JP2596034B2 - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JP2596034B2 JP2596034B2 JP63009821A JP982188A JP2596034B2 JP 2596034 B2 JP2596034 B2 JP 2596034B2 JP 63009821 A JP63009821 A JP 63009821A JP 982188 A JP982188 A JP 982188A JP 2596034 B2 JP2596034 B2 JP 2596034B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- acid battery
- metal plate
- sealed lead
- plate
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/126—Small-sized flat cells or batteries for portable equipment
-
- 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ポータブル機器等の電源として、使用する
密閉型鉛蓄電池のセル間接続又は端子引出し構造の改良
に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved connection between cells or a terminal lead-out structure of a sealed lead-acid battery used as a power source of a portable device or the like.
従来の技術 従来この種の密閉型鉛蓄電池は、第4図に示すように
正極板1、負極板2、セパレータ3からなる極板群4を
ポリエチレン製の枠体5で囲うとともに、極板群4と接
する内面にエチレンとアクリル酸との共重合体のフィル
ム6をラミネートしたスズメッキ鋼板7,7′2枚の周縁
を枠体5と熱溶着して封口するとともに、正,負極板の
耳部8,8′と金属板のツメ部9,9′とを溶接して金属板7,
7′を出入力端子とし、枠体5に安全弁10を取り付けて
セル11としていた。又、このセルを複数個同一面上に配
列して一体化する際には、第5図の如く隣接するセルの
異極の金属板7,7″同志をリード線12を用いてハンダ付
けを行ない電気的に接続するとともに接着剤付テープ13
によりセル間を固定し、第6図の如く熱収縮性チューブ
14を被せて製品としていた。2. Description of the Related Art Conventionally, a sealed lead-acid battery of this type includes an electrode group 4 composed of a positive electrode plate 1, a negative electrode plate 2 and a separator 3 as shown in FIG. The edges of two tin-plated steel plates 7, 7 'each having a film 6 of a copolymer of ethylene and acrylic acid laminated on the inner surface thereof in contact with the frame 4 are thermally welded to the frame 5 for sealing, and the ears of the positive and negative plates are formed. 8, 8 'and the claws 9, 9' of the metal plate are welded to form a metal plate 7,
A safety valve 10 was attached to the frame 5 to make the cell 11 an input / output terminal 7 '. When arranging a plurality of cells on the same surface and integrating them, as shown in FIG. 5, solder metal plates 7 and 7 ″ of adjacent cells to each other using lead wires 12. Electrical connection and adhesive tape 13
The cells are fixed with a heat-shrinkable tube as shown in FIG.
The product was covered with 14.
なお12′,12″は端子用リード線である。 12 'and 12 "are terminal lead wires.
発明が解決しようとする課題 しかしこのようなリード線のハンダ付けでは、 セ
ル自体が薄くてもリード線の厚みやハンダの盛り上がり
によって、電池厚みが実質的に厚くなる、 ハンダ付
け部のバリやヒゲにより熱収縮性チューブが裂ける、
ハンダ付け時の熱によって金属板7,7′内面のフィル
ムが破損したり、枠体との熱溶着部がはずれる等の問題
があった。Problems to be Solved by the Invention However, in such soldering of the lead wire, even if the cell itself is thin, the thickness of the lead wire and the swelling of the solder substantially increase the battery thickness. Tears the heat-shrinkable tube,
There were problems such as damage to the film on the inner surface of the metal plates 7, 7 'due to the heat at the time of soldering, and detachment of the heat-welded portion with the frame.
課題を解決するための手段 この問題を解決するために、本発明は端子をなす金属
板に、片面に粘着材の付いた銅製金属箔を貼り付け、前
記金属板と金属箔とをシリーズスポット溶接してセル間
を接続するものである。Means for Solving the Problems In order to solve this problem, the present invention attaches a copper metal foil having an adhesive material on one side to a metal plate forming a terminal, and series spot welding the metal plate and the metal foil. To connect the cells.
