JP2002216743A - Pressure cutoff sensor for battery - Google Patents
Pressure cutoff sensor for batteryInfo
- Publication number
- JP2002216743A JP2002216743A JP2001010899A JP2001010899A JP2002216743A JP 2002216743 A JP2002216743 A JP 2002216743A JP 2001010899 A JP2001010899 A JP 2001010899A JP 2001010899 A JP2001010899 A JP 2001010899A JP 2002216743 A JP2002216743 A JP 2002216743A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- cutoff
- pressure
- path
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
- Measurement Of Current Or Voltage (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リチウムイオン２
次電池等に使用して好適な電池用圧力遮断センサに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a pressure cutoff sensor for a battery suitable for use in a secondary battery or the like.
【０００２】[0002]
【従来の技術】従来の電池用圧力遮断センサは、銀等か
らなる導電路が設けられた絶縁基板を電池カバーに取り
付けた構成を有し、そして、カバー内の圧力が上昇する
と、カバーが変位して絶縁基板を破断して、導電路が遮
断され、これにより特に充電時の電池の爆発等を防止す
るようになっている。2. Description of the Related Art A conventional battery pressure cutoff sensor has a structure in which an insulating substrate provided with a conductive path made of silver or the like is attached to a battery cover, and when the pressure in the cover increases, the cover is displaced. As a result, the insulating substrate is broken and the conductive path is cut off, thereby preventing the battery from exploding, especially during charging.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の電池用
圧力遮断センサは、電池を電気機器に使用した場合、特
に放電時に電気部品や配線パターン等のショートによ
り、所定値以上の電流が電池の導電路に流れて、導電路
が遮断されず、電気機器のＩＣ部品等に影響を与えて、
ＩＣ部品等が破損するという問題がある。However, the conventional battery pressure cutoff sensor has a problem that when a battery is used in an electric device, a current of a predetermined value or more due to a short-circuit of an electric component or a wiring pattern during electric discharge occurs. Flowing into the conductive path, the conductive path is not interrupted, affecting IC parts of electrical equipment, etc.
There is a problem that IC parts and the like are damaged.
【０００４】本発明は、所定値以上の電流が流れた時、
電路が遮断するヒューズを備えて、充電時には電池が爆
発せず、また、放電時には電気機器のＩＣ部品等の破損
のなく、保護回路を簡素化できる電池用圧力遮断センサ
を提供することを目的とする。According to the present invention, when a current of a predetermined value or more flows,
An object of the present invention is to provide a battery pressure cut-off sensor that has a fuse that cuts off an electric circuit, does not explode a battery during charging, and does not damage IC components of an electric device during discharging and can simplify a protection circuit. I do.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
の第１の解決手段として、少なくとも一対の電極、及
び、この一対の電極間に接続され、所定値以上の電流が
流れると電路を遮断する導電体からなる遮断路とを絶縁
基板上に形成して構成されたヒューズと、発電素子を収
納し、前記ヒューズを取り付けたカバー部材とを備え、
前記カバー部材には、このカバー部材の内圧の上昇に応
じて変位する感圧手段を設け、前記カバー部材に取り付
けられた前記ヒューズの一方の前記電極には、前記発電
素子の正極、或いは負極が接続され、前記カバー部材の
内圧上昇による前記感圧手段の変位によって、前記絶縁
基板が破断して、前記遮断路の電路が遮断すると共に、
所定値以上の電流が流れると、前記遮断路の電路が遮断
するようにした構成とした。As a first means for solving the above problems, at least a pair of electrodes and an electric circuit which is connected between the pair of electrodes and cuts off an electric circuit when a current of a predetermined value or more flows. A fuse configured by forming a cutoff path made of a conductive material on an insulating substrate, and a cover member that houses the power generation element and has the fuse attached thereto,
The cover member is provided with pressure-sensitive means that is displaced in accordance with an increase in the internal pressure of the cover member, and one of the electrodes of the fuse attached to the cover member has a positive electrode or a negative electrode of the power generating element. Connected, by the displacement of the pressure sensing means due to an increase in the internal pressure of the cover member, the insulating substrate is broken, and the electric circuit of the cutoff path is cut off,
When a current equal to or more than a predetermined value flows, the electric circuit of the interruption circuit is interrupted.
【０００６】また、第２の解決手段として、前記遮断路
には、一部が細幅となった細幅部を設けた構成とした。
また、第３の解決手段として、前記遮断路には、その側
縁部にＶ字状の傾斜部を設けて、前記細幅部を形成した
構成とした。Further, as a second solution, the cut-off path is provided with a narrow portion which is partially narrow.
As a third solution, the cut-off path is provided with a V-shaped inclined portion at a side edge thereof to form the narrow portion.
【０００７】また、第４の解決手段として、前記遮断路
には、その側縁部に凹凸部を設けて、前記細幅部を形成
した構成とした。また、第５の解決手段として、前記遮
断路上には、絶縁材からなる保護膜を形成した構成とし
た。As a fourth solution, the cut-off path is provided with an uneven portion on a side edge thereof to form the narrow portion. As a fifth solution, a protective film made of an insulating material is formed on the cutoff path.
【０００８】また、第６の解決手段として、前記絶縁基
板には、応力集中部を設けた構成とした。また、第７の
解決手段として、前記絶縁基板の側部に切り欠き部を設
けて前記応力集中部を形成した構成とした。As a sixth solution, a stress concentration portion is provided on the insulating substrate. Further, as a seventh solution, a cutout portion is provided on a side portion of the insulating substrate to form the stress concentration portion.
【０００９】[0009]
【発明の実施の形態】本発明の電池用圧力遮断センサの
図面を説明すると、図１は本発明の電池用圧力遮断セン
サの第１実施例の要部の分解斜視図、図２は本発明の電
池用圧力遮断センサの第１実施例の要部の断面図、図３
は本発明の電池用圧力遮断センサの動作を示す説明図、
図４は本発明の電池用圧力遮断センサの動作を示す説明
図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings of the pressure cut-off sensor for a battery according to the present invention, FIG. 1 is an exploded perspective view of a main part of a first embodiment of the pressure cut-off sensor for a battery according to the present invention, and FIG. FIG. 3 is a cross-sectional view of a main part of a first embodiment of the pressure cut-off sensor for a battery of FIG.
Is an explanatory diagram showing the operation of the battery pressure cutoff sensor of the present invention,
FIG. 4 is an explanatory view showing the operation of the battery pressure cutoff sensor of the present invention.
【００１０】また、図５は本発明の電池用圧力遮断セン
サの第１実施例の係るヒューズの斜視図、図６は本発明
の電池用圧力遮断センサの第２実施例の係るヒューズの
斜視図、図７は本発明の電池用圧力遮断センサの第２実
施例の係るヒューズの斜視図である。FIG. 5 is a perspective view of a fuse according to a first embodiment of the battery pressure cutoff sensor of the present invention, and FIG. 6 is a perspective view of a fuse according to a second embodiment of the battery pressure cutoff sensor of the present invention. FIG. 7 is a perspective view of a fuse according to a second embodiment of the battery pressure cut-off sensor of the present invention.
