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
收藏
页码：6 / 9
页数：4
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