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公开(公告)号：US20170309886A1
公开(公告)日：2017-10-26
申请号：US15495502
申请日：2017-04-24
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Hirokazu KAMBAYASHI
IPC: H01M2/26 , H01M10/0525 , H01M2/30
CPC classification number: H01M2/26 , H01M2/22 , H01M2/263 , H01M2/30 , H01M10/0431 , H01M10/0525
Abstract: An energy storage device comprising: electrode terminals; an electrode assembly formed by stacking a positive electrode plate and a negative electrode plate; and current collectors which connect the electrode terminals and the electrode assembly to each other, wherein at least one of the positive electrode plate and the negative electrode plate has a plurality of tab groups which are joined to the current collector, each tab group being formed by stacking one or more tabs projecting toward the electrode terminal, and at least one tab group among the tab groups and the current collector has a swaged joint portion, the swaged joint portion projecting from either one of the tab group or the current collector to the other of the tab group or the current collector.
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公开(公告)号：US20180342723A1
公开(公告)日：2018-11-29
申请号：US15761464
申请日：2016-09-27
Applicant: GS Yuasa International Ltd
Inventor： Hirokazu KAMBAYASHI , Kazuto MAEDA
Abstract: An energy storage device including: an electrode assembly and a positive electrode current collector, wherein the positive electrode current collector includes an electrode connecting portion connected to the electrode assembly, the electrode connecting portion includes a first portion and a second portion which has a smaller wall thickness than the first portion and is joined to the electrode assembly, and either one of the second portion or the electrode assembly includes a first convex portion projecting toward the other in a joined portion.
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公开(公告)号：US20160285134A1
公开(公告)日：2016-09-29
申请号：US15078961
申请日：2016-03-23
Applicant: GS Yuasa International Ltd.
Inventor： Takeshi SASAKI , Hirokazu KAMBAYASHI , Kazuto MAEDA
IPC: H01M10/0587 , H01M4/70 , H01M4/66
CPC classification number: H01M4/661 , H01M2/26 , H01M4/66 , H01M4/70 , H01M10/0431 , H01M10/0567
Abstract: Provided is an energy storage device which includes: an electrode assembly including a positive electrode and a negative electrode respectively including a non-coated region having a metal foil; current collectors each having a support portion which is made to overlap with the non-coated region; and opposedly facing supports each configured to clamp the non-coated region cooperatively with the support portion, wherein at least one of the non-coated region, the support portion and the opposedly facing support includes a conductive layer having non-oxidizing property or hardly-oxidizable property, the conductive layer covering at least one surface out of a surface of the non-coated region facing the support portion, a surface of the non-coated region facing the opposedly facing support, a surface of the support portion facing the non-coated region, and a surface of the opposedly facing support facing the non-coated region.
Abstract translation: 提供一种能量存储装置，其包括：电极组件，其包括分别包括具有金属箔的未涂覆区域的正极和负极; 每个集尘器具有与未涂覆区域重叠的支撑部分; 并且相对地支撑各自配置成与所述支撑部分协作地夹持所述未涂覆区域的支撑件，其中所述未涂覆区域，所述支撑部分和所述相对面对的支撑件中的至少一个包括具有非氧化性质的导电层， 所述导电层覆盖面向所述支撑部分的未涂覆区域的表面中的至少一个表面，所述未涂覆区域的面向相对面对的支撑件的表面，所述支撑部分的面向所述非涂覆区域的表面， 并且面向非涂覆区域的相对面对的支撑件的表面。
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公开(公告)号：US20200335738A1
公开(公告)日：2020-10-22
申请号：US16769939
申请日：2018-11-29
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Hirokazu KAMBAYASHI
Abstract: An energy storage device includes: a case including a case body and a lid; and electrode terminals (positive electrode terminal, negative electrode terminal) fixed to the lid. A junction portion for joining the case body and the lid to each other is formed on a surface of the case on an electrode terminal side. The lid includes recessed portions disposed along and adjacent to the junction portion without being disposed between the electrode terminal and the junction portion.
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公开(公告)号：US20200273635A1
公开(公告)日：2020-08-27
申请号：US16647424
申请日：2018-09-14
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Shohei YAMAO
Abstract: An energy storage device includes an electrode terminal including a plate-like terminal body and a shaft portion connected to the terminal body, and an upper insulating member disposed between the terminal body and the case, the upper insulating member having a through-hole through which the shaft portion penetrates. The upper insulating member has a sidewall portion disposed along an end surface of the terminal body. The sidewall portion is provided with a thin portion at a position on a side of a center point of the shaft portion in a direction orthogonal to an extending direction of the sidewall portion in a plan view.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180006276A1
公开(公告)日：2018-01-04
申请号：US15546600
申请日：2016-03-29
Applicant: GS Yuasa International Ltd.
