Polyacrylate Modifier for Graphite Anode of Lithium-Ion Batteries

被引：100
|
作者：
Komaba, S. [1 ]
Okushi, K. [1 ]
Ozeki, T. [1 ]
Yui, H. [2 ]
Katayama, Y. [3 ]
Miura, T. [3 ]
Saito, T. [4 ]
Groult, H. [5 ]
机构：
[1] Tokyo Univ Sci, Dept Appl Chem, Tokyo 1628601, Japan
[2] Tokyo Univ Sci, Dept Chem, Tokyo 1628601, Japan
[3] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kanagawa 2238522, Japan
[4] Nissan Motor Co Ltd, Kanagawa 2378523, Japan
[5] Univ Paris 06, Lab PECSA, CNRS, UMR 7612, F-75005 Paris, France
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 05期
关键词：
polymer electrolytes; secondary cells; PROPYLENE CARBONATE; NEGATIVE ELECTRODE; NATURAL GRAPHITE; LI; PERFORMANCE; SURFACE; ENHANCEMENT; INTERFACE; ADDITIVES; ALKALI;
D O I：
10.1149/1.3086262
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 a binder of graphite electrode in a lithium-ion cell to modify the interface. Compared to a conventional binder, poly(vinylidene fluoride), the efficiency at the initial cycle was improved by poly(acrylic acid) and alkali polyacrylates in an ethylene carbonate (EC)-based electrolyte with highly reversible lithium intercalation. In a LiClO(4) propylene carbonate (PC) solution, the poly(vinylidene fluoride) electrode showed a huge irreversible capacity as is generally known. However, the polyacrylate-modified graphite demonstrated highly reversible lithium intercalation in the PC electrolyte containing no film-forming additives as well as in the EC electrolyte due to the interfacial modification with polyacrylates.
引用
收藏
页码：A107 / A110
页数：4
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