کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760339 | 1498046 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of poly(N-methylpyrrole) modified with pentathiepin rings and its application to positive active material for lithium secondary
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of poly(N-methylpyrrole) modified with pentathiepin rings and its application to positive active material for lithium secondary Preparation of poly(N-methylpyrrole) modified with pentathiepin rings and its application to positive active material for lithium secondary](/preview/png/9760339.png)
چکیده انگلیسی
Lithium secondary batteries with high energy density are key devices for portable electrical equipments. The specific capacity of metal oxide-based positive active materials is considerably lower than that of lithium metal. Organosulfur compounds, such as disulfide compounds are useful as a positive active material for lithium secondary cells. We prepared modified poly(N-methylpyrrole) (PMPy) with pentathiepin rings (S-PMPy) from PMPy and disulfur dichloride at room temperature. The S-PMPy electrode showed electrochemical responses in the organic electrolyte solution (mixture of propylene carbonate (PC) and 1,2-dimethoxyethane (DME) (1:1, v/v) containing 1 mol dmâ3 LiClO4). The maximum capacity of the test lithium secondary cell with the S-PMPy electrode was 14.8 A h kgâ1 (per kilogram of S-PMPy) and the average capacity was 11.5 A h kgâ1 (10 cycles) under the constant charge-discharge current condition at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 345-348
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 345-348
نویسندگان
Hiromori Tsutsumi, Hiroki Higashiyama, Kenjiro Onimura, Tsutomu Oishi,