Electrochemical behavior of olivine-type LiMnPO₄ in aqueous solutions

The electrochemical behavior of olivine-type lithium manganese phosphate (LiMnPO₄) as a cathode material was investigated in a saturated aqueous lithium hydroxide electrolyte. The crystal structure and surface characterization of the olivine type LiMnPO₄ and the products which are formed on its oxidation and subsequent reduction were studied. X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and secondary ion mass spectrometry were used for these investigations. LiMnPO₄ was found to be reversibly delithiated/lithiated on electro-oxidation/reduction.4 page(s