Prototype System of Rocking-Chair Zn-Ion Battery Adopting Zinc Chevrel Phase Anode and Rhombohedral Zinc Hexacyanoferrate Cathode

被引：70

作者：

Chae, Munseok S. ^{[1
]}

Hong, Seung-Tae ^{[1
]}

机构：

[1] DGIST, Dept Energy Sci & Engn, Daegu 42988, South Korea

来源：

BATTERIES-BASEL | 2019年 / 5卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

rocking-chair battery; Prussian blue analogue; zinc hexacyanoferrate; Chevrel phase; zinc-ion battery; multivalent-ion battery; CRYSTAL-STRUCTURE; INTERCALATION; CYCLE; PERFORMANCE; CHEMISTRY; LIFE;

D O I：

10.3390/batteries5010003

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Zinc-ion batteries (ZIBs) have received attention as one type of multivalent-ion batteries due to their potential applications in large-scale energy storage systems. Here we report a prototype of rocking-chair ZIB system employing Zn2Mo6S8 (zinc Chevrel phase) as an anode operating at 0.35 V, and K-0.02(H2O)(0.22)Zn-2.94[Fe(CN)(6)](2) (rhombohedral zinc Prussian-blue analogue) as a cathode operating at 1.75 V (vs. Zn/Zn2+) in ZnSO4 aqueous electrolyte. This type of cell has a benefit due to its intrinsic zinc-dendrite-free nature. The cell is designed to be positive-limited with a capacity of 62.3 mAh g(-1). The full-cell shows a reversible cycle with an average discharge cell voltage of similar to 1.40 V, demonstrating a successful rocking-chair zinc-ion battery system.

引用

页数：13