Lookup NU author(s): One Sahapatsombut,
Dr Hua Cheng,
Professor Keith Scott
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
A macro-homogeneous model has been developed to evaluate the impact of replacing pure oxygen with ambient air on the performance of a rechargeable non-aqueous Li-air battery. The model exhibits a significant reduction in discharge capacity, e.g. from 1240 to 226 mAh g(carbon)(-1) at 0.05 mA cm(-2) when using ambient air rather than pure oxygen. The model correlates the relationship between the performance and electrolyte decomposition and formation of discharge products (such as Li2O2 and Li2CO3) under ambient air conditions. The model predicts a great benefit of using an oxygen-selective membrane on increasing capacity. The results indicate a good agreement between the experimental data and the model. (C) 2013 Elsevier B.V. All rights reserved.
Author(s): Sahapatsombut U, Cheng H, Scott K
Publication type: Article
Publication status: Published
Journal: Journal of Power Sources
Print publication date: 01/03/2014
Online publication date: 05/11/2013
Acceptance date: 24/10/2013
ISSN (print): 0378-7753
ISSN (electronic): 1873-2755
Publisher: Elsevier SA
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