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从PVDF粘结剂的角度对不同存储温度下锂离子电池性能进行研究。研究结果表明:在低温-20℃到高温80℃的存储温度范围内,试验的两种电池(LNA和LNB)都未发生变形,说明NA和NB粘结剂在试验温度范围内具有很好的粘接性;在65℃和80℃存储温度下,LNB电池容量保持率比LNA电池容量保持率都高出2个百分点,说明NB粘结剂更适用于较高存储温度;锂离子电池存储温度从25℃上升到80℃或从25℃下降到-20℃时,其电池容量保持率下降了约6个百分点或14个百分点,说明高温或低温存储都会降低NA和NB两种粘结剂制备的锂离子电池容量保持率,但低温存储降低得更多。
Abstract:The performance of lithium ion battery at different storage temperatures was studied from the perspective of PVDF adhesive. The research results showed that in the storage temperature range of low temperature-20 ℃ to high temperature 80 ℃,the two kinds of batteries(LNA and LNB)had not deformed,which indicated that NA and NB adhesives had good adhesion in the test temperature range. At storage temperatures of 65 ℃ and 80 ℃,the capacity retention rate of LNB battery was 2 percentage points higher than that of LNA battery,which indicated that NB adhesive was more suitable for higher storage temperature. When the storage temperature of lithium ion battery increased from 25 ℃ to 80 ℃ or decreased from 25 ℃ to-20 ℃,the capacity retention of battery decreased about 6 or 14 percentage points respectively. It showed that high or low storage temperature could reduce the capacity retention rate of lithium ion batteries prepared by NA and NB adhesives,but the capacity retention rate was reduced more at low storage temperature.
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基本信息:
DOI:10.13416/j.ca.2020.02.011
中图分类号:TM912;TQ433.4
引用信息:
[1]刘星生,董丽君,卢勇等.PVDF粘结剂对不同存储温度下锂离子电池性能影响的研究[J].中国胶粘剂,2020,29(02):43-46.DOI:10.13416/j.ca.2020.02.011.
基金信息:
宜春市2019年秀江人才培养计划