Reversible Zn-quinone battery with harvesting electrochemical neutralization energy

被引：22

作者：

Cai, Pingwei ^{[1
,2
]}

Wang, Genxiang ^{[1
,2
]}

Chen, Kai ^{[1
]}

Wen, Zhenhai ^{[1
]}

机构：

[1] Chinese Acad Sci, CAS Key Lab Design & Assembly Funct Nanostruct, Fujian Prov Key Lab Nanomat, Fujian Inst Res Struct Matter, Fuzhou 350002, Fujian, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2019年 / 428卷

基金：

中国国家自然科学基金;

关键词：

Zn-quinone battery; Asymmetric alkali-acid electrolyte; Rechargeable; El ectrochemical neutralization energy; BIFUNCTIONAL CATHODE; ALLOY NANOPARTICLES; HIGH-EFFICIENCY; POROUS CARBON; AIR; CATALYSTS; STORAGE; ROBUST; ELECTROCATALYSTS; ELECTRODES;

D O I：

10.1016/j.jpowsour.2019.04.103

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：

Zn-quinone batteries, with the merit of high reversibility, show great potential in the energy storage and conversion system, but the low working voltage and power density limit their application. We here report a rechargeable asymmetric alkali-acid electrolyte Zn-quinone battery (AAAZQB, 3AZQB) with the Zn anode in alkali and the highly reversible quinone cathode in acid. The elaborate asymmetric alkali-acid electrolyte design, enables the redox of Zn and quinone can act in their optimal conditions, the electrochemical neutralization energy can be harvested simultaneously. As a result, the 3AZQB delivers an open circuit voltage of 1.95 V, a peak power density up to 315 mW cm(-2) and a highly strong stability with a reversible charging/discharging voltage gap of 200 mV, which are much better than those of Zn-air batteries and Zn-quinone batteries reported before.

引用

页码：37 / 43

页数：7

共 51 条

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