Magnesium-Ion Cathode Materials based on the Barite Structure

被引：1

作者：

Hawthorne, K. L. ^{[1
,2
]}

Liao, C. ^{[1
,2
]}

Lau, K. -C. ^{[1
,2
]}

Proffit, D. L. ^{[1
,2
]}

Vaughey, J. T. ^{[1
,2
]}

机构：

[1] Argonne Natl Lab, Dept Chem Sci & Engn, Lemont, IL 60439 USA

[2] Argonne Natl Lab, Joint Ctr Energy Storage Res, Lemont, IL 60439 USA

来源：

SELECTED PROCEEDINGS FROM THE 233RD ECS MEETING | 2018年 / 85卷 / 13期

关键词：

CRYSTAL-STRUCTURE; INSERTION; ANODES; INTERCALATION;

D O I：

10.1149/08513.0193ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The barite structure (mineral: BaSO4) is a common structure type for alkaline earth metals and is known to exist with many different electrochemically active cations. In this study we have evaluated the electrochemical activity of the barite-type material BaCrO4 as a charged cathode in a standard Mg-ion cell configuration. Electrochemical evaluation of the material, prepared in two different ways, indicated a reversible insertion plateau around 1.0 V (vs Mg/Mg+2) corresponding to the approximate composition Mg-0.1[BaCrO4]. The low inherent electronic conductivity of these insoluble but molecular materials is thought to be the underlying cause of the poor electrochemical performance.

引用

页码：193 / 197

页数：5

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