【００１１】次に、本発明の電池用圧力遮断センサの第
１実施例の構成を図１〜図５に基づいて説明すると、電
路遮断部品Ｔは、全体形状が略矩形に形成され、端子部
２と、絶縁体３と、感圧手段を形成するダイヤフラム部
Ｄ、並びに安全弁部Ｚとを有し、カバー部材Ｋの一部を
構成する電池蓋（負ケース）４と、保持体５、外部電極
６、ヒューズＨ、リベット８、とから主に構成されてい
る。このような構成の電池の電路遮断部品Ｔは、電池蓋
４の周囲の鍔部４ｊがカバー部材Ｋに溶接等で取り付け
られて、カバー部材Ｋの内部が気密に遮蔽されるように
なっている。Next, the structure of a first embodiment of a battery pressure cut-off sensor according to the present invention will be described with reference to FIGS. 1 to 5. The circuit cut-off component T is formed in a substantially rectangular overall shape. 2, an insulator 3, a diaphragm portion D forming pressure sensing means, and a safety valve portion Z, and a battery lid (negative case) 4 constituting a part of the cover member K; It is mainly composed of an electrode 6, a fuse H, and a rivet 8. In the electric circuit blocking component T of the battery having such a configuration, the flange 4j around the battery cover 4 is attached to the cover member K by welding or the like, so that the inside of the cover member K is airtightly shielded. .
【００１２】端子部２はアルミニウム製で、略直角に折
り曲げられており、その長手方向の一端部にはリベット
８の接続部８ｄと溶接される接続片部２ａが延設されて
いる。また、平坦部２ｂには略円形の開口部２ｃが複数
個形成されている。The terminal portion 2 is made of aluminum and is bent at a substantially right angle. A connecting piece 2a to be welded to the connecting portion 8d of the rivet 8 extends at one end in the longitudinal direction. A plurality of substantially circular openings 2c are formed in the flat portion 2b.
【００１３】絶縁体３はＰＰ等の樹脂材料から成り、一
端寄りにリベット８を貫挿する円筒部３ａと、電池蓋４
のダイヤフラム部Ｄを図示下方側に膨出し得るようにし
た凹部３ｂと、この凹部３ｂの底面に貫通形成された通
気孔３ｃ、３ｃと、溶接用の孔３ｄと、電池蓋４の安全
弁部Ｚに連通させる略長方形の開口３ｅ、３ｅと位置決
め用の突起部３ｆとから構成されている。電池蓋４はス
テンレス材のような導電性金属板から成り、外形が略矩
形の弁当箱状に形成され、外周部に略矩形の鍔部４ｊ
と、この鍔部４ｊの内側を絞り加工等で下方に突出させ
て平坦状の底板４ａが形成されている。The insulator 3 is made of a resin material such as PP, and has a cylindrical portion 3a through which a rivet 8 is inserted near one end, and a battery cover 4
3b that allows the diaphragm portion D to swell downward in the figure, vent holes 3c and 3c formed through the bottom surface of the concave portion 3b, holes 3d for welding, and a safety valve portion Z of the battery lid 4. Are formed with substantially rectangular openings 3e and 3e communicating with the projections, and positioning projections 3f. The battery cover 4 is made of a conductive metal plate such as a stainless steel material, is formed in a substantially rectangular lunch box shape, and has a substantially rectangular flange portion 4j on an outer peripheral portion.
A flat bottom plate 4a is formed by projecting the inside of the flange 4j downward by drawing or the like.
【００１４】この底板４ａの周囲には、鍔部４ｊと底板
４ａとを連結する突条部４ｂが形成されている。前記底
板４ａの一端寄りにはリベット８を挿通した円筒部３ａ
を貫通する孔部４ｃが形成されている。この孔部４ｃの
図示右隣りには、感圧手段であるダイヤフラム部Ｄが形
成され、このダイヤフラム部Ｄは底板４ａの裏面の一部
を、外周部を円環状に凹ませた凹部４ｋが形成され、こ
の凹部４ｋの底面を薄肉にした連結部４ｄが形成されて
いる。また、この連結部４ｄの中央部付近には、図示上
方のヒューズＨ（後述する）側に突出する凸部４ｅが形
成されている。A ridge 4b is formed around the bottom plate 4a to connect the flange 4j and the bottom plate 4a. Near one end of the bottom plate 4a, a cylindrical portion 3a through which a rivet 8 is inserted.
Is formed. A diaphragm portion D as pressure sensing means is formed on the right side of the hole 4c in the drawing, and the diaphragm portion D is formed with a concave portion 4k in which a part of the back surface of the bottom plate 4a is formed by annularly recessing the outer peripheral portion. The connecting portion 4d is formed by making the bottom surface of the concave portion 4k thin. In the vicinity of the center of the connecting portion 4d, a convex portion 4e projecting toward a fuse H (described later) on the upper side in the figure is formed.
【００１５】感圧手段であるダイヤグラム部Ｄは、中央
部の凸部を上方のヒューズＨから遠ざける方向に連結部
４ｄを図示下方に椀状に膨出形成している。また、図２
に示す電池蓋４の他端寄りの底板４ａには、安全弁部Ｚ
が形成され、この安全弁部Ｚは、底板４ａの一部に、外
形が円環状で図示上方に突出する突出部４ｆと、この突
出部４ｆの根元部分に形成されて電池蓋４と突出部４ｆ
とを連結する連結部４ｇとから成り、この連結部４ｇは
突出部４ｆより薄肉に形成され、連結部４ｇの上方から
見た形状は円環状に形成されている。The diagram portion D, which is a pressure-sensitive means, has a connecting portion 4d bulging downwardly in a bowl shape in the direction in which the central convex portion is moved away from the upper fuse H. FIG.
The bottom plate 4a near the other end of the battery cover 4 shown in FIG.
The safety valve portion Z is formed on a part of the bottom plate 4a, a protrusion 4f having an annular outer shape and protruding upward in the drawing, and a battery cover 4 and a protrusion 4f formed at the root of the protrusion 4f.
The connecting portion 4g is formed thinner than the protruding portion 4f, and the shape of the connecting portion 4g as viewed from above is formed in an annular shape.
【００１６】このような安全弁部Ｚは、突出部４ｆの突
出方向を、電池の内部を気密に遮蔽する電池蓋４の外部
に突出して、電池に異常が発生して電池内部の圧力が異
常に上昇し、この電池内圧が所定値以上に上昇すると、
薄肉に形成された連結部４ｇが破断するようになってい
る。この連結部４ｇの破断部分から電池内部の高圧の気
体が外部に排出されて、電池の爆発を事前に防止するよ
うになっている。また、電池蓋４の他端側で底板４ａの
隅部には突条部４ｂの一部を内側に突出させた位置決め
用の突起部４ｈが形成され、突条部４ｂの上端の外周側
には外方に延出する鍔部４ｊが形成されて電池蓋４が構
成されている。In such a safety valve portion Z, the projecting direction of the projecting portion 4f projects to the outside of the battery cover 4 which hermetically shields the inside of the battery. When the internal pressure of the battery rises above a predetermined value,
The thinly formed connecting portion 4g is broken. The high-pressure gas inside the battery is discharged to the outside from the broken portion of the connecting portion 4g, thereby preventing the battery from exploding in advance. A positioning projection 4h is formed at the other end of the battery lid 4 at the corner of the bottom plate 4a so that a part of the projection 4b projects inward, and is formed on the outer periphery of the upper end of the projection 4b. A battery cover 4 is formed by forming a flange 4j extending outward.
