Effect of a thin ceramic-coating layer on thermal and electrochemical properties of polyethylene separator for lithium-ion batteries

被引：235
作者：
Shi, Chuan [1 ]
Zhang, Peng [2 ]
Chen, Lixiao [1 ]
Yang, Pingting [2 ]
Zhao, Jinbao [1 ,2 ,3 ,4 ]
机构：
[1] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Sch Energy Res, Xiamen 361102, Peoples R China
[3] Xiamen Univ, State Key Lab Phys Chem Solid Surface, Xiamen 361005, Peoples R China
[4] Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 361005, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2014年 / 270卷
关键词：
Lithium ion batteries; Separator; Ceramic-coating; Carboxymethyl cellulose (CMC); Styrene-butadiene rubber (SBR); ELECTROLYTES; ENHANCEMENT; PERFORMANCE;
D O I：
10.1016/j.jpowsour.2014.07.142
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, a new kind of ceramic-coating separator for lithium-ion batteries is successfully prepared by forming a ceramic layer consisted of Al2O3 powder, carboxymethyl cellulose (CMC) and styrene-butadiene rubber (SBR) mix binder onto one side of pristine PE separator. During the preparation of the separator, water is used as solvent and a very small amount of SBR-CMC mixture is applied as binder to obtain better thermal stability. The effect of thickness of the ceramic-coating layer on its thermal stability, physical properties and electrochemical performance is also investigated. The results clearly showed that the ceramic-coating separator with SBR-CMC binder has wonderful thermal stability, good wettability and high uptake of liquid electrolyte. Pouch cell tests with the ceramic-coating separator also show excellent stable cycle performance. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：547 / 553
页数：7
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