公开(公告)号：US20240332740A1

公开(公告)日：2024-10-03

申请号：US18586565

申请日：2024-02-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kyohei IZUMI ,  Takashi NAKAGAWA ,  Wataru SHIMIZU ,  Takafumi NAGAI

IPC: H01M50/474 ,  H01M4/13 ,  H01M10/04

CPC classification number: H01M50/474 ,  H01M4/13 ,  H01M10/04

Abstract: A solid state battery includes an electrode laminate including a first solid electrolyte layer, a positive electrode, and a second solid electrolyte layer sequentially laminated on a negative electrode. The positive electrode includes a positive electrode tab extending therefrom. One of the first solid electrolyte layer or the second solid electrolyte layer includes a porous substrate. One other of the first solid electrolyte layer or the second solid electrolyte layer does not include a porous substrate. When the electrode laminate is viewed from above, outer peripheral ends of the first solid electrolyte layer and the second solid electrolyte layer are located outside an outer peripheral end of the positive electrode, and the first solid electrolyte layer and the second solid electrolyte layer are bonded to each other in a region not opposed to the positive electrode and the positive electrode tab.

公开(公告)号：US20240332638A1

公开(公告)日：2024-10-03

申请号：US18594280

申请日：2024-03-04

Applicant: Futaba Corporation ,  HONDA MOTOR CO., LTD.

Inventor： Tadao SUZUKI ,  Tomoki ARIHARA ,  Wataru SHIMIZU

IPC: H01M10/42 ,  H01M50/107

CPC classification number: H01M10/4214 ,  H01M50/107

Abstract: A housing container includes a plurality of exterior walls, the plurality of exterior walls forming an internal space for housing a content. A part or a whole of the plurality of exterior walls has a pressure adjusting portion formed therein. The pressure adjusting portion includes a pressure plate that is elastically deformable according to a volume change in the internal space.

公开(公告)号：US20240266590A1

公开(公告)日：2024-08-08

申请号：US18544443

申请日：2023-12-19

Applicant: HONDA MOTOR CO., LTD.

Inventor： Wataru SHIMIZU ,  Yuta URUSHIYAMA

IPC: H01M10/04 ,  H01M50/103 ,  H01M50/131 ,  H01M50/15

CPC classification number: H01M10/0468 ,  H01M50/103 ,  H01M50/131 ,  H01M50/15

Abstract: A restraint structure for a battery cell capable of uniformly pressurizing a battery cell that is a laminate, and capable of alleviating a variation in a pressurizing force due to a change in a volume of a battery. The restraint structure for a battery cell includes a mounting base, an elastic member, and a restraint member. The battery cell is a laminate having a substantially rectangular parallelepiped shape. The elastic member has surfaces respectively disposed to face five surfaces other than a mounting surface of the battery cell. The battery cell, the mounting base, and the elastic member are housed in and restrained by the restraint member. The restraint member has contact surfaces in contact with the elastic member. The contact surfaces include a contact surface that faces the elastic member in a laminating direction of the battery cell and that has a recess formed therein.

公开(公告)号：US20210226200A1

公开(公告)日：2021-07-22

申请号：US17131786

申请日：2020-12-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Noriaki KAMAYA ,  Hiroto MAEYAMA ,  Wataru SHIMIZU

IPC: H01M4/36 ,  H01M10/0562 ,  H01M4/46 ,  H01M10/052 ,  H01M10/0585

Abstract: The present invention decreases internal resistance in a solid-state battery having a LiAl system negative electrode mixture.
A solid-state battery (1) includes: a positive electrode layer (20), a negative electrode layer (30), and a solid electrolyte layer (40) disposed between the positive electrode layer (20) and negative electrode layer (30), in which the negative electrode layer (30) includes an aluminum layer (31) contacting the solid electrolyte layer (40), and an aluminum-lithium alloy layer (33).

公开(公告)号：US20200343592A1

公开(公告)日：2020-10-29

申请号：US16853720

申请日：2020-04-20

Applicant: Honda Motor Co.,Ltd.

Inventor： Soshi KAWAMURA ,  Wataru SHIMIZU ,  Ushio HARADA

IPC: H01M10/0585 ,  H01M4/04

Abstract: A method for manufacturing a solid-state battery includes: an electrode material filling step of filling a plurality of holes of a porous conductive base material with an active material contained in an electrode slurry so as to form a first electrode body, by dipping the porous conductive base material having the plurality of holes into the electrode slurry; a solid electrolyte material coating step of coating a surface with a solid electrolyte material contained in a solid-electrolyte slurry by dipping at least one of the first electrode body or a second electrode body having a polarity different from that of the first electrode body into the solid-electrolyte slurry; and a solid-state battery laminating step of obtaining a solid-state battery by laminating and pressing the first electrode body and the second electrode body.

公开(公告)号：US20200251783A1

公开(公告)日：2020-08-06

申请号：US16779671

申请日：2020-02-03

Applicant: Honda Motor Co.,Ltd.

Inventor： Wataru SHIMIZU ,  Masahiro OHTA ,  Toru SUKIGARA

IPC: H01M10/0583 ,  H01M4/78

Abstract: The secondary battery includes: a negative electrode layer sheet formed by laminating a negative electrode active material layer on each negative electrode current collector of a negative electrode current collector sheet in which the negative electrode current collectors adjacent to each other are partially connected at a bent connection portion; a positive electrode layer sheet formed by laminating a positive electrode active material layer on each positive electrode current collector of a positive electrode current collector sheet in which the positive electrode current collectors adjacent to each other are partially connected at a bent connection portion; and a solid electrolyte body disposed so as to clamp the negative electrode layer sheet from both sides. A solid battery laminate is formed by bending the negative electrode layer sheet, the positive electrode layer sheet, and the solid electrolyte body at the bent connection portions to form into a substantially zigzag shape.

公开(公告)号：US20200176823A1

公开(公告)日：2020-06-04

申请号：US16699129

申请日：2019-11-29

Applicant: Honda Motor Co.,Ltd.

Inventor： Wataru SHIMIZU ,  Masahiro OHTA ,  Toru SUKIGARA

IPC: H01M10/0585 ,  H01M10/0562 ,  H01M10/0525

Abstract: Provided is a secondary battery and a comb-type electrode. A negative electrode layer sheet formed by stacking a negative electrode active material layer on two surfaces of a negative electrode current collector and a positive electrode layer sheet formed by stacking a positive electrode active material layer on two surfaces of a positive electrode current collector are alternately stacked, and an electrolyte body is interposed between the negative electrode layer sheet and the positive electrode layer sheet adjacent in a stacking direction. Each of the negative electrode current collector and the positive electrode current collector includes a bent connecting part sandwiching a notch part and formed by bending two sides in directions opposite to each other. The bent connecting parts of the negative electrode current collectors adjacent in the stacking direction and the bent connecting parts of the positive electrode current collectors adjacent in the stacking direction are connected.