Rechargeable secondary battery having improved safety against puncture and collapse

DRIVE March 9, 2011
Source
The present invention is directed to a rechargeable battery and a method of forming a rechargeable battery, which includes a short-circuit induction member to improve safety and reliability of the battery when punctured or collapsed. The battery includes an electrode assembly (110) having a first electrode (111), a second electrode (112), and a separator (113) interposed between the first and the second electrodes (111, 112); a case (120) for mounting the electrode assembly (110) therein; and a cap plate (150) for closing an opening of the case (120). A short-circuit induction member (160) is provided between the case (120) and the electrode assembly (110), wherein the case (120) is electrically coupled to the first electrode (111) of the electrode assembly (110) and the short-circuit induction member (160) is electrically coupled to the second electrode (112).

Discussion in the ATmosphere

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