Influence of microwave heating on the structure and electrochemical property of NH4V3O8 cathode material for lithium ion batteries

被引：9

作者：

Cao Shanshan ^{[1
]}

Huang Jianfeng ^{[1
]}

Xu Zhanwei ^{[1
]}

Li Jiayin ^{[1
]}

Ouyang Haibo ^{[1
]}

Cao Liyun ^{[1
]}

Zheng Lei ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Powders; chemical preparation; Impedance; Batteries; Microwave; HYDROTHERMAL SYNTHESIS; PERFORMANCE; TRANSPORT; NANORODS; NH4V4O10; BEHAVIOR; LIV3O8;

D O I：

10.1016/j.ceramint.2015.01.119

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

NH4V3O8 nanosheets and flakes have been prepared successfully by co-precipitation method through microwave heating (MH) and conventional heating (CH), respectively. The effect of MH on the structure and electrochemical performance of NH4V3O8 as cathode material for lithium ion battery is investigated. In comparison with NH4V3O8 flakes prepared through CH, NH4V3O8 nanosheets prepared with MH possess much smaller thickness because of the uniform and rapid heating of microwave, and deliver higher discharge capacity, better cycling stability and better rate capability. The NH4V3O8 nanosheets exhibit a maximum discharge capacity of 292 mA h g(-1) at 15 mA g(-1) and maintain a capacity of 267 mA h g(-1) after 30 cycles. Results show that microwave heating is favorable to improve the electrochemical performance of NH4V3O8 cathode material. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：6747 / 6752

页数：6

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