Identification of metal–air batteries from water energy harvesters

Xiaote Xu; Xiaodan Yang; Zhuomin Zhang; Ying Hong; Shiyuan Liu; Yao Shan; Zehua Peng; Siyuan Wang; Xi Yao; Zhengbao Yang

doi:10.1002/dro2.80

Author(s)

Related Research Unit(s)

Detail(s)

Original language	English
Article number	e80
Journal / Publication	Droplet
Volume	2
Issue number	4
Online published	8 Aug 2023
Publication status	Published - Oct 2023

Link(s)

DOI	DOI https://doi.org/10.1002/dro2.80 Final Published version
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Attachment(s)	Documents 165114939.pdf Final Published version, 3.57 MB, PDF Publisher's Copyright Statement This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85176090515&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(74a4b748-34b5-4e1d-8906-578907765adb).html

Abstract

Capillary-enabled water energy harvesters (WEHs) are capable of generating direct-current electricity continuously. However, active-metal electrodes can introduce metal–air batteries in these WEHs. Given the nearly identical device structures and output characteristics of these two technologies, it is essential to distinguish between them. Herein, we present a systematic study of the water-activated metal–air battery (WMB) through theoretical analyses and experimental verifications. We conclude the general formation rules of the WMB from a material and device-structure perspective. Furthermore, we provide a comparative summary of various WEHs and WMBs for easy identification. We aim to improve the comprehension of metal–air batteries in the field of WEHs and assist in distinguishing between these technologies. © 2023 The Authors. Droplet published by Jilin University and John Wiley & Sons Australia, Ltd.