【００１７】また、保持体５はＰＰＳ等の樹脂材料で成
形され、電池蓋４の突条部４ｂ内に嵌合される大きさに
なっている。保持体５の一端寄りには、リベット８を挿
通した円筒部３ａを貫通する貫通孔５ａと、この貫通孔
５ａのまわりが凹部に設けられて、リベット８を接続す
るために形成されたリベット接続部９ａと、ヒューズＨ
を支持するための一対の支持する第１、第２リード９
ｂ、９ｃをそれぞれ延出した開口部５ｂ、５ｂと、外部
電極６を保持する台座部５ｃと、外部電極６の接続部６
ｃと接続される電極接続部９ｄと、電池蓋４と溶接され
る固定部９ｅと、安全弁部Ｚに対応した位置に形成され
た開口５ｄと、電池蓋４の位置決め用の突起部４ｈが嵌
合される切欠き部５ｅとが設けられている。The holder 5 is formed of a resin material such as PPS, and has a size to be fitted into the ridge 4b of the battery cover 4. Near the one end of the holder 5, a through hole 5a penetrating through the cylindrical portion 3a through which the rivet 8 is inserted, and a rivet connection formed around the through hole 5a in a concave portion for connecting the rivet 8 are formed. Part 9a and fuse H
A pair of first and second leads 9 for supporting
b, 9c extending, respectively, opening 5b, 5b, pedestal part 5c which holds external electrode 6, and connection part 6 of external electrode 6
c, an electrode connection portion 9d, a fixing portion 9e welded to the battery cover 4, an opening 5d formed at a position corresponding to the safety valve portion Z, and a positioning protrusion 4h for positioning the battery cover 4. Notches 5e to be combined are provided.
【００１８】このような保持体５には、リベット接続部
９ａ、第１、第２リード９ｂ、９ｃ、電極接続部９ｄ、
固定部９ｅ等が、インサート成形等により一体化されて
いる。前記保持体５には電極接続部９ｄの下面を露出さ
せる孔部５ｆが形成され、この孔部５ｆに溶接具を通し
て保持体５の電極接続部９ｄに当て、上方から溶接具を
外部電極６の接続部６ｃに当てて挟み込んでスポット溶
接を行って、外部電極６を保持体５に固定すると共に第
２リード９ｃに電気的に接続させている。The holder 5 has a rivet connection portion 9a, first and second leads 9b and 9c, an electrode connection portion 9d,
The fixing portion 9e and the like are integrated by insert molding or the like. The holder 5 has a hole 5f for exposing the lower surface of the electrode connection portion 9d. The hole 5f is passed through the welding tool to the electrode connection portion 9d of the holder 5, and the welding tool is connected to the external electrode 6 from above. The external electrode 6 is fixed to the holder 5 and electrically connected to the second lead 9c by performing spot welding by sandwiching the external electrode 6 against the connecting portion 6c.
【００１９】次に、ヒューズＨの構成を、特に図５に基
づいて説明すると、ヒューズＨを構成するセラミック等
の絶縁材よりなる絶縁基板１１は、矩形状でチップ状を
なし、その長手方向の両側部１１ａの中央部には、互い
に対向した応力集中部である切り欠き部１１ｂが設けら
れている。また、この絶縁基板１１の一面には、一対の
電極１２が間隔を置いて形成され、この電極１２は、例
えば、絶縁基板１１上に形成された銀被膜と、この銀被
膜上に設けられた半田によって形成されている。Next, the configuration of the fuse H will be described with reference to FIG. 5 in particular. The insulating substrate 11 made of an insulating material such as ceramics constituting the fuse H is formed in a rectangular chip shape and has a longitudinal shape. At the center of both side parts 11a, notch parts 11b, which are stress concentration parts facing each other, are provided. A pair of electrodes 12 are formed on one surface of the insulating substrate 11 at intervals, and the electrodes 12 are provided, for example, on a silver film formed on the insulating substrate 11 and on the silver film. It is formed by solder.
【００２０】遮断路１３は、銀等の被膜からなり、一対
の電極１２間に接続された状態で、絶縁基板１１上に形
成されている。そして、この遮断路１３には、両側縁部
１３ａにＶ字状の傾斜部を設けて、一部が細幅となった
細幅部１３ｂが形成され、この遮断路１３は、一対の電
極１２間に所定値以上の電流が流れると、細幅部１３ｂ
が切断して、電路が遮断されるようになっている。ま
た、遮断路１３は、膜厚と細幅部１３ｂの幅を変更する
ことによって、所望の遮断電流値を得るようになってい
る。なお、この遮断路１３は、電極１２の銀被膜と同一
材料で、同一工程で形成しても良く、また、側縁部１３
ａの傾斜部は、片側のみでも良い。また、保護膜１５
は、絶縁材からなり、この保護膜１５は、遮断路１３を
覆った状態で、絶縁基板１１上に形成されている。The cutoff path 13 is made of a coating of silver or the like, and is formed on the insulating substrate 11 while being connected between the pair of electrodes 12. The cut-off path 13 is provided with a V-shaped inclined portion at both side edges 13a to form a narrow portion 13b having a narrow width. When a current equal to or more than a predetermined value flows between the narrow portions 13b
Is cut and the electric circuit is cut off. Further, the cut-off path 13 obtains a desired cut-off current value by changing the film thickness and the width of the narrow portion 13b. The cutoff path 13 may be formed of the same material as the silver coating of the electrode 12 in the same step.
The inclined portion a may be provided on only one side. Also, the protective film 15
Is formed of an insulating material, and the protective film 15 is formed on the insulating substrate 11 so as to cover the cutoff path 13.
【００２１】このようなヒューズＨは、一対の電極１２
の内の一方の電極１２が前記リベット接続部９ａと導通
する第１リード９ｂに接続され、また、他方の電極１２
が第２のリード９ｃとが接続されると共に、リベット８
と外部電極６とが電気的に接続されている。一方、固定
部９ｅは独立しており、他と電気的に接続されていな
い。そして、保持体５は、スポット溶接等により固定部
９ｅが電池蓋４の底板４ａに取り付けられている。Such a fuse H includes a pair of electrodes 12.
Is connected to a first lead 9b which is electrically connected to the rivet connection portion 9a.
Is connected to the second lead 9c and the rivet 8
And the external electrode 6 are electrically connected. On the other hand, the fixing portion 9e is independent and is not electrically connected to the other. The fixing portion 9e of the holder 5 is attached to the bottom plate 4a of the battery lid 4 by spot welding or the like.
