کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760279 | 1498046 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance of LiNiCoO2 materials for advanced lithium-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Performance of LiNiCoO2 materials for advanced lithium-ion batteries Performance of LiNiCoO2 materials for advanced lithium-ion batteries](/preview/png/9760279.png)
چکیده انگلیسی
The mechanism of the increasing of resistance of lithium-ion batteries using Li(Ni,Co)O2 based material as positive electrode materials was investigated. The increase in resistance of cells with Li(Ni,Co)O2 material and artificial graphite was observed in cycling test at 60 °C. It was found that the increasing of resistance was mainly attributed to that at positive electrode by 'reconstructed method'. In order to examine the mechanism of the increasing of resistance of positive electrode, the morphological changes of positive particles and local structure of Li(Ni,Co)O2 material were investigated. The clearance and crack were observed at grain boundary inside particle after cycle by FIB (focused ion beam) technique. The change of local structure around Co-atom was observed during charge-discharge process at 60 °C by in situ XAFS (X-ray absorption fine structure spectroscopic) analysis method. It was considered that the morphological and local structural changes of positive material cause the increasing of resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 39-44
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 39-44
نویسندگان
Yuichi Itou, Yoshio Ukyo,