作用 このような構成であれば、電池の厚みを殆んど厚くす
る事なく、集合電池化でき、かつ集合電池を外装する熱
収縮チューブに害を与える溶接部のヒゲの発生もなく、
金属板内面にラミネートしたフィルムおよび枠体に与え
る熱影響を極力少なくして短時間で溶接する事が可能と
なる。Action With such a configuration, the battery can be made into an assembled battery without increasing the thickness of the battery almost, and there is no generation of a whisker at the welded portion that harms the heat-shrinkable tube that covers the assembled battery,
It is possible to perform welding in a short time while minimizing the thermal effect on the film and the frame body laminated on the inner surface of the metal plate.
実 施 例 以下図面を基に本発明の一実施例を説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
本発明は、従来と同じく第4図に示すように、正極板
1、負極板2、セパレータ3からなる極板群4をポリエ
チレン製の枠体5で囲うとともに、極板群4と接する内
面にエチレンとアクリル酸との共重合体フィルム6をラ
ミネートしたスズメッキ鋼板7,7′2枚の周縁と枠体5
とを熱溶着して封口し、極板耳部8,8′と金属板7,7′の
ツメ部9,9′とを溶接して金属板7,7′を端子とし、枠体
5の一部に安全弁10を取り付けてセル11とし、第1図の
如く3セルを横に並べて隣接する異極同志の金属板7,
7″に厚み35μ巾6mm長さ20mmの粘着材付き銅箔を貼り付
けて第2図の如く,一対の溶接電極16,16′を銅箔につ
けてシリーズスポット溶接(一対の電極を溶接材、すな
わち銅箔に当てるスポット溶接方法)して電気的に接続
するとともに、接着剤付テープ13により同一面上に配置
したセル同志を固定し、第3図の如く熱収縮性チューブ
14を被せて電池とした。According to the present invention, as shown in FIG. 4, the electrode plate group 4 including the positive electrode plate 1, the negative electrode plate 2, and the separator 3 is surrounded by a polyethylene frame 5, and the inner surface in contact with the electrode plate group 4 is formed. Periphery and frame 5 of two tin-plated steel sheets 7, 7 'laminated with a copolymer film 6 of ethylene and acrylic acid
Are welded and sealed, and the lugs 8, 8 'of the electrode plates and the claws 9, 9' of the metal plates 7, 7 'are welded to make the metal plates 7, 7' a terminal. A safety valve 10 is attached to a part to form a cell 11, and three cells are arranged side by side as shown in FIG.
As shown in Fig. 2, a pair of welding electrodes 16, 16 'is attached to the copper foil, and a series spot welding is performed by attaching a pair of welding electrodes 16, 16' to the 7 " That is, a cell is placed on the same surface with a tape 13 with an adhesive, and the heat-shrinkable tube is fixed as shown in FIG.
14 to cover the battery.
一般にスポット溶接の場合、同系列の金属、例えば銅
と黄銅、鉄とニッケルであれは融点や抵抗が接近してい
るために溶接しやすい。従ってスズメッキ鋼板にニッケ
ル板をスポット溶接することは容易であり、1/60秒位短
時間で溶接できるため金属板裏のフィルムへの熱影響を
殆んどない。又スズメッキ鋼板と銅の組み合わせでも鋼
を35μmの厚みの箔にすれば、1/60秒の短時間で銅を瞬
時に加熱すれば散熱することなくスズメッキ鋼板と溶接
することが確認された。又銅はニッケルに比べて電気抵
抗が小さいためその分薄くする事が出来る利点がある。Generally, in the case of spot welding, metals of the same series, for example, copper and brass, and iron and nickel are easy to weld because of their close melting points and resistances. Therefore, it is easy to spot-weld a nickel plate to a tin-plated steel plate, and it can be welded in a short time of about 1/60 second, so that there is almost no thermal effect on the film behind the metal plate. In addition, it was confirmed that even if a combination of a tin-plated steel sheet and copper was used, if the steel was formed into a foil having a thickness of 35 μm, the copper could be instantaneously heated in a short time of 1/60 second and welded to the tin-plated steel sheet without heat dissipation. Further, copper has an advantage that it can be made thinner by its electric resistance since it has a smaller electric resistance than nickel.
