کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460217 | 1516193 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimized hydrothermal synthesis and electrochemical performance of LiMnPO4/C cathode materials using high specific area spherical structure Li3PO4
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optimized hydrothermal synthesis and electrochemical performance of LiMnPO4/C cathode materials using high specific area spherical structure Li3PO4 Optimized hydrothermal synthesis and electrochemical performance of LiMnPO4/C cathode materials using high specific area spherical structure Li3PO4](/preview/png/5460217.png)
چکیده انگلیسی
Olivine structure LiMnPO4/C cathode is synthesized by a hydrothermal method with high specific surface area Li3PO4 precursor in PEG400-H2O mixed solution system. The synthetic conditions are systematically optimized and statistical analysis using orthogonal experiments. The physical and electrochemical properties of Li3PO4 and LiMnPO4/C samples prepared under the optimized conditions are investigated in detail. The XRD and SEM results show that Li3PO4 powders are pure phase with uniformly hollow spherical morphology. The Nitrogen adsorption-desorption isotherm exhibits the specific surface area of Li3PO4 powders are 79.19Â m2/g. LiMnPO4 reveals a well ordered olivine structure and possess small and unagglomerated particles, which generates from the Li3PO4 precursor structure. The electrochemical measurements show that pure LiMnPO4/C sample prepared under the optimal conditions delivers a maximum discharge capacity of 121.3 mAh/g at a 0.1Â C rate. After 100 cycles, the discharge capacity decreases to 115.1 mAh/g with the capacity retention of 94.89%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 701, 15 April 2017, Pages 433-438
Journal: Journal of Alloys and Compounds - Volume 701, 15 April 2017, Pages 433-438
نویسندگان
Jun Zhang, Shaohua Luo, Qing Wang, Zhiyuan Wang, Aimin Hao, Yahui Zhang, Yanguo Liu, Qian Xu, Yuchun Zhai,