Abstract
AbstractThe development of high performance and low weight energy storage devices has been recently geared towards new energy batteries for electric and hybrid electric vehicles. Li‐air batteries are considered as an emerging energy source for electric cars because of their attractive theoretical specific energy of 11,400 Wh kg−1. Oxygen, as the positive electrode reaction substance of Li‐air battery, predominantly affects the dynamic performance of the battery and its diffusion is an important factor limiting the discharge process. Based on the resistance of oxygen transmission, the characteristics and influence of the Li‐air batteries are reviewed in this paper. The research on oxygen selective membrane, oxygen dissolution and transfer in positive electrode and electrolyte, structure of positive electrode and oxygenated additive in electrolyte are discussed to narrow down the internal mechanism factors that influence the Li‐air battery performance and service life. By discussing pathways to reduce the oxygen transmission resistance and hence improve the performance and life of the battery, we provide future perspectives on the application of Li‐air battery in electric vehicular power systems.
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