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.

公开(公告)号：US20240063449A1

公开(公告)日：2024-02-22

申请号：US18481242

申请日：2023-10-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/48 ,  H01M50/224 ,  H01M50/531

CPC classification number: H01M10/482 ,  H01M10/48 ,  H01M10/486 ,  H01M50/224 ,  H01M50/531 ,  H01M50/209

Abstract: Provided is a battery module having a high energy density and exhibiting suppressed electrode displacement or peeling during vibration. In the present invention, a residual space in a battery cell, which is necessary for the lithium ion secondary batteries employing the liquid electrolyte is eliminated, and additionally a module component is disposed in a portion that would provide the residual space.

公开(公告)号：US20230299329A1

公开(公告)日：2023-09-21

申请号：US18321793

申请日：2023-05-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/04 ,  H01M10/0585 ,  H01M50/116 ,  H01M50/30

CPC classification number: H01M10/0468 ,  H01M10/0585 ,  H01M50/116 ,  H01M50/394

Abstract: To provide a solid-state battery capable of applying an initial load that results in sufficient surface pressure to a battery cell, and a method for making the solid-state battery.
A pressing part is provided in the solid-state battery case and the force of the spring is utilized, and a gas vent port is provided to replace gas or perform depressurization.
Specifically, a solid-state battery including a solid-state battery cell and a battery case that houses the solid-state battery cell, is provided. A pressing part that applies surface pressure to the solid-state battery cell is formed on a surface constituting the battery case that is substantially perpendicular to the laminating direction of a laminate constituting the solid-state battery cell, and at least one gas vent port is formed in the battery case.