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：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：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.

公开(公告)号：US20220231332A1

公开(公告)日：2022-07-21

申请号：US17714529

申请日：2022-04-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Makoto YOSHIOKA ,  Akisuke ITO ,  Kenji OSHIMA ,  Kenichi BANDO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/36

Abstract: A solid-state battery that includes a battery element body including a positive electrode layer and a negative electrode layer stacked with respect to each other with a solid electrolyte layer interposed therebetween; and an exterior material covering a surface of the battery element body, wherein the exterior material is a sintered body containing a glassy material and at least two crystalline materials, and the glassy material and the at least two crystalline materials contain at least one common element.