Work

Effect of cell design on the durability of secondary zinc-air batteries

Year: 2023

Type: article

Abstract: Secondary zinc-air batteries (ZAB) are promising sustainable energy storage systems, but their practical implementation has been hindered by a focus on materials, electrode/electrolyte design and formulations that do not translate into an efficient energy storage device. The prevailing cell design features an oversized zinc anode and an unbalanced electrolyte. As a result, the depth of discharge (DoD) of the zinc anode is typically low (<10%) and the durability of tests usually is limited to 500 h. This study focuses on evaluating the electrochemical impact of different cell designs for zinc-air batteries (ZABs) and highlights the critical role of positioning an electrolyte reservoir in close proximity to the zinc anode where a lifetime of up to 4000 h have been obtained. Our tests also involve high utilization of the zinc anode, ranging from 17.5% to 70.0% of the depth of discharge (DoD), equivalent to 136–546 mAh/gZn.

Source: Applied Energy

DOI: 10.1016/j.apenergy.2023.122049

Authors: Aroa R. Mainar, Elena Iruin, Idoia Urdampilleta, Hans-Jürgen Grande, J. Alberto Blázquez

Institutions: Centre for Electrochemical Technologies, University of the Basque Country

Language: English

Topic: Aqueous and Flow Batteries

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,140