公开(公告)号：US20240361117A1

公开(公告)日：2024-10-31

申请号：US18602107

申请日：2024-03-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki HAGIWARA ,  Hiroshi NAGASE ,  Yasumasa OGUMA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: G01B7/16 ,  G06T7/00 ,  H01M10/48

CPC classification number: G01B7/18 ,  G06T7/0002 ,  H01M10/482

Abstract: A battery system includes at least one pack in which an all-solid-state battery cell is sealed, and a sensing unit configured to sense deformation of the at least one pack due to change in internal pressure of the at least one pack.

公开(公告)号：US20240356005A1

公开(公告)日：2024-10-24

申请号：US18613712

申请日：2024-03-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryosuke FURUYA ,  Jun YOSHIDA

IPC: H01M4/134 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M4/134 ,  H01M4/386 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2300/008

Abstract: The slurry for forming negative electrode active material layer of the present disclosure contains:



a ketone as a dispersion medium; and
silicon active material particles, sulfide solid electrolyte particles, and single-wall carbon nanotubes, which are dispersed in the ketone, and
a ratio of the single-wall carbon nanotubes with respect to the ketone is 0.15% by mass or lower.

公开(公告)号：US20240343604A1

公开(公告)日：2024-10-17

申请号：US18624597

申请日：2024-04-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shohei KAWASHIMA ,  Jun YOSHIDA ,  So Yubuchi ,  Satoshi Wakasugi

IPC: C01G53/00 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/054

CPC classification number: C01G53/50 ,  H01M4/505 ,  H01M4/525 ,  H01M10/054 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2006/40 ,  H01M2004/028

Abstract: Disclosed is a method of increasing the capacity of a P2 type positive electrode active material. A method of manufacturing a positive electrode active material of the present disclosure includes obtaining a Na containing transition metal oxide having a P2 type structure, and further doping the Na containing transition metal oxide with Na.

公开(公告)号：US20240247990A1

公开(公告)日：2024-07-25

申请号：US18525937

申请日：2023-12-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hideki HAGIWARA ,  Hiroshi NAGASE ,  Yasumasa OGUMA ,  Jun YOSHIDA ,  Tsubasa MIGITA ,  Yoshihiro UCHIDA

IPC: G01L5/1627 ,  H01M50/105 ,  H01M50/211

CPC classification number: G01L5/1627 ,  H01M50/105 ,  H01M50/211 ,  H01M2300/0068

Abstract: A battery system includes a unit cell including a sulfide-based all-solid-state battery, a battery module in which a plurality of the unit cells is stacked between a pair of restraining members, an intermediate plate disposed between the stacked unit cells, a detection unit configured to detect a load applied to the intermediate plate, and an estimation unit configured to estimate generation of hydrogen sulfide in the unit cell, based on a change in load applied to the intermediate plate.

公开(公告)号：US20240014377A1

公开(公告)日：2024-01-11

申请号：US18372451

申请日：2023-09-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Jun YOSHIDA

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

CPC classification number: H01M4/134 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2004/021

Abstract: A main object of the present disclosure is to provide a car having an all solid state battery with excellent capacity durability when restraining pressure is not applied or even when low restraining pressure is applied thereto. The present disclosure achieves the object by providing an all solid state battery comprising layers in the order of a cathode layer, a solid electrolyte layer, and an anode layer; wherein the anode layer contains an anode active material including a silicon clathrate II type crystal phase; restraining pressure of 0 MPa or more and less than 5 MPa is applied to the all solid state battery in a layering direction; and a specific surface area of the anode active material is 8 m2/g or more and 17 m2/g or less.

公开(公告)号：US20230420735A1

公开(公告)日：2023-12-28

申请号：US18462729

申请日：2023-09-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Jun YOSHIDA ,  Shinya SHIOTANI ,  Masaru KUBOTA ,  Yohei SHINDO ,  Takeshi USAMI

IPC: H01M10/0562 ,  H01M4/48 ,  H01M10/44

CPC classification number: H01M10/0562 ,  H01M4/483 ,  H01M10/446 ,  H01M2004/028

Abstract: A solid-state battery having a low heat generation amount and low resistance, and a method for producing the same. The solid-state battery is a solid-state battery comprising: a cathode comprising a cathode layer that contains an oxide-based cathode active material, an anode comprising an anode layer that contains an anode active material, and a solid electrolyte layer being disposed between the cathode layer and the anode layer and containing a solid electrolyte, wherein at least any one of the cathode layer and the solid electrolyte layer contains a sulfide-based solid electrolyte, and wherein the sulfide-based solid electrolyte comprises a high oxygen concentration layer on a contact surface with the oxide-based cathode active material, the high oxygen concentration layer having a higher oxygen element concentration than other parts except the contact surface.

公开(公告)号：US20230253557A1

公开(公告)日：2023-08-10

申请号：US18301340

申请日：2023-04-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro SUZUKI ,  Jun YOSHIDA

IPC: H01M4/38 ,  H01M4/36 ,  H01M4/04

CPC classification number: H01M4/386 ,  H01M4/366 ,  H01M4/0471

Abstract: A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising at least Si and Al, including a silicon clathrate type crystal phase, and a proportion of the Al to a total of the Si and the Al is 0.1 atm % or more and 1 atm % or less.

公开(公告)号：US20210391576A1

公开(公告)日：2021-12-16

申请号：US17210746

申请日：2021-03-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Jun YOSHIDA ,  Kazuhiro SUZUKI ,  Masanori HARATA

IPC: H01M4/58 ,  H01M4/04

Abstract: A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising a silicon clathrate II type crystal phase, and having a composition represented by NaxSi136, wherein 1.98

公开(公告)号：US20210384498A1

公开(公告)日：2021-12-09

申请号：US17329480

申请日：2021-05-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro SUZUKI ,  Jun YOSHIDA

IPC: H01M4/38 ,  H01M4/04 ,  H01M4/36

Abstract: A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising at least Si and Al, including a silicon clathrate type crystal phase, and a proportion of the Al to a total of the Si and the Al is 0.1 atm % or more and 1 atm % or less.

公开(公告)号：US20200020929A1

公开(公告)日：2020-01-16

申请号：US16504210

申请日：2019-07-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Jun YOSHIDA ,  Daichi KOSAKA ,  Takamasa OTOMO ,  Tetsuya WASEDA ,  Hideyuki NAKANO

IPC: H01M4/134 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/44 ,  H01M4/131 ,  H01M4/38 ,  H01M4/62 ,  H01M4/1395

Abstract: A main object of the present disclosure is to provide a novel active material whose volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material having a composition represented by NaxMySi46, wherein M is a metal element other than Na, x and y satisfy 0