Nanostructured MnO 2 anode materials for advanced lithium ion batteries

摘要: Owing to the high reversible capacity, low-cost, natural abundance and environmental friendliness, manganese dioxide (MnO2) is recognized as one of most appropriate promising anode materials. In this work, nanostructured MnO2 materials have been achieved via a hydrothermal method. The crystal structure, morphology specific surface area as-prepared are characterized by XRD, SEM BET techniques. As for lithium-ion batteries, samples show initial discharge capacity relatively excellent cyclic performance. electrochemical performance related structure morphology. Monoclinic it similar graphene, which more convenient fast ionic transportation into bulk electrode And porous can accommodate volume expansion, shorten electron lithium ion diffusion pathway provide large number reactive sites insertion extraction during cycling.