尖晶石 原子尺度 锂离子电池 可再生能源 电动汽车 应变特性 

分 类 号：TM912[电气工程—电力电子与电力传动]