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

被引：26
|
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
收藏
页码：6651 / 6659
页数：9
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