SODIUM INSERTION IN VANADIUM-OXIDES

被引：75

作者：

WEST, K ^{[1
]}

ZACHAUCHRISTIANSEN, B ^{[1
]}

JACOBSEN, T ^{[1
]}

SKAARUP, S ^{[1
]}

机构：

[1] TECH UNIV DENMARK,FYS LAB 3,DK-2800 LYNGBY,DENMARK

来源：

SOLID STATE IONICS | 1988年 / 28卷

关键词：

Cathodes--Performance; -; Electrodes; Electrochemical--Materials - Sodium Compounds--Phase Transitions - Vanadium Compounds--Doping;

D O I：

10.1016/0167-2738(88)90343-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sodium insertion in three vanadium oxides is studied with regard to their use as cathode materials in solid-state sodium batteries. One channel structure (β-NaxV2O5) and two layered structures (Na1+xV3O8 and α-V2O5) are investigated. The stoichiometric energy densities calculated from the first discharges were 245, 340, and 430 Wh/kg, respectively. Both Na1+xV3O8 and β-NaxV2O5 degraded gradually during cycling. The structure of α-V2O5 changes after the first discharge, but the new phase exhibits excellent capacity retention upon cycling.

引用

页码：1128 / 1131

页数：4

共 20 条

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