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公开(公告)号：US20230361391A1
公开(公告)日：2023-11-09
申请号：US18028644
申请日：2021-10-05
发明人： Yuichiro Okada , Katsuya Ito , Shuichi Yamashita , Yuki Iida
IPC分类号： H01M50/107 , H01M50/171 , H01M50/124
CPC分类号： H01M50/107 , H01M50/171 , H01M50/1243
摘要： Provided is a secondary battery in which corrosion of an exterior body is stably suppressed. A non-aqueous electrolyte secondary battery according to an embodiment of the present disclosure comprises: an exterior body having a bottomed cylindrical shape and having a grooving portion in an opening portion; an electrode body and a non-aqueous electrolyte housed in the exterior body; and a sealing body caulked and fixed between the grooving portion and an opening end in the opening, wherein in a portion from the grooving portion of the inner surface of the exterior body to the open end portion, a powder of at least one among compounds selected from the group consisting of hydroxides, oxides, and carbonates is present.
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公开(公告)号：US11411274B2
公开(公告)日：2022-08-09
申请号：US16642537
申请日：2018-09-03
IPC分类号： H01M10/04 , H01M10/0569 , H01M50/183
摘要： An object of the present disclosure is to provide a high-endurance and long-life nonaqueous electrolyte secondary battery including a battery case having sealing performance unlikely to be degraded. A nonaqueous electrolyte secondary battery according to an aspect of the present disclosure includes a closed-end cylindrical outer can, a sealing body that closes an opening of the outer can, a resin gasket disposed between the outer can and the sealing body, a sealing member interposed between the outer can and the gasket, and a nonaqueous electrolyte. The sealing member has a multilayer structure including a first sealing member layer, the main constituent of which is one selected from butadiene rubber, urethane rubber, silicone rubber, chloroprene rubber, and isoprene rubber, and a second sealing member layer, the main constituent of which is one selected from ethylene propylene rubber, ethylene propylene diene rubber, and fluoro rubber.
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公开(公告)号：US09806323B2
公开(公告)日：2017-10-31
申请号：US15034001
申请日：2014-10-27
发明人： Takahiro Fukuoka , Shuichi Yamashita , Yuma Yamaguchi , Yuki Iida
CPC分类号： H01M2/345 , B23K26/21 , B23K26/32 , H01M2/027 , H01M2/0413 , H01M2/1241 , H01M2/1247
摘要： A sealing body according to the present invention is sealing body for a sealed battery including conductive terminal cap, a conductive explosion-proof valve electrically connected to the terminal cap, a conductive terminal plate having an abutting surface abutting the explosion-proof valve, and an insulating plate disposed between the explosion-proof valve and the terminal plate. A welded part between the explosion-proof valve and the terminal plate is formed in the inner part of the abutting surface, and the plan-view shape of the welded part is a shape defining an enclosed region, a C-shape, or a spiral shape. A notch part surrounding the welded part is formed in the terminal plate. The breaking pressure of the welded part is higher than the breaking pressure of the notch part.
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公开(公告)号：US20230016421A1
公开(公告)日：2023-01-19
申请号：US17785246
申请日：2020-11-25
IPC分类号： H01M50/131 , H01M10/0587 , H01M50/183 , H01M50/152 , H01M50/107
摘要： Provided is a cylindrical battery with which it is possible to suppress an increase in weight while increasing capacity. A cylindrical battery includes: an electrode body comprising a positive electrode and a negative electrode, which are wound together via a separator; an electrolyte; a bottomed cylindrical outer can for accommodating the electrode body and the electrolyte; and a sealing body that is fixed to an open end portion of the outer can by swaging and is for sealing the outer can. In regard to the outer can, the outer diameter of a body part for accommodating the electrode body is 20 mm or greater, and the outer diameter of the open end portion for accommodating the sealing body is less than the outer diameter of the body part.
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公开(公告)号：US11011806B2
公开(公告)日：2021-05-18
申请号：US16497611
申请日：2018-03-22
IPC分类号： H01M50/00 , H01M50/538 , H01M10/04 , H01M10/0587 , H01M50/10
摘要： A cylindrical battery with an electrode body in which a negative electrode plate and a positive electrode plate connected to a plurality of positive electrode leads are rolled with a separator interposed therebetween, a first insulating plate disposed on the electrode body, a current-collection plate disposed on the first insulating plate, a second insulating plate disposed in contact with an opposite surface of the current-collection plate that opposes the first insulating plate, a sealing body, and an outer jacket can, wherein the first insulating plate has at least one through hole, the first positive electrode lead passes through the through hole and between the first insulating plate and the second insulating plate, is bent from the outer-circumference portion of the current-collection plate onto the current-collection plate and the second insulating plate is provided with a recessed portion to house the first positive electrode lead.
