Dual ions co-doped V2O5 as a long-life and stable cathode for aqueous zinc-ion batteries

被引：1

作者：

Chen, Jianlin ^{[1
]}

Shen, Mengyuan ^{[1
]}

Song, Siyao ^{[1
]}

Li, Yunpeng ^{[1
]}

Hou, Wenyan ^{[1
]}

Wang, Anli ^{[1
]}

Zhang, Jiayu ^{[1
]}

Zhang, Liang ^{[1
]}

Su, Yining ^{[1
]}

Feng, Yuanyuan ^{[1
]}

Shen, Fei ^{[1
]}

Han, Xiaogang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China

来源：

MATERIALS LETTERS | 2025年 / 387卷

关键词：

Aqueous zinc-ion batteries; Vanadium pentoxide; Multiple ion co-insertion; Long-cycle stability; High-rate capability; VANADIUM PENTOXIDE; PERFORMANCE; STORAGE;

D O I：

10.1016/j.matlet.2025.138262

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Layered vanadium pentoxide cathode materials with high theoretical specific capacity and open crystal structure are promising cathodes for aqueous zinc ion batteries, but their structural stability and capacity need to be further optimized. In this work, a dual ions co-doped vanadium pentoxide cathode (ZMVO) has been designed to modify its crystal structure. Sufficient Zn2+ ensure rapid storage and release of Zn2+ during cycling and the preinserted Mg2+ serve as a pillar to expand the layer spacing. Based on the robust structure, ZMVO cathode achieves an outstanding cyclic stability with a capacity retention of 76.1 % after 6000 cycles at a current density of 10 A g- 1.

引用

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