The critical effect of water content in the electrolyte on the reversible electrochemical performance of Zn-VPO4F cells

被引：24

作者：

Asl, Hooman Yaghoobnejad ^{[1
]}

Sharma, Shyam ^{[1
]}

Manthiram, Arumugam ^{[1
]}

机构：

[1] Univ Texas Austin, Texas Mat Inst, Mat Sci & Engn Program, Austin, TX 78712 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2020年 / 8卷 / 17期

基金：

美国国家科学基金会;

关键词：

CATHODE MATERIALS; ION; INSERTION; LIVPO4F; CHALLENGES; BATTERIES; TRANSPORT; OXIDE;

D O I：

10.1039/d0ta01622e

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：

The electrochemistry of the Zn-VPO4F system has been studied for the first time in both wet non-aqueous and aqueous zinc-ion electrolytes. It is shown that H+ ions present in the electrolyte insert into the cathode host in preference to sluggish Zn2+ ion insertion. Furthermore, it is demonstrated that while H2O as a source of H+ is essential for proper cell operation, an aqueous electrolyte is detrimental to cathode stability due to extensive dissolution.

引用

页码：8262 / 8267

页数：6

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