US 12,444,802 B2
Cell case and manufacturing method of cell case
Shintaro Utsumi, Susono (JP); Yuya Kumasaka, Susono (JP); Shunsuke Nagata, Nagakute (JP); and Kento Masumura, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Apr. 26, 2022, as Appl. No. 17/729,407.
Claims priority of application No. 2021-092399 (JP), filed on Jun. 1, 2021.
Prior Publication US 2022/0384895 A1, Dec. 1, 2022
Int. Cl. H01M 50/258 (2021.01); H01M 10/04 (2006.01); H01M 50/209 (2021.01); H01M 50/224 (2021.01); H01M 50/227 (2021.01)
CPC H01M 50/258 (2021.01) [H01M 10/0481 (2013.01); H01M 50/209 (2021.01); H01M 50/224 (2021.01); H01M 50/227 (2021.01); H01M 2220/20 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A cell case in which one or more battery cells are accommodated, the cell case comprising:
a metal plate portion including a plurality of metal plates constituting a first part of the cell case and placed such that the metal plates are separated from each other; and
a resin portion provided between the metal plates such that the resin portion connects the metal plates, the resin portion constituting a second part of the cell case, wherein:
the metal plates include a first metal plate and a second metal plate;
the first metal plate and the second metal plate include a first overlapped portion and a second overlapped portion, respectively, such that the first overlapped portion and the second overlapped portion overlap with each other via the resin portion;
the first overlapped portion includes a hook;
the second overlapped portion has an opening;
the hook is formed to be caught on the opening to restrict relative displacement between the first metal plate and the second metal plate along a direction where the first metal plate and the second metal plate are separated from each other;
the hook is provided at a side wall portion of the first overlapped portion;
the opening is provided in an extending part of the second overlapped portion, the extending part (i) extending from a bending part of the second overlapped portion and parallel to the side wall portion of the first overlapped portion and (ii) overlapping with the side wall portion; and
a gap between the hook and the extending part is filled with a portion of the resin portion.