Electrochemical performances of inorganic membrane coated electrodes for li-ion batteries |
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Authors: | Min Kim Young-Chang Nho Jong Hyeok Park |
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Institution: | (1) Department of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea;(2) Radiation Research Center for Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup-si, Jeollabuk-do, 580-185, Republic of Korea; |
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Abstract: | In the present study, we prepared new Li-ion batteries with inorganic membrane-coated electrodes fabricated by the direct
coating of a 400-nm-sized Al2O3 particles onto the anodes and studied their charge–discharge characteristics for the first time. Being made of 94 wt.% Al2O3 powder and 6 wt.% polymeric binder, the membranes on the anodes showed excellent wettability with the liquid electrolytes,
due to their high porosity and capillarity. The Li-ion batteries prepared by the assembly of the inorganic membrane-coated
electrodes showed excellent charge–discharge behavior compared to conventional Li-ion batteries with a polymeric separator.
However, their high-rate performance was affected by the binder contents in the inorganic membranes. The thermal properties
of the Li-ion battery with the inorganic membrane-coated electrodes were compared with those of a conventional one with a
polymeric separator. |
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