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公开(公告)号：DE69302133T2
公开(公告)日：1996-11-21
申请号：DE69302133
申请日：1993-06-09
Applicant: SONY CORP
Inventor： TAKI KIYOHIRO , TOGASHI KAZUO , MASUKO TOSHIMITSU , KATAYAMA KIYOSHI , YUDA TAKESHI , NISHIKWA HIROSHI , YAMANE RYOICHI
IPC: H01M2/12 , H01M2/34 , H01M10/05 , H01M10/058 , H01M10/34
Abstract: The present invention proposes a sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. The present invention proposes another sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk made of metal is fixed between the safety valve and the electric power generating element, the safety valve projection is welded to the center of the disk, the disk also has gas apertures provided at other positions than the center, and one of the leads of the electric power generating element is electrically connected to the element side of the disk. According to this invention, when the inner pressure of the battery is increased, the current can be surely cut off, and the inner pressure can be surely reduced without causing a short-circuit by the lead so that the battery can be prevented from destructive explosion.
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公开(公告)号：DE69636796T2
公开(公告)日：2007-10-11
申请号：DE69636796
申请日：1996-09-26
Applicant: SONY CORP
Inventor： KITA YOSUKE , SHIMIZU TATUO , IWATSU SATOSHI , TAKAHASHI HIDEYA , KATAYAMA KIYOSHI
Abstract: The present invention relates to a cylindrical secondary battery comprising a terminal having a disk (20a, 21a) and a stud (20b, 21b) projecting axially from said disk (20a, 21a), said disk having an off-center hole (25) defined therein, said stud (20b, 21b) having an externally threaded surface and an internally threaded central hole, a cap (1) fastened between said disk and a nut (7) which is threaded over said externally threaded surface, a bolt (19) threaded into said internally threaded central hole for sandwiching a conductor between a head of the bolt (19) and an end of said stud (20b, 21b), a stopper pin (41) having an end portion fixed to said cap (1) and an opposite end portion fitted in said off-center hole (25) in said disk (20a, 21a), and an insulating collar (22) fitted over said opposite end portion of said stopper pin (41) for electrically insulating said cap (1) from said disk (20a, 21a).
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公开(公告)号：DE69302133D1
公开(公告)日：1996-05-15
申请号：DE69302133
申请日：1993-06-09
Applicant: SONY CORP
Inventor： TAKI KIYOHIRO , TOGASHI KAZUO , MASUKO TOSHIMITSU , KATAYAMA KIYOSHI , YUDA TAKESHI , NISHIKWA HIROSHI , YAMANE RYOICHI
IPC: H01M2/12 , H01M2/34 , H01M10/05 , H01M10/058 , H01M10/34
Abstract: The present invention proposes a sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. The present invention proposes another sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk made of metal is fixed between the safety valve and the electric power generating element, the safety valve projection is welded to the center of the disk, the disk also has gas apertures provided at other positions than the center, and one of the leads of the electric power generating element is electrically connected to the element side of the disk. According to this invention, when the inner pressure of the battery is increased, the current can be surely cut off, and the inner pressure can be surely reduced without causing a short-circuit by the lead so that the battery can be prevented from destructive explosion.
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公开(公告)号：DE69637795D1
公开(公告)日：2009-02-12
申请号：DE69637795
申请日：1996-09-26
Applicant: SONY CORP
Inventor： KITA YOSUKE , SHIMIZU TATUO , IWATSU SATOSHI , TAKAHASHI HIDEYA , KATAYAMA KIYOSHI
Abstract: The present invention relates to a cylindrical secondary battery comprising a terminal having a disk (20a, 21a) and a stud (20b, 21b) projecting axially from said disk (20a, 21a), said disk having an off-center hole (25) defined therein, said stud (20b, 21b) having an externally threaded surface and an internally threaded central hole, a cap (1) fastened between said disk and a nut (7) which is threaded over said externally threaded surface, a bolt (19) threaded into said internally threaded central hole for sandwiching a conductor between a head of the bolt (19) and an end of said stud (20b, 21b), a stopper pin (41) having an end portion fixed to said cap (1) and an opposite end portion fitted in said off-center hole (25) in said disk (20a, 21a), and an insulating collar (22) fitted over said opposite end portion of said stopper pin (41) for electrically insulating said cap (1) from said disk (20a, 21a).
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公开(公告)号：DE69302133T3
公开(公告)日：2000-06-15
申请号：DE69302133
申请日：1993-06-09
Applicant: SONY CORP
Inventor： TAKI KIYOHIRO , TOGASHI KAZUO , MASUKO TOSHIMITSU , KATAYAMA KIYOSHI , YUDA TAKESHI , NISHIKWA HIROSHI , YAMANE RYOICHI
IPC: H01M2/12 , H01M2/34 , H01M10/05 , H01M10/058 , H01M10/34
Abstract: The present invention proposes a sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. The present invention proposes another sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk made of metal is fixed between the safety valve and the electric power generating element, the safety valve projection is welded to the center of the disk, the disk also has gas apertures provided at other positions than the center, and one of the leads of the electric power generating element is electrically connected to the element side of the disk. According to this invention, when the inner pressure of the battery is increased, the current can be surely cut off, and the inner pressure can be surely reduced without causing a short-circuit by the lead so that the battery can be prevented from destructive explosion.
