2024年5月13日发(作者：汤沛儿)
信息记录材料 2020年3月 第21卷第3期
综述·论著
隔膜中残油量对锂电池性能的影响
宋建龙
1
，解娜娜
2
，王月勤
1
，王 莉
1
，王 磊
1
，王小记
1
（1乐凯胶片股份有限公司<河北省新能源膜材料技术创新中心，保定市新能源膜材料技术创新中心>
河北 保定 071054）
（2保定乐凯新材料股份有限公司 河北 保定 071054）
【摘要】锂离子电池隔膜在锂离子电池中主要起隔绝正负极防止短路和允许锂离子导通的作用
[1]
，因此，锂离子电
池隔膜品质的优劣直接影响到锂离子电池的应用性能。在锂电池隔膜制备的过程中，以石蜡油作为造孔剂，用热致相分
离法制备聚乙烯微孔膜，石蜡油的残留不可避免。本文研究了隔膜中石蜡油的残留量对电池自放电、倍率放电、高温存
储、循环性能等应用性能的影响。研究结果表明，残油量越低锂电池的应用性能越优。
【关键词】锂离子电池；残油量；隔膜；电性能
【中图分类号】TM91 【文献标识码】A 【文章编号】1009-5624（2020）03-0005-04
Influence of the amount of residual oil in the separator on the performance of lithium batteries
Song Jianlong
1
, Xie Nana
2
, Wang Yueqin
1
,Wang Li
1
, Wang Lei
1
, Wang Xiaoji
1
1 Lekai Film Company Limited., Baoding 071054,
Hebei New Energy Membrane Material Technology Innovation Center,
Baoding New Energy Membrane Material Technology Innovation Center;
2 Baoding Lekai New Material Co., Ltd., Baoding 071054,China
【
Abstract
】
Lithium-ion battery separators in lithium-ion batteries mainly isolate positive and negative electrodes,
prevent short circuits, and allow lithium-ion conduction
[1]
. Therefore, the quality of lithium-ion battery separators directly
affects the performance of lithium-ion batteries . In the process of preparing lithium battery separators, paraffin oil is used
as a pore-forming agent, and polyethylene microporous membranes are prepared by a thermally induced phase separation
method. Paraffin oil residues are unavoidable. This paper studies the effect of the residual amount of paraffin oil in the
separator on battery self-discharge, rate discharge, high-temperature storage, and cycle performance. The research results
show that the lower the amount of residual oil, the better the performance of lithium batteries
.
【
Key words
】
Lithium-ion battery; Residual oil; Lithium-ion battery separator; Electrical performance
1
2024年5月13日发(作者：汤沛儿)
信息记录材料 2020年3月 第21卷第3期
综述·论著
隔膜中残油量对锂电池性能的影响
宋建龙
1
，解娜娜
2
，王月勤
1
，王 莉
1
，王 磊
1
，王小记
1
（1乐凯胶片股份有限公司<河北省新能源膜材料技术创新中心，保定市新能源膜材料技术创新中心>
河北 保定 071054）
（2保定乐凯新材料股份有限公司 河北 保定 071054）
【摘要】锂离子电池隔膜在锂离子电池中主要起隔绝正负极防止短路和允许锂离子导通的作用
[1]
，因此，锂离子电
池隔膜品质的优劣直接影响到锂离子电池的应用性能。在锂电池隔膜制备的过程中，以石蜡油作为造孔剂，用热致相分
离法制备聚乙烯微孔膜，石蜡油的残留不可避免。本文研究了隔膜中石蜡油的残留量对电池自放电、倍率放电、高温存
储、循环性能等应用性能的影响。研究结果表明，残油量越低锂电池的应用性能越优。
【关键词】锂离子电池；残油量；隔膜；电性能
【中图分类号】TM91 【文献标识码】A 【文章编号】1009-5624（2020）03-0005-04
Influence of the amount of residual oil in the separator on the performance of lithium batteries
Song Jianlong
1
, Xie Nana
2
, Wang Yueqin
1
,Wang Li
1
, Wang Lei
1
, Wang Xiaoji
1
1 Lekai Film Company Limited., Baoding 071054,
Hebei New Energy Membrane Material Technology Innovation Center,
Baoding New Energy Membrane Material Technology Innovation Center;
2 Baoding Lekai New Material Co., Ltd., Baoding 071054,China
【
Abstract
】
Lithium-ion battery separators in lithium-ion batteries mainly isolate positive and negative electrodes,
prevent short circuits, and allow lithium-ion conduction
[1]
. Therefore, the quality of lithium-ion battery separators directly
affects the performance of lithium-ion batteries . In the process of preparing lithium battery separators, paraffin oil is used
as a pore-forming agent, and polyethylene microporous membranes are prepared by a thermally induced phase separation
method. Paraffin oil residues are unavoidable. This paper studies the effect of the residual amount of paraffin oil in the
separator on battery self-discharge, rate discharge, high-temperature storage, and cycle performance. The research results
show that the lower the amount of residual oil, the better the performance of lithium batteries
.
【
Key words
】
Lithium-ion battery; Residual oil; Lithium-ion battery separator; Electrical performance
1