Patents Examined by Kevin K Eng
  • Patent number: 11515607
    Abstract: There is provided a battery system including parallel-connected bus bars each connecting the plurality of prismatic battery cells in parallel, and a safety mechanism configured to be capable of interrupting a current path of prismatic battery cells connected in parallel by the parallel-connected bus bars, where the sealing plate of one of the prismatic battery cells convexly deforms due to a rise in an internal pressure of this prismatic battery cell when an abnormality occurs, the sealing plate that has convexly deformed comes into contact with the parallel-connected bus bars to form external short circuitry between the electrode terminals that are positive and negative of one prismatic battery cell connected in parallel to the prismatic battery cell with the abnormality, and external short circuitry activates the safety mechanism that interrupts a current flowing into the prismatic battery cell with the abnormality.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 29, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naotake Yoshida, Kazuhiro Harazuka, Nobuo Iwatsuki, Shinji Ota
  • Patent number: 11482755
    Abstract: The present disclosure relates to a secondary battery and a battery pack, and the secondary battery includes: an outer casing, comprising a case and a cap assembly connected to each other, the case is provided with an opening, the cap assembly includes a cap plate and an electrode terminal connected to the cap plate, wherein the cap plate is adapted to cover the opening; an electrode assembly accommodated in the case and including a main body and a tab extending out from the main body, wherein the tab is electrically connected to the electrode terminal; a vent connected to the outer casing; and an insulating member at least partially disposed between the electrode assembly and the vent, wherein a projection of the vent on the main body is at least partially covered by the insulating member.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 25, 2022
    Assignee: Jiangsu Contemporary Amperex Technology Limited
    Inventors: Dongyang Shi, Fei Hu, Zhenhua Li, Yuanbao Chen