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不同电极面密度锂离子电池的容量衰减机理

丁冬 吴国良 庞静

电池2011,Vol.41Issue(4):202-205,4.
电池2011,Vol.41Issue(4):202-205,4.

不同电极面密度锂离子电池的容量衰减机理

Capacity fading mechanism of Li-ion battery with different electrode surface densities

丁冬 1吴国良 1庞静1

作者信息

  • 1. 北京有色金属研究总院动力电池研究中心,北京100088
  • 折叠

摘要

Abstract

Li-ion battery using LiFePO4 as cathode active material assembled with different electrode surface density(surface density of positive was 11.0 mg/cm2,14.0 mg/cm2 and 17.0 mg/cm2, respectively), the cycle performance at normal temperature were researched. AC impedance,XRD and SEM methods were used to analyze the mechanism of capacity fading. The reasons for the difference of cycle performance at normal temperature were mainly for the different reversible lithium loss of the battery.

关键词

锂离子电池/电极/面密度/循环性能/容量衰减机理

Key words

Li-ion battery/ electrode/ surface density/ cycle performance/ capacity fading mechanism

分类

信息技术与安全科学

引用本文复制引用

丁冬,吴国良,庞静..不同电极面密度锂离子电池的容量衰减机理[J].电池,2011,41(4):202-205,4.

电池

OA北大核心CSCDCSTPCD

1001-1579

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