Understanding oxygen reactions in aprotic Li-O2batteries
Ma Shunchao1, 2, †, , Zhang Yelong1, 2, †, , Cui Qinghua1, 2, Zhao Jing1, 2, Peng Zhangquan1, ‡,
       

Differential electrochemical mass spectrometry on oxidation of Li2O2, signal form/z= 32 (O2) andm/z= 44 (CO2) in response to stepwise increase in oxidation current. Inset:m/z= 32 signal as a function of oxidation current, showing proportional relationship.[24]