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    • 5. 发明申请
    • CABLE-TYPE SECONDARY BATTERY
    • 电缆式二次电池
    • US20120135299A1
    • 2012-05-31
    • US13363640
    • 2012-02-01
    • Yo-Han KwonJe-Young KimHeon-Cheol Shin
    • Yo-Han KwonJe-Young KimHeon-Cheol Shin
    • H01M2/02
    • H01M2/0202H01M2/0275H01M4/66H01M4/667H01M4/75H01M10/0436H01M10/052H01M10/058H01M2002/0205
    • Provided is a cable-type secondary battery including an electrode assembly and a cover member surrounding the electrode assembly, the electrode assembly including first and second electrodes of an elongated shape and a separator or an electrolyte interposed between the first and second electrodes, each electrode including a current collector having a cross section of a circular, asymmetrical oval or polygonal shape perpendicular to the lengthwise direction thereof and an electrode active material applied onto the surface of the current collector, wherein the cover member has at least partially a predetermined concavo-convex pattern in the direction of the electrode assembly. The cover member of a concavo-convex pattern may improve the flexibility of the cable-type secondary battery. When the cover member is applied to an electrode active material pattern layer, the flexibility of the cable-type secondary battery may be further improved.
    • 提供一种电缆型二次电池,其包括电极组件和围绕电极组件的盖构件,电极组件包括细长形状的第一和第二电极以及插在第一和第二电极之间的隔膜或电解质,每个电极包括 具有垂直于其长度方向的圆形,不对称椭圆形或多边形形状的横截面的集电器和施加在集电器表面上的电极活性材料,其中盖构件至少部分地具有预定的凹凸图案 在电极组件的方向上。 凹凸图案的盖构件可以提高电缆型二次电池的柔性。 当将盖构件施加到电极活性材料图案层时,可以进一步提高电缆型二次电池的柔性。