Layered VS2 Nanosheet-Based Aqueous Zn Ion Battery Cathode

被引：1147

作者：

He, Pan ^{[1
]}

Yan, Mengyu ^{[1
]}

Zhang, Guobin ^{[1
]}

Sun, Ruimin ^{[1
]}

Chen, Lineng ^{[1
]}

An, Qinyou ^{[1
]}

Mai, Liqiang ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2017年 / 7卷 / 11期

基金：

中国国家自然科学基金;

关键词：

ENERGY-STORAGE; ANODE MATERIAL; HIGH-CAPACITY; OXIDE; GRAPHENE; MICROSPHERES; ELECTRODE; LI;

D O I：

10.1002/aenm.201601920

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The VS2 nanosheets were synthesized via a facile hydrothermal reaction, which deliver a high capacity of 190.3 mA-h/g at a current density of 0.05 A/g and exhibit long-term cyclic stability as the cathode for Zn ion batteries (ZIB). Specifically, the battery's capacity retention ratio is 98.0% after 200 cycles with good rate performance. For the first time, the intercalation reaction mechanism has also been proved by ex situ XRD, ex situ TEM, ex situ XPS, and in situ Raman. The design of Zn/VS2 battery composed of a VS2 cathode, a Zn anode, and a mild ZnSO4 aqueous electrolyte may have a significant impact on large-scale energy storage due to its low cost, safety, and environmentally friendly. Additionally, the development of layered transition-metal dichalcogenides as cathodes for aqueous ZIB may bring intensive interest to further reseach studies.

引用

页数：5

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