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    • 4. 发明公开
    • 이차 전지
    • 二次电池
    • KR1020120126624A
    • 2012-11-21
    • KR1020110044566
    • 2011-05-12
    • 삼성에스디아이 주식회사
    • 이설아이소라박도형김준식이종훈우석균이종기김민환김윤창김제익
    • H01M2/34H01M10/44H01L41/00
    • H01M10/425H01M10/44
    • PURPOSE: A secondary battery is provided to self charge by using voltage generated from a piezoelectric element layer according to vibrations generated in an electronic device and generated by motion of the electronic device itself. CONSTITUTION: A secondary battery comprises: a battery case(23) with external coating layer and piezoelectric layer inside the external coating layer and accepting an electrode assembly; and a protection circuit module(30) electrically connected to the electrode assembly and mounted on the outside the battery case. A voltage storage part is equipped in the protection circuit module. The piezoelectric layer converts absorbed vibrations to voltage to store the voltage in the voltage storage part for self-charging at necessary. The piezoelectric layer comprises a piezoelectric film layer.
    • 目的:根据电子设备中产生的振动并通过电子设备本身的运动产生的振动,通过使用由压电元件层产生的电压来提供二次电池以进行自身充电。 构成:二次电池包括:具有外部涂层的电池壳体(23)和外部涂层内的压电层,并且接受电极组件; 以及电连接到电极组件并安装在电池壳体的外部的保护电路模块(30)。 保护电路模块中装有电压存储部分。 压电层将吸收的振动转换为电压,以将电压存储在电压存储部分中以进行必要的自充电。 压电层包括压电膜层。