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    • 4. 发明申请
    • ELECTRONIC DEVICE WITH SECONDARY BATTERY
    • 具有二次电池的电子设备
    • US20150333359A1
    • 2015-11-19
    • US14709950
    • 2015-05-12
    • Semiconductor Energy Laboratory Co., Ltd.
    • Minoru TAKAHASHIRyota TajimaTakuya MiwaYuugo Goto
    • H01M10/04H01M10/42
    • In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A cushioning material is provided in a region surrounded by an exterior body of a secondary battery. Specifically, a cushioning material is provided on the periphery of a current collector such that a sealing portion of an exterior body (film) is located outside the cushioning material.
    • 在将具有比金属罐低的强度的膜用作二次电池的外部主体的情况下,设置在由外部主体包围的区域中的集电体,设置在外部主体的表面上的活性物质层 集电器等可能会在外部施加到二次电池上时损坏。 提供即使在外部施加力时也耐用的二次电池。 缓冲材料设置在由二次电池的外部主体围绕的区域中。 具体而言,在集电体的周围设置有缓冲材料,使得外部体(膜)的密封部位于缓冲材料的外侧。
    • 6. 发明申请
    • POWER STORAGE UNIT AND ELECTRONIC DEVICE INCLUDING THE SAME
    • 电源存储单元和包括其的电子设备
    • US20150140400A1
    • 2015-05-21
    • US14529185
    • 2014-10-31
    • SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    • Shunpei YAMAZAKIMinoru TAKAHASHIRyota TAJIMA
    • H01M10/04H01M2/18
    • H01M10/0459H01M2/0212H01M2/18H01M10/0585
    • A short-circuit between a positive electrode and a negative electrode due to a deposit on an electrode plate is prevented in a power storage unit such as a lithium-ion secondary battery. An electrode plate is covered by a folded insulating sheet. Bonding is performed on facing edges of the sheet which overlap with each other in a portion outer than the electrode plate. One or more openings are formed in the electrode plate, and the facing edges of the folded sheet are bonded to each other also in the opening. Such a bonding portion enables the sheet to be in closer contact with the electrode plate and prevents the displacement between the sheet and the electrode plate. When the electrode plate is deformed or vibrated, the sheet can be rubbed against a surface of the electrode plate, thereby removing a deposit from the surface of the electrode plate.
    • 在诸如锂离子二次电池的蓄电单元中,防止了由于在电极板上沉积而导致的正极和负极之间的短路。 电极板被折叠的绝缘片覆盖。 在与电极板相比较的部分彼此重叠的片材的相对边缘上进行接合。 在电极板中形成一个或多个开口,并且折叠片的相对边缘也在开口中彼此结合。 这样的接合部能够使片材与电极板更接近,并且防止片材与电极板之间的位移。 当电极板变形或振动时,片材可以与电极板的表面摩擦,从而从电极板的表面去除沉积物。