电池2018，Vol.48Issue(1)：29-33,5.DOI:10.19535/j.1001-1579.2018.01.008
锂离子电池电极材料的低温特性
Low-temperature performance of electrode materials of Li-ion battery
邹超 1丁冬雁1
作者信息
- 1. 上海交通大学材料科学与工程学院,上海200240
- 折叠
摘要
Abstract
A prismatic Li-ion battery with aluminum shell,which was widely used as a replaceable cell phone battery was used to study the low-temperature performance of electrode materials.A LiCoO2 positive material,large-flake graphite-2H negative material and a single layer high density polyethylene separator were used.Anomalies as lithium plating,increasing internal resistance,capacity reducing and cell swelling were observed during 0 ℃ low temperature cycle (charge rate:1.0 C;discharge rate:0.2 C/0.5 C).Based on the disassemble of battery and the analysis of precipitate of electrode,large-flake graphite-2H could not be used as the negative material of the Li-ion battery which was often used in low-temperature applications.This kind of battery could not be used under low-temperature or safety accidents could be easily caused by battery swelling.关键词
锂离子电池/鼓包/析锂/低温特性Key words
Li-ion battery/swelling/lithium plating/low-temperature performance分类
信息技术与安全科学引用本文复制引用
邹超,丁冬雁..锂离子电池电极材料的低温特性[J].电池,2018,48(1):29-33,5.
