An Investigation of the Fe-Mn-Si System for Li-Ion Battery Negative Electrodes

被引：17

作者：

Cao, Yidan ^{[1
,2
]}

Scott, Benjamin ^{[2
]}

Dunlap, R. A. ^{[1
,3
,4
]}

Wang, Jun ^{[2
]}

Obrovac, M. N. ^{[1
,2
,3
]}

机构：

[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada

[2] Dalhousie Univ, Dept Chem, Halifax, NS B3H 4R2, Canada

[3] Dalhousie Univ, Clean Technol Res Inst, Halifax, NS B3H 4R2, Canada

[4] Dalhousie Univ, Coll Sustainabil, Halifax, NS B3H 4R2, Canada

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2019年 / 166卷 / 02期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

X-RAY-DIFFRACTION; COMBINATORIAL INVESTIGATIONS; ELECTROCHEMICAL REACTION; COMPOSITE ANODES; BINARY-SYSTEM; LITHIUM; INSERTION; NI;

D O I：

10.1149/2.1111816jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Fe-Mn-Si alloys prepared by ball milling were investigated as negative electrodes for Li-ion batteries. X-ray diffraction and room temperature Fe-57 Mossbauer measurements were used to characterize alloy structure, which revealed the formation of ternary (Fe, Mn,) Si-11(19) solid solutions. During cycling in Li cells, the formation of crystalline Li15Si4 was effectively suppressed by inactive transition metal silicide phases, resulting in good cycling performance. In addition, Fe was found to be superior to Mn in avoiding excessive side reactions with electrolyte during cycling. (C) The Author(s) 2019. Published by ECS.

引用

页码：A21 / A26

页数：6

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