【００２２】また、外部電極６は鉄板等の金属板にニッ
ケルメッキが施され、外形が略矩形の電極部６ａと、こ
の電極部６ａの両側縁から下方に折り曲げられた脚部６
ｂ、６ｂと、保持体５の電極接続部９ｅと接続される接
続部６ｃとが設けられている。 そして、外部電極６
は、電池の電路遮断部品Ｔをカバー部材Ｋに組み込んだ
とき、電池の正極となり、この正極には、第２リード部
９ｃを介してヒューズＨの他方の電極１２が接続されて
いる。前記ダイヤフラム部Ｄ上に配設されたヒューズＨ
は、前述したように、セラミックス等の脆い絶縁材から
なる絶縁基板１１上に、電極１２と、電極１２間に設け
られた遮断路１３と、絶縁基板１１に設けられ、応力集
中部を形成する切り欠き部１１ｂと、遮断路１３上に設
けられた保護膜１５とで形成されている。The external electrode 6 is formed by plating a metal plate such as an iron plate with nickel, and has an electrode portion 6a having a substantially rectangular outer shape, and leg portions 6 bent downward from both side edges of the electrode portion 6a.
b, 6b, and a connection portion 6c connected to the electrode connection portion 9e of the holder 5 are provided. And the external electrode 6
Becomes the positive electrode of the battery when the electric circuit breaking component T of the battery is incorporated into the cover member K, and the other electrode 12 of the fuse H is connected to this positive electrode via the second lead portion 9c. The fuse H provided on the diaphragm D
Are formed on the insulating substrate 11 made of a brittle insulating material such as ceramics, as described above, to form the electrodes 12, the cutoff paths 13 provided between the electrodes 12, and the stress concentration portions provided on the insulating substrate 11. It is formed of a notch 11 b and a protective film 15 provided on the cutoff path 13.
【００２３】前記ヒューズＨは両端部の幅広の電極１２
が、図２に示すように、保持体５の第１、第２リード９
ｂ、９ｃに両持ち支持され、第１、第２リード９ｂ、９
ｃと電極１２とが半田で接続されている。そして、第
１、第２リード９ｂ、９ｃ間には、遮断路１３からなる
電路が形成されている。The fuse H has wide electrodes 12 at both ends.
However, as shown in FIG. 2, the first and second leads 9 of the holder 5
b, 9c, the first and second leads 9b, 9
c and the electrode 12 are connected by solder. Then, an electric circuit composed of the cutoff path 13 is formed between the first and second leads 9b and 9c.
【００２４】また、リベット８はアルミ製で、図１に示
すように、先端側をやや細くした円柱部８ａと、下端に
設けられた鍔部８ｂと、鍔部８ｂの外周に沿って上方に
突設された環状突条部８ｃと、鍔部８ｂから横方向に突
設された接続部８ｄとから成り、この接続部８ｄには前
記端子部２の接続片部２ａが溶着されるようになってい
る。また、絶縁体３、電池蓋４、および保持体５は、リ
ベット８の円柱部８ａの先端がカシメられて一体化さ
れ、このカシメ部分が保持体５のリベット接続部９ａに
接続されている。従って、外部電極６はヒューズＨの遮
断路１３等の電路を介して端子部２と電気的に接続され
ている。The rivet 8 is made of aluminum, and as shown in FIG. 1, a cylindrical portion 8a having a slightly thinner tip, a flange 8b provided at the lower end, and an upper portion extending along the outer periphery of the flange 8b. An annular ridge 8c protrudes and a connecting portion 8d protruding laterally from the flange 8b. The connecting piece 8a of the terminal portion 2 is welded to the connecting portion 8d. Has become. The insulator 3, the battery lid 4, and the holder 5 are integrated by caulking the tip of the cylindrical portion 8a of the rivet 8, and the caulked portion is connected to the rivet connection 9a of the holder 5. Therefore, the external electrode 6 is electrically connected to the terminal portion 2 via an electric path such as the cutoff path 13 of the fuse H.
【００２５】前述したような電路遮断部品Ｔは、例えば
リチウムイオン２次電池等から成る電池の開放されたカ
バー部材Ｋの上方から、電路遮断部品Ｔを挿入し、電池
蓋４の鍔部４ｊをカバー部材Ｋの嵌合部全周に亘って溶
接等で接続し、カバー部材Ｋの側面に設けられた電解液
注入孔（図示せず）から電解液を注入した後、当該注入
孔を溶接等で塞ぐことで、カバー部材Ｋの内部が密閉さ
れる。As described above, the circuit breaker T is inserted from above the open cover member K of a battery such as a lithium ion secondary battery, and the flange 4j of the battery cover 4 is removed. The entire circumference of the fitting portion of the cover member K is connected by welding or the like, and after the electrolyte is injected from an electrolyte injection hole (not shown) provided on the side surface of the cover member K, the injection hole is welded or the like. By closing with, the inside of the cover member K is sealed.
【００２６】そして、このような電池用圧力遮断センサ
を使用した電池を電気機器に使用した場合、使用途上に
おいて所定値以上の電流が流れると、ヒューズＨの遮断
路１３が遮断するため、電気機器に使用されているＩＣ
部品等が破損するということがない。When a battery using such a battery pressure cut-off sensor is used in electric equipment, if a current of a predetermined value or more flows during use, the cutoff path 13 of the fuse H is cut off. IC used for
There is no damage to parts and the like.
【００２７】また、本発明の電池用圧力遮断センサを使
用した電池を充電するときの電流の経路は、外部電極
（正極）６から順次、第２リード９ｃ、ヒューズＨ、第
１リード９ｂ、リベット８、端子部２を経て、電池内部
の発電素子（図示せず）に導出される。また、このよう
な電池に、過充電が行われたり、規定された電流よりも
大きな電流で充電が行われたりすると、電池内部に異常
が発生し電池内部の圧力や温度が異常に上昇する。The current path for charging a battery using the battery pressure cut-off sensor of the present invention is, in order from the external electrode (positive electrode) 6, a second lead 9c, a fuse H, a first lead 9b, a rivet. 8, through the terminal portion 2, is led out to a power generating element (not shown) inside the battery. Further, if such a battery is overcharged or charged with a current larger than a specified current, an abnormality occurs inside the battery, and the pressure and temperature inside the battery rise abnormally.
【００２８】すると、電池の電路遮断部品Ｔに電池内部
の上昇した内圧が伝わり、この上昇した電池内圧が、絶
縁体３の通気孔３ｃ、３ｃを介してダイヤフラム部Ｄ
と、開口３ｅ、３ｅを介して安全弁部Ｚとに伝わる。そ
して、電池内圧が所定の圧力に達すると、感圧手段であ
るダイヤフラム部Ｄは薄肉形成された連結部４ｄが、図
３の状態から図４に示すように、一気に上方に反転す
る。Then, the increased internal pressure inside the battery is transmitted to the electric circuit interrupting component T of the battery, and the increased internal pressure of the battery is transmitted to the diaphragm portion D through the ventilation holes 3c, 3c of the insulator 3.
