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Synthesis and Characterizations of Mn1+XCo2-XO4 Solid Solution Catalysts for Highly Efficient Li/Air Secondary Battery
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 Title & Authors
Synthesis and Characterizations of Mn1+XCo2-XO4 Solid Solution Catalysts for Highly Efficient Li/Air Secondary Battery
Park, Inyeong; Jang, Jaeyong; Lim, Dongwook; Kim, Taewoo; Shim, Sang Eun; Park, Seok Hoon; Baeck, Sung-Hyeon;
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solid solutions with various Mn/Co ratios were synthesized by a combustion method, and used as cathode catalysts for lithium/air secondary battery. Their electrochemical and physicochemical properties were investigated. The morphology was examined by transmission electron microscopy (TEM), and the crystallinity was confirmed by X-ray diffraction (XRD) analyses. For the measurement of electrochemical properties, charge and discharge measurements were carried out at a constant current density of , monitoring the voltage change. Electrochemical impedance spectroscopy (EIS) analyses were also employed to examine the change in charge transfer resistance during charge-discharge process. solid solutions showed enhanced cycleability as a cathode of Li/air secondary battery, and the performance was found to be strongly dependent on Mn/Co ratio. Among synthesized catalysts, exhibited the best performance and cycleability, due to high charge transfer rate.
Li/Air battery; solid solution;Air Electrode;
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