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1. 发明授权

US10741819B2 Electricity storage device and method for manufacturing electricity storage device 有权
公开(公告)号：US10741819B2
公开(公告)日：2020-08-11
申请号：US15559531
申请日：2016-02-25
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Takayuki Hirose , Motoaki Okuda , Hiroyasu Nishihara , Kojiro Tamaru
IPC分类号： H01M2/26 , H01M10/04 , H01M10/0585 , H01G11/74 , H01G11/82 , H01M4/04 , H01G11/76 , H01M10/052 , H01M10/0525 , H01M10/0587
摘要： A tab bundle has a first bent portion, which is at a first end in the stacking direction L of an electrode assembly in a laminated state and is bent toward a second end in the stacking direction L of the electrode assembly, and an extended portion, which protrudes from the first bent portion in the stacking direction L. The tab bundle is electrically connected to a conductive member by means of a conduction part, which is located in the extended portion. The conductive member includes: a fixed piece, which is fixed to the inner surface of a lid member and located between the extended portion and the lid member, and a connecting piece, which intersects the fixed piece and protrudes toward the electrode assembly. The tab bundle is electrically connected to the connecting piece by means of the conduction part, which is located in the extended portion.

2. 发明授权

US10158101B2 Power storage device 有权
公开(公告)号：US10158101B2
公开(公告)日：2018-12-18
申请号：US14409055
申请日：2013-05-20
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Atsushi Minagata , Motoaki Okuda , Masami Tomioka
IPC分类号： H01M2/02 , H01M2/18 , H01M10/04 , H01M10/0585 , H01M2/30 , H01M2/26
摘要： A power storage device includes an electrode assembly, a case that houses the electrode assembly, and an insulating sheet, which insulates the electrode assembly and the case from each other. The electrode assembly has a first end face, which is orthogonal to the stacking direction, two primary faces, which are located on both sides in the stacking direction, and a tab, which extends on the first end face in the direction orthogonal to the stacking direction. The insulating sheet has a folded box shape, and further has two primary face covering portions, which respectively cover the primary faces of the electrode assembly, and non-primary-face covering portions, which cover the first end face of the electrode assembly and faces other than the primary faces thereof and are continuous with the primary face covering portions. The non-primary face covering portions overlap at least partially with each other.

3. 发明授权

US10147919B2 Power storage apparatus 有权
公开(公告)号：US10147919B2
公开(公告)日：2018-12-04
申请号：US15528834
申请日：2015-11-04
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Takayuki Hirose , Motoaki Okuda , Shinji Suzuki
IPC分类号： H01M2/10 , H01M10/0585 , H01G11/82 , H01M2/18 , H01M2/14 , H01G11/24 , H01G11/52 , H01G11/74 , H01G11/78 , H01M10/0525 , H01M10/04
摘要： A power storage apparatus includes an electrode assembly and a case for accommodating the electrode assembly. The power storage apparatus has a covering member that is arranged between the case and the electrode assembly to cover at least part of the electrode assembly. The covering member has an extending portion that extends in the protruding direction of the electrode terminals from one of the edges of the electrode assembly that is opposed to the electrode terminals. The coefficient of friction between the covering member and the electrode assembly is greater than the coefficient of friction between the case and the covering member.

4. 发明授权

US09685650B2 Electric storage device including current interruption device 有权
公开(公告)号：US09685650B2
公开(公告)日：2017-06-20
申请号：US15269002
申请日：2016-09-19
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Atsushi Minagata , Motoaki Okuda , Hiroyasu Nishihara
IPC分类号： H01M2/34 , H01M2/22
CPC分类号： H01M2/345 , H01M2/22 , H01M2200/20
摘要： An electric storage device comprises the current interruption device which includes a deformable plate electrically connected to a first conductive member and a second conductive member to constitute part of a conductive path. The deformable plate deforms to interrupt the conductive path, when a pressure inside the casing rises. The first conductive member, the second conductive member, and the current interruption device are disposed between the terminal attachment wall and the electrode assembly. The first conductive member extends along the terminal attachment wall to connect the tab and the current interruption device. The second conductive member is connected to the current interruption device at a location that is farther from the terminal attachment wall than a connection between the first conductive member and the current interruption device, and extends along the terminal attachment wall to connect the current interruption device and the electrode terminal.

