公开(公告)号：US20220263167A1

公开(公告)日：2022-08-18

申请号：US17454826

申请日：2021-11-15

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA ,  Toshiyuki ARIGA

IPC: H01M50/178 ,  H01M50/105 ,  H01M50/211 ,  H01M50/136

Abstract: To reduce influence of external force on a current collection tab lead and a current collection tab in a laminated cell type battery. A single film of an exterior body contacts and covers a top surface, a bottom surface, and two side surfaces of a battery perpendicular to an end surface of the battery from which a current collection tab and a current collection tab lead are provided to extend, covers the end surface of the battery from which the current collection tab and the current collection tab lead protrude, and is folded in from both short sides of the end surface such that triangular pyramid-shaped spaces are formed on both sides. A reinforcement member is arranged in and joined to each triangular pyramid-shaped space.

公开(公告)号：US20220246942A1

公开(公告)日：2022-08-04

申请号：US17585586

申请日：2022-01-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Kiyoshi TANAAMI ,  Masahiro OHTA ,  Toshiyuki ARIGA ,  Toshimitsu TANAKA

IPC: H01M4/66 ,  H01M50/531 ,  H01M4/80 ,  H01M4/13 ,  H01M10/0525

Abstract: There is provided an electrode including: a current collector; an electrode material mixture; a plate-shaped metal body having a through-hole formed therethrough; a resin provided inside the through-hole; and an electrode tab, the current collector being a porous metal body, the current collector having pores filled with the electrode material mixture, the electrode tab being an extending portion extending from the plate-shaped metal body, wherein the current collector has an inner region in which the through-hole of the metal plate-shaped body is located in top view. There is also provided an electricity storage device including the electrode.

公开(公告)号：US20210376406A1

公开(公告)日：2021-12-02

申请号：US17327779

申请日：2021-05-24

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA ,  Toshiyuki ARIGA

IPC: H01M10/658 ,  H01M50/209

Abstract: To provide a solid-state battery module capable of easily performing positioning of solid-state battery cells and preventing misalignment of a laminated body, and the solid-state battery cells. A solid-state battery module 1 includes: a plurality of solid-state battery cells 10, each including a solid-state battery 11 and an outer sheath 12 that accommodates the solid-state battery 11; an insulating member 14; and a mounting plate 4 that mounts the plurality of solid-state battery cells 10. The solid-state battery 11 includes a laminated body 110 including a negative electrode layer, a solid electrolyte layer, and a positive electrode layer, and a collector tab 13, and the insulating member 14 is provided on a side face other than a side face on which the collector tab 13 of the laminated body 110 is provided.

公开(公告)号：US20210305630A1

公开(公告)日：2021-09-30

申请号：US17260228

申请日：2019-07-12

Applicant: HONDA MOTOR CO., LTD.

Inventor： Masahiro OHTA ,  Takuya TANIUCHI

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/139 ,  H01M10/0562 ,  H01M50/534

Abstract: A positive electrode for a solid-state battery, a manufacturing method for a positive electrode for a solid-state battery, and a solid-state battery are provided, with which the occurrence of lamination misalignment in a lamination step when manufacturing a solid-state battery and the occurrence of cracking at the time of lamination pressing, as well as short-circuiting due to contact with a tab, can be suppressed. For a collector of an electrode layer, a coating layer is formed not only on the outer side of an active material layer including an active material but also on end faces of the collector.

公开(公告)号：US20210234243A1

公开(公告)日：2021-07-29

申请号：US17148588

申请日：2021-01-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M50/533 ,  H01M10/0562 ,  H01M10/058

Abstract: Provided is a battery cell that can effectively overcome problems caused by known battery cells having an outer jacket constituted by one folded film. A battery cell includes a battery, and an outer jacket accommodating the battery. At least one end face of the battery is connected to a current-collecting tab lead. The outer jacket is constituted by one film which is folded along another end face of the battery different from the end face connected to the current-collecting tab lead, and end portions of which are joined to each other such that the current-collecting tab lead is sandwiched between the end portions. The outer jacket has a hole at a position adjacent to the end face connected to the current-collecting tab lead, the hole being blocked.

