Advantages of blending LiNi0.8Co0.2O2 into Li1+xMn2-xO4 cathodes

被引：83

作者：

Numata, T

Amemiya, C

Kumeuchi, T

Shirakata, M

Yonezawa, M

机构：

[1] NEC Corp Ltd, Funct Devices & Mat Res, Miyamae Ku, Kawasaki, Kanagawa 2168555, Japan

[2] NEC Corp Ltd, NEC Electron Devices, Elect Component Operat Unit, Miyamae Ku, Kawasaki, Kanagawa 2168555, Japan

来源：

JOURNAL OF POWER SOURCES | 2001年 / 97-8卷

关键词：

manganese spinel; LiNi0.8Co0.2O2; Mn dissolution; blended cathode; storage; recovery capacity;

D O I：

10.1016/S0378-7753(01)00753-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

LiNi0.8Co0.2O2 blending was investigated as a way to overcome the problems associated with lithium ion rechargeable batteries that use manganese: spinel as a cathode material. LiNi0.8Co0.2O2 is a useful additive for preventing HF-generation and Li-loss in electrolytes during storage at elevated temperatures. In experiments, the Mn dissolution from the spinel structure into the electrolyte was decreased by adding LiNi0.8Co0.2O2 This dissolution was almost completely eliminated by 15 wt.% LiNi0.8Co0.2O2 blending. As a result, this blending technique can prevent the decline in capacity caused by storage at elevated temperatures. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：358 / 360

页数：3

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