5. 发明授权

US09431645B2 Electricity storage device and electricity storage module 有权
标题翻译：蓄电装置和蓄电模块
公开(公告)号：US09431645B2
公开(公告)日：2016-08-30
申请号：US14429039
申请日：2013-09-23
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Atsushi Minagata , Motoaki Okuda
IPC分类号： H01M2/30 , H01M2/06 , H01M2/20 , H01M2/02
CPC分类号： H01M2/307 , H01M2/0237 , H01M2/06 , H01M2/202 , H01M2/30 , H01M2220/20
摘要： An electricity storage device includes a case, an electrode assembly housed in the case, and a positive electrode (negative electrode) terminal sending and receiving electricity to and from the electrode assembly. The positive electrode (negative electrode) terminal includes a cylindrical part having a part projecting outside the case. The outer peripheral surface of the cylindrical part has a male screw with which a nut for fastening the positive electrode (negative electrode) terminal to the case is threadedly engaged from the outside of the case. The inner peripheral surface of the cylindrical part has a female screw having a screw direction opposite the male screw.
摘要翻译：电气存储装置包括壳体，容纳在壳体中的电极组件以及向电极组件发送和接收电力的正极（负极）端子。正极（负极）端子包括具有突出在壳体外部的部分的圆柱形部分。圆筒部的外周面具有外螺纹，用于将正极（负极）端子紧固到壳体的螺母从外壳螺纹接合。圆筒部的内周面具有与螺钉相反的螺纹方向的内螺纹。

6. 发明申请

US20150207124A1 ELECTRIC STORAGE DEVICE 有权
标题翻译：电力储存装置
公开(公告)号：US20150207124A1
公开(公告)日：2015-07-23
申请号：US14419112
申请日：2013-07-16
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Atsushi Minagata , Motoaki Okuda , Hiroyasu Nishihara , Takayuki Kato
IPC分类号： H01M2/18 , H01M2/26 , H01M2/34 , H01M10/0585 , H01M2/16 , H01M2/30
CPC分类号： H01M2/18 , H01G11/16 , H01G11/52 , H01G11/66 , H01M2/1229 , H01M2/1247 , H01M2/1673 , H01M2/266 , H01M2/30 , H01M2/34 , H01M2/345 , H01M10/0525 , H01M10/0585 , H01M10/0587 , H01M10/4235 , H01M2200/00 , H01M2200/20 , Y02E60/13
摘要： The electric storage device disclosed herein is a stacked type electric storage device. The electric storage device includes a separator insulating a first electrode from a second electrode. The electric storage device includes a first conductive path from a first electrode terminal to the first electrode, a second conductive path from a second electrode terminal to the second electrode, and a current interruption device disposed between the second electrode terminal and the second electrode, the current interruption device being configured to interrupt the second conductive path. The separator includes a first surface part covering the one surface of the first electrode, a second surface part covering the other surface of the first electrode, and a connection part connected to both the first and second surface parts. The connection part is disposed between the current interruption device and an end of the first electrode on a current interruption device side.
摘要翻译：这里公开的蓄电装置是堆叠式蓄电装置。蓄电装置包括使第一电极与第二电极绝缘的隔板。蓄电装置包括从第一电极端子到第一电极的第一导电路径，从第二电极端子到第二电极的第二导电路径，以及设置在第二电极端子与第二电极之间的电流中断装置，电流中断装置被配置为中断第二导电路径。隔板包括覆盖第一电极的一个表面的第一表面部分，覆盖第一电极的另一个表面的第二表面部分和连接到第一和第二表面部分的连接部分。连接部设置在电流中断装置与电流中断装置侧的第一电极的端部之间。