公开(公告)号：US20210234223A1

公开(公告)日：2021-07-29

申请号：US17151223

申请日：2021-01-18

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M50/204 ,  H01M50/264 ,  H01M50/533 ,  H01M50/505 ,  H01M10/613 ,  H01M10/6551 ,  H01M50/291 ,  H01M10/0525 ,  H01M50/202

Abstract: Provided is a battery module including a plurality of battery cells stacked on one another and being capable of effectively preventing damage to the battery cells despite such a configuration. A battery module 1 includes a plurality of battery cells 10 stacked on one another and a battery cell support 2. The battery cells 10 each include a battery 11 and an exterior casing 12 accommodating the battery 11. The battery cell support 2 is disposed between the plurality of battery cells 10. The battery module preferably further includes a fixation film 6 wound around the plurality of battery cells in a stacking direction and fixing the plurality of battery cells.

公开(公告)号：US20210194048A1

公开(公告)日：2021-06-24

申请号：US17110272

申请日：2020-12-02

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M2/18

Abstract: To provide a solid-state battery module and a separator which can apply sufficient surface pressure to a solid-state battery cell and are excellent in durability and vibration resistance.
A separator (120) disposed between adjacent solid-state battery cells (101) in a solid-state battery module (100) including a plurality of solid-state battery cells (101) to electrically insulate the adjacent solid-state battery cells (101) of the plurality of solid-state battery cells (101), from each other. The separator (120) includes elastically deformable elastic members (123a, 123b) which apply biasing force in the stacking directions of the plurality of solid-state battery cells (101).
Durability and vibration resistance can be obtained by adequately fixing the solid-state battery cells (101) with the elastic members (123a, 123b).

公开(公告)号：US20210119285A1

公开(公告)日：2021-04-22

申请号：US17042201

申请日：2019-03-22

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M50/105 ,  H01M50/533 ,  H01M50/107

Abstract: Provided is a solid-state battery cell that can effectively improve the volume energy density of a battery module, while maintaining the sealing performance of an exterior body. A battery cell 1 comprises a battery 10 and an exterior body 2 that houses the battery. The battery 1 has a positive electrode, an electrolyte, and a negative electrode. The exterior body 2 has a turnback section 21, which is formed of a single film folded back in order to house the battery 1, and bonded sections 22a, 23a, 24a, which are formed by bonding opposite edges of the film.

公开(公告)号：US20210119250A1

公开(公告)日：2021-04-22

申请号：US17041431

申请日：2019-02-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6551 ,  H01M50/10 ,  H01M50/20

Abstract: Provided are: a solid-state battery in which an initial load is applied to a battery cell; and a solid-state battery module comprised of the battery. This solid-state battery includes a pressing portion provided on a solid-state battery case so that a spring force is utilized to apply the initial load to the solid-state battery.
Specifically, the solid-state battery includes a solid-state battery cell, and a battery case for accommodating the solid-state battery cell, in which the solid-state battery cell is a stack including a positive electrode, a negative electrode, and a solid electrolyte present between the positive electrode and the negative electrode, and in which a face constituting the battery case and extending substantially perpendicular to the stacking direction of the stack has a pressing portion.

公开(公告)号：US20210020995A1

公开(公告)日：2021-01-21

申请号：US17042199

申请日：2019-03-25

Applicant: HONDA MOTOR CO., LTD.

Inventor： Masahiro OHTA ,  Takuya TANIUCHI

IPC: H01M10/0585 ,  H01M2/10 ,  H01M10/0525

Abstract: Provided is a solid-state battery that makes it possible to minimize the occurrence of cracks in layers constituting the solid-state battery even when there is variation in the thicknesses of the individual layers. The solid-state battery is provided with a plurality of solid-state battery cells each provided with a positive electrode layer, a negative electrode layer, and a solid electrolyte layer sandwiched between the positive electrode layer and the negative electrode layer. The solid-state battery is additionally provided with a stress relaxation layer for relaxing stress applied to the solid-state battery. The flatness tolerance of the stress relaxation layer-side surface of another layer in contact with the stress relaxation layer is 100 μm or more and/or the parallelism tolerance of the stress relaxation layer-side surface of another layer in contact with the stress relaxation layer is 100 μm or more.