Synthesis, electrochemical properties, and changes in crystal and electronic structures during charge/discharge process of spinel-type cathode materials Mg4V5-xNixO12 (x = 0, 0.3, 0.6, 1.0) for magnesium secondary batteries

Yasushi Idemoto, Natsumi Kawakami, Naoya Ishida, Naoto Kitamura