کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760337 | 1498046 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stable-cycle and high-capacity conductive sulfur-containing cathode materials for rechargeable lithium batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Stable-cycle and high-capacity conductive sulfur-containing cathode materials for rechargeable lithium batteries Stable-cycle and high-capacity conductive sulfur-containing cathode materials for rechargeable lithium batteries](/preview/png/9760337.png)
چکیده انگلیسی
Cycle characteristics of conductive sulfur-containing materials (CSMs) synthesized by heating the mixture of polyacrylonitrile and elemental sulfur at a wider temperature region from 250 to 800 °C are presented. The cyclability is improved remarkably for CSMs obtained above 400 °C. A stable capacity of CSM prepared at 450 °C maintains about 470 mAh gâ1 and the capacity retention remains ca. 90% after near 380 cycles. Fourier-transform infrared spectroscopy (FTIR) and Raman characterizations disclose that the fundamental chemical structure of CSMs is composed of dehydropyridine type matrix with SS bond in side-chain. Such unique structure and better electrical conductivity ensure the excellent cycle performance of the prepared CSMs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 335-339
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 335-339
نویسندگان
Xianguo Yu, Jingying Xie, Ying Li, Haijiang Huang, Chunyan Lai, Ke Wang,