期刊
JOURNAL OF POWER SOURCES
卷 220, 期 -, 页码 180-184出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2012.08.007
关键词
Lithium battery; Silicon; Electrode; Liquid electrolyte; Binder
资金
- CNRS
- Universite de Nantes
- Agence Nationale de la Recherche (ANR) of France
- Natural Science and Engineering Research Council (NSERC) of Canada
The electrolyte degradation process on nano Si-based negative electrodes prepared with a carboxymethylcellulose (CMC) binder is studied by comparing the irreversible loss to ex-situ measurements of the weight and the thickness of the electrode along cycling. The electrode thickness and mass increase in close relationship to the irreversible loss increase, due to the continuous accumulation of insoluble electrolyte degradation products in the Si electrode. The use of a pH 3 buffer solution during the slurry electrode preparation, and the presence of fluoroethylene carbonate (FEC) + vinylidene carbonate (VC) results in much less electrolyte decomposition. The double role of the CMC binder with respect to the mechanical and chemical stability of the composite electrode is highlighted. (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据