A current collector covering nanostructured villous oxygen-deficient NiO fabricated by rapid laser-scan for Li-O2 batteries

Nanostructured villous NiO with oxygen vacancies (NiO1-δ) grown on Ni foam is synthesized as a stable and activated current collector for Li-O2 batteries. Experiments and theoretical calculations demonstrated that the introduction of oxygen vacancies improved the electronic conductivity for rapid charge-transfer and served as active sites to bind reaction species for electrochemistry reactions.267