公开(公告)号：US20220006162A1

公开(公告)日：2022-01-06

申请号：US17364881

申请日：2021-07-01

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA ,  Toshiyuki ARIGA

IPC: H01M50/583 ,  H01M10/658 ,  H01M50/531 ,  H01M50/543

Abstract: A highly safe and high energy density battery is provided. A battery (1) includes: a laminated body (100) in which a positive electrode (20) including a positive electrode collector (22), a solid electrolyte (30) and negative electrode (10) including a negative electrode collector (12) are repeatedly arranged, and at least any of the positive electrode collector (22) and negative electrode collector (12) is respectively drawn from an end face of the laminated body (100), and configures a plurality of negative electrode collector tabs (12a, 12b, 12c and 12d); an outer packaging (300) which houses the laminated body (100); and a lead terminal (200) which is electrically connected with the plurality of collector tabs, and having a part extending from the outer packaging (300) to outside, in which the lead terminal (200) is connected with a first overcurrent isolation part (210) arranged inside of the outer packaging (300).

公开(公告)号：US20210184279A1

公开(公告)日：2021-06-17

申请号：US17100957

申请日：2020-11-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/48 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2/10

Abstract: Provided is a battery pack having excellent energy density and durability.
A battery pack 100 includes solid-state battery modules 102 each configured such that a plurality of solid-state battery cells containing a solid electrolyte is stacked and electrolytic solution-based battery modules 32 each configured such that a plurality of electrolytic solution-based battery cells containing an electrolytic solution is stacked, the solid-state battery modules 102 and the electrolytic solution-based battery modules 32 being combined and housed in the pack. The solid-state battery modules 102 are arranged to surround the electrolytic solution-based battery modules 32.

公开(公告)号：US20210184244A1

公开(公告)日：2021-06-17

申请号：US17105645

申请日：2020-11-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Masahiro OHTA

IPC: H01M10/04 ,  H01M2/12 ,  H01M10/0585 ,  H01M2/02

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.

公开(公告)号：US20210119304A1

公开(公告)日：2021-04-22

申请号：US17041432

申请日：2019-02-27

Applicant: HONDA MOTOR CO., LTD.

Inventor： Masahiro OHTA ,  Takuya TANIUCHI

IPC: H01M50/533 ,  H01M4/13

Abstract: Provided are: a current collector tab for solid-state batteries that minimizes the occurrence of cracks in an electrode active material and that makes it possible to minimize peeling within an electrode sheet or interlayer peeling in a layered body of an electrode and a solid electrolyte; a current collector; and an electrode sheet.
A stress relaxation section is provided to a current collector tab for a positive electrode sheet or a negative electrode sheet.
Specifically, the current collector tab for solid-state batteries comprises a stress relaxation section in a bent area occurring when a plurality of the current collector tabs are bundled in a solid-state battery cell.

公开(公告)号：US20240283035A1

公开(公告)日：2024-08-22

申请号：US18414471

申请日：2024-01-17

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Terumi FURUTA

IPC: H01M10/42 ,  H01M4/02 ,  H01M4/134 ,  H01M4/38 ,  H01M50/46

CPC classification number: H01M10/4235 ,  H01M4/134 ,  H01M4/382 ,  H01M50/46 ,  H01M2004/027

Abstract: To provide a solid-state battery comprising an electrode laminate comprising a negative electrode current collector, a lithium metal layer, a solid electrolyte layer, a positive electrode material mixture layer, and a positive electrode current collector sequentially laminated, wherein one surface of the solid electrolyte layer faces the lithium metal layer, and an other surface faces the positive electrode material mixture layer; a resin or resin composition is disposed on outer periphery portions of the negative electrode current collector, the lithium metal layer, and the solid electrolyte layer of the electrode laminate; and a space formed between the lithium metal layer and the solid electrolyte layer formed by chemical conversion of the electrode laminate is filled with the resin or resin composition.

公开(公告)号：US20240072240A1

公开(公告)日：2024-02-29

申请号：US18351507

申请日：2023-07-13

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Terumi FURUTA

IPC: H01M4/134 ,  H01M10/0525

CPC classification number: H01M4/134 ,  H01M10/0525 ,  H01M2004/027

Abstract: Provided is a lithium metal secondary battery having a negative electrode layer, a solid electrolyte layer, and an intermediate layer therebetween, which can suppress the deposition of lithium metal on outer peripheral surface(s) of the intermediate layer along the stacking direction. The lithium metal secondary battery has a negative electrode layer including a lithium metal layer, an intermediate layer, a solid electrolyte layer, and a positive electrode layer stacked in this order, in which at least one of outer peripheral surfaces of the intermediate layer along the stacking direction abuts against and is covered with a protective layer, and the protective layer has ionic conductivity and no electron conductivity.

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：US20230318145A1

公开(公告)日：2023-10-05

申请号：US18181560

申请日：2023-03-10

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takuya TANIUCHI ,  Toshiyuki ARIGA ,  Tadashi MATSUSHITA

IPC: H01M50/474

CPC classification number: H01M50/474

Abstract: Provided is a solid-state battery comprising: electrode laminates, each of the electrode laminates being configured with a solid electrolyte layer and a positive electrode composite layer that are sequentially laminated on a negative electrode current collector; and a positive electrode current collector sandwiched between the electrode laminates. The positive electrode composite layer is provided with a positive electrode insulating frame on an outer perimetric part thereof. When the solid-state battery is viewed from above, an outer perimetric edge of the negative electrode current collector exists inward of an outer perimetric edge of the solid electrolyte layer, and an outer perimetric edge of the positive electrode insulating frame exists at a same position as the outer perimetric edge of the solid electrolyte layer or exists outward of the outer perimetric edge of the solid electrolyte layer.

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.

公开(公告)号：US20220231329A1

公开(公告)日：2022-07-21

申请号：US17577356

申请日：2022-01-17

Applicant: HONDA MOTOR CO., LTD.

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

IPC: H01M10/0562 ,  H01M10/04 ,  H01M50/109 ,  H01M50/153 ,  H01M50/169 ,  H01M4/76 ,  H01M4/66

Abstract: To provide a current collecting structure capable of reliably collecting current while maintaining a pressurized and constrained state of a coin-type all-solid-state battery. A coin-type all-solid-state battery includes a solid electrolyte layer; a pair of first electrode current collectors each including a metal porous body, the first electrode current collectors being respectively disposed on both sides of the solid electrolyte layer; a pair of second electrode current collectors each including a metal porous body, the second electrode current collectors being respectively disposed on outer sides of the first electrode current collectors; and a pair of lid members being respectively disposed on outer sides of the pair of second electrode current collectors.