作者: Watanuki Hiroshi , Endo Takayuki
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摘要: The present invention provide a nonaqueous electrolyte secondary battery (1), comprising element produced by laminating and winding up positive electrode (23) negative (27) with separator (26) interposed therebetween, is not provided on the outermost periphery of element, current collector surface one or exposed to outside, separation-preventive tape (7) attached except part longer sides periphery. This increases capacity thin-walled type battery.