7. 发明申请

US20150099154A1 ELECTRIC STORAGE DEVICE AND RECHARGEABLE BATTERY 有权
标题翻译：电力储存装置和可充电电池
公开(公告)号：US20150099154A1
公开(公告)日：2015-04-09
申请号：US14391201
申请日：2013-04-11
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Motoaki Okuda , Atsushi Minagata , Hiroyasu Nishihara
IPC分类号： H01M2/18 , H01M2/02
CPC分类号： H01M2/18 , H01M2/0202 , H01M2/0237 , H01M2/1673 , H01M10/0413 , H01M10/0436
摘要： The electric storage device is provided with a case body and an electrode assembly accommodated in the case body. The electrode assembly includes positive and negative electrode sheets each having an active material layer. The case body includes at least one primary inner wall surface, at least one secondary inner wall surface, and corner surfaces. A plane that includes the boundary line between a primary inner wall surface and the corresponding corner surface and faces the corresponding secondary inner wall surface is defined as an imaginary boundary plane. An edge of the active material layer of a positive electrode sheet facing the corresponding secondary inner wall surface is positioned on the surface of the imaginary boundary plane, or is positioned in a region spaced further apart from the secondary inner wall surface facing the edge than the position of the imaginary boundary plane.
摘要翻译：蓄电装置设置有壳体和容纳在壳体内的电极组件。电极组件包括各自具有活性材料层的正电极片和负电极片。壳体包括至少一个主内壁表面，至少一个次内壁表面和拐角表面。将包含主内壁面和对应的角面之间的面对相应的次内壁面的边界线的平面定义为假想边界面。正电极片的活性物质层的面对相应的第二内壁表面的边缘位于虚拟边界平面的表面上，或者位于与面向边缘的第二内壁表面间隔开的区域中假想边界平面的位置。

8. 发明授权

US11594789B2 Power storage device 有权
公开(公告)号：US11594789B2
公开(公告)日：2023-02-28
申请号：US16622579
申请日：2018-04-26
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Mikiya Kurita , Motoaki Okuda , Atsushi Minagata , Yohei Hamaguchi , Masato Ogasawara
IPC分类号： H01M50/54 , H01G9/048
摘要： A secondary battery is provided with first and second electrode assembly bodies and first and second negative electrode tab groups. The first and second negative electrode tab groups respectively have collected foil portions each constituted by a plurality of collected tab portions and extension portions. The extension portions of the respective tab groups have portions-to-be-welded and step portions. In the step portions, the plurality of tabs are laminated in a state that the end portions thereof are shifted in a step-like manner. The secondary battery is provided with an overlapped portion where the step portions of the first negative electrode tab group and the second negative electrode tab group are overlapped with each other in the lamination direction of the negative electrode tabs.

9. 发明授权

US11476543B2 Alkaline storage battery and method of manufacturing the same 有权
公开(公告)号：US11476543B2
公开(公告)日：2022-10-18
申请号：US17043896
申请日：2019-03-19
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Satoshi Kono , Motoaki Okuda , Atsushi Minagata
IPC分类号： H01M50/46 , H01M10/28 , H01M50/44 , H01M50/489 , H01M50/491 , H01M4/62 , H01M10/04 , H01M4/02 , H01M4/04
摘要： An alkaline storage battery includes a plurality of foil electrodes that each have a metal foil and an active material layer. The active material layers are arranged in such a manner that adjacent two of the active material layers face each other. Separators which are each interposed between the adjacent two of the active material layers. The separators are each a nonwoven fabric including fibers as protruding portions. The active material layers have a large number of active material particles which adhere to each other, and spaces formed between the active material particles, as fitting portions. The fibers are engaged with the spaces while the fibers enter the spaces.

10. 发明授权

US10811721B2 Accumulator device 有权
公开(公告)号：US10811721B2
公开(公告)日：2020-10-20
申请号：US14784102
申请日：2014-04-15
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Atsushi Minagata , Motoaki Okuda
IPC分类号： H01M10/04 , H01M2/34 , H01M2/10 , H01M10/0585 , H01G11/12 , H01G11/80 , H01G11/82 , H01M2/02 , H01M10/34
摘要： The electricity storage device includes an electrode assembly, a case, and a holding tape. The electrode assembly further includes a bottom surface, which is supported by an inner bottom surface of the case, two end faces in a lamination direction, which are joined to the bottom face, two side surfaces, which are joined to the bottom surface and intersect with the end surfaces, and two corner sections, which are formed from the bottom surface and the side surfaces. Each corner section includes a chamfered section, and a border section between the chamfered section and the bottom surface. The holding tape covers the border section from the bottom surface in a direction parallel to the bottom surface and orthogonal to the stacking direction, further inward of the electrode assembly than the side surface.

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