960化工网
Enhanced electrochemical performance of Li3V2(PO4)3 microspheres assembled with nanoparticles embedded in a carbon matrix†
Hui Chen,Zong-Kai Wang,Guo-Dong Li,Fei-Fan Guo,Mei-Hong Fan,Xue-Yan Wu,Xi-Chuan Cao
RSC Advances Pub Date : 03/27/2015 00:00:00 , DOI:10.1039/C5RA01992C
Abstract

We report on uniform Li3V2(PO4)3 microspheres with a size distribution of 1–3 μm 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.

Graphical abstract: Enhanced electrochemical performance of Li3V2(PO4)3 microspheres assembled with nanoparticles embedded in a carbon matrix
平台客服
平台客服
平台在线客服