To the safety valve portion Z via the openings 3e and 3e. Then, when the internal pressure of the battery reaches a predetermined pressure, the diaphragm portion D serving as the pressure sensing means causes the thinly formed connecting portion 4d to be turned upward at a stretch from the state of FIG. 3 as shown in FIG.
【００２９】この連結部４ｄの一気の反転で、上方に位
置するヒューズＨの絶縁基板１１の応力集中部である切
り欠き部１１ｂの下面にダイヤフラム部Ｄの凸部４ｅが
衝突し、絶縁基板１１が切り欠き部１１ｂから破断され
る。この絶縁基板１１の破断により遮断路１３の電路が
切断され、リード９の第１、第２リード９ｂ、９ｃ間の
電路が遮断されると共に、外部電極６と電池内の発電素
子（図示せず）間の電路が遮断され、電池への充電が停
止される。それにより、電池内部の圧力上昇が抑えら
れ、電池の破裂等による障害を未然に防止することがで
きる。With the sudden reversal of the connecting portion 4d, the convex portion 4e of the diaphragm portion D collides with the lower surface of the notch portion 11b which is the stress concentration portion of the insulating substrate 11 of the fuse H located above, and the insulating substrate 11 From the notch 11b. The breaking of the insulating substrate 11 cuts off the electric path of the cutoff path 13, cuts off the electric path between the first and second leads 9 b and 9 c of the lead 9, and also forms the external electrode 6 and a power generation element (not shown) in the battery. ) Is interrupted, and charging of the battery is stopped. As a result, a rise in the pressure inside the battery can be suppressed, and a failure such as a rupture of the battery can be prevented.
【００３０】また、もしも前記ヒューズＨを破断して電
路を遮断しても、電池内部の電解液の影響等で電池内圧
が更に上昇するような場合には、電池蓋４の安全弁部Ｚ
の薄肉に形成されている連結部４ｇを破断して、この破
断部分から電池内の高圧力の気体を開口５ｄを経由し
て、電池の外部に排出することができ、電池の電路遮断
部品Ｔは二重の安全対策がなされている。そして、例え
ば、電池の電路遮断部品Ｔの動作圧力は、４〜１０気圧
の範囲でダイヤフラム４ｄが一気に反転して動作し、１
０〜２０気圧の範囲で安全弁部Ｚの連結部４ｇが破断さ
れるように設定されている。If the internal pressure of the battery further increases due to the effect of the electrolyte inside the battery even if the fuse H is broken and the electric circuit is cut off, the safety valve portion Z of the battery lid 4 is also provided.
The thin connection portion 4g is broken, and the high-pressure gas in the battery can be discharged from the broken portion to the outside of the battery through the opening 5d. Has double safety measures. Then, for example, the operating pressure of the electric circuit interrupting component T of the battery is such that the diaphragm 4d is turned over at once in the range of 4 to 10 atm, and
The connection portion 4g of the safety valve portion Z is set to be broken in the range of 0 to 20 atmospheres.
【００３１】また、図６は本発明の電池用圧力遮断セン
サの第２実施例に係るヒューズＨを示し、この第２実施
例は、前記第１実施例と細幅部１３ｂの構成が異なり、
この第２実施例では、両側縁部１３ａに凹部を設けて、
一部が細幅となった細幅部１３ｂが形成されたものであ
る。その他の構成は前記第１実施例と同様であるので、
同一部品に同一番号を付し、ここではその説明を省略す
る。なお、側縁部１３ａの片側のみに凹部を設けても良
い。FIG. 6 shows a fuse H according to a second embodiment of the battery pressure cut-off sensor of the present invention. This second embodiment differs from the first embodiment in the configuration of the narrow portion 13b.
In the second embodiment, a concave portion is provided on both side edge portions 13a,
A narrow portion 13b, which is partially narrow, is formed. Other configurations are the same as those of the first embodiment.
The same parts are denoted by the same reference numerals, and description thereof is omitted here. Note that a concave portion may be provided only on one side of the side edge portion 13a.
【００３２】また、図７は本発明の電池用圧力遮断セン
サの第３実施例に係るヒューズＨを示し、この第３実施
例は、前記第１、第２実施例と細幅部１３ｂの構成が異
なり、この第３実施例では、両側縁部１３ａに凹凸部を
設けて、一部が細幅となった細幅部１３ｂが形成された
ものである。その他の構成は前記実施例と同様であるの
で、同一部品に同一番号を付し、ここではその説明を省
略する。なお、側縁部１３ａの片側のみに凹凸部を設け
ても良い。FIG. 7 shows a fuse H according to a third embodiment of the battery pressure cut-off sensor of the present invention. This third embodiment differs from the first and second embodiments in the configuration of the narrow portion 13b. However, in the third embodiment, a concavo-convex portion is provided on both side edge portions 13a, and a narrow portion 13b having a narrow portion is formed. Other configurations are the same as those of the above-described embodiment, and therefore, the same components are denoted by the same reference numerals, and description thereof is omitted here. Note that the uneven portion may be provided only on one side of the side edge portion 13a.
【００３３】そして、このような第２，第３実施例に示
すヒューズＨにおいても、前記第１実施例と同様に、電
池を電気機器に使用した場合、使用途上において所定値
以上の電流が流れると、ヒューズＨの遮断路１３が遮断
するため、電気機器に使用されているＩＣ部品等が破損
するということがなく、また、電池の過充電に際して
は、感圧手段であるダイヤフラム部Ｄによって絶縁基板
１１が破断されて、遮断路１３の電路が切断され、電池
への充電が停止されるようになるものである。Also, in the fuse H shown in the second and third embodiments, when a battery is used in an electric device, a current of a predetermined value or more flows during use, as in the first embodiment. In addition, since the cutoff path 13 of the fuse H is cut off, the IC parts and the like used in the electric equipment are not damaged, and when the battery is overcharged, it is insulated by the diaphragm D which is a pressure sensing means. The substrate 11 is broken, the electric path of the cutoff path 13 is cut, and charging of the battery is stopped.
【００３４】[0034]
【発明の効果】本発明の電池用圧力遮断センサは、一対
の電極１２間に接続され、所定値以上の電流が流れると
電路を遮断する導電体からなる遮断路１３とを絶縁基板
１１上に形成して構成されたヒューズＨが設けられ、主
に充電時にはカバー部材の内圧上昇による感圧手段Ｄの
変位によって、絶縁基板１１が破断して、遮断路１３の
電路が遮断すると共に、主に放電時には所定値以上の電
流が流れると、遮断路１３の電路が遮断するようにした
ため、電池を電気機器に使用した場合、使用途上におい
て所定値以上の電流が流れると、ヒューズＨの遮断路１
３が遮断して、電気機器に使用されているＩＣ部品等が
破損や発火することの無い電池用圧力遮断センサを提供
できる。更に、充、放電時の何れの場合でも危険性を小
さくでき、保護回路を大幅に簡素化でき、ひいては携帯
型機器で重要な要素である小型、軽量、低コスト化が図
れる。According to the present invention, a pressure cutoff sensor for a battery is connected between a pair of electrodes 12 and a cutoff path 13 made of a conductor for cutting off an electric path when a current of a predetermined value or more flows on the insulating substrate 11. A fuse H formed and formed is provided, and mainly during charging, the insulating substrate 11 is broken by the displacement of the pressure sensing means D due to an increase in the internal pressure of the cover member, and the electric circuit of the cutoff path 13 is cut off. At the time of discharging, when a current equal to or more than a predetermined value flows, the electric circuit of the cut-off path 13 is cut off.
