"Dynamic structural evolution and controllable redox potential for abno" by Yan Fang Zhu, Yao Xiao et al.
Developing high-voltage cathode materials for sodium-ion batteries (SIBs) is both challenging and extremely urgent. Here, we report an abnormal high-voltage Na2/3Ni1/3Sn2/3O2 cathode material with a P2-structure stoichiometric composition and an O3-type layered phase. Using a classic P2-type layered oxide cathode Na2/3Ni1/3Mn2/3O2 as a model system, we demonstrate the accurate manipulation of orbital hybridization between transition metal and oxygen atoms to regulate the redox potential through engineering the chemical composition and corresponding electronic structure. Meanwhile, an in-depth ...
Source: uow.edu.au