Developments of the Advanced All-Solid-State Polymer Electrolyte Lithium Secondary Battery

概要

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In this review, our results of over ten years of research on the all-solid-state polymer electrolyte lithium secondary cell are introduced. The conductivity of polyethylene oxide (PEO)-based polymer electrolytes, which is the best candidate for polymer electrolyte lithium cells, and the interface resistance between PEO and the electrodes have been improved by the addition of BaTiO3. New composite anodes of Li2.6Co0.4N and metal oxides have been proposed for the polymer electrolyte cells. The composite anode has a high reversible capacity and a low irreversible capacity at the first cycle. A carbon anode for the polymer electrolyte lithium cell has also been developed and mesocarbon micro beads exhibit high electrochemical performance. 4-volt class all-solid-state polymer electrolyte cells with the PEO-Li(CF3SO2)2N-LiPF6-BaTiO3 electrolyte have been proposed that have good reversible charge-discharge performance.
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