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Surface/interface nanoengineering for Rechargeable Zn-air batteries

Abstract

Among various energy storage systems, rechargeable Zn-air battery is one of the most promising candidates for consumer electronic market and portable energy sources. For Zn-air battery, surface/interface chemistry play a key role in their performance optimization of power density, stability and rechargeable efficiency. Zn-air battery requires gas-involved ORR (oxygen reduction reaction) and OER (oxygen evolution reaction) reactions, always leading to complex reactions and sluggish kinetic process at the three-phase interface, in which rational surface/interface nanoengineering at micro and meso-level plays a decisive role. In this review, we elobrated the influence of surface/interface properties of electrocatalysts and air electrodes on the performance of rechargeable Zn-air batteries, and the latest surface/interface nanoengineering progresses from micro to meso-level are surveyed. Moreover, the surface/interface characteristic of electrocatalysts and air electrodes at triple-phase interface which are closely related to these four key parameters of electrical conductivity, reaction energy barrier, reaction surface area and mass transfer behavior also described in detail. Based on the discussion of latest achievements of surface/interface nanoengineering, some personal perspectives on future advanced development of rechargeable Zn-air batteries are presented as well.

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Article information


Submitted
08 Nov 2019
Accepted
11 Feb 2020
First published
12 Feb 2020

Energy Environ. Sci., 2020, Accepted Manuscript
Article type
Review Article

Surface/interface nanoengineering for Rechargeable Zn-air batteries

T. Zhou , N. Zhang, C. Wu and Y. Xie, Energy Environ. Sci., 2020, Accepted Manuscript , DOI: 10.1039/C9EE03634B

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