しかし、厚さ35μ程度の銅箔の場合には薄く軽い為に
金属板に置いてからスポット溶接するまでに銅箔が移動
してしまう課題があった。よってその対策として粘着材
付き銅箔を予め金属部に貼り付けることによって銅箔の
移動を防止できる。しかしこのように銅箔と金属板の間
に粘着材があると電流が流れないためにダイレクトスポ
ット溶接(一対の電極の一方は被溶着材である金属板、
もう一方は溶接材である銅箔にあてるスポット溶接方
法)では溶接出来ない課題があったが、シリーズ溶接に
より銅箔を短時間で高温に加熱することによって粘着材
は気化され銅箔と金属板の金属同士が接触に更に電流が
流れて抵抗発熱し溶接させることが確認された。また、
一般に異種金属を溶接した場合には、湿度の高い所では
使用中に水分等が浸入して局部電池を作り腐食され易
く、特に厚みの薄い金属箔の場合は腐食によって導通不
良になり易いという課題があったが、本発明の銅箔と金
属板との間では溶接部の周囲に粘着材が有り、水分の浸
入を防止することにより上記課題も解決できた。However, in the case of a copper foil having a thickness of about 35 μm, there is a problem that the copper foil moves from being placed on a metal plate to being spot-welded because it is thin and light. Therefore, movement of the copper foil can be prevented by pasting the copper foil with the adhesive to the metal part as a countermeasure. However, if there is an adhesive between the copper foil and the metal plate, current does not flow, so direct spot welding (one of the pair of electrodes is a metal plate to be welded,
The other was a problem that welding was not possible with the spot welding method applied to the copper foil, which is a welding material. However, by heating the copper foil to a high temperature in a short time by series welding, the adhesive material was vaporized and the copper foil and metal plate It has been confirmed that currents further flow when the metals contact each other, causing resistance heating and welding. Also,
Generally, when dissimilar metals are welded, moisture and the like infiltrate during use in high-humidity areas, causing local batteries to be easily corroded. However, there was an adhesive between the copper foil and the metal plate of the present invention around the welded portion, and the above problem could be solved by preventing infiltration of moisture.
また、図面では説明してないが薄い35μの銅箔を使用
することによってフレキシブル性が有るため、スポット
溶接後折り曲げることが可能であり、重ねても接続材の
厚みにより局部的に厚くなることが無いため、セルを厚
み方向に重ねることも可能となった。Although not described in the drawings, the use of a thin 35 μm copper foil has flexibility, so it is possible to bend after spot welding, and even if overlapped, the thickness may be locally increased due to the thickness of the connection material. Since there was no cell, it became possible to stack cells in the thickness direction.
尚今回の、厚さ35μ、幅6mmの銅箔をセル間接続用と
した場合の溶断電流を測定した結果、100A以上あり、実
用上特に問題が無いことが判明した。In addition, as a result of measuring the fusing current when a copper foil having a thickness of 35 μm and a width of 6 mm was used for connection between cells, it was found that the current was 100 A or more, and there was no particular problem in practical use.
発明の効果 このように本発明によればセル間接続体を箔又は金属
板としてその厚みを薄くすることでセル間接続後の外側
への張り出しを少くして収縮性チューブの破損をなくす
とともに信頼性の高い電池を提供することが可能となっ
た。As described above, according to the present invention, the inter-cell connector is made of a foil or a metal plate to reduce the thickness thereof, thereby reducing the outward protrusion after the inter-cell connection, eliminating breakage of the shrinkable tube and improving reliability. It has become possible to provide a highly reliable battery.
