公开(公告)号：US20240234806A1

公开(公告)日：2024-07-11

申请号：US18616328

申请日：2024-03-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Masato Ono ,  Keiichi Minami ,  Kazuhito Kato ,  Katsuaki Odagi

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/42

CPC classification number: H01M10/0562 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/42 ,  H01M2004/027 ,  H01M2004/028

Abstract: An all-solid-state battery includes a case, a battery element, and a restraint component. The case accommodates the battery element. The battery element includes an electrode part and a resin part. The resin part covers at least a part of a side face of the electrode part. The restraint component applies a first pressure to the electrode part. The restraint component applies a second pressure to the resin part. The ratio of the second pressure to the first pressure is from 1.5 to 18.

公开(公告)号：US20220115691A1

公开(公告)日：2022-04-14

申请号：US17561318

申请日：2021-12-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Norihiro OSE ,  Tomoya SUZUKI

IPC: H01M10/0562

Abstract: It is suppressed that an active material particle enters into or penetrates through a solid electrolyte layer when an active material layer and the solid electrolyte layer are pressed and that short circuits between a cathode and an anode occur. A method for producing an all solid-state battery includes: a first step of stacking an active material layer over at least one surface of a solid electrolyte layer to constitute a stack; and a second step of pressing the stack to constitute a compact, wherein in the first step, the active material layer contains a secondary particle of an active material, and in the second step, the secondary particle is crushed to primary particles by said pressing, the secondary particle being present in an interfacial portion between the active material layer and the solid electrolyte layer.

公开(公告)号：US20200259216A1

公开(公告)日：2020-08-13

申请号：US16781297

申请日：2020-02-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Takashi TAKEMOTO ,  Kazuo YASO

IPC: H01M10/0585 ,  H01M10/0525

Abstract: Provided is an all-solid-state battery which is configured to suppress an increase in the resistance of the all-solid-state battery and which is configured to suppress the peeling-off of the solid electrolyte layer. Disclosed is an all-solid-state battery comprising: a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein a width of the cathode layer is smaller than a width of the anode layer and a width of the solid electrolyte layer; wherein the solid electrolyte layer comprises a non-facing portion where the solid electrolyte layer does not face the cathode layer and a facing portion where the solid electrolyte layer faces the cathode layer; and wherein a binder content of the non-facing portion is larger than a binder content of the facing portion.

公开(公告)号：US20180159109A1

公开(公告)日：2018-06-07

申请号：US15819387

申请日：2017-11-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi TSUBOUCHI ,  Motoshi ISONO ,  Masaki KATO ,  Naoyuki WADA ,  Keiichi TAKAHASHI ,  Yukihiro OKADA ,  Tatsuya HASHIMOTO

IPC: H01M2/34 ,  H01M10/0525 ,  H01M10/42 ,  H01M2/12 ,  H01M4/131 ,  H01M4/136 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  H01M4/36

CPC classification number: H01M2/345 ,  H01M2/1241 ,  H01M4/131 ,  H01M4/136 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122

Abstract: A positive electrode includes first positive electrode active material particles and second positive electrode active material particles. The first positive electrode active material particles include 0.1% by mass or more and 1% by mass or less of lithium carbonate and a first lithium transition metal oxide as a remainder. The first lithium transition metal oxide is represented by LiM1(1-z1)Mnz1O2 (0.05≤z1≤0.20). The second positive electrode active material particles include 0.01% by mass or more and 0.05% by mass or less of lithium carbonate and a second lithium transition metal oxide as a remainder. The second lithium transition metal oxide is represented by LiM2(1-z2)Mnz2O2 (0.40≤z2≤0.60). An electrolytic solution includes 1% by mass or more and 5% by mass or less of an overcharging additive and a solvent and a lithium salt as a remainder.

公开(公告)号：US20200099094A1

公开(公告)日：2020-03-26

申请号：US16567149

申请日：2019-09-11

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Norihiro OSE ,  Tomoya SUZUKI

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M10/052

Abstract: It is suppressed that an active material particle enters into or penetrates through a solid electrolyte layer when an active material layer and the solid electrolyte layer are pressed and that short circuits between a cathode and an anode occur. A method for producing an all solid-state battery includes: a first step of stacking an active material layer over at least one surface of a solid electrolyte layer to constitute a stack; and a second step of pressing the stack to constitute a compact, wherein in the first step, the active material layer contains a secondary particle of an active material, and in the second step, the secondary particle is crushed to primary particles by said pressing, the secondary particle being present in an interfacial portion between the active material layer and the solid electrolyte layer.

公开(公告)号：US20240250296A1

公开(公告)日：2024-07-25

申请号：US18584473

申请日：2024-02-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Norihiro OSE ,  Tomoya SUZUKI

IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/0585

CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0068

Abstract: It is suppressed that an active material particle enters into or penetrates through a solid electrolyte layer when an active material layer and the solid electrolyte layer are pressed and that short circuits between a cathode and an anode occur. A method for producing an all solid-state battery includes: a first step of stacking an active material layer over at least one surface of a solid electrolyte layer to constitute a stack; and a second step of pressing the stack to constitute a compact, wherein in the first step, the active material layer contains a secondary particle of an active material, and in the second step, the secondary particle is crushed to primary particles by said pressing, the secondary particle being present in an interfacial portion between the active material layer and the solid electrolyte layer.

公开(公告)号：US20240088434A1

公开(公告)日：2024-03-14

申请号：US18512840

申请日：2023-11-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Motoshi ISONO ,  Masato ONO ,  Keiichi MINAMI ,  Kazuhito KATO ,  Katsuaki ODAGI

IPC: H01M10/0562 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/42

CPC classification number: H01M10/0562 ,  H01M4/134 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/42 ,  H01M2004/028

Abstract: An all-solid-state battery includes a case, a battery element, and a restraint component. The case accommodates the battery element. The battery element includes an electrode part and a resin part. The resin part covers at least a part of a side face of the electrode part. The restraint component applies a first pressure to the electrode part. The restraint component applies a second pressure to the resin part. The ratio of the second pressure to the first pressure is from 1.5 to 18.