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公开(公告)号：US20200185669A1
公开(公告)日：2020-06-11
申请号：US16642537
申请日：2018-09-03
IPC分类号： H01M2/08 , H01M10/04 , H01M10/0569
摘要： An object of the present disclosure is to provide a high-endurance and long-life nonaqueous electrolyte secondary battery including a battery case having sealing performance unlikely to be degraded. A nonaqueous electrolyte secondary battery according to an aspect of the present disclosure includes a closed-end cylindrical outer can, a sealing body that closes an opening of the outer can, a resin gasket disposed between the outer can and the sealing body, a sealing member interposed between the outer can and the gasket, and a nonaqueous electrolyte. The sealing member has a multilayer structure including a first sealing member layer, the main constituent of which is one selected from butadiene rubber, urethane rubber, silicone rubber, chloroprene rubber, and isoprene rubber, and a second sealing member layer, the main constituent of which is one selected from ethylene propylene rubber, ethylene propylene diene rubber, and fluoro rubber.
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公开(公告)号：US20200044226A1
公开(公告)日：2020-02-06
申请号：US16497611
申请日：2018-03-22
IPC分类号： H01M2/26 , H01M2/02 , H01M10/0587 , H01M10/04
摘要： A cylindrical battery with an electrode body in which a negative electrode plate and a positive electrode plate connected to a plurality of positive electrode leads are rolled with a separator interposed therebetween, a first insulating plate disposed on the electrode body, a current-collection plate disposed on the first insulating plate, a second insulating plate disposed in contact with an opposite surface of the current-collection plate that opposes the first insulating plate, a sealing body, and an outer jacket can, wherein the first insulating plate has at least one through hole, the first positive electrode lead passes through the through hole and between the first insulating plate and the second insulating plate, is bent from the outer-circumference portion of the current-collection plate onto the current-collection plate and the second insulating plate is provided with a recessed portion to house the first positive electrode lead.
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公开(公告)号：US10461304B2
公开(公告)日：2019-10-29
申请号：US15531648
申请日：2015-11-27
摘要： A cylindrical battery including an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a positive electrode current collector plate disposed on the upper insulating plate; a sealing body; and an outer can. A first positive electrode lead extends between the upper insulating plate and the current collector plate after passing through a through-hole of the upper insulating plate and is bent onto the current collector plate at an outer circumference portion thereof, and a second positive electrode lead extends along the outside of an outer circumference portion of the upper insulating plate and is bent onto the current collector plate at the outer circumference portion thereof. Those positive electrode leads are all connected to the current collector plate.
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9.发明申请公开(公告)号：US20180130994A1
公开(公告)日：2018-05-10
申请号：US15564238
申请日：2016-03-18
IPC分类号： H01M2/26 , H01M10/0525 , H01M10/0587 , H01M10/04 , H01M4/134 , H01M4/80
CPC分类号： H01M2/26 , H01M2/022 , H01M2/263 , H01M4/134 , H01M4/661 , H01M4/663 , H01M4/80 , H01M10/0422 , H01M10/0431 , H01M10/052 , H01M10/0525 , H01M10/0587
摘要： A cylindrical battery according to one aspect of the present invention includes an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an electrolyte liquid; a cylindrical outer can having a bottom portion which receives the electrode body and the electrolyte liquid; and a sealing body sealing an open portion of the outer can. The positive electrode leads extend along an outer circumference portion of a collector member disposed on the electrode body and are connected to a surface of the collector ember at an outer side of the battery. The collector member includes a collector plate to which the positive electrode leads are connected and a first insulating plate fitted to a surface of the collector plate at an inner side of the battery.
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10.发明授权公开(公告)号：US10263237B2
公开(公告)日：2019-04-16
申请号：US15564238
申请日：2016-03-18
IPC分类号： H01M2/26 , H01M10/04 , H01M4/134 , H01M4/80 , H01M10/0525 , H01M2/02 , H01M4/66 , H01M10/0587 , H01M10/052
摘要： A cylindrical battery according to one aspect of the present invention includes an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an electrolyte liquid; a cylindrical outer can having a bottom portion which receives the electrode body and the electrolyte liquid; and a sealing body sealing an open portion of the outer can. The positive electrode leads extend along an outer circumference portion of a collector member disposed on the electrode body and are connected to a surface of the collector member at an outer side of the battery. The collector member includes a collector plate to which the positive electrode leads are connected and a first insulating plate fitted to a surface of the collector plate at an inner side of the battery.
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