High capacity sodium-rich layered oxide cathode for sodium-ion batteries
Guo Gen-Cai, Wang Changhao, Ming Bang-Ming, Luo Si-Wei, Su Heng, Wang Bo-Ya, Zhang Ming, Yu Hai-Jun †, Wang Ru-Zhi ‡
       

(color online) Ground-state configuration of Na1.75MnO3, Na1.5MnO3, Na1.25MnO3, and NaMnO3.