Inventor： Hirokazu KAMBAYASHI , Kazuto MAEDA
IPC: H01M2/02 , H01G9/00 , H01M10/058 , B23K9/16 , B23K101/36
CPC classification number: H01M2/02 , B23K9/16 , B23K26/14 , B23K26/26 , B23K2101/36 , H01G9/0029 , H01G11/78 , H01G11/80 , H01G11/84 , H01M2/0439 , H01M2/0473 , H01M10/058 , H01M2220/20 , Y02E60/13 , Y02T10/7022
Abstract: In a method for manufacturing an energy storage device by applying welding to a container of the energy storage device, the method includes: arranging a jig on which wall surfaces are formed between two parts to be welded to which welding is applied; and welding the two parts to be welded while supplying a shield gas to the two parts to be welded from two different directions corresponding to the two parts to be welded.
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公开(公告)号：US20180183018A1
公开(公告)日：2018-06-28
申请号：US15852383
申请日：2017-12-22
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Hirokazu KAMBAYASHI
IPC: H01M2/08 , H01M2/02 , H01M2/06 , H01M10/0587
CPC classification number: H01M2/08 , H01M2/0202 , H01M2/043 , H01M2/0473 , H01M2/06 , H01M2/22 , H01M2/26 , H01M2/305 , H01M10/0525 , H01M10/0587 , H01M2220/20 , Y02E60/122
Abstract: An energy storage device includes: an electrode assembly; a container that includes a wall portion and accommodates the electrode assembly; a first conductive member; a second conductive member electrically connected to the electrode assembly and connected to the first conductive member and is arranged to pass through the wall portion; and a sealing member that is nonmetallic and disposed between the first conductive member and the second conductive member. The first conductive member and the second conductive member are in direct contact and are made of mutually different metal materials. The sealing member is disposed at a contact interface of the first conductive member and the second conductive member.
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公开(公告)号：US20180097208A1
公开(公告)日：2018-04-05
申请号：US15700674
申请日：2017-09-11
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Hirokazu KAMBAYASHI
IPC: H01M2/04 , H01M10/0525 , H01M2/02 , H01M2/06 , H01M2/30
CPC classification number: H01M2/043 , H01M2/0277 , H01M2/0426 , H01M2/0473 , H01M2/06 , H01M2/263 , H01M2/30 , H01M10/0525 , H01M2220/20
Abstract: An energy storage device includes a first locking portion for locking a rotation of a positive electrode current collecting member about a shaft portion of a positive electrode terminal with respect to a lower insulating member. The first locking portion includes: a recessed portion formed on the lower insulating member; and a projecting portion formed on the positive electrode current collecting member. The recessed portion is indented away from the shaft portion in a direction which intersects with the shaft portion. The projecting portion projects away from the shaft portion in the direction which intersects with the shaft portion. The recessed portion and the projecting portion are configured to engage with each other. A leg portion is positioned closer to an end portion of a lid body in a longitudinal direction of the lid body than the first locking portion is.
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公开(公告)号：US20190044105A1
公开(公告)日：2019-02-07
申请号：US16075520
申请日：2017-01-19
Applicant: GS Yuasa International Ltd.
Inventor： Kazuto MAEDA , Hirokazu KAMBAYASHI
Abstract: A method for manufacturing an energy storage device includes a swaging step in which a swaged portion is formed by swaging a tip portion, penetrating a positive electrode terminal or a positive electrode current collector and projecting in a predetermined direction from the positive electrode terminal or the positive electrode current collector, of a shaft portion. In the swaging step, the tip portion of the shaft portion is swaged by a punch which includes a pressing surface, the pressing surface including a punch-side first concave portion which is concaved in the predetermined direction and a punch-side second concave portion which is concaved in the predetermined direction more than the punch-side first concave portion at an inner peripheral side of the punch-side first concave portion.
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10.发明申请公开(公告)号：US20180375069A1
公开(公告)日：2018-12-27
申请号：US15781450
申请日：2016-12-28
Applicant: GS Yuasa International Ltd.
Inventor： Hirokazu KAMBAYASHI , Kazuto MAEDA
CPC classification number: H01M2/08 , H01G9/0029 , H01G9/008 , H01G9/10 , H01G11/74 , H01G11/80 , H01G11/84 , H01M2/0404 , H01M2/06 , H01M2/30
Abstract: A sealing member (positive electrode first sealing member) disposed between a terminal (positive electrode terminal), which is provided on a case of an energy storage device, and the case or between a current collector (positive electrode current collector), which is electrically connected with the terminal, and the case. The sealing member includes a first surface (bottom surface) which faces the case and a second surface (bottom surface) which is opposite to the first surface and faces the terminal or the current collector. A first protrusion is formed on the first surface, the first protrusion surrounding a shaft portion of the terminal. A second protrusion is formed on the second surface, the second protrusion surrounding the shaft portion of the terminal. A protrusion amount of the first protrusion is different from a protrusion amount of the second protrusion.
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