期刊
SCRIPTA MATERIALIA
卷 181, 期 -, 页码 92-96出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.02.023
关键词
Na3V2(PO4)(2)F-3; Nanostructured material; Cathode material; Sodium ion battery; Microwave-assisted synthesis
类别
资金
- National Natural Science Foundation of China [21872098, 61801314, 61731013]
- Sichuan Science and Technology Program [2019YFH0078]
- Fundamental Research Funds for the Central Universities of China [YJ201703]
Na3V2(PO4)(2)F-3 is a prospective cathode material for sodium ion batteries (SIBs) because of its high theoretical capacity. Nevertheless, its low electronic conductivity leads to poor cycling and rate performance, hindering its practical application. In this work, ultrafine-Na3V2(PO4)(2)F-3 nanocrystals less than 20 nm embedded in porous carbon nanospheres are fabricated via a microwave-assisted glycerol-mediated hydrothermal process followed by annealing. Microwave irradiation is shown to be critical for the formation of homogenous ultrafine nanostructure. The product exhibits a charge/discharge capacity of 106 mAh g(-1) at 0.5 C after 100 cycles with a retention of approximate 100% as cathode material for SIBs. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. 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