3 can provide a pressure cutoff sensor for a battery in which IC parts and the like used in the electric device are not damaged or fired. Further, the danger can be reduced in any case of charging and discharging, and the protection circuit can be greatly simplified, which can reduce the size, weight, and cost, which are important elements in a portable device.
【００３５】また、遮断路１３には、一部が細幅となっ
た細幅部１３ｂを設けたため、細幅部１３ｂの膜厚と細
幅部１３ｂの幅を変更することによって、所望の遮断電
流値が得られて、精度の良好なヒューズＨを備えた電池
用圧力遮断センサを提供できる。Further, since the cut-off path 13 is provided with a narrow portion 13b which is partially narrow, a desired cut-off can be achieved by changing the thickness of the narrow portion 13b and the width of the narrow portion 13b. A current value is obtained, and it is possible to provide a battery pressure cutoff sensor having a highly accurate fuse H.
【００３６】また、遮断路１３には、その側縁部１３ａ
にＶ字状の傾斜部を設けて、細幅部１３ｂを形成したた
め、その構成が簡単で、細幅部１３ｂの膜厚と細幅部１
３ｂの幅を変更することによって、所望の遮断電流値が
得られて、精度の良好なヒューズＨを備えた電池用圧力
遮断センサを提供できる。The cut-off path 13 has a side edge 13a.
Is formed with a V-shaped inclined portion to form the narrow portion 13b, the configuration is simple, and the film thickness of the narrow portion 13b and the narrow portion 1
By changing the width of 3b, a desired cutoff current value can be obtained, and a battery pressure cutoff sensor provided with a highly accurate fuse H can be provided.
【００３７】また、遮断路１３には、その側縁部１３ａ
に凹凸部を設けて、細幅部１３ｂを形成したため、その
構成が簡単で、細幅部１３ｂの膜厚と細幅部１３ｂの幅
を変更することによって、所望の遮断電流値が得られ
て、精度の良好なヒューズＨを備えた電池用圧力遮断セ
ンサを提供できる。The cut-off path 13 has a side edge 13a.
Since the narrow portion 13b is formed by providing a concave and convex portion on the surface, the structure is simple, and a desired breaking current value can be obtained by changing the film thickness of the narrow portion 13b and the width of the narrow portion 13b. Thus, it is possible to provide a battery pressure cutoff sensor provided with a highly accurate fuse H.
【００３８】また、遮断路１３上には、絶縁材からなる
保護膜１５を形成したため、遮断路１３上に埃等の付着
が無く、安全で、確実なヒューズＨを備えた電池用圧力
遮断センサを提供できる。Further, since the protective film 15 made of an insulating material is formed on the cutoff path 13, there is no adhesion of dust and the like on the cutoff path 13, and the pressure cutoff sensor for battery is provided with a safe and reliable fuse H. Can be provided.
【００３９】また、絶縁基板１１には、応力集中部を設
けたため、絶縁基板１１の破断が容易となり、確実な電
路の遮断を行うことができる。Since the insulating substrate 11 is provided with the stress concentration portion, the insulating substrate 11 is easily broken, and the electric circuit can be reliably cut off.
【００４０】また、絶縁基板１１の側部１１ａに切り欠
き部１１ｂを設けて応力集中部を形成したため、その構
成が簡単で、且つ、破断が容易で安価な絶縁基板１１を
備えた電池用圧力遮断センサを提供できる。Further, since the notch portion 11b is provided in the side portion 11a of the insulating substrate 11 to form the stress concentration portion, the pressure for the battery provided with the insulating substrate 11 which has a simple structure, is easy to break, and is inexpensive. An interruption sensor can be provided.
【図１】本発明の電池用圧力遮断センサの第１実施例の
要部の分解斜視図。FIG. 1 is an exploded perspective view of a main part of a first embodiment of a battery pressure cutoff sensor according to the present invention.
【図２】本発明の電池用圧力遮断センサの第１実施例の
要部の断面図。FIG. 2 is a cross-sectional view of a main part of a first embodiment of the battery pressure cut-off sensor of the present invention.
【図３】本発明の電池用圧力遮断センサの動作を示す説
明図。FIG. 3 is an explanatory view showing the operation of the battery pressure cutoff sensor of the present invention.
【図４】本発明の電池用圧力遮断センサの動作を示す説
明図。FIG. 4 is an explanatory view showing the operation of the battery pressure cutoff sensor of the present invention.
【図５】本発明の電池用圧力遮断センサの第１実施例の
係るヒューズの斜視図。FIG. 5 is a perspective view of a fuse according to a first embodiment of the battery pressure cut-off sensor of the present invention.
【図６】本発明の電池用圧力遮断センサの第２実施例の
係るヒューズの斜視図。FIG. 6 is a perspective view of a fuse according to a second embodiment of the pressure cutoff sensor for a battery according to the present invention.
【図７】本発明の電池用圧力遮断センサの第２実施例の
係るヒューズの斜視図。FIG. 7 is a perspective view of a fuse according to a second embodiment of the pressure cutoff sensor for a battery according to the present invention.
