Natural graphite enhanced the electrochemical performance of Li3V2(PO4)3 cathode material for lithium ion batteries

被引：17

作者：

Zhang, Lu-Lu ^{[1
,2
]}

Sun, Hua-Bin ^{[1
]}

Yang, Xue-Lin ^{[1
]}

Li, Ming ^{[1
]}

Li, Zhen ^{[1
]}

Ni, Shi-Bing ^{[1
]}

Tao, Hua-Chao ^{[1
]}

机构：

[1] China Three Gorges Univ, Hubei Prov Collaborat Innovat Ctr New Energy Micr, Coll Mat & Chem Engn, 8 Daxue Rd, Yichang 443002, Hubei, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2016年 / 20卷 / 02期

基金：

美国国家科学基金会;

关键词：

Lithium vanadium phosphate; Natural graphite; Cathode material; Lithium ion battery; SOL-GEL METHOD; COMPOSITES; CHALLENGES; PHASE;

D O I：

10.1007/s10008-015-3044-z

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Natural graphite treated by mechanical activation can be directly applied to the preparation of Li3V2(PO4)(3). The carbon-coated Li3V2(PO4)(3) with monoclinic structure was successfully synthesized by using natural graphite as carbon source and reducing agent. The amount of activated graphite is optimized by X-ray diffraction, scanning electron microscope, transmission electron microscope, Raman spectrum, galvanostatic charge/discharge measurements, cyclic voltammetry, and electrochemical impedance spectroscopy tests. Our results show that Li3V2(PO4)(3) (LVP)-10G exhibits the highest initial discharge capacity of 189 mAh g(-1) at 0.1 C and 162.9 mAh g(-1) at 1 C in the voltage range of 3.0-4.8 V. Therefore, natural graphite is a promising carbon source for LVP cathode material in lithium ion batteries.

引用

页码：311 / 318

页数：8

共 35 条

[1] Building better batteries [J].