کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568419 | 973425 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison and improvement of the high rate performance of different types of LiMn2O4 spinels
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparison and improvement of the high rate performance of different types of LiMn2O4 spinels Comparison and improvement of the high rate performance of different types of LiMn2O4 spinels](/preview/png/10568419.png)
چکیده انگلیسی
The rate capacity especially the high rate discharge performance is another important aspect for the application of Mn-based spinel cathodes for EV/HEV power sources besides the cycling performance that is now intensively investigated. In this paper, spinel materials differing in chemical composition and thermal processing history were investigated by discharging at constant current rates from C/10 to 4 C at ambient temperature. It was found that the high-rate discharge capability of Mn-based spinels is very excellent if prepared at temperatures below 850 °C, no matter cation doping or not. In contrast, spinels synthesized over 950 °C showed much poorer high rate performance, and some kinds of impurities were proposed to be responsible for the deteriorated behavior. Annealing at lower temperatures was found to be useful for the significant improvement of the high rate discharge capability of Mn spinels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 141, Issue 1, 16 February 2005, Pages 116-121
Journal: Journal of Power Sources - Volume 141, Issue 1, 16 February 2005, Pages 116-121
نویسندگان
Bohua Deng, Hiroyoshi Nakamura, Masaki Yoshio,