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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/074846
Kind Code:
Provided in one embodiment of the present invention is a secondary battery capable of blocking current in a cell without scatter of quality by removing operating scatter of an overcharge safety device, when a cell is overcharged. The secondary battery, according to one embodiment of the present invention, comprises: an electrode assembly in which a first electrode and a second electrode are respectively arranged on two sides of a separator; a case accommodating the electrode assembly; a cap plate coupled to an opening on the case; a first electrode terminal and a second electrode terminal which are installed in a terminal hole on the cap plate and respectively connected to the first electrode and the second electrode; and the overcharge safety device in which a first free end part and a second free end part of a first short circuit member and a second short circuit member connected to the first electrode terminal and the second electrode terminal inside the cap plate are separated apart and accommodated in a tube.

KIM, Joonghun (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
Application Number:
Publication Date:
April 26, 2018
Filing Date:
October 18, 2017
Export Citation:
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SAMSUNG SDI CO., LTD. (150-20 Gongse-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 17084, KR)
International Classes:
H01M2/34; H01M2/30; H01M10/04
Foreign References:
Attorney, Agent or Firm:
PANKOREA PATENT AND LAW FIRM (13F, 70 Nonhyeon-ro 85-gil,Gangnam-gu, Seoul, 06234, KR)
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