The results of measuring h + diffusion coefficient of each charge - discharge cycle show that the coefficient of the sample electrode and the sample electrode added ni ( oh ) 2 do not decrease with the cycles . therefore , the reversibility of electrode is improved . meanwhile , it is confirmed that ni ( oh ) 2 can reduce the formation of inactive mn3o4 在每一周充放后的質(zhì)子擴(kuò)散系數(shù)的測定結(jié)果證實(shí)了采用部分還原樣以及摻ni ( oh ) _ 2的樣品電極在充放過程中,質(zhì)子擴(kuò)散系數(shù)并不減小,電極的可逆性提高,同時也證實(shí)了ni ( oh ) _ 2在電極的放電區(qū)間內(nèi)能有效抑制mn _ 3o _ 4的形成