期刊
SOLID STATE SCIENCES
卷 15, 期 -, 页码 1-6出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2012.09.012
关键词
Na3V2(PO4)(2)F-3; Cathode; Carbothermal reduction; NASICON-type
资金
- Qihang program of innovation and entrepreneurship [2011CY03, 2009CX46]
- Caitian xuanzhu program of innovation and entrepreneurship of Central South University [12CT10]
Na3V2(PO4)(2)F-3, which could be used as cathode in Na-ion or Li-ion rechargeable batteries, was synthesized by carbothermal reduction (CTR) method at 700 degrees C with coralline structure by SEM analysis. The Na3V2(PO4)(2)F-3 cathode in Li-ion battery displayed an appreciable capacity of 188 mAh/g with a discharge plateau at 3.7 V under close-to-equilibrium galvanostatic conditions illuminating the feasible extraction of three Na ions per unit, and 130 mAh/g with retention of 96.8% after 37 cycles at 0.1 C. The NASICON-type structure could produce a large diffusion coefficient due to the three-dimensional framework, but cause a low conductivity and OCV around 3 V. The cathode could reach 188 mAh/g at 0.1 C, with a more 20 mAh/g at 3.7 V after washing by distilled water. (C) 2012 Elsevier Masson SAS. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据