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Nano-structured gas diffusion electrode – a high power and stable cathode material for rechargeable Li-air batteries

Lookup NU author(s): Dr Hua Cheng

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Abstract

The rechargeable Li-air battery has a key role to play for future renewable energy and electric vehicle industries due to its high energy density. However, it suffers from cycling fading and low rate capability, mainly caused by the problem of cathode. Here we create a nanoporous three-dimensional gas diffusion electrode to replace a conventional composite electrode, prolonging battery cycle life over 200 cycles with higher rate capabilities and high capacities. Electrochemical and spectroscopic characterisations indicate the mechanism for the improvement.

Publication metadata

Author(s): Cheng H, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2013

Volume: 235

Pages: 226-233

Print publication date: 19/02/2013

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.jpowsour.2013.02.028

DOI: 10.1016/j.jpowsour.2013.02.028

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