含部分晶须的钛酸锂的制备及其性能表征  

STUDY ON PREPARATION AND PROPERTIES OF Li_4Ti_5O_(12) CONTAINING A FRACTION OF WHISKERS

作　　者：邓昭平[1] 倪师军[1] 李思平[1] 夏新蕊[1] 王鹏威[1] 

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《矿物岩石》2006年第4期98-100,共3页Mineralogy and Petrology

基　　金：四川省应用科学基金项目(04JY029-008-2)

摘　　要：L i4T i5O12是一种循环性能好、有很好的充放电平台、理论比容量较大、不与电解液反应的新型负极材料,研究探索以偏钛酸和碳酸锂为主要原料制备含部分晶须的尖晶石型晶型L i4T i5O12的一种方法。通过此工艺在1 000℃煅烧8 h后在样品中约20%的晶须出现,晶须的直径≤0.5μm,晶须的长度约为7μm。Li4Ti5O12 are new negative electrode materials which have long-term cycle property, excellent charge-discharge level, large theoretical specific capacity, and can not react with elec trolytes. The process of preparing spinel Li4Ti5O12 containing a fraction of whiskers was introduced in this paper,and the sample was charactered by some ways. A sample containing 20% whiskers,with a diameter of ≤0. 5 μm and length of about 7 μm,was obtained by the process, when the calcining temperature was 1 000℃ and calcining time was 8 hrs.

关 键 词：钛酸锂 锂离子电池 负极材料 尖晶石 晶须 

分 类 号：O784[理学—晶体学]