FACTOR AFFECTING THE CAPACITY RETENTION OF LITHIUM-ION CELLS

被引：116

作者：

OHZUKU, T

UEDA, A

YAMAMOTO, N

IWAKOSHI, Y

机构：

[1] Electrochemistry and Inorganic Chemistry Laboratory, Department of Applied Chemistry, Faculty of Engineering, Osaka, 558, Sugimoto 3-3-138, Sumiyoshi

来源：

JOURNAL OF POWER SOURCES | 1995年 / 54卷 / 01期

关键词：

LITHIUM-ION CELLS; CAPACITY; RECHARGEABLE LITHIUM CELLS;

D O I：

10.1016/0378-7753(94)02047-7

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：

Capacity failure due to the imbalance of coulombic efficiencies between positive and negative electrodes in a lithium-ion (shuttlecock) cell was examined by fabricating two types of cells, i.e., Li[Li1/3Ti5/3]O-4/LiNiO2 and carbon/LiNiO2. Rechargeable capacity of a lithium-ion cell consisting of Li[Li1/3Ti5/3]O-4 and LiNiO2 faded more rapidly than that of a cell based on natural graphite and LiNiO2 in spite of superior coulombic efficiency of Li[Li1/3Ti5/3]O-4 (very close to 100%) compared with that of natural graphite (about 98%). The important role of the electrolyte upon the capacity retention of lithium-ion cells is described and specific problems to extend cycle life are discussed.

引用

页码：99 / 102

页数：4

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