Abstract
Irreversible parasitic reactions cause poor rechargeability and efficiency of Li-O2 batteries, and have predominantly been ascribed to the reaction of reduced oxygen species with cell components.Recently, it was demonstrated that singlet oxygen (1O2) formed at the cathode during discharge and from the onset of charge accounts for the majority of parasitic reaction rather than reduced oxygen species.In this presentation, I summarize the current knowledge about parasitic reactions of singlet oxygen in lithium-oxygen batteries and guide pathways to counteract this problem for reversible system.
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