公开(公告)号：US20200290426A1

公开(公告)日：2020-09-17

申请号：US16816265

申请日：2020-03-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hidefumi AIKAWA ,  Manabu ORIHASHI ,  Yoshio HASEGAWA ,  Takashi OGAWA ,  Yuji MIYOSHI ,  Kunihiko HAYASHI

IPC: B60H1/00 ,  B60H1/22

Abstract: A vehicle-mounted temperature controller includes a low temperature circuit and a refrigeration circuit. The low temperature circuit has a heat generating equipment heat exchanger exchanging heat with heat generating equipment, a radiator, a first heat exchanger, and a three-way valve. The refrigeration circuit has a second heat exchanger discharging heat from the refrigerant to a high temperature circuit to make the refrigerant condense, and the first heat exchanger making the refrigerant absorb heat from the cooling water to make the refrigerant evaporate. The low temperature circuit includes a first partial circuit through which the cooling water flows through the radiator and the first heat exchanger, and a second partial circuit through which the cooling water flows through the heat generating equipment heat exchanger without passing through the radiator and the first heat exchanger. The cooling water circulates simultaneously and separately at these first partial circuit and second partial circuit.

公开(公告)号：US20190329644A1

公开(公告)日：2019-10-31

申请号：US16361210

申请日：2019-03-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoichi OGURA ,  Kunihiko HAYASHI ,  Masatoshi YANO ,  Yuji MIYOSHI ,  Takuya HIRAI ,  Tomohiro SHINAGAWA ,  Ryo MICHIKAWAUCHI ,  Hidefumi AIKAWA ,  Yu OFUNE

IPC: B60K11/02 ,  B60K1/00 ,  B60K6/22

Abstract: A cooling apparatus of a vehicle driving system for driving a vehicle according to the invention activates a heat pump to cool a hybrid system by cooling medium and flows an engine cooling water in an engine water circulation passage through a condenser to cool the cooling medium by the engine cooling water at the condenser when an engine water circulation condition is satisfied. The engine water circulation condition is a condition that a heat pump activation condition is satisfied, and an engine cooling condition is not satisfied. The heat pump activation condition is a condition that a process of cooling the hybrid system by the cooling medium of the heat pump is requested. The engine cooling condition is a condition that a process of cooling an internal combustion engine by the engine cooling water is requested.

公开(公告)号：US20190280270A1

公开(公告)日：2019-09-12

申请号：US16292930

申请日：2019-03-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kunihiko HAYASHI ,  Ryuta Sugiura ,  Hiroto Asano ,  Tsuyoshi Sasaki ,  Chikaaki Okuda

IPC: H01M2/16

Abstract: A battery includes at least an electrode array and an electrolyte solution. The electrolyte solution contains at least a solvent and a supporting salt. The electrode array includes at least a positive electrode, a porous insulating layer, and a negative electrode. The porous insulating layer is interposed between the positive electrode and the negative electrode. The porous insulating layer contains at least a group of inorganic nanoparticles and a group of polymer particles. Each inorganic nanoparticle in the group of inorganic nanoparticles is a dielectric. Each inorganic nanoparticle in the group of inorganic nanoparticles is in contact with the electrolyte solution.

公开(公告)号：US20170263918A1

公开(公告)日：2017-09-14

申请号：US15454574

申请日：2017-03-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomoyuki UEZONO ,  Tomoya MESUDA ,  Kunihiko HAYASHI

IPC: H01M4/136 ,  H01M4/04 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/58

CPC classification number: H01M4/136 ,  B05D5/12 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/5825 ,  H01M4/62 ,  H01M4/623 ,  H01M10/0525

Abstract: A manufacturing method of a lithium ion secondary battery includes: forming a first mixture by mixing powder of a first electrode material, which is one of the active material and the conductive material, with powder of trilithium phosphate; forming a second mixture by mixing the first mixture with powder of a second electrode material which is the other one of the active material and the conductive material; forming a wet granulated body by mixing the second mixture with the binder and a solvent; and forming the active material layer by attaching the wet granulated body to the surface of the current collector foil.

公开(公告)号：US20170237062A1

公开(公告)日：2017-08-17

申请号：US15432685

申请日：2017-02-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kunihiko HAYASHI ,  Tomoyuki UEZONO

IPC: H01M4/04 ,  B29C43/24 ,  H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/66

CPC classification number: H01M4/0435 ,  B29C43/24 ,  B29C43/28 ,  B29K2027/16 ,  B29K2505/10 ,  B29K2507/04 ,  B29K2995/0005 ,  B29L2031/3468 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/587 ,  H01M4/623 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/027

Abstract: An electrode plate is produced by a wet granule forming process and a film forming process. In the wet granule forming process, wet granules are formed by mixing electrode mixture materials including at least an active material and a binder with a solvent. In the film forming process, a sheet-shaped electrode mixture layer is formed by causing the wet granules to pass through a gap between a pair of rolls so as to be rolled, and the electrode mixture layer is adhered onto a current collector foil. In the wet granule forming process, a powder of copper having an average particle size of 100 nm or smaller is used as one of the electrode mixture materials, and the amount of the powder of copper added in a range of 0.05 wt % to 2.00 wt % with respect to the total weight of the electrode mixture materials.

