A high-performance rechargeable Li–O2 battery with quasi-solid-state electrolyte*

Project supported by the National Key R&D Program of China (Grant Nos. 2016YFB0100300 and 2016YFB0100100), the National Basic Research Program of China (Grant No. 2014CB932300), the Beijing Municipal Science & Technology Commission, China (Grant No. D171100005517001), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09010000), and the National Natural Science Foundation of China (Grant No. 51502334).
Peng Jia-Yue1, 2, Huang Jie3, Li Wen-Jun4, Wang Yi1, 2, Yu Xiqian1, †, Hu Yongsheng1, Chen Liquan1, Li Hong1, 2, ‡
       

(color online) Electrochemical performances of the QSSE-based Li–O2 battery. (a) Charge-discharge curves measured at a current density of 100 mA/g with discharge cut-off voltage of 2.2 V at 25 °C and 80 °C; (d) EIS spectra of the QSSE-based Li–O2 battery measured before and after the first discharge and charge process. A current density of 100 mA/g with a fixed capacity of 1000 mAh/g was used for Li–O2 cell cycled at 80 °C; typical discharge-charge profiles of Li–O2 cells cycled with a fixed capacity of 1000 mAh/g at (b) 25 °C and (c) 80 °C, respectively; the terminal voltage recorded with Li–O2 cells cycled at (e) 25 °C and (f) 80 °C, respectively.