Si-alloy negative electrodes for Li-ion batteries

被引:78
作者
Obrovac, M. N. [1 ,2 ]
机构
[1] Dalhousie Univ, Dept Chem, Halifax, NS B3H 4R2, Canada
[2] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
HIGH-PERFORMANCE ANODE; SILICON ANODES; HIGH-CAPACITY; COMBINATORIAL INVESTIGATIONS; ELECTROCHEMICAL-BEHAVIOR; COMPOSITE ELECTRODES; POLYACRYLIC-ACID; PHENOLIC RESIN; NANO-SILICON; BINDER;
D O I
10.1016/j.coelec.2018.02.002
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The use of Si-alloys as negative electrode materials in Li-ion cells can increase their energy density by as much as 20%, compared to conventional graphite electrodes. However, several technical challenges related with the massive volume expansion associated with Si-alloy lithiation have impeded their implementation. A number of advances in recent years have occurred in the understanding of these challenges and in means of overcoming them through new materials, electrolyte additives, binders and electrode formulations. Here, the current understanding of these challenges and the latest advances in the field are reviewed.
引用
收藏
页码:8 / 17
页数:10
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