公开(公告)号：US20190198921A1

公开(公告)日：2019-06-27

申请号：US16289905

申请日：2019-03-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei Takano ,  Makoto Yoshioka ,  Akisuke Ito ,  Takeo Ishikura

IPC: H01M10/0562 ,  H01M10/0585 ,  C01G25/00

CPC classification number: H01M10/0562 ,  C01F17/00 ,  C01G25/006 ,  C01P2002/30 ,  C01P2002/50 ,  C01P2006/40 ,  C04B35/50 ,  H01B1/06 ,  H01B1/08 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0077

Abstract: A solid-state electrolyte having a garnet-type crystal structure represented by the formula (Li7−ax+yAx)La3(Zr2−yBy)O12, where A is at least one element selected from Mg, Zn, Al, Ga, and Sc, a is a valence of A, B is at least one element selected from Al, Ga, Sc, Yb, Dy, and Y, x is more than 0 and less than 1.0, y is more than 0 and less than 1.0, and 7−ax+y is more than 5.5 and less than 7.0).

公开(公告)号：US20190135644A1

公开(公告)日：2019-05-09

申请号：US16235376

申请日：2018-12-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Akisuke Ito ,  Makoto Yoshioka ,  Takeo Ishikura ,  Ryohei Takano

IPC: C01B33/32 ,  C04B35/447 ,  H01B1/08 ,  H01M10/054 ,  H01M10/0562

Abstract: A NaSICON-type solid-state electrolyte that contains Na as a conducting species, Zr, M, Si, P, and O, where M is at least one element selected from Mg, V, and Nb. The NaSICON-type solid-state electrolyte has a composition in which a molar ratio of M to Zr (M/Zr) is less than 0.2.

公开(公告)号：US20190067736A1

公开(公告)日：2019-02-28

申请号：US16121835

申请日：2018-09-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto Yoshioka ,  Akisuke Ito ,  Ryohei Takano ,  Takeo Ishikura

IPC: H01M10/0562 ,  H01M4/38 ,  H01B1/08

Abstract: A solid electrolyte having a NaSICON-type crystal structure and represented by a general formula Li1−aZr2−bMc (PO4)3. In the general formula, Li may be partially substituted with at least one selected from the group consisting of Na, K, Rb, Cs, Ag, and Ca, P may be partially substituted with at least one of B and Si, M contains at least one first element capable of stabilizing or partially stabilizing the tetragonal or cubic crystal structure of a high-temperature phase of ZrO2, −0.50≤a≤2.00, 0.01≤b≤1.90, and 0.01≤c≤1.90.

公开(公告)号：US10164287B2

公开(公告)日：2018-12-25

申请号：US14157673

申请日：2014-01-17

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Masutaka Ouchi ,  Makoto Yoshioka ,  Takeshi Hayashi

IPC: H01M6/00 ,  H01M10/04 ,  H01M10/0562 ,  H01M10/0585 ,  H01M4/04 ,  H01M6/18 ,  H01M6/40 ,  H01M10/052 ,  H01M4/02

Abstract: A method for manufacturing an all-solid battery that includes preparing a first green sheet as a green sheet for at least any one of a positive electrode layer and a negative electrode layer and a second green sheet as a green sheet for a solid electrolyte layer, stacking the first green sheet and the second green sheet to form a stacked body, and firing the stacked body with a setter placed in contact with at least one surface of the stacked body. The setter in contact with the at least one surface of the stacked body is 0.11 μmRa or more and 50.13 μmRa or less in surface roughness.

公开(公告)号：US20130244108A1

公开(公告)日：2013-09-19

申请号：US13874587

申请日：2013-05-01

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Takeshi Hayashi ,  Makoto Yoshioka ,  Masutaka Ouchi ,  Kunio Nishida

IPC: H01M10/0585

CPC classification number: H01M10/0585 ,  B32B18/00 ,  C04B2235/6584 ,  C04B2237/34 ,  C04B2237/363 ,  H01M4/0471 ,  H01M4/139 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0565 ,  H01M2300/0094 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A method of producing a total solid battery by stacking a molded body of each of a positive electrode material, a solid electrolyte material, a negative electrode material, and a collector material and firing the stacked body. The firing step includes a first firing step of firing the stacked body in an inert atmosphere and, after the first firing step, a second firing step of firing the stacked body in an atmosphere containing oxygen.