Ｔ 本発明の電池の電路遮断部品 ２ 端子部 ２ａ 接続片部 ２ｂ 平坦部 ２ｃ 開口部 ３ 絶縁体 ３ａ 円筒部 ３ｂ 凹部 ３ｃ 通気口 ３ｄ 孔 ３ｅ 開口 ４ 電池蓋 ４ａ 底板 ４ｂ 突条部 ４ｃ 孔部 Ｄ 感圧手段であるダイヤフラム部 ４ｄ 連結部 ４ｅ 凸部 Ｚ 安全弁部 ４ｆ 突出部 ４ｇ 連結部 ４ｈ 突起部 ４ｊ 鍔部 ４ｋ 凹部 ５ 保持体 ５ａ 貫通孔 ５ｂ 開口部 ５ｃ 台座部 ５ｄ 開口 ５ｅ 切り欠き部 ５ｆ 孔部 ５ｇ 側面 ６ 外部電極 ６ａ 電極部 ６ｂ 脚部 ６ｃ 接続部 ８ リベット ８ａ 円柱部 ８ｂ 鍔部 ８ｃ 環状突条部 ８ｄ 接続部 ９ リード ９ａ リベット接続部 ９ｂ 第１リード ９ｃ 第２リード ９ｄ 電極接続部 ９ｅ 固定部 Ｈ ヒューズ １１ 絶縁基板 １１ａ 側部 １１ｂ 応力集中部である切り欠き部 １２ 電極 １３ 遮断路 １３ａ 側縁部 １３ｂ 細幅部 １５ 保護膜 T Circuit blockage part of battery of the present invention 2 Terminal part 2a Connecting piece 2b Flat part 2c Opening 3 Insulator 3a Cylindrical part 3b Concave part 3c Vent 3d hole 3e opening 4 Battery lid 4a Bottom plate 4b Ridge 4c Hole D Diaphragm part 4d connecting part 4e convex part Z safety valve part 4f projecting part 4g connecting part 4h projecting part 4j flange part 4k concave part 5 holder 5a through hole 5b opening part 5c pedestal part 5d opening 5e notch part 5f Part 5g Side surface 6 External electrode 6a Electrode part 6b Leg 6c Connection part 8 Rivet 8a Column part 8b Flange part 8c Annular ridge 8d Connection part 9 Lead 9a Rivet connection part 9b First lead 9c Second lead 9d Electrode connection part 9e Fixing portion H Fuse 11 Insulating substrate 11a Side portion 11b Notch portion as stress concentration portion 12 Electrode 13 Cutoff path 13a Side edge portion 3b narrow section 15 protection film
Claims (7)
の電極間に接続され、所定値以上の電流が流れると電路
を遮断する導電体からなる遮断路とを絶縁基板上に形成
して構成されたヒューズと、発電素子を収納し、前記ヒ
ューズを取り付けたカバー部材とを備え、前記カバー部
材には、このカバー部材の内圧の上昇に応じて変位する
感圧手段を設け、前記カバー部材に取り付けられた前記
ヒューズの一方の前記電極には、前記発電素子の正極、
或いは負極が接続され、前記カバー部材の内圧上昇によ
る前記感圧手段の変位によって、前記絶縁基板が破断し
て、前記遮断路の電路が遮断すると共に、所定値以上の
電流が流れると、前記遮断路の電路が遮断するようにし
たことを特徴とする電池用圧力遮断センサ。At least one pair of electrodes, and a cutoff path formed of a conductor connected between the pair of electrodes and configured to cut off an electric path when a current of a predetermined value or more flows are formed on an insulating substrate. And a cover member that houses the power generating element and has the fuse attached thereto. The cover member is provided with pressure-sensitive means that is displaced in accordance with an increase in the internal pressure of the cover member, and is attached to the cover member. A positive electrode of the power generating element,
Alternatively, when the negative electrode is connected and the pressure-sensitive means is displaced due to an increase in the internal pressure of the cover member, the insulating substrate is broken, and the electric circuit of the cutoff path is cut off. A pressure interruption sensor for a battery, wherein an electric circuit of a road is interrupted.
幅部を設けたことを特徴とする請求項１記載の電池用圧
力遮断センサ。2. The battery pressure interruption sensor according to claim 1, wherein the interruption path is provided with a narrow portion that is partially narrow.
傾斜部を設けて、前記細幅部を形成したことを特徴とす
る請求項２記載の電池用圧力遮断センサ。3. The pressure-cutoff sensor for a battery according to claim 2, wherein the cutoff path is provided with a V-shaped inclined portion at a side edge thereof to form the narrow portion.
設けて、前記細幅部を形成したことを特徴とする請求項
２記載の電池用圧力遮断センサ。4. The pressure cutoff sensor for a battery according to claim 2, wherein the cutoff path is provided with an uneven portion at a side edge thereof to form the narrow portion.
膜を形成したことを特徴とする請求項１から４の何れか
に記載の電池用圧力遮断センサ。5. The pressure-cutoff sensor for a battery according to claim 1, wherein a protective film made of an insulating material is formed on the cutoff path.
ことを特徴とする請求項１から５の何れかに記載の電池
用圧力遮断センサ。6. The battery pressure cutoff sensor according to claim 1, wherein a stress concentration portion is provided on the insulating substrate.
て前記応力集中部を形成したことを特徴とする請求項６
記載の電池用圧力遮断センサ。7. A stress concentration portion formed by providing a cutout portion on a side portion of the insulating substrate.
The pressure cutoff sensor for a battery according to any one of the preceding claims.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001010899A JP2002216743A (en) | 2001-01-19 | 2001-01-19 | Pressure cutoff sensor for battery |
| TW090130673A TW531910B (en) | 2001-01-19 | 2001-12-11 | Pressure cutoff sensor for battery |
| KR10-2002-0003052A KR100443775B1 (en) | 2001-01-19 | 2002-01-18 | Pressure breaking sensor for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001010899A JP2002216743A (en) | 2001-01-19 | 2001-01-19 | Pressure cutoff sensor for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002216743A true JP2002216743A (en) | 2002-08-02 |
Family
ID=18878125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001010899A Withdrawn JP2002216743A (en) | 2001-01-19 | 2001-01-19 | Pressure cutoff sensor for battery |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2002216743A (en) |
| KR (1) | KR100443775B1 (en) |
| TW (1) | TW531910B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924239A (en) * | 2009-06-16 | 2010-12-22 | 三星Sdi株式会社 | Secondary cell |
| JP2011258550A (en) * | 2010-06-11 | 2011-12-22 | Sb Limotive Co Ltd | Secondary battery |
| CN102867933A (en) * | 2011-07-07 | 2013-01-09 | Sb锂摩托有限公司 | Rechargeable battery |
| JP2013161789A (en) * | 2012-02-01 | 2013-08-19 | Samsung Sdi Co Ltd | Secondary battery |
| JP2013175472A (en) * | 2005-12-22 | 2013-09-05 | Lg Chem Ltd | Weldless battery pack using press-fit type rivet |
| CN103779532A (en) * | 2012-10-19 | 2014-05-07 | 丰田自动车株式会社 | Current interrupting device of a sealed battery, sealed battery having current interrupting device, and manufacturing method of sealed battery |
| US8877361B2 (en) | 2009-09-01 | 2014-11-04 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| JP2014220106A (en) * | 2013-05-08 | 2014-11-20 | 株式会社豊田自動織機 | Power storage device |
| US9012050B2 (en) | 2011-07-26 | 2015-04-21 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| WO2015056511A1 (en) * | 2013-10-16 | 2015-04-23 | 株式会社豊田自動織機 | Current breaker and storage device using the same |
| US9054371B2 (en) | 2011-11-17 | 2015-06-09 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| US9246140B2 (en) | 2009-07-09 | 2016-01-26 | Samsung Sdi Co., Ltd. | Rechargeable battery with a cap assembly having a first tab located outside of the case |
| US9478774B2 (en) | 2010-12-02 | 2016-10-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| US9634299B2 (en) | 2011-09-06 | 2017-04-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| WO2017188533A1 (en) * | 2016-04-26 | 2017-11-02 | 삼성에스디아이 주식회사 | Rechargeable battery having membrane |
