公开(公告)号：US20210210789A1

公开(公告)日：2021-07-08

申请号：US17205237

申请日：2021-03-18

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hiroshi HORIUCHI ,  Nobuyuki IWANE ,  Masayuki IHARA

IPC: H01M10/0585 ,  H01M10/46 ,  H01M4/66 ,  H01M4/62 ,  H01M10/0525 ,  H02J7/00

Abstract: A secondary battery includes a plurality of positive electrodes having a positive electrode active material layer including a fluorine-based binder having a melting point of 166° C. or less, a plurality of negative electrodes having a negative electrode active material layer, and an electrolyte. The positive electrode active material layer and the negative electrode active material layer face each other and an edge of the positive electrode active material layer is located inside an edge of the negative electrode active material layer.

公开(公告)号：US20210175487A1

公开(公告)日：2021-06-10

申请号：US17178857

申请日：2021-02-18

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Nobuyuki IWANE ,  Hiroshi HORIUCHI

IPC: H01M4/131 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive electrode active material layer that includes a positive electrode active material, a fluorine-based binder having a melting point from 152° C. to 166° C., a conductive assistant having a specific surface area from 1000 m2/g to 1500 m2/g, and a vinylpyrrolidone-based polymer.

公开(公告)号：US20220320590A1

公开(公告)日：2022-10-06

申请号：US17848859

申请日：2022-06-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuyuki IWANE ,  Noriyuki AOKI ,  Katsunori TAKAHARA ,  Yusuke FUNADA ,  Kiyoshi KUMAGAE ,  Keisuke SHIMIZU

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

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, wherein the positive electrode layer includes a positive electrode active material in which a spacing d003 of a lattice plane (003) is 4.800 Å or more in a charged state at a positive electrode potential of 4.55 V.

公开(公告)号：US20220302506A1

公开(公告)日：2022-09-22

申请号：US17831860

申请日：2022-06-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Koichi NAKANO ,  Kiyoshi KUMAGAE ,  Nobuyuki IWANE

IPC: H01M10/0585 ,  H01M50/531 ,  H01M50/548

Abstract: A solid-state battery including a solid-state battery laminate in which a positive electrode layer, a negative electrode layer, and a solid electrolyte layer are laminated with the solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, and positive and negative external terminals are on side surfaces of the solid-state battery laminate. The positive electrode layer and the negative electrode layer each include an active material portion containing an active material , and a current collector portion having a relatively small active material density with respect to the active material portion and arranged on an edge surface of the active material portion so as to form an edge surface current collecting structure in which a current can be collected using the current collector portion on the edge surface of the active material portion.

公开(公告)号：US20210043941A1

公开(公告)日：2021-02-11

申请号：US17078934

申请日：2020-10-23

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hiroshi HORIUCHI ,  Nobuyuki IWANE

IPC: H01M4/66 ,  H01M10/0565 ,  H01M4/13

Abstract: A battery includes a positive electrode that includes a positive electrode current collector and a positive electrode active material layer provided on the positive electrode current collector and has a positive electrode current collector exposed portion at which the positive electrode current collector is exposed; a negative electrode that includes a negative electrode current collector and a negative electrode active material layer provided on the negative electrode current collector and has a negative electrode current collector exposed portion at which the negative electrode current collector is exposed; a separator provided between the positive electrode and the negative electrode; and an intermediate layer that is provided between the separator and at least one of the positive and negative electrodes and includes at least one of a fluororesin and a grain.

公开(公告)号：US20200176748A1

公开(公告)日：2020-06-04

申请号：US16733665

申请日：2020-01-03

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Natsuko KATASE ,  Nobuyuki IWANE ,  Yoshinori WAKUI ,  Takahisa ISHIMATSU ,  Masato YANO

IPC: H01M2/22 ,  H01M2/06 ,  H01M2/10 ,  H01M10/42 ,  H01M2/02

Abstract: It is an object to provide a battery and a battery module having excellent reliability.There is provided a battery including a battery element, an exterior body that covers the battery element, and a conductor, in which the conductor is disposed outside the battery element, and the conductor has a cut portion, and there is further provided a battery module including a plurality of batteries and a conductor, in which each of the batteries includes a battery element and an exterior body that covers the battery element, the conductor is disposed outside the battery element, and the conductor has a cut portion.

公开(公告)号：US20220328868A1

公开(公告)日：2022-10-13

申请号：US17842147

申请日：2022-06-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Nobuyuki IWANE ,  Koichi NAKANO ,  Yusuke FUNADA ,  Katsunori TAKAHARA ,  Kiyoshi KUMAGAE ,  Keisuke SHIMIZU

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M50/543 ,  H01M4/133 ,  H01M4/62 ,  H01M4/36

Abstract: A solid-state battery that includes: a solid-state battery laminate including at least one battery constituent unit including: a positive electrode layer, the positive electrode layer containing a conductive carbon material; a positive electrode current collecting portion arranged at an end surface of the positive electrode layer; a negative electrode layer; and a solid-state electrolyte layer interposed between the positive electrode layer and the negative electrode layer in a stacking direction thereof; a positive electrode terminal electrically connected to the positive electrode current collecting portion; and a negative electrode terminal electrically connected to the negative electrode layer.

公开(公告)号：US20200006774A1

公开(公告)日：2020-01-02

申请号：US16570716

申请日：2019-09-13

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hiroshi HORIUCHI ,  Nobuyuki IWANE

IPC: H01M4/62 ,  H01M2/16 ,  H01M4/134

Abstract: A battery includes a positive electrode; a negative electrode; a separator; and an intermediate layer. The intermediate layer is provided between the positive electrode and the separator and includes one or both of a fluororesin and a particle. The positive electrode has a positive electrode active material layer including a fluorine-based binder having a melting point of 166° C. or less, and a content of the fluorine-based binder in the positive electrode active material layer is from 0.5% by mass to 2.8% by mass.