LiNi0.5Mn1.5O4包覆锰酸锂正极材料及其性能研究

来源 :第十八次全国电化学大会 | 被引量 : 0次 | 上传用户：yaoyao1021

【摘要】

：

尖晶石型锰酸锂(LiMn2O4)正极材料具有资源丰富、价格低廉、功率性好和安全性高等优点,被认为是最具有应用前景的正极材料之一.但是LiMnO4的循环稳定性问题,尤其是高温(≥255℃)循环容量衰减严重,制约了其广泛应用.研究认为,导致LiMn2O4循环时容量衰减的主要原因有:(1)锰离子的溶解[1];(2)过放电时发生John-Teller效应;(3)高温、高电压下电解液分解;(4)氧缺陷.

【作者】

：

张嫒娇张建李晓哲郭慰问邵光杰夏保佳

【机构】

：

河北省应用化学重点实验室,燕山大学环境与化学工程学院,秦皇岛;中国科学院上海微系统与信息技术研究所,上海,200050

【出处】

：

第十八次全国电化学大会

【发表日期】

：

2015年7期

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LiNi0.5Mn1.5O4包覆锰酸锂正极材料及其性能研究

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