Enhanced electrochemical performance of Li3V2(PO4)3 microspheres assembled with nanoparticles embedded in a carbon matrix

被引：9

作者：

Chen, Hui ^{[1
]}

Wang, Zong-Kai ^{[3
]}

Li, Guo-Dong ^{[2
]}

Guo, Fei-Fan ^{[2
]}

Fan, Mei-Hong ^{[2
]}

Wu, Xue-Yan ^{[4
]}

Cao, Xi-Chuan ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221000, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

[3] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

[4] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 40期

关键词：

LITHIUM-ION BATTERIES; CATHODE MATERIALS; HYDROTHERMAL SYNTHESIS; HIGH-CAPACITY; ANODE MATERIALS; COMPOSITES; NANOCOMPOSITE; CHALLENGES; LIFE;

D O I：

10.1039/c5ra01992c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on uniform Li3V2(PO4)(3) microspheres with a size distribution of 1-3 mu m assembled with nanoparticles embedded in a carbon matrix. LVP particles have a size of about 50-100 nm and carbon accounts for about 6% in total mass for the one with the best electrochemical performance. An initial capacity of 121 mA h g(-1) or 101 mA h g(-1) was achieved when cycled at 1 C or 10 C at room temperature with an admissible capacity fading of 8% after 100 cycles. The high rate capability and cycling stability may attribute to the unique microsize, electron conductive continuous carbon matrix and stable 3D skeleton of Li3V2(PO4)(3).

引用

页码：31410 / 31414

页数：5

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