Polyacrylate Modifier for Graphite Anode of Lithium-Ion Batteries

被引：103

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

页码：A107 / A110

页数：4

共 28 条

[21] Improvements of dispersion homogeneity and cell performance of aqueous-processed LiCoO2 cathodes by using dispersant of PAA-NH4 [J].