Phase transitions in Na layered transition metal oxide materials involving slab gliding and considerable lattice parameter changes limit the battery cycling life, especially at high voltages. Here, authors pre-engineer 15.8% O-type stacking faults to a P-type Na0.7Mn0.8Ni0.2O2, improving stability and enabling an electrode specific energy of 635 Wh kg-1 with 600-cycle life.
- Qinhao Shi
- Fanghua Ning
- Yufeng Zhao
