公开(公告)号：US20250010762A1

公开(公告)日：2025-01-09

申请号：US18675712

申请日：2024-05-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsubasa MIGITA ,  Hiroshi NAGASE

IPC: B60L58/20 ,  B60L53/22 ,  B60L58/12

Abstract: Vehicles include a main battery, an auxiliary battery, charging relays, a DC/DC converter, and an ECU. The charging relay is used to perform external charging for charging the main battery by the power equipment. The DC/DC converter is configured to step down the discharging power of the main battery and to provide the stepped-down power to the auxiliary battery. ECU controls the DC/DC converter. ECU lowers the charging state of the auxiliary battery from the first state to the second state by the end of the external charging, and drives the DC/DC converter after the end of the external charging.

公开(公告)号：US20240413415A1

公开(公告)日：2024-12-12

申请号：US18637677

申请日：2024-04-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: H01M10/48 ,  B60L3/00 ,  G01N33/00 ,  H01M10/615 ,  H01M10/625 ,  H01M50/367

Abstract: A battery system includes a battery unit, a heater unit, and a sensor unit. The battery unit is accommodated in a battery case and includes sulfide-based all-solid-state batteries. The heater unit is configured to heat the battery unit. The sensor unit is configured to measure a hydrogen sulfide gas concentration inside the battery case. The heater unit is started to be driven when a measured value of the sensor unit becomes greater than the first threshold value. After starting the driving of the heater unit, when the measured value becomes greater than the second threshold value that is higher than the first threshold value, a responsive control is executed to deal with generation of the hydrogen sulfide gas from the sulfide-based all-solid-state batteries.

公开(公告)号：US20200099044A1

公开(公告)日：2020-03-26

申请号：US16576143

申请日：2019-09-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi NAGASE

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525

Abstract: To provide an anode mixture configured to, when used in an all-solid-state battery, decrease the resistance of the all-solid-state battery and increase the charging performance of the all-solid-state battery, wherein the anode mixture is an anode mixture for an all-solid-state battery comprising an anode comprising an anode mixture layer; wherein the anode mixture contains a first anode active material and a second anode active material; and wherein a difference between a reaction potential of the first anode active material with respect to lithium metal and a reaction potential of the second anode active material with respect to lithium metal, is 1.0 V or more.

公开(公告)号：US20190334209A1

公开(公告)日：2019-10-31

申请号：US16396091

申请日：2019-04-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroshi NAGASE

IPC: H01M10/0585 ,  H01M10/0562 ,  H01M4/66 ,  H01M10/48 ,  H01M10/42

Abstract: One aspect of the present invention provides a sulfide solid-state battery provided with: a negative electrode collector containing copper; a negative electrode mix layer disposed on the negative electrode collector, and containing a negative electrode active material; a positive electrode mix layer containing a positive electrode active material; a sulfide solid electrolyte layer sandwiched between the negative electrode mix layer and the positive electrode mix layer, and having a protruding portion that protrudes from a peripheral edge of the negative electrode mix layer and extends up to the negative electrode collector; and a reference electrode disposed in the protruding portion.

公开(公告)号：US20240300298A1

公开(公告)日：2024-09-12

申请号：US18583275

申请日：2024-02-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: B60H1/20 ,  B60L58/10

CPC classification number: B60H1/20 ,  B60L58/10

Abstract: A vehicle on which an all-solid-state battery is mounted includes the all-solid-state battery, and a case that accommodates the all-solid-state battery. The vehicle is configured such that, when gas is generated in the case, a blocking process is executed to separate a vehicle cabin from outside air.

公开(公告)号：US20240186546A1

公开(公告)日：2024-06-06

申请号：US18485540

申请日：2023-10-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsubasa MIGITA ,  Hiroshi NAGASE ,  Yoichi OGURA ,  Daisuke MUKAI

IPC: H01M8/0432 ,  H01M8/04537 ,  H01M8/10

CPC classification number: H01M8/0432 ,  H01M8/04544 ,  H01M8/04626 ,  H01M8/10 ,  H01M2220/20

Abstract: A vehicle 1 equipped with an all-solid-state battery system includes a battery that is an all-solid-state battery, an electric heater that heats the battery, and an ECU that controls the electric heater. When charging of the battery is resumed after a pause shorter than a predetermined time, the ECU controls the electric heater to raise a temperature of the battery after resumption of the charging to a temperature higher than a temperature of the battery before the pause of the charging.

公开(公告)号：US20230299337A1

公开(公告)日：2023-09-21

申请号：US18179745

申请日：2023-03-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Panasonic Holdings Corporation

Inventor： Hiroshi NAGASE ,  Yusuke ITO ,  Hiroki YABE ,  Izuru SASAKI

IPC: H01M10/0562 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M4/04

CPC classification number: H01M10/0562 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M4/0404 ,  H01M2004/028

Abstract: An all-solid-state battery comprises a power generation element and a restraint member. The restraint member applies a pressure of 0.5 MPa or less to the power generation element. The power generation element includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer. The solid electrolyte layer is interposed between the positive electrode layer and the negative electrode layer. The positive electrode layer includes a composite particle. The composite particle includes a positive electrode active material particle and a covering layer. The covering layer covers at least part of a surface of the positive electrode active material particle. The covering layer includes a sulfide solid electrolyte.

公开(公告)号：US20150244024A1

公开(公告)日：2015-08-27

申请号：US14710013

申请日：2015-05-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masahiro TATSUMISAGO ,  Akitoshi HAYASHI ,  Shigenori HAMA ,  Koji KAWAMOTO ,  Yasushi TSUCHIDA ,  Hiroshi NAGASE ,  Yukiyoshi UENO ,  Masato KAMIYA

IPC: H01M10/0562 ,  C01G17/00 ,  H01M10/052

CPC classification number: H01M10/0562 ,  C01B17/22 ,  C01G17/006 ,  H01B1/06 ,  H01M4/621 ,  H01M10/052 ,  H01M2300/002 ,  H01M2300/0065 ,  H01M2300/0068 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material using a raw material composition containing Li2S and sulfide of an element of the group 14 or the group 15 in the periodic table, containing substantially no cross-linking sulfur and Li2S.

Abstract translation: 本发明的主要目的是提供硫化氢生成量少的硫化物固体电解质材料。 本发明通过提供硫化物固体电解质材料来解决上述问题，所述硫化物固体电解质材料使用含有Li 2 S的原料组合物和周期表中第14族或第15族元素的硫化物，其基本上不含交联硫和Li 2 S 。