公开(公告)号：US20220231389A1

公开(公告)日：2022-07-21

申请号：US17716235

申请日：2022-04-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukio MIYAKI ,  Makoto YOSHIOKA

IPC: H01M50/562 ,  H01M10/0525 ,  H01M10/054 ,  H01M50/545 ,  H01M50/548

Abstract: A solid-state battery that includes: a solid battery laminate including a battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte interposed at least between the positive electrode layer and the negative electrode layer; a positive-electrode-side external electrode electrically connected to the positive electrode layer, the positive-electrode-side external electrode including at least one element selected from the group consisting of Cu, Ag, Ni, Ti, Cr, Pt, and Pd; and a negative-electrode-side external electrode electrically connected to the negative electrode layer.

公开(公告)号：US20230019426A1

公开(公告)日：2023-01-19

申请号：US17952590

申请日：2022-09-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenji OSHIMA ,  Makoto YOSHIOKA

IPC: H01M50/593 ,  H01M50/586 ,  H01M10/0525 ,  H01M10/0585

Abstract: A solid-state battery that includes at least one battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, wherein each of the positive electrode layer and the negative electrode layer includes a side part having a terminal connection part and a terminal non-connection part; and an insulating part or a solid electrolyte part surrounding at least a part of the terminal non-connection part of at least one of the positive electrode layer and the negative electrode layer in a planar view of the at least one battery constituent unit such that the insulating part or the solid electrolyte part is in direct contact with the terminal non-connection part in a contact region and out of direct contact with the terminal non-connection part in a non-contact region.

公开(公告)号：US20220320503A1

公开(公告)日：2022-10-06

申请号：US17841144

申请日：2022-06-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO ,  Makoto YOSHIOKA ,  Akisuke ITO ,  Takeo ISHIKURA

IPC: H01M4/36 ,  H01M10/0562

Abstract: A solid-state battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. The negative electrode layer contains a negative electrode active material in which a molar ratio of Li to V is 2.0 or more, the solid electrolyte layer contains a solid electrolyte having a lithium super ionic conductor structure and containing at least V, and a ratio y of V in the solid electrolyte changes by a change amount of 0.20 or more in a thickness direction of the solid electrolyte layer.

公开(公告)号：US20220285682A1

公开(公告)日：2022-09-08

申请号：US17664323

申请日：2022-05-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto YOSHIOKA ,  Kenji OSHIMA

IPC: H01M4/58 ,  H01M4/04 ,  H01M10/052

Abstract: A solid-state battery having two or more stacked battery elements, each battery element including one or more battery constituent units in which a positive electrode layer and a negative electrode layer oppose each other with a solid electrolyte layer between the positive electrode layer and the negative electrode layer; and an insulating layer interposed between adjacent battery elements of the two or more stacked battery elements, wherein at least one end portion of the insulating layer has a thickness greater than a thickness of a central portion of the insulating layer in a sectional view thereof.

公开(公告)号：US20240250298A1

公开(公告)日：2024-07-25

申请号：US18592805

申请日：2024-03-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO ,  Makoto YOSHIOKA ,  Akisuke ITO ,  Takeo ISHIKURA

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/38 ,  H01M4/46 ,  H01M50/431 ,  H01M50/434

CPC classification number: H01M10/0562 ,  H01M4/382 ,  H01M4/463 ,  H01M4/466 ,  H01M50/431 ,  H01M50/434 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0068 ,  H01M2300/0071 ,  H01M2300/0091

Abstract: A solid electrolyte that includes a lithium ion conductive material having a garnet-type structure, a lithium ion conductive material having a LISICON-type structure, and a compound containing Li and B.

公开(公告)号：US20220352548A1

公开(公告)日：2022-11-03

申请号：US17864849

申请日：2022-07-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto YOSHIOKA ,  Ryohei TAKANO

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M10/0525 ,  C01B25/45

Abstract: A solid state battery that includes at least one battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, wherein at least the solid electrolyte layer includes a plurality of solid electrolyte particles having a portion in which a constituent ratio of a transition metal element to all metal elements, excluding lithium, is 0.0% to 15%.

公开(公告)号：US20220181705A1

公开(公告)日：2022-06-09

申请号：US17652020

申请日：2022-02-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto YOSHIOKA

IPC: H01M10/0585 ,  H01M10/0562

Abstract: A solid-state battery that includes an electrode stacked body including a plurality of electrode layers alternately stacked with a solid electrolyte layer interposed therebetween. In a sectional view of the electrode stacked body, at least one of opposed end surfaces of each of the electrode layers is spaced from a respective end surface of the electrode stacked body, and a first clearance from the end surface of an uppermost electrode layer to the respective end surface of the electrode stacked body in an upper portion and from the end surface of a lowermost electrode layer to the respective end surface of the electrode stacked body in a lower portion is larger than a second clearance from the end surface of a central electrode layer to the respective end surface of the electrode stacked body in a central portion in the stacking direction of the electrode stacked body.

公开(公告)号：US20230261294A1

公开(公告)日：2023-08-17

申请号：US18308094

申请日：2023-04-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masayuki KOUZU ,  Kenji OSHIMA ,  Makoto YOSHIOKA

IPC: H01M50/157 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M50/157 ,  H01M10/0525 ,  H01M10/0562

Abstract: A solid state battery that includes: a solid state battery laminate including at least one battery constituent unit, the at least one battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer; a first external terminal on a first side surface of the solid state battery laminate; a second external terminal on a second side surface of the solid state battery laminate, the second side surface facing the first side surface across the solid state battery laminate; and an exterior member covering the solid state battery laminate, the exterior member including one or more pores on an inner side of the exterior member adjacent to the solid state battery laminate.

公开(公告)号：US20220336854A1

公开(公告)日：2022-10-20

申请号：US17850284

申请日：2022-06-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO ,  Makoto YOSHIOKA ,  Takeo ISHIKURA ,  Akisuke ITO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/04

Abstract: A solid-state battery that includes a negative electrode layer and a solid electrolyte layer. The negative electrode layer contains a negative electrode active material in which a molar ratio of Li to vanadium (V) is 2.0 or more, the solid electrolyte layer contains a solid electrolyte having a lithium super ionic conductor (LISICON)-type structure and containing at least V, and the solid electrolyte contained in the solid electrolyte layer has an average chemical composition represented by (Li[3−ax+(5−b)(1−y)]Ax)(VyB1-y)O4.

公开(公告)号：US20220336807A1

公开(公告)日：2022-10-20

申请号：US17857378

申请日：2022-07-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO ,  Makoto YOSHIOKA ,  Takeo ISHIKURA ,  Akisuke ITO

IPC: H01M4/525 ,  H01M10/0562

Abstract: A solid-state battery including a positive electrode layer that includes a positive electrode active material having a layered rock salt-type structure and including a Li transition metal oxide containing at least one element selected from the group consisting of Co, Ni and Mn, and a solid electrolyte having a LISICON-type structure; and the positive electrode active material has an average particle size of 4 μm or less.