Carboxymethylchitosan/poly（ethyleneoxide）watersolublebinder:Challengingapplicationfor5VLiNi0.5Mn1.5O4cathode

被引：0

作者：

Haoxiang Zhong ^{[1
]}

Jidian Lu ^{[2
]}

Aiqin He ^{[2
]}

Minghao Sun ^{[1
,3
]}

Jiarong He ^{[1
,3
]}

Lingzhi Zhang ^{[1
]}

机构：

[1] Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences

[2] Guangzhou Lithium Force Energy Technology Co, Ltd

[3] University of Chinese Academy of Sciences

来源：

Journal of Materials Science & Technology | 2017年 / 33卷 / 08期

关键词：

Carboxymethyl chitosan; Poly(ethylene oxide); Water soluble binder; LiNi0.5Mn1.5O4; Lithium ion battery;

D O I：

暂无

中图分类号：

TM912 [蓄电池]; TQ437 [各种用途的胶粘剂];

学科分类号：

0808 ; 0817 ;

摘要：

Carboxymethyl chitosan/poly（ethylene oxide）(CCTS/PEO) composite is firstly reported as a water soluble binder for the application of 5V LiNi0.5Mn1.5O4 cathode in Li-ion batteries. Both CCTS and PEO show a high electrochemical oxidation potential of above 5.0 V（vs. Li/Li+）. The electrochemical performances of LiNi0.5Mn1.5O4（LNMO） cathodes with CCTS/PEO composite binders of different mass rates are investigated, it is found that LiNi0.5Mn1.5O4 cathode with an optimized CCTS/PEO（85/15, w/w） composite exhibits a slightly better cycling performance than that of polyvinylidene fluoride（PVDF）, retaining 81.4% capacity as compared with 79.8% for PVDF at 0.5C rate after 200 cycles. LNMO with PEO/CCTS（85/15,w/w） exhibited the better rate capability than that of PVDF. These results demonstrate that CCTS/PEO composite can be potentially used as a water-soluble binder for 5 V LNMO cathode.

引用

页码：763 / 767

页数：5

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