公开(公告)号：US10804508B2

公开(公告)日：2020-10-13

申请号：US15869370

申请日：2018-01-12

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Mizuho Matsumoto ,  Tomohiro Matsuura ,  Satomi Yamamoto ,  Yuki Yamasaki

IPC分类号： H01M2/08 ,  H01G11/80 ,  H01M2/36 ,  H01M2/10 ,  H01M2/12 ,  H01G11/22 ,  H01G11/12 ,  H01G11/18 ,  H01G11/76 ,  H01G11/74 ,  H01M10/0525

摘要： A sealed cell according to the present invention includes an angular case 50 that accommodates an electrode body. The angular case 50 includes a concave case main body 52, having an opening, and a sealing member 54. The case main body 52 has a flat surface 52a opposed to the sealing member 54, with the electrode body interposed therebetween, and a side wall 52b rising from the flat surface 52a. The peripheral edge portion of the opening provided in the case main body 52 and the sealing member 54 are joined to each other by seal welding. Concave and convex portions including concave portions 56a, 156a recessed toward the inside of the case and convex portions 56b flush with the flat surface 52a are formed on at least one side 58a portion of end sides of the flat surface 52a. Electrode terminals 80, 82 are disposed on bottom surfaces of the concave portions 56a, 156a.

公开(公告)号：US10734654B2

公开(公告)日：2020-08-04

申请号：US15887482

申请日：2018-02-02

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Satomi Yamamoto ,  Mizuho Matsumoto ,  Hiroshi Takamatsu ,  Hiroaki Imanishi ,  Ichiro Murata ,  Kiyomi Kozuki

IPC分类号： H01M4/66 ,  H01M2/06 ,  H01M2/26 ,  H01M2/04 ,  B23K11/00 ,  B23K26/32 ,  B23K26/08 ,  B23K26/242 ,  H01M2/22 ,  H01M10/0525 ,  H01M2/30 ,  B23K103/10 ,  B23K101/18 ,  B23K103/12 ,  B23K101/36

摘要： A secondary battery includes: an electrode body including an electrode main body, a collector foil protrusion section, and a collector foil connection portion; a first collector terminal including a first extension part that is welded to the collector foil connection portion; and a second collector terminal that is a member separate from the first collector terminal and includes a second extension part welded to the collector foil connection portion. The first extension part and the second extension part are located on the opposite sides of the collector foil connection portion. The secondary battery includes a welded joint at which both the first extension part and the second extension part are welded to the collector foil connection portion such that the first extension part, the second extension part, and the collector foil connection portion are united. The first collector terminal and the second collector terminal are united through the welded joint.