Combinatorial investigations of Si-M (M = Cr plus Ni, Fe, Mn) thin film negative electrode materials

被引：149

作者：

Fleischauer, MD ^{[1
]}

Topple, JM

Dahna, JR

机构：

[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

[2] Queens Univ, Dept Engn Phys, Kingston, ON K7L 3N6, Canada

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 02期

关键词：

D O I：

10.1149/1.1850395

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thin film libraries of sputtered SixM1-x (M = Cr + Ni, Fe, Mn) have been investigated for use as negative electrode materials in Li-ion rechargeable batteries. Results from over 200 compositions are reported here. The observed capacity decreases as transition metal content increases, approaching zero around 50 atom % Si, and can be approximated assuming active Si in an inactive SiM (M = Cr, Fe, Mn or Ni) matrix. Plots of differential capacity vs. potential are characteristic of a-Si in an inert matrix, in agreement with X-ray diffraction results. The behavior of Si-Mn thin film libraries differs from that of Si-Fe and Si-Cr-Ni libraries for the range of 50 to 70 atom % Si. (C) 2005 The Electrochemical Society.

引用

页码：A137 / A140

页数：4

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