公开(公告)号：US20250070237A1

公开(公告)日：2025-02-27

申请号：US18944177

申请日：2024-11-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yusuke TAKARA ,  Ryohei TAKANO

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A solid electrolyte ceramic having a chemical composition represented by a specific general formula, and further including one or more transition metal elements selected from Co, Ni, Mn, and Fe, and having a garnet-type crystal structure in which a content X of Li and a content Y of D1 representing one or more elements selected from Ta, Nb, and Bi are each within specific ranges.

公开(公告)号：US20250070236A1

公开(公告)日：2025-02-27

申请号：US18944147

申请日：2024-11-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yusuke TAKARA ,  Ryohei TAKANO

IPC: H01M10/0562 ,  C04B35/488 ,  H01M10/0525 ,  H01M10/0585

Abstract: A solid electrolyte ceramic having a chemical composition represented by: AαBβDγOω wherein A represents one or more of Li, Ga, Al, Mg, Zn, and Sc, and A includes at least Li; B represents one or more of La, Ca, Sr, Ba, and lanthanoid elements, and B includes at least La; and D represents one or more of transition elements capable of being six-coordinate with oxygen and elements belonging to Groups 12 to 15; and one or more of Co, Ni, Mn, and Fe, the solid electrolyte ceramic having a garnet-type crystal structure where: 139≤Y

公开(公告)号：US20230282878A1

公开(公告)日：2023-09-07

申请号：US18318154

申请日：2023-05-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yusuke TAKARA ,  Ryohei TAKANO

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0071

Abstract: A solid electrolyte ceramic that has a garnet-type crystal structure, and contains: at least Li (lithium), La (lanthanum), and O (oxygen); and one or more transition metal elements selected from the group consisting of Co (cobalt), Ni (nickel), Mn (manganese), and Fe (iron), wherein, when a content of La and a total content of the one or more transition metal elements are denoted respectively by X (mol %) and Y (mol %), the solid electrolyte ceramic satisfies any one of the following relational expressions (1) to (3): (1) 0.01≤Y≤6.0 in the range of 147.5

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：US20230402606A1

公开(公告)日：2023-12-14

申请号：US18454978

申请日：2023-08-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO

IPC: H01M4/62 ,  H01M10/0585 ,  H01M4/485 ,  H01M10/0562 ,  H01M10/0525

CPC classification number: H01M4/62 ,  H01M10/0585 ,  H01M4/485 ,  H01M10/0562 ,  H01M10/0525 ,  H01M2004/027

Abstract: A solid-state battery including a positive electrode layer; a negative electrode layer; and a solid-state electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the negative electrode layer includes: a negative electrode active material containing Li, M, and O, wherein M is one or more elements selected from the group consisting of W, Mo, Ta, and Zr, and a molar ratio (Li/M) of a Li content to a M content is more than 2.0; and a garnet-type solid-state electrolyte.

公开(公告)号：US20230291007A1

公开(公告)日：2023-09-14

申请号：US18318136

申请日：2023-05-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yusuke TAKARA ,  Ryohei TAKANO

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0071

Abstract: A solid electrolyte ceramic having a garnet-type crystal structure, the solid electrolyte ceramic containing at least Li, La, and O; and one or more transition metal elements selected from the group consisting of Co, Ni, Mn, and Fe, in which a content X (mol %) of one or more elements D selected from the group consisting of a transition element capable of providing six-coordination with oxygen and an element belonging to Groups 12 to 15 and a total content Y (mol %) of the transition metal elements satisfy at least one of three specific relational expressions.

公开(公告)号：US20230006200A1

公开(公告)日：2023-01-05

申请号：US17900554

申请日：2022-08-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO ,  Yoshinobu KIMURA

IPC: H01M4/48 ,  H01M4/62

Abstract: A solid-state battery that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, where the negative electrode layer includes a conductive additive containing a metal material having an elongated shape in a section view at 7% to 28% in area ratio with respect to the negative electrode layer.

公开(公告)号：US20240290964A1

公开(公告)日：2024-08-29

申请号：US18649003

申请日：2024-04-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO

IPC: H01M4/485 ,  C01G31/00 ,  H01M4/02 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585

CPC classification number: H01M4/485 ,  C01G31/00 ,  C01G31/006 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  C01P2002/54 ,  C01P2006/40 ,  H01M2004/027 ,  H01M2300/0071

Abstract: A negative electrode active material having a β-LVO-type crystal structure, in which a part of the V element of the β-LVO-type crystal structure is substituted with one or more elements capable of having a tetracoordinate structure, and preferably, the one or more elements capable of having the tetracoordinate structure are one or more elements selected from Zn, Al, Ga, Si, Ge, P, and Ti.

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：US20230318031A1

公开(公告)日：2023-10-05

申请号：US18332352

申请日：2023-06-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei TAKANO

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/48

CPC classification number: H01M10/0562 ,  H01M4/0407 ,  H01M10/0525 ,  H01M4/48 ,  H01M2004/027

Abstract: A solid-state battery that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, in which the positive electrode layer contains a positive electrode active material and an oxide having a garnet-type crystal structure, and a first Li concentration in an interface vicinity with the positive electrode active material in the oxide is lower than a second Li concentration in a particle interior of the oxide.