Oxygen content and electrode characterisitcs of LiMn1.5Ni0.5O4 as a 5 V class cathode material for lithium secondary battery

被引：9

作者：

Idemoto, Y ^{[1
]}

Narai, H ^{[1
]}

Koura, N ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan

来源：

ELECTROCHEMISTRY | 2002年 / 70卷 / 08期

关键词：

Li secondary battery; positive electrode; spinel structure; oxygen content;

D O I：

10.5796/electrochemistry.70.587

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We investigated the change of properties and cathode performance for LiMn1.5Ni0.5O4 as a 5 V class cathode material by changing of synthetic method and heat treatment. The materials synthesized by solid-state method and sol-gel method. Furthermore, the sample of solid-state method was annealed at high Po-2. Mn valence and oxygen content for samples of sol-gel method or annealed at high Po-2 increased compared to the sample of solid-state method. The charge and discharge curves for the sample of sol-gel method and annealed at high Po-2 appeared 4.7 V vs. Li plateau and disappeared at 4.1 V vs. Li plateau. These materials show a good cycle performance.

引用

页码：587 / 589

页数：3

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