Abstract translation: 通过将正极材料，固体电解质材料，负极材料和集电体材料的成型体层叠并烧制层叠体来制造全部固体电池的方法。 烧成工序包括在惰性气氛下烧结层叠体的第一烧成工序，在第一烧成工序之后，在包含氧的气​​氛中烧结层叠体的第二烧成工序。

公开(公告)号：US11942596B2

公开(公告)日：2024-03-26

申请号：US16703141

申请日：2019-12-04

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei Takano ,  Makoto Yoshioka ,  Takeo Ishikura ,  Akisuke Ito

IPC: H01M10/052 ,  H01M4/38 ,  H01M10/0562

CPC classification number: H01M10/0562 ,  H01M4/382 ,  H01M10/052 ,  H01M2300/0071

Abstract: A solid electrolyte material that includes a composite oxide containing Li and Bi, and at least one solid electrolyte having a garnet structure, a perovskite structure, and a LISICON structure.

公开(公告)号：US11430982B2

公开(公告)日：2022-08-30

申请号：US16844014

申请日：2020-04-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto Yoshioka ,  Kenichi Bando ,  Akisuke Ito ,  Ryohei Takano

IPC: H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/58 ,  H01M10/052 ,  H01M10/0585 ,  H01M10/0562 ,  H01M10/42

Abstract: A nonpolar all-solid-state battery that includes a first electrode; a second electrode; and a solid electrolyte layer the first electrode and the second electrode. Each of the first electrode and the second electrode includes a first active material and at least one second active material. The first active material functions as both a positive electrode active material and a negative electrode active material. The first active material has a larger specific capacity when functioning as the positive electrode active material than when functioning as the negative electrode active material. In each of the first electrode and the second electrode, a ratio of the first active material to a total amount of the first and second active materials is more than 50% by mass and less than 100% by mass. A mass of each of the first and second active materials is equal between the first electrode and the second electrode.

公开(公告)号：US20220021024A1

公开(公告)日：2022-01-20

申请号：US17405717

申请日：2021-08-18

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenichi Bando ,  Makoto Yoshioka ,  Osamu Chikagawa

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/0585 ,  H01M4/80 ,  H01M4/139 ,  H01M4/485

Abstract: A solid-state battery including a solid-state battery laminate having one or more positive electrode layers, one or more negative electrode layers, and a solid electrolyte interposed therebetween. Each of the electrode layers of the one or more positive electrode layers and the one or more negative electrode layers contains an active material, and an outermost electrode layer of the solid-state battery laminate has a different active material amount with respect to a non-outermost electrode layer located on an inner side of the outermost electrode layer.

公开(公告)号：US20210203008A1

公开(公告)日：2021-07-01

申请号：US17198394

申请日：2021-03-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto Yoshioka ,  Kenichi Bando

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M50/117 ,  H01M50/204 ,  H01M50/512

Abstract: A solid-state battery including a battery element that includes one or more battery constitutional units, each battery constitutional unit including a positive electrode layer and a negative electrode layer facing each other and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; a first protective layer covering an upper surface of the battery element; and a second protective layer covering a lower surface of the battery element, wherein the first and second protective layers include an insulating substance other than resin.

公开(公告)号：US20200259213A1

公开(公告)日：2020-08-13

申请号：US16849215

申请日：2020-04-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryohei Takano ,  Makoto Yoshioka ,  Akisuke Ito

IPC: H01M10/0562 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/058

Abstract: An all-solid-state battery having a positive electrode, a negative electrode having a negative electrode active material layer, and a solid electrolyte layer between the positive electrode and the negative electrode material layer. The negative electrode active material layer contains 60% by volume or more of an oxide having a LISICON-type crystal structure. The solid electrolyte layer contains a solid electrolyte having at least one of an oxide having a garnet-type crystal structure or an oxide having a LISICON-type crystal structure.