公开(公告)号：US20240154276A1

公开(公告)日：2024-05-09

申请号：US18407769

申请日：2024-01-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Kazushige NOMOTO

IPC: H01M50/581 ,  H01M10/04 ,  H01M10/613 ,  H01M10/655 ,  H01M10/6554 ,  H01M10/658 ,  H01M50/54 ,  H01M50/562 ,  H01M50/574 ,  H01M50/578 ,  H01M50/583

CPC classification number: H01M50/581 ,  H01M10/0418 ,  H01M10/044 ,  H01M10/613 ,  H01M10/655 ,  H01M10/6554 ,  H01M10/658 ,  H01M50/54 ,  H01M50/562 ,  H01M50/574 ,  H01M50/578 ,  H01M50/583 ,  H01M2200/10

Abstract: Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed. The bipolar battery of the present disclosure includes a first member, a second member, and a laminate electrode body arranged therebetween, wherein the laminate electrode body includes a first current collector constituting a lamination direction end surface, a second current collector constituting the other lamination direction end surface, at least one bipolar current collector arranged between the first current collector and the second current collector, and a plurality of power generating elements which are electrically connected in series via the bipolar current collector between the first current collector and the second current collector, the first current collector is arranged between the first member and the bipolar current collector, the second current collector is arranged between the second member and the bipolar current collector, the first current collector has a first tab, the second current collector has a second tab, an amount of heat generated by the first tab during energization of the battery is greater than an amount of heat generated by the second tab, the first member is a cooling member for cooling the first current collector, and a cooling performance of the first member is greater than a cooling performance of the second member.

公开(公告)号：US20220384895A1

公开(公告)日：2022-12-01

申请号：US17729407

申请日：2022-04-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Yuya Kumasaka ,  Shunsuke Nagata ,  Kento Masumura

IPC: H01M50/258 ,  H01M50/224 ,  H01M50/209 ,  H01M50/227 ,  H01M10/04

Abstract: A cell case includes (i) first and second metal plates constituting a first part of the cell case and placed such that the first and second metal plates are separated from each other (ii) a resin portion provided between the metal plates such that the resin portion connects the first and second metal plates. The first metal plate and the second metal plate include a first overlapped portion and a second overlapped portion, respectively, such that the first overlapped portion and the second overlapped portion overlap with each other via the resin portion. The first overlapped portion includes a hook. The second overlapped portion has an opening. The hook is formed to be caught on the opening to restrict relative displacement between the first metal plate and the second metal plate along a direction where the first metal plate and the second metal plate are separated from each other.

公开(公告)号：US20220384887A1

公开(公告)日：2022-12-01

申请号：US17752926

申请日：2022-05-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Yuya Kumasaka ,  Shunsuke Nagata ,  Kento Masumura

IPC: H01M50/209 ,  H01M50/231

Abstract: A battery case configured to accommodate one or a plurality of battery cells, and includes a metal plate portion and a resin portion. The metal plate portion is made up of a plurality of metal plates that is part of the battery case. The resin portion that is another part of the battery case connects the metal plates by being interposed between the metal plates. The metal plates include a first metal plate and a second metal plate. The first metal plate includes a first overlapping portion and the second metal plate includes a second overlapping portion, the first overlapping portion and the second overlapping portion being overlapped with each other across the resin portion. The first overlapping portion includes one or more contact protrusions protruding toward the second overlapping portion. The second overlapping portion is in direct contact with the one or more contact protrusions.

公开(公告)号：US20250038292A1

公开(公告)日：2025-01-30

申请号：US18734090

申请日：2024-06-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhito KATO ,  Masato ONO ,  Yusuke KINTSU ,  Atsushi YAMANAKA ,  Takaaki GOTO ,  Shintaro UTSUMI ,  Hiroki AWANO

IPC: H01M10/613 ,  B60L50/64 ,  H01M10/625 ,  H01M10/647 ,  H01M10/653 ,  H01M10/6551 ,  H01M10/6554 ,  H01M50/105 ,  H01M50/119 ,  H01M50/121 ,  H01M50/124 ,  H01M50/211 ,  H01M50/249

Abstract: A battery module includes a battery cell and a heat dissipation member that is in contact with a battery cell case. The battery cell includes an electrode body including plural layered structures layered one on another, each including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and the battery cell case that hermetically encloses the electrode body inside the battery cell case. The battery cell case includes at least a metal layer and a fusion resin layer disposed at the inner face side of the metal layer and has an exposed portion, at which the metal layer is exposed, at at least part of the outer face of the battery cell case. The heat dissipation member is in contact with the exposed portion.

