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    • 3. 发明申请
    • ELECTROCHEMICAL DEVICE
    • 电化学装置
    • US20120288747A1
    • 2012-11-15
    • US13519752
    • 2011-01-18
    • Masaya NaoiKatsuhiko HiedaKinji Yamada
    • Masaya NaoiKatsuhiko HiedaKinji Yamada
    • H01M2/02H01G9/00H01M2/30
    • H01G11/76H01G11/12H01G11/18H01G11/26H01M10/0413H01M10/045Y02E60/13
    • The object of the present invention is to provide an electrochemical device, by which short circuit between electrode sheets can be prevented even when the electrode sheets come into contact with each other due to misregistration upon folding of the electrode sheets.The electrochemical device of the present invention is an electrochemical device having a electrode unit with a pair of band-like electrode sheets respectively folded so as to be alternately stacked in a state that the following respective electrode layers come into no contact with each other, wherein the pair of the electrode sheets each have a band-like current collector, a plurality of electrode layers respectively formed on plane regions surrounded by peripheral edge portions and folding edge portions in at least one surface of the current collector, and insulating films formed on respective both surfaces of the peripheral edge portions and folding edge portions in the current collector.
    • 本发明的目的是提供一种电化学装置,即使当电极片折叠时由于不对准而导致电极片彼此接触,也可以防止电极片之间的短路。 本发明的电化学装置是具有电极单元的电化学装置,该电极单元具有分别折叠的一对带状电极片,以便在以下各个电极层彼此不接触的状态下交替层叠,其中 一对电极片各自具有带状集电体,分别形成在由周缘部包围的平面区域上的多个电极层和集电体的至少一个表面中的折边部,以及形成在各个电极片上的绝缘膜 周缘部的两个面和集电体的折边部。