Open AccessResearch Progress for the Development of Li‐Air Batteries: Addressing Parasitic Reactions Arising from Air Composition
Author(s) -
Zhang Xueping,
Mu Xiaowei,
Yang Sixie,
Wang Pengfei,
Guo Shaohua,
Han Min,
He Ping,
Zhou Haoshen
Publication year - 2018
Publication title -
energy and environmental materials
Language(s) - English
Resource type - Journals
ISSN - 2575-0356
DOI - 10.1002/eem2.12008
Subject(s) - anode , catalysis , electrochemistry , energy storage , nanotechnology , battery (electricity) , redox , materials science , electrode , process engineering , chemical engineering , chemistry , engineering , organic chemistry , metallurgy , physics , power (physics) , quantum mechanics
Li‐air batteries are an extremely attractive technology for electrical energy storage, especially in long‐range electric vehicles, owing to their high theoretical specific energy. However, many issues still exist before their practical realization. Herein, the sole complexity of electrode reaction in Li‐air batteries is presented. And the critical components that influence the electrochemical performance of aprotic Li‐air batteries operating in ambient air are discussed. These include the mechanisms and pathways of CO 2 /Li 2 CO 3 and H 2 O/Li OH , catalysts of CO 2 reduction/evolution reactions, and reactions between the Li anode and air constituents. If these challenges can be solved, Li‐air batteries will soon be realized for practical application. Some hot topics in field of Li‐air batteries should be focused, such as the fundamental mechanism research referring to interfacial reactions of atmosphere components on porous electrode and Li metal anode, high‐efficiency solid catalyst design, and discovery of suitable soluble redox mediators.