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A method to improve the performance of Si thin film anodes for rechargeable lithium batteries
A method to improve the performance of Si thin film anodes for rechargeable lithium batteries
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机译:一种提高可充电锂电池Si薄膜阳极性能的方法
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摘要
The present invention relates to a method for improving charge/discharge cycle characteristics of a lithium secondary battery using a Si based anode active material, the method comprising surface-treating a surface of an anode current collector to have specific morphology, and preferably vapor-depositing a silicon film, as the anode active material by sputtering under application of bias voltage to the surface-treated anode current collector, and/or disposing an adhesive layer between the surface-treated anode current collector and silicon film, so as to reinforce bondability between the anode current collector and active material, ultimately leading to improvement of charge/discharge characteristics of the battery.
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