Understanding oxygen reactions in aprotic Li-O<sub>2</sub>batteries

Understanding oxygen reactions in aprotic Li-O₂batteries

Ma Shunchao^{1, 2, †,}, Zhang Yelong^{1, 2, †,}, Cui Qinghua^{1, 2}, Zhao Jing^{1, 2}, Peng Zhangquan^{1, ‡,}

In situand sequential AFM topographic images of Li₂O₂nanoplates on HOPG upon OER in Li-O₂cell. (a) Li₂O₂nanoplates acquired via the galvanostatic discharge at a cutoff potential of 2.2 V. (b) Potential-dependent view of HOPG electrode from 2.8 V (bottom) to 4.0 V (middle to top) at a sweeping rate of 5 mV/s. (c) Clean HOPG electrode at 4.0 V. The scale bars are 500 nm.^[49]