| CN108120867A (en) * | 2018-01-30 | 2018-06-05 | 天津锦泰勤业精密电子有限公司 | Overcharge test simulator and analog detecting method |
| CN112236898A (en) * | 2018-06-20 | 2021-01-15 | 日本汽车能源株式会社 | Battery module and battery pack |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100807029B1 (en) * | 2006-03-28 | 2008-02-25 | 삼성에스디아이 주식회사 | Secondary battery |
| DE102016107971A1 (en) * | 2015-05-14 | 2016-11-17 | Toyota Jidosha Kabushiki Kaisha | secondary battery |
| CN105977411B (en) * | 2016-06-27 | 2019-07-09 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap and secondary cell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05166454A (en) * | 1991-12-11 | 1993-07-02 | Hitachi Chem Co Ltd | Chip type fuse |
| JP2720787B2 (en) * | 1994-03-03 | 1998-03-04 | 日本電池株式会社 | Safety device for storage battery and sealed storage battery provided with the same |
| US5609972A (en) * | 1996-03-04 | 1997-03-11 | Polystor Corporation | Cell cap assembly having frangible tab disconnect mechanism |
| JPH10208726A (en) * | 1997-01-28 | 1998-08-07 | Japan Storage Battery Co Ltd | Electric current shut off apparatus and battery having the apparatus built-in |
-
2001
- 2001-01-19 JP JP2001010899A patent/JP2002216743A/en not_active Withdrawn
- 2001-12-11 TW TW090130673A patent/TW531910B/en not_active IP Right Cessation
-
2002
- 2002-01-18 KR KR10-2002-0003052A patent/KR100443775B1/en not_active IP Right Cessation
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013175472A (en) * | 2005-12-22 | 2013-09-05 | Lg Chem Ltd | Weldless battery pack using press-fit type rivet |
| CN101924239A (en) * | 2009-06-16 | 2010-12-22 | 三星Sdi株式会社 | Secondary cell |
| US9246140B2 (en) | 2009-07-09 | 2016-01-26 | Samsung Sdi Co., Ltd. | Rechargeable battery with a cap assembly having a first tab located outside of the case |
| US8877361B2 (en) | 2009-09-01 | 2014-11-04 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| JP2011258550A (en) * | 2010-06-11 | 2011-12-22 | Sb Limotive Co Ltd | Secondary battery |
| US9099732B2 (en) | 2010-06-11 | 2015-08-04 | Samsung Sdi Co., Ltd. | Rechargeable battery having a fuse with an insulating blocking member |
| US9478774B2 (en) | 2010-12-02 | 2016-10-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| JP2013020965A (en) * | 2011-07-07 | 2013-01-31 | Sb Limotive Co Ltd | Secondary battery |
| CN102867933A (en) * | 2011-07-07 | 2013-01-09 | Sb锂摩托有限公司 | Rechargeable battery |
| US9012050B2 (en) | 2011-07-26 | 2015-04-21 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| US9634299B2 (en) | 2011-09-06 | 2017-04-25 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| US9054371B2 (en) | 2011-11-17 | 2015-06-09 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| EP2624327B1 (en) * | 2012-02-01 | 2020-09-09 | Samsung SDI Co., Ltd. | Rechargeable battery |
| JP2013161789A (en) * | 2012-02-01 | 2013-08-19 | Samsung Sdi Co Ltd | Secondary battery |
| CN103779532A (en) * | 2012-10-19 | 2014-05-07 | 丰田自动车株式会社 | Current interrupting device of a sealed battery, sealed battery having current interrupting device, and manufacturing method of sealed battery |
| JP2014220106A (en) * | 2013-05-08 | 2014-11-20 | 株式会社豊田自動織機 | Power storage device |
| US9478377B2 (en) | 2013-10-16 | 2016-10-25 | Kabushiki Kaisha Toyota Jidoshokki | Current interruption device and electricity storage device using the same |
| CN105637678A (en) * | 2013-10-16 | 2016-06-01 | 株式会社丰田自动织机 | Current breaker and storage device using the same |
| WO2015056511A1 (en) * | 2013-10-16 | 2015-04-23 | 株式会社豊田自動織機 | Current breaker and storage device using the same |
| WO2017188533A1 (en) * | 2016-04-26 | 2017-11-02 | 삼성에스디아이 주식회사 | Rechargeable battery having membrane |
| US10763489B2 (en) | 2016-04-26 | 2020-09-01 | Samsung Sdi Co., Ltd. | Rechargeable battery having membrane |
| CN108120867A (en) * | 2018-01-30 | 2018-06-05 | 天津锦泰勤业精密电子有限公司 | Overcharge test simulator and analog detecting method |
| CN108120867B (en) * | 2018-01-30 | 2023-08-25 | 浙江锦泰电子有限公司 | Overcharge detection simulation device and simulation detection method |
| CN112236898A (en) * | 2018-06-20 | 2021-01-15 | 日本汽车能源株式会社 | Battery module and battery pack |
| CN112236898B (en) * | 2018-06-20 | 2023-08-08 | 日本汽车能源株式会社 | Battery module |
| US11749871B2 (en) | 2018-06-20 | 2023-09-05 | Vehicle Energy Japan Inc. | Battery module and battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100443775B1 (en) | 2004-08-09 |
| KR20020062217A (en) | 2002-07-25 |
| TW531910B (en) | 2003-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002216743A (en) | Pressure cutoff sensor for battery | |
| TW432734B (en) | Secondary battery | |
| KR100867068B1 (en) | Non-aqueous electrolytic secondary battery | |
| US7537720B2 (en) | PCM mold and battery having the same | |
| US20050014064A1 (en) | Battery | |
| JP3693844B2 (en) | Battery-sensitive piezoelectric path blocking mechanism | |
| JP3154279B2 (en) | Rechargeable battery | |
| JP2006313741A (en) | Secondary battery | |
| KR20110021208A (en) | Secondary battery | |
| JP2000082457A (en) | Electric/electronic equipment and part safeguard, sealed battery safeguard using it and sealed battery using it | |
| JPH11307080A (en) | Electric path breaking component for battery | |
| JP3220681B2 (en) | Battery with battery protection device | |
| JP4146912B2 (en) | Secondary battery with safety mechanism | |
| JP2001195970A (en) | Fuse and cell using the same | |
| JP3682390B2 (en) | Sealed parts with safety valve | |
| JP3575981B2 (en) | Pressure sensor and method of manufacturing the same | |
| JPH11329402A (en) | Circuit breaking part of battery | |
| JP3154280B2 (en) | Rechargeable battery | |
| JP2000260421A (en) | Pressure sensitive circuit breaking mechanism of battery | |
| JP2001102023A (en) | Sealed member attached with safety valve and method for manufacturing the same | |
| JP2000090902A (en) | Battery and its manufacture | |
| KR102255532B1 (en) | Secondary battery and the method of manufacturing the same | |
| JP3983050B2 (en) | Sealed battery safety device and sealed battery using the same | |
| KR101543239B1 (en) | A fuse of a battery apply shape memory alloy | |
| JPH11329403A (en) | Circuit breaking part of battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040525 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20050804 |