Polyacrylate as Functional Binder for Silicon and Graphite Composite Electrode in Lithium-Ion Batteries

被引：53

作者：

Komaba, Shinichi ^{[1
]}

Ozeki, Tomoaki ^{[1
]}

Yabuuchi, Naoaki ^{[1
]}

Shimomura, Keiji ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan

来源：

ELECTROCHEMISTRY | 2011年 / 79卷 / 01期

关键词：

Silicon; Polyacrylate; Binder; Lithium-ion Battery; RECHARGEABLE BATTERIES; NEGATIVE ELECTRODES; ANODE MATERIAL; SI; LI; CAPACITY; CARBON; ELECTROCHEMISTRY; POLYMER; FILM;

D O I：

10.5796/electrochemistry.79.6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Polyacrylates were applied as binder for the electrode of a particulate mixture of silicon, graphite, and Ketjen black for lithium-ion batteries. We found that poly(alkali acrylate) binder remarkably improved the electrochemical lithiation and delithiation performance of the silicon-graphite electrode compared to that of conventional binders. The polyacrylate coating on Si and graphite particles suppressed the electrode deterioration. When the electrode was prepared with 30 wt % poly(sodium acrylate) binder, the higher specific capacity and initial efficiency were obtained with much improved cycleability.

引用

页码：6 / 9

页数：4

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