FeSO4 as a Novel Li-Ion Battery Cathode

被引：0

作者：

杨家超 ^{[1
]}

邹剑 ^{[1
]}

罗春 ^{[1
]}

冉淇文 ^{[1
]}

王鑫 ^{[1
]}

陈鹏宇 ^{[1
]}

胡川 ^{[1
]}

牛晓滨 ^{[1
]}

姬海宁 ^{[1
]}

王丽平 ^{[1
,2
]}

机构：

[1] School of Materials and Energy, University of Electronic Science and Technology of China

[2] Tianmu Lake Institute of Advanced Energy Storage Technologies

来源：

Chinese Physics Letters | 2021年 / 38卷 / 06期

基金：

中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TQ138.11 []; TM912 [蓄电池];

学科分类号：

摘要：

FeSOhas the characteristics of low cost and theoretical high energy density(799 W·h·kgwith a two-electron reaction), which can meet the demand for next-generation lithium-ion batteries. Herein, FeSOas a novel highperformance conversion-reaction type cathode is investigated. We use dopamine as a carbon coating source to increase its electronic conductivity. FeSO@C demonstrates a high reversible specific capacity(512 mA·h·g)and a superior cycling performance(482 mA·h·gafter 250 cycles). In addition, we further study its reaction mechanism. The FeSOis converted to Fe and LiSOduring lithium ion insertion and the Fe—LiSOgrain boundaries further store additional lithium ions. Our findings are valuable in exploring other new conversion-type lithium ion battery cathodes.

引用

页码：117 / 123

页数：7

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