第1図は本発明の一実施例における密閉型鉛蓄電池の集
合した状態を示す斜視図、第2図は本発明におけるセル
間接続体のスポット溶接部の断面図、第3図は熱収縮チ
ューブで外装した本発明の密閉型鉛蓄電池の外観斜視
図、第4図はセルの組立前の斜視図、第5図は従来の電
池を集合した状態の斜視図、第6図は第5図の電池を外
装した際の斜視図である。 1……正極板、2……負極板、3……セパレータ、4…
…極板群、5……枠体、7,7′……金属板、11……セ
ル、14……熱収縮性チューブ、15……銅箔。FIG. 1 is a perspective view showing an assembled state of a sealed lead-acid battery according to one embodiment of the present invention, FIG. 2 is a cross-sectional view of a spot welded portion of an inter-cell connector according to the present invention, and FIG. FIG. 4 is a perspective view of a sealed lead-acid battery of the present invention, which is packaged with a battery, FIG. 4 is a perspective view of a cell before assembling, FIG. 5 is a perspective view of a conventional battery assembled, and FIG. FIG. 3 is a perspective view when a battery is mounted. 1 ... positive plate, 2 ... negative plate, 3 ... separator, 4 ...
... electrode group, 5 ... frame, 7,7 '... metal plate, 11 ... cell, 14 ... heat-shrinkable tube, 15 ... copper foil.
Claims (3)
群を、熱溶着性を有する合成樹脂性枠体で囲うととも
に、極板群と接する内面に熱溶着性を有する合成樹脂性
フィルムまたはシートをラミネートした2枚の金属板の
周縁を前記枠体に熱溶着するとともに、前記正・負極板
と前記金属板とをそれぞれ電気的接続し、金属板の外側
を向いた金属部分を端子としたセルを、複数個同一面上
に配列して、前記金属板と他のセルの金属板とを電気的
接続する密閉型鉛蓄電池であって、前記セル間の金属板
同士の接続材を金属箔とし、前記金属板と金属箔の接続
をスポット溶接したことを特徴とする密閉型鉛蓄電池。An electrode plate group comprising a positive electrode plate, a negative electrode plate, and a separator is surrounded by a synthetic resin frame having heat welding property, and a synthetic resin film having heat welding property on an inner surface in contact with the electrode plate group. The peripheral edges of the two metal plates on which the sheets were laminated were thermally welded to the frame, and the positive / negative plates and the metal plate were electrically connected to each other, and the metal portion facing the outside of the metal plate was referred to as a terminal. A plurality of cells arranged on the same surface to electrically connect the metal plate and the metal plates of the other cells, wherein the connecting material of the metal plates between the cells is made of metal. A sealed lead-acid battery, wherein the connection between the metal plate and the metal foil is spot-welded.
あり、前記金属板に粘着材で貼り付けたことを特徴とす
る請求項1記載の密閉型鉛蓄電池。2. The sealed lead-acid battery according to claim 1, wherein the metal foil is a copper foil having an adhesive material on one surface, and is adhered to the metal plate with an adhesive material.
求項1または2記載の密閉型鉛蓄電池。3. The sealed lead-acid battery according to claim 1, wherein said spot welding is series welding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63009821A JP2596034B2 (en) | 1988-01-20 | 1988-01-20 | Sealed lead-acid battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63009821A JP2596034B2 (en) | 1988-01-20 | 1988-01-20 | Sealed lead-acid battery |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01187761A JPH01187761A (en) | 1989-07-27 |
JP2596034B2 true JP2596034B2 (en) | 1997-04-02 |
Family
ID=11730806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63009821A Expired - Lifetime JP2596034B2 (en) | 1988-01-20 | 1988-01-20 | Sealed lead-acid battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2596034B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10326609A (en) * | 1997-03-26 | 1998-12-08 | Toyota Central Res & Dev Lab Inc | Battery |
JP2002100341A (en) * | 2000-09-21 | 2002-04-05 | Denso Corp | Battery |
DE102008059963B4 (en) * | 2008-12-02 | 2014-11-27 | Daimler Ag | Single cell for a battery and method for its