Structural and electrochemical characterization of Li2O-V2O5-Fe2O3 amorphous cathode material for lithium-ion batteries

被引：5

作者：

Wang, Hao ^{[1
]}

Li, Junfeng ^{[1
]}

Yin, Yue ^{[1
]}

Wang, Li ^{[1
]}

Zhang, Peicong ^{[1
]}

Lai, Xuefei ^{[2
]}

Yue, Bo ^{[3
]}

Li, Yanjun ^{[3
]}

Hu, Xiaoyu ^{[3
]}

He, Donglin ^{[3
]}

机构：

[1] Chengdu Univ Technol, Coll Mat Chem & Chem Engn, Chengdu 610059, Sichuan, Peoples R China

[2] Sichuan Univ, Coll Chem Engn, Chengdu 610064, Sichuan, Peoples R China

[3] Sichuan New Li Idea Energy Sci & Technol Co Ltd, Chengdu 610101, Sichuan, Peoples R China

来源：

FUNCTIONAL MATERIALS LETTERS | 2022年 / 15卷 / 01期

关键词：

Amorphous materials; lithium-ion battery; cathode material; electrochemical performance; ELECTRICAL-CONDUCTIVITY; ELECTRODE MATERIALS; GLASS;

D O I：

10.1142/S1793604722500035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to explore novel vanadium-based amorphous materials, a series of Li2O-V2O5-Fe2O3 amorphous materials were prepared with the low-cost melting-quenching method in this report. As the main framework of amorphous materials, VO4 is connected with FeO4 and FeO6 to form a disordered network structure. 20Li(2)O-60V(2)O(5)-20Fe(2)O(3) amorphous material had a stable structure and Li-ion migration channel. In the electrochemical performance test, the second cycle discharge capacity was 150.7 mAh/g at a current density of 100 mA/g and the capacity retention rate was still 80% after 100 cycles because the redox reaction between vanadium and iron ions promoted the electrochemical performance. Li2O-V2O5-Fe2O3 amorphous materials are promising lithium-ion battery cathode materials.

引用

页数：4

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