Vanadyl ethylene glycolate: A novel organic-inorganic electrode material for rechargeable aqueous aluminum-ion battery

被引：12

作者：

Nandi, Sunny ^{[1
,3
]}

Yan, Yichen ^{[2
]}

Yuan, Xintong ^{[3
]}

Wang, Chongzhen ^{[3
]}

He, Ximin ^{[2
]}

Li, Yuzhang ^{[3
]}

Das, Shyamal K. ^{[1
]}

机构：

[1] Tezpur Univ, Dept Phys, Assam 784028, India

[2] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA

来源：

SOLID STATE IONICS | 2023年 / 389卷

关键词：

Aluminum -ion battery; Vanadyl ethylene glycolate; Aqueous electrolyte; CATHODE MATERIALS; ALPHA-MOO3;

D O I：

10.1016/j.ssi.2022.116085

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：

This report illustrates an investigation on the electrochemistry of vanadyl ethylene glycolate (VEG) for rechargeable aqueous aluminum-ion battery for the first time. Vanadyl ethylene glycolate nanorods were syn-thesized by in-situ deposition on a carbon cloth current collector and, thereby, it makes a binder free electrode. It is found that the binder free VEG could significantly improve the electrochemical stability in comparison to pristine VEG with binder due to intimate contact of the electrode material with the current collector which resulted in reduced charge transfer resistance. The binder free electrode could deliver a stable discharge capacity of 77 mAhg- 1 over 600 cycles at a high current density of 2 Ag-1, whereas pristine VEG shows negligible specific capacity. The Al3+ ion storage mechanism is also demonstrated utilizing ex-situ XPS, XRD and electron micro-scopy techniques.

引用

页数：7

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