Integrated Charge Transfer in Li3V2(PO4)3/C for High-Power Li-Ion Batteries

被引：4
作者：
Zhang, Xianghua [1 ]
Chen, Dong [1 ]
Liu, Yipei [1 ]
Han, Weiwei [1 ]
Chu, Huaqiang [1 ]
Rui, Xianhong [1 ,2 ]
机构：
[1] Anhui Univ Technol, Sch Energy & Environm, Maanshan 243002, Anhui, Peoples R China
[2] Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2017年 / 12卷 / 11期
基金：
美国国家科学基金会;
关键词：
lithium ion battery; lithium vanadium phosphate; 3D carbon network; nanocomposite; high-power; CARBON-THERMAL REDUCTION; CATHODE MATERIALS; LONG-LIFE; PERFORMANCE; NANOCOMPOSITE; COMPOSITE;
D O I：
10.20964/2017.11.26
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
To improve the charge transfer kinetics in monoclinic Li3V2(PO4)(3) (LVP), LVP nanoparticles with sizes ranging from 100 to 200 nm that were completely encapsulated in amorphous carbon networks (LVP/C) are synthesized by a facile sol-gel method using two carbon sources of citric acid and span80 (C24H44O6). Span80, possessing strongly hydrophilic functional groups, is essential for the formation of the three-dimensional conductive carbon matrix. When applied as the cathode for Li-ion batteries, LVP/C nanocomposite displays an excellent cycling stability and rate capability, e.g., delivering the capacity of 85 mAh g(-1) at the high rate of 30 C.
引用
收藏
页码：9925 / 9932
页数：8
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