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

被引：246

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

页码：547 / 553

页数：7

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