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公开(公告)号：US20210119286A1
公开(公告)日：2021-04-22
申请号：US16634383
申请日：2018-07-05
Inventor： Takeshi Enomoto , Kazutoshi Kohira
IPC: H01M50/147 , H01M10/0587 , H01M10/04 , H01M50/107 , H01M50/578 , H01M50/183
Abstract: A cylindrical battery with an opening sealing body that seals an opening of a battery can. The opening sealing body includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected to each other at respective central portions. The valve member has an annular thin-walled portion which is deformable when an internal pressure of the battery increases, and a recessed portion is formed by the thin-walled portion on the insulating member opposing side of the valve member. The insulating member has a section P1 that covers a surface, on the valve member side, of the metal plate, and the section P1 has a rib to be housed in the recessed portion.
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公开(公告)号：US20210119291A1
公开(公告)日：2021-04-22
申请号：US16634652
申请日：2018-07-05
Inventor： Kazutoshi Kohira , Takeshi Enomoto
IPC: H01M50/188 , H01M50/593
Abstract: A cylindrical battery with an opening sealing body which includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected at respective central portions. The metal plate and the insulating member each have communicating holes. The valve member has a thin-walled portion which is deformable when an internal pressure of the battery increases. The insulating member has a section that covers a surface, on the valve member side, of the metal plate, a section that is provided subsequent to the section and covers a circumferential end face of the metal plate, and a section that is provided subsequent to the section and covers a surface, on an inner side of the battery, of the metal plate.
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公开(公告)号：US12068489B2
公开(公告)日：2024-08-20
申请号：US17414766
申请日：2019-12-19
Inventor： Kazutoshi Kohira , Tatsuya Hirano
IPC: H01M50/107 , H01M50/147 , H01M50/179 , H01M50/184 , H01M50/188
CPC classification number: H01M50/107 , H01M50/147 , H01M50/179 , H01M50/184 , H01M50/188
Abstract: A battery includes a battery can including a cylindrical portion and a bottom portion, the cylindrical portion including an opening edge portion at one end portion of the cylindrical portion, the bottom portion closing the other end portion of the cylindrical portion; an electrode body housed in the cylindrical portion; a sealing member sealing an opening of the opening edge portion; and a fixing member fixing the sealing member to the battery can. The sealing member includes a terminal portion, an outer ring, and a first gasket, the outer ring being disposed along a peripheral edge of the terminal portion, and the first gasket being interposed between the opening edge portion and an external peripheral edge portion of the outer ring. The fixing member compresses the first gasket in a direction in which the external peripheral edge portion and the opening edge portion face each other, the fixing member compressing the first gasket via the external peripheral edge portion and the opening edge portion.
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公开(公告)号：US11757153B2
公开(公告)日：2023-09-12
申请号：US16634684
申请日：2018-07-05
Inventor： Takeshi Enomoto , Kazutoshi Kohira
IPC: H01M50/325 , H01M10/04 , H01M10/052 , H01M50/147 , H01M50/574 , H01M50/586 , H01M50/593
CPC classification number: H01M50/325 , H01M10/0422 , H01M10/0477 , H01M10/052 , H01M50/147 , H01M50/574 , H01M50/586 , H01M50/593 , H01M2200/20
Abstract: A cylindrical battery with an opening sealing body that seals an opening of a battery can. The opening sealing body includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected to each other at respective central portions. The valve member has an annular thin-walled portion which is deformable when an internal pressure of the battery increases. The metal plate and the insulating member have respective holes which communicate with each other. The insulating member has a section that covers a surface, on the valve member side, of the metal plate, and a section that is provided subsequent to the section and covers a lateral surface of the hole of the metal plate.
