公开(公告)号：US20210384585A1

公开(公告)日：2021-12-09

申请号：US17308496

申请日：2021-05-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Sho Ando

IPC: H01M50/392 ,  H01M50/342

Abstract: A battery unit includes a secondary battery, a first trap, and a second trap. The secondary battery includes a battery case provided with a gas vent valve, and an electrolyte solution enclosed in the battery case. The first trap includes a mesh material disposed outside the battery case so as to oppose and cover the gas vent valve. The second trap includes a liquid retaining material made of a non-flammable material and disposed further outward of the first trap so as to oppose and cover the gas vent valve.

公开(公告)号：US20220059876A1

公开(公告)日：2022-02-24

申请号：US17376956

申请日：2021-07-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Sho Ando ,  Akira Kiyama ,  Masaki Kato ,  Koshiro Yoneda ,  Kensaku Miyazawa ,  Kunimitsu Yamamoto

IPC: H01M10/0585 ,  H01M10/0525

Abstract: An all-solid-state battery includes a solid electrode body including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, and a laminate film that stores the solid electrode body. The laminate film has a fragile part with respect to a needle-like foreign substance. The strength of the fragile part is lower than the strength of a part of the laminate film other than the fragile part.

公开(公告)号：US11502371B2

公开(公告)日：2022-11-15

申请号：US17308496

申请日：2021-05-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Sho Ando

IPC: H01M50/00 ,  H01M50/392 ,  H01M50/342

Abstract: A battery unit includes a secondary battery, a first trap, and a second trap. The secondary battery includes a battery case provided with a gas vent valve, and an electrolyte solution enclosed in the battery case. The first trap includes a mesh material disposed outside the battery case so as to oppose and cover the gas vent valve. The second trap includes a liquid retaining material made of a non-flammable material and disposed further outward of the first trap so as to oppose and cover the gas vent valve.

公开(公告)号：US20220021004A1

公开(公告)日：2022-01-20

申请号：US17366379

申请日：2021-07-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akira KIYAMA ,  Sho Ando ,  Kunimitsu Yamamoto ,  Masaki Kato ,  Koshiro Yoneda ,  Kensaku Miyazawa

IPC: H01M4/66 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M4/74 ,  H01M4/36 ,  H01M50/46

Abstract: A cell, which is a non-aqueous electrolyte secondary battery, includes: an electrode assembly including a plurality of sheet-shaped positive electrodes and a plurality of sheet-shaped negative electrodes, the plurality of positive electrodes and the plurality of negative electrodes being alternately stacked with separators interposed therebetween; and a battery case that houses the electrode assembly. The electrode assembly includes: an outer layer including a positive electrode arranged on an outermost side of the electrode assembly, and a separator adjacent to the positive electrode; and an inner layer arranged on an inner side of the outer layer. The outer layer includes a fusing member configured to fuse due to heat generation in the electrode assembly caused by a short circuit in the electrode assembly. The inner layer does not include the fusing member.