公开(公告)号：US20210257673A1

公开(公告)日：2021-08-19

申请号：US17240208

申请日：2021-04-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kunihiko HAYASHI

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M10/04 ,  H01M50/40 ,  H01M50/411 ,  H01M50/449

Abstract: The present invention provides a technology that allows supplying stably a nonaqueous electrolyte secondary battery having a high capacity retention rate and being excellent in resistance to deterioration. The nonaqueous electrolyte secondary battery disclosed herein is provided with a wound electrode body resulting from winding a stack 10 having a stacking of a positive electrode 50 and a negative electrode 60 across separators 70. The positive electrode 50 has a foil-shaped positive electrode collector 52 and a positive electrode mix layer 54. Each separator 70 has a resin substrate layer 72 and a heat resistance layer 74. In the nonaqueous electrolyte secondary battery disclosed herein, the peel strength of a boundary between the resin substrate layer and the heat resistance layer is 16 N/m or more and 155 N/m or less, and the density of the positive electrode mix layer is 2.3 g/cc or more and 2.6 g/cc or less. In this the nonaqueous electrolyte secondary battery, sufficient flexibility of the stack 10 as a whole can be secured even when using high-peel strength separators 70 in order to increase resistance to deterioration. Drops in production efficiency can be suitably suppressed as a result.

公开(公告)号：US20190291710A1

公开(公告)日：2019-09-26

申请号：US16283825

申请日：2019-02-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoichi OGURA ,  Kunihiko HAYASHI ,  Yuji MIYOSHI ,  Masatoshi YANO ,  Yu OFUNE

IPC: B60W20/00 ,  B60K11/02 ,  B60K6/40 ,  B60L58/26 ,  B60L58/27 ,  B60K6/28 ,  B60K6/26 ,  B60K6/24 ,  F01P3/20

Abstract: A temperature control apparatus of a vehicle according to the invention stops activating a heat pump and supplies heat exchanging liquid from an engine passage to a battery passage when a warming of the battery is requested and a temperature of the heat exchanging liquid flowing out of the engine passage is equal to or lower than a permitted upper limit temperature. On the other hand, the apparatus activates the heat pump to cool the heat exchanging liquid and supplies the cooled heat exchanging liquid from the engine passage to the battery passage when the warming of the battery is requested and the temperature of the heat exchanging liquid flowing out of the engine passage is higher than the permitted upper limit temperature.

公开(公告)号：US20190214621A1

公开(公告)日：2019-07-11

申请号：US16241344

申请日：2019-01-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kunihiko HAYASHI

IPC: H01M2/12 ,  H01M10/0525 ,  H01M10/0587 ,  H01M4/131 ,  H01M4/133 ,  H01M2/16

Abstract: The present invention provides a nonaqueous electrolyte secondary battery having high safety to reliably prevent the progress of successive heat generation when battery temperature rises caused by abnormalities such as internal short-circuits. The nonaqueous electrolyte secondary battery disclosed herein is provided with an electrode body 20 in which a sheet-shaped positive electrode 50 and a sheet-shaped negative electrode 60 oppose each other across separators 70. In the nonaqueous electrolyte secondary battery disclosed herein, the peel strength of a boundary A between each separator 70 and a positive electrode mix layer 54 is greater than the peel strength of a boundary B between the positive electrode mix layer 54 and a positive electrode collector 52. As a result, the progress of successive heat generation derived from an increase in reaction heat can be prevented by causing the positive electrode mix layer 54 to peel off the positive electrode collector 52 accompanying thermal deformation of the separators 70 when battery temperature rises for instance due to an internal short-circuit.

公开(公告)号：US20240190212A1

公开(公告)日：2024-06-13

申请号：US18385432

申请日：2023-10-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke MUKAI ,  Kunihiko HAYASHI

IPC: B60H1/00

CPC classification number: B60H1/00899

Abstract: A thermal management system includes a first channel through which a first refrigerant flows so as to cool a power storage device mounted on a vehicle, a second channel through which a second refrigerant flows so as to cool a drive device that causes the vehicle to travel, a third channel through which a third refrigerant that is cooled by a refrigeration cycle flows, and a heat exchanger connected to the first channel, the second channel, and the third channel. The first channel, the second channel, and the third channel are provided independently of each other. The heat exchanger is configured to mutually exchange heat among the first refrigerant, the second refrigerant, and the third refrigerant.

公开(公告)号：US20200161711A1

公开(公告)日：2020-05-21

申请号：US16590658

申请日：2019-10-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  PRIMEARTH EV ENERGY CO., LTD.

Inventor： Kunihiko HAYASHI ,  Shun OKUDA

IPC: H01M10/0587 ,  H01M10/0583 ,  H01M4/70 ,  H01M4/04

Abstract: Provided is a manufacturing method of a compacted strip-shaped electrode plate including: an undried layer forming step of forming, on a current collector foil, a strip-shaped undried active material layer by rolling out a particle aggregate; a drying step of drying the undried active material layer to form an active material layer; and a pressing step of pressing the active material layer by rollers to compact the active material layer. The particle aggregate is a mixed particle aggregate in which first wet particles manufactured with the content ratio of conductive particles to the total solid content set to W1 and second wet particles manufactured with the content ratio of conductive particles to the total solid content set to W2, W2 being higher than W1, are mixed together.