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Patent Agency Ranking
公开(公告)号：US11316223B2
公开(公告)日：2022-04-26
申请号：US16634383
申请日：2018-07-05
Inventor： Takeshi Enomoto , Kazutoshi Kohira
IPC: H01M50/147 , H01M50/107 , H01M50/578 , H01M50/183 , H01M10/04 , H01M10/0587
Abstract: A cylindrical battery with an opening sealing body that seals an opening of a battery can. The opening sealing body includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected to each other at respective central portions. The valve member has an annular thin-walled portion which is deformable when an internal pressure of the battery increases, and a recessed portion is formed by the thin-walled portion on the insulating member opposing side of the valve member. The insulating member has a section P1 that covers a surface, on the valve member side, of the metal plate, and the section P1 has a rib to be housed in the recessed portion.
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公开(公告)号：US12272829B2
公开(公告)日：2025-04-08
申请号：US17298412
申请日：2019-11-29
Inventor： Kazutoshi Kohira , Keisuke Naito , Shinya Geshi , Hiroshi Takasaki , Kazumichi Shimizu
IPC: H01M50/107 , H01M50/147 , H01M50/152 , H01M50/184 , H01M50/186 , H01M50/593 , H01M6/02 , H01M10/02
Abstract: A battery including: a battery can including a cylinder portion including an opening edge portion at one end portion of the cylinder portion and a bottom portion that closes the other end portion of the cylinder portion; an electrode body; a sealing member that seals an opening of the opening edge portion. The sealing member includes: a sealing plate; a cap connected to the sealing plate and electrically insulated from the sealing plate; and a sealing portion sealing a space between the cylinder portion and the cap. The cap includes: a ring-shaped top plate portion opposing the opening edge portion in an axial direction of the cylinder portion; and a side wall portion covering an outer circumferential surface of the cylinder portion. The sealing portion may be a gasket provided between the cap and the cylinder portion in a compressed state. The cap is electrically connected to the cylinder portion.
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公开(公告)号：US20210119299A1
公开(公告)日：2021-04-22
申请号：US16634684
申请日：2018-07-05
Inventor： Takeshi Enomoto , Kazutoshi Kohira
IPC: H01M50/325 , H01M10/052 , H01M10/04
Abstract: A cylindrical battery with an opening sealing body that seals an opening of a battery can. The opening sealing body includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected to each other at respective central portions. The valve member has an annular thin-walled portion which is deformable when an internal pressure of the battery increases. The metal plate and the insulating member have respective holes which communicate with each other. The insulating member has a section that covers a surface, on the valve member side, of the metal plate, and a section that is provided subsequent to the section and covers a lateral surface of the hole of the metal plate.
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公开(公告)号：US12212008B2
公开(公告)日：2025-01-28
申请号：US17414782
申请日：2019-12-19
Inventor： Tatsuya Hirano , Kazutoshi Kohira
IPC: H01M50/179 , H01M50/107 , H01M50/184 , H01M50/188
Abstract: A battery includes a battery can which includes a cylindrical portion having an opening edge portion at one end portion and a bottom portion closing the other end portion of the cylindrical portion, an electrode assembly which is housed in the cylindrical portion, and an opening sealing body which seals an opening formed in the opening edge portion. The opening sealing body includes a terminal portion and a gasket interposed in a compressed state between the terminal portion and the opening edge portion. The opening edge portion includes at least a base portion extending in an axial direction of the cylindrical portion and a tongue portion protruding from the base portion, and the tongue portion extends inward in a radial direction of the cylindrical portion so as to cover an upper surface of the gasket.
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公开(公告)号：US11831032B2
公开(公告)日：2023-11-28
申请号：US16634652
申请日：2018-07-05
Inventor： Kazutoshi Kohira , Takeshi Enomoto
IPC: H01M50/188 , H01M50/593 , H01M50/147 , H01M50/586 , H01M50/574
CPC classification number: H01M50/188 , H01M50/147 , H01M50/574 , H01M50/586 , H01M50/593
Abstract: A cylindrical battery with an opening sealing body which includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected at respective central portions. The metal plate and the insulating member each have communicating holes. The valve member has a thin-walled portion which is deformable when an internal pressure of the battery increases. The insulating member has a section that covers a surface, on the valve member side, of the metal plate, a section that is provided subsequent to the section and covers a circumferential end face of the metal plate, and a section that is provided subsequent to the section and covers a surface, on an inner side of the battery, of the metal plate.
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