Insertion of an Insulating Layer between Cathode and Separator for Improving Storage Characteristics of Li-Ion Batteries

被引：7

作者：

Imachi, Naoki ^{[1
]}

Nakamura, H. ^{[1
]}

Fujitani, Shin ^{[1
]}

Yamaki, J. ^{[2
]}

机构：

[1] Sanyo Elect Co Ltd, Energy Devices Co, Energy R&D Ctr, Nishi Ku, Kobe, Hyogo 6512242, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2012年 / 159卷 / 03期

关键词：

LITHIUM; ELECTROLYTE;

D O I：

10.1149/2.070203jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Deterioration of a Li-ion battery charged to an elevated voltage is investigated. Insertion of an insulating layer consisting of TiO2 powders and PVDF binder between the cathode and the separator suppresses the self-discharge during a storage test at 60 degrees C. This layer prevents the carbonization of the separator by oxidative cathode and this effect is greater when the insulating layer is placed on the cathode than on the separator. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.070203jes] All rights reserved.

引用

页码：A269 / A272

页数：4

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