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Patent Agency Ranking
公开(公告)号：EP0771040A3
公开(公告)日：1998-08-12
申请号：EP96115470
申请日：1996-09-26
Applicant: SONY CORP
Inventor： KITA YOSUKE , SHIMIZU TATUO , IWATSU SATOSHI , TAKAHASHI HIDEYA , KATAYAMA KIYOSHI
CPC classification number: H01M2/06 , H01M2/0202 , H01M2/1229 , H01M2/263 , H01M10/0431
Abstract: A spirally coiled electrode assembly has positive and negative electrodes each including a web-like collector coated with an active material on opposite surfaces thereof, and separators disposed between the positive and negative electrodes. A plurality of rectangular leads extend from opposite sides of the web-like collectors in directions perpendicular to a direction in which the positive and negative electrodes and the separators are wound. Positive and negative terminals are connected to the rectangular leads extending from the respective opposite sides of the web-like collectors. The spirally coiled electrode assembly, the rectangular leads, and the positive and negative terminals are housed in a cylindrical casing whose opposite ends are closed by respective caps. The positive and negative terminals are fixed to the caps, respectively.
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公开(公告)号：DE69636796T8
公开(公告)日：2008-01-17
申请号：DE69636796
申请日：1996-09-26
Applicant: SONY CORP
Inventor： KITA YOSUKE , SHIMIZU TATUO , IWATSU SATOSHI , TAKAHASHI HIDEYA , KATAYAMA KIYOSHI
Abstract: The present invention relates to a cylindrical secondary battery comprising a terminal having a disk (20a, 21a) and a stud (20b, 21b) projecting axially from said disk (20a, 21a), said disk having an off-center hole (25) defined therein, said stud (20b, 21b) having an externally threaded surface and an internally threaded central hole, a cap (1) fastened between said disk and a nut (7) which is threaded over said externally threaded surface, a bolt (19) threaded into said internally threaded central hole for sandwiching a conductor between a head of the bolt (19) and an end of said stud (20b, 21b), a stopper pin (41) having an end portion fixed to said cap (1) and an opposite end portion fitted in said off-center hole (25) in said disk (20a, 21a), and an insulating collar (22) fitted over said opposite end portion of said stopper pin (41) for electrically insulating said cap (1) from said disk (20a, 21a).
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公开(公告)号：DE69636796D1
公开(公告)日：2007-02-08
申请号：DE69636796
申请日：1996-09-26
Applicant: SONY CORP
Inventor： KITA YOSUKE , SHIMIZU TATUO , IWATSU SATOSHI , TAKAHASHI HIDEYA , KATAYAMA KIYOSHI
Abstract: The present invention relates to a cylindrical secondary battery comprising a terminal having a disk (20a, 21a) and a stud (20b, 21b) projecting axially from said disk (20a, 21a), said disk having an off-center hole (25) defined therein, said stud (20b, 21b) having an externally threaded surface and an internally threaded central hole, a cap (1) fastened between said disk and a nut (7) which is threaded over said externally threaded surface, a bolt (19) threaded into said internally threaded central hole for sandwiching a conductor between a head of the bolt (19) and an end of said stud (20b, 21b), a stopper pin (41) having an end portion fixed to said cap (1) and an opposite end portion fitted in said off-center hole (25) in said disk (20a, 21a), and an insulating collar (22) fitted over said opposite end portion of said stopper pin (41) for electrically insulating said cap (1) from said disk (20a, 21a).
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公开(公告)号：HK1007633A1
公开(公告)日：1999-04-16
申请号：HK98106813
申请日：1998-06-25
Applicant: SONY CORP
Inventor： YUDA TAKESHI , NISHIKWA HIROSHI , YAMANE RYOICHI , TAKI KIYOHIRO , TOGASHI KAZUO , MASUKO TOSHIMITSU , KATAYAMA KIYOSHI
Abstract: The present invention proposes a sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. The present invention proposes another sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk made of metal is fixed between the safety valve and the electric power generating element, the safety valve projection is welded to the center of the disk, the disk also has gas apertures provided at other positions than the center, and one of the leads of the electric power generating element is electrically connected to the element side of the disk. According to this invention, when the inner pressure of the battery is increased, the current can be surely cut off, and the inner pressure can be surely reduced without causing a short-circuit by the lead so that the battery can be prevented from destructive explosion.
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公开(公告)号：SG63634A1
公开(公告)日：1999-03-30
申请号：SG1996008593
申请日：1993-06-09
Applicant: SONY CORP
Inventor： TAKI KIYOHIRO , TOGASHI KAZUO , MASUKO TOSHIMITSU , KATAYAMA KIYOSHI , YUDA TAKESHI , NISHIKAWA HIROSHI , YAMANE RYOICHI
IPC: H01M2/12 , H01M2/34 , H01M10/05 , H01M10/058 , H01M10/34
Abstract: The present invention proposes a sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk having a central aperture in which the safety valve projection is inserted and gas apertures through which gas is passed is fixed between the safety valve and the electric power generating element, a thin metal plate to which one of the leads of the electric power generating element is connected is attached to the element side of the disk to close the central aperture, and the safety valve projection is welded to the thin metal plate through the central aperture. The present invention proposes another sealed battery including a safety valve made of a metal plate which can be deformed by the increase of the inner pressure of the battery, and current cutting-off means which is actuated by the deformation of the safety valve, wherein the safety valve has a safety valve projection provided at its center to project toward an electric power generating element of the battery, a disk made of metal is fixed between the safety valve and the electric power generating element, the safety valve projection is welded to the center of the disk, the disk also has gas apertures provided at other positions than the center, and one of the leads of the electric power generating element is electrically connected to the element side of the disk. According to this invention, when the inner pressure of the battery is increased, the current can be surely cut off, and the inner pressure can be surely reduced without causing a short-circuit by the lead so that the battery can be prevented from destructive explosion.
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