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Aqueous OH−/H+ Dual‐Ion Zn‐Based Batteries.

Authors :
Cai, Pingwei
Chen, Kai
Lu, Zhiwen
Mondal, Ritwik
Thotiyl, Musthafa Ottakam
Wen, Zhenhai
Source :
ChemSusChem; 2/20/2023, Vol. 16 Issue 4, p1-16, 16p
Publication Year :
2023

Abstract

Aqueous Zn‐based batteries hold multiple advantages of eco‐friendliness, easy accessibility, high safety, easy fabrication, and fast kinetics, while their widespread applications have been greatly limited by the relatively narrow thermodynamically stable potential windows (i. e. 1.23 V) of water and the mismatched pH conditions between cathode and anode, which presents challenges regarding how to maximize the output voltage and the energy density. Recently, aqueous OH−/H+ dual‐ion Zn‐based batteries (OH−/H+‐DIZBs), where the Zn anode reacts with hydroxide ions (OH−) in alkaline electrolyte while hydrogen ions (H+) are involved in the cathode reaction in the acidic electrolyte, have been reported to be capable of broadening the working voltage and improving the energy density, which offers practical feasibility toward overcoming the above limitations. This Review thus takes this chance to investigate the recent progress on aqueous OH−/H+‐DIZBs. First, the concept and the history of such OH−/H+‐DIZBs are introduced, and then special emphasis is put on the working mechanisms, the progress of the development of new batteries, and how the electrolytes improve their performance. Finally, the challenges and opportunities in this field are discussed. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18645631
Volume :
16
Issue :
4
Database :
Complementary Index
Journal :
ChemSusChem
Publication Type :
Academic Journal
Accession number :
162013588
Full Text :
https://doi.org/10.1002/cssc.202201034