锂离子电池正极材料锰酸锂的制备与改性研究  

Preparation and modification of lithium manganate as cathode material for lithium ion batteries

作　　者：康彩荣[1] 沈丽娜[2] 丁毅[1] 莫祥银[3] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]南京工业大学环境学院 [3]南京师范大学分析测试中心江苏省生物功能材料重点实验室

出　　处：《无机盐工业》2009年第2期10-13,共4页Inorganic Chemicals Industry

摘　　要：锂离子电池是绿色高能可充电池,具有工作电压高、比能量大、自放电少、循环寿命长、无记忆效应、无环境污染等突出优点。尖晶石型锰酸锂正极材料具有无毒、成本低、电容量高等优点,近年来引起广泛关注。但在高温环境下,锰酸锂正极材料的充放电容量迅速下降,成为制约其发展的主要缺点。从锰酸锂的制备与改性研究方面综述了锂离子电池正极材料锰酸锂的研究进展,在此基础上,提出了正极材料锰酸锂的发展方向。Lithium ion batteries are green, high energy, and chargeable cells, which have predominant advantages, such as high working voltage, high specific capacity,low local action,long cycle life,no-memory effect,and non-environmental pollution. In reeent years, spinel lithium manganate as cathode material has attracted wide attention due to its non-toxic,low cost,and high specific capacity etc.. However,it has a main problem related to quick capacity fading at high temperature, whieh prohibited its large-scale applieation. Researeh progress in recent years on preparation and modification of lithium manganate cathode material was introduced,and based on that,the major developing trend was prospected.

关 键 词：锂离子电池 正极材料 锰酸锂 

分 类 号：TQ131.11[化学工程—无机化工]