Preparation And Electrochemical Performances Investigation Of Manganese-based Electrode Materials For Lithium-ion Batteries

In this paper,some works about manganese-based electrode materials for lithiumion batteries have been introduced,including MnO₂ anode material synthesis and insitu coated with CNT,LiNi_0.5Mn_1.5O₄?LNMO?cathode material synthesis and doped with Na,LNMO | MnO₂ full-cell design and its performances investigation.Synthesize MnO₂ with three different morphologies using NH₄HCO₃,?NH₄?₂S₂O₈ and KMnO₄,and investigated the electrochemical performance for anode material in lithium-ion batteries.An inner coating method to improve the performance of MnO₂ anode material was reported,which using CNTs as inner coating materials.The electrochemical tests have demonstrated that the synthesized CNT inner coating of the MnO₂ significantly enhanced the electrochemical performance of MnO₂ anode material.Synthesize LiNi_0.5Mn_1.5O₄ via a solid method and modify it via doping Na.The influence of calcination temperature on morphologies and electrochemical performance of LiNi_0.5Mn_1.5O₄ and the improvement of electrochemical properties of Na doping LiNi_0.5Mn_1.5O₄ cathode materials were discussed.The LNMO | MnO₂ full cell was successfully assembled using LNMO as cathode and MnO₂ as anode.The novel manganese-based full-cell presents an average discharge voltage of 2.8V with an initial capacity of 86.9 m Ah/g at a current density of 43 mA/g.