Spinel lithium titanate (Li_4Ti_5O_(12)) as novel anode material for room-temperature sodium-ion battery  

作　　者：Zhao Liang Pan Hui-Lin Hu Yong-sheng Li Hong Chen Li-quan 赵亮;潘慧霖;胡勇胜;李泓;陈立泉(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Physics B》2012年第2期32-35,共4页中国物理B（英文版）

基　　金：supported by the National High Technology Research and Development Program of China (Grant No.2009AA033101);the National Basic Research Program of China (Grant No.2010CB833102);the National Natural Science Foundation of China (Grant No.50972164);the Chinese Academy of Sciences Project (Grant No.KJCX2-YW-W26);the Hundred-Talent Project of the Chinese Academy of Sciences

摘　　要：This is the first time that a novel anode material, spinel Li4Ti5O12 which is well known as a ＂zero-strain＂ anode material for lithium storage, has been introduced for sodium-ion battery. The Li4Ti5O12 shows an average Na storage voltage of about 1.0 V and a reversible capacity of about 145 mAh/g, thereby making it a promising anode for sodiumion battery. Ex-situ X-ray diffraction （XRD） is used to investigate the structure change in the Na insertion/deinsertion process. Based on this, a possible Na storage mechanism is proposed.This is the first time that a novel anode material, spinel Li4Ti5O12 which is well known as a ＂zero-strain＂ anode material for lithium storage, has been introduced for sodium-ion battery. The Li4Ti5O12 shows an average Na storage voltage of about 1.0 V and a reversible capacity of about 145 mAh/g, thereby making it a promising anode for sodiumion battery. Ex-situ X-ray diffraction （XRD） is used to investigate the structure change in the Na insertion/deinsertion process. Based on this, a possible Na storage mechanism is proposed.

关 键 词：SPINEL lithium titanate LI4TI5O12 sodium-ion battery 

分 类 号：TM910.4[电气工程—电力电子与电力传动]