Surface-modified polyethylene separator with hydrophilic property for enhancing the electrochemical performance of lithium-ion battery

被引：28

作者：

Ahn, Yong-keon ^{[1
]}

Kwon, Yong Kab ^{[1
]}

Kim, Ki Jae ^{[1
]}

机构：

[1] Konkuk Univ, Dept Energy Engn, 120 Neungdong Ro, Seoul 05029, South Korea

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 2020年 / 44卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

ammonium persulfate; hydrophilic; lithium-ion battery; polyolefin; separator; surface treatment; MEMBRANE; POLYPROPYLENE; ELECTROLYTES; TRANSPORT; OXIDATION; POWER;

D O I：

10.1002/er.5401

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The suggested surface treatment using ammonium persulfate (APS) successfully introduces hydrophilic functional groups onto the microporous structure of the polyethylene (PE) separators, leading to a high affinity toward polar liquid electrolytes without degrading the intrinsic physical properties of the separator. This improves the lithium-ion migration and ionic conductivity of the APS-treated separator, affording a stable cycle performance (92.5% at 90th cycle) and significantly improved rate capability (87.5% at 3 C).

引用

页码：6651 / 6659

页数：9

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