公开(公告)号：US20250112295A1

公开(公告)日：2025-04-03

申请号：US18762926

申请日：2024-07-03

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Shintaro UTSUMI ,  Masato Ono ,  Kazuhito Kato ,  Yusuke Kintsu ,  Atsushi Yamanaka ,  Takaaki Goto ,  Hiroki Awano

IPC: H01M10/6568 ,  H01M10/613 ,  H01M10/625 ,  H01M10/63 ,  H01M10/647 ,  H01M10/6561 ,  H01M50/211

Abstract: A case constituting an outer shape of a second cooler disposed between the battery cells and containing a second fluid having a lower thermal conductivity than the first fluid therein is constituted by a buffer member capable of expanding and contracting in accordance with a flow rate of the second fluid in the case, and the control unit increases a flow rate of the second fluid to be supplied to the second cooler when the temperature of the battery cell is equal to or higher than a predetermined threshold value than when the temperature of the battery cell is lower than the threshold value.

公开(公告)号：US20250030033A1

公开(公告)日：2025-01-23

申请号：US18679925

申请日：2024-05-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masato ONO ,  Shintaro UTSUMI ,  Kazuhito KATO ,  Yusuke KINTSU ,  Atsushi YAMANAKA ,  Takaaki GOTO ,  Hiroki AWANO

IPC: H01M10/04 ,  H01M50/105 ,  H01M50/211 ,  H01M50/249

Abstract: A battery cell includes: an electrode body including plural layered structures, each including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; and a battery cell case that hermetically encloses the electrode body inside the battery cell case. At least one of the current collector in the positive electrode or the current collector in the negative electrode has, on a peripheral portion of a surface thereof, an uncoated portion at which the mix is not coated. A current collector of which the distance from the surface of the battery cell case is the greatest among current collectors each having an uncoated portion has a first uncoated portion, and the first uncoated portion extends to the outside of the battery cell case, thereby forming a first exposed portion.

公开(公告)号：US20230207993A1

公开(公告)日：2023-06-29

申请号：US18177187

申请日：2023-03-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Kazushige NOMOTO

IPC: H01M50/581 ,  H01M10/04 ,  H01M10/655 ,  H01M10/613 ,  H01M10/6554 ,  H01M50/562 ,  H01M10/658 ,  H01M50/583 ,  H01M50/578 ,  H01M50/574

CPC classification number: H01M50/581 ,  H01M10/044 ,  H01M10/0418 ,  H01M10/613 ,  H01M10/655 ,  H01M10/658 ,  H01M10/6554 ,  H01M50/562 ,  H01M50/574 ,  H01M50/578 ,  H01M50/583 ,  H01M2200/10

Abstract: Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed. The bipolar battery of the present disclosure includes a first member, a second member, and a laminate electrode body arranged therebetween, wherein the laminate electrode body includes a first current collector constituting a lamination direction end surface, a second current collector constituting the other lamination direction end surface, at least one bipolar current collector arranged between the first current collector and the second current collector, and a plurality of power generating elements which are electrically connected in series via the bipolar current collector between the first current collector and the second current collector, the first current collector is arranged between the first member and the bipolar current collector, the second current collector is arranged between the second member and the bipolar current collector, the first current collector has a first tab, the second current collector has a second tab, an amount of heat generated by the first tab during energization of the battery is greater than an amount of heat generated by the second tab, the first member is a cooling member for cooling the first current collector, and a cooling performance of the first member is greater than a cooling performance of the second member.

公开(公告)号：US20210265711A1

公开(公告)日：2021-08-26

申请号：US17134768

申请日：2020-12-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Kazushige NOMOTO

IPC: H01M50/581 ,  H01M50/54 ,  H01M10/04 ,  H01M10/613 ,  H01M10/655

Abstract: Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed. The bipolar battery of the present disclosure includes a first member, a second member, and a laminate electrode body arranged therebetween, wherein the laminate electrode body includes a first current collector constituting a lamination direction end surface, a second current collector constituting the other lamination direction end surface, at least one bipolar current collector arranged between the first current collector and the second current collector, and a plurality of power generating elements which are electrically connected in series via the bipolar current collector between the first current collector and the second current collector, the first current collector is arranged between the first member and the bipolar current collector, the second current collector is arranged between the second member and the bipolar current collector, the first current collector has a first tab, the second current collector has a second tab, an amount of heat generated by the first tab during energization of the battery is greater than an amount of heat generated by the second tab, the first member is a cooling member for cooling the first current collector, and a cooling performance of the first member is greater than a cooling performance of the second member.

公开(公告)号：US20160363033A1

公开(公告)日：2016-12-15

申请号：US15175380

申请日：2016-06-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takeshi KITAYAMA ,  Shintaro UTSUMI

IPC: F01P3/02

CPC classification number: F01P3/02 ,  F01P2003/021 ,  F01P2003/027 ,  F02D35/023 ,  F02D35/027 ,  F02D41/22 ,  F02D41/3094

Abstract: To provide a controller that can slow down progression of deterioration of an internal combustion engine caused by repeated occurrence of LSPI. An index value of the degree of deterioration of the internal combustion engine caused by LSPI is calculated. If the index value exceeds a first threshold, when the temperature of cooling water that cools a part of the peripheral wall of a cylinder that is close to a combustion chamber is lower than a threshold temperature, and the internal combustion engine is running in a determined operational region set in a low speed and high load region, the proportion of fuel injection by an in-cylinder injection valve is reduced to increase the proportion of fuel injection by a port injection valve compared with before the index value exceeds the first threshold, thereby suppressing occurrence of LSPI.

Abstract translation: 提供一种可以减缓由于重复出现LSPI引起的内燃机劣化进程的控制器。 计算由LSPI引起的内燃机的劣化程度的指标值。 如果指标值超过第一阈值，则冷却接近燃烧室的气缸的周壁的一部分的冷却水的温度低于阈值温度，并且内燃机以确定的速度运行 操作区域设定在低速高负荷区域中，通过缸内喷射阀的燃料喷射比例减小，以增加与指示值超过第一阈值之前的端口喷射阀的燃料喷射比例，由此 抑制LSPI的发生。

公开(公告)号：US20230261275A1

公开(公告)日：2023-08-17

申请号：US18146711

申请日：2022-12-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Isao TAKAHASHI ,  Kenichi KOHASHI ,  Tomohiro SEGAWA ,  Shunsuke TAKAHASHI ,  Koichi UENO ,  Shunsuke NAGATA ,  Tatsuhiko ADACHI ,  Hitoshi NADA ,  Hiroki OHTSUBO

IPC: H01M10/613 ,  H01M50/204 ,  H01M50/224 ,  H01M10/6563 ,  H01M50/262

CPC classification number: H01M10/613 ,  H01M50/204 ,  H01M50/224 ,  H01M10/6563 ,  H01M50/262 ,  H01M2220/20

Abstract: A battery pack case, including: a battery cell housing part made of metal, the battery cell housing part being configured to accommodate, from one side in a second direction, a battery cell in a state in which a plurality of the battery cells are stacked in a first direction perpendicularly intersecting the second direction and are compressed in the first direction, and the battery cell housing part being configured to support a restoring force of the battery cell; and a flow path forming part made of resin, the flow path forming part being provided integrally with the battery cell housing part, the flow path forming part being disposed at another side, in the second direction, of the battery cell, and the flow path forming part configuring a part of a cooling air flow path part through which battery cell cooling air flows.