Revealing instability and irreversibility in nonaqueous sodium–O2 battery chemistry. - Sayed, Sayed Youssef; Yao, Koffi P. C.; Kwabi, David G.; Batcho, Thomas P.; Amanchukwu, Chibueze V.; Feng, Shuting; Thompson, Carl V.; Shao-Horn, Yang (Chemical Communications, 2016)