کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1294160 973594 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decreasing the initial irreversible capacity loss of graphite negative electrode by alkali-addition
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Decreasing the initial irreversible capacity loss of graphite negative electrode by alkali-addition
چکیده انگلیسی

The effect of alkali function group contained in electrode binder was investigated. Carboxy methyl cellulose (CMC) improved the initial irreversible capacity loss in graphite negative electrode. Lithium acetate also improved the initial cycle efficiency. On the other hand, ethyl cellulose (EC) and hydroxyl propyl methyl cellulose (HPMC), which do not have a carboxylic group, did not decrease the reductive electrolyte decomposition. After charge and discharge cycle, the surface film composition on the electrode with CMC was less than on the electrode without CMC. This suggests that a carboxylic group in the binder acted as a catalyst and promoted the solid electrolyte interphase (SEI) formation which prevents the excess electrolyte decomposition on the graphite electrode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 192, Issue 2, 15 July 2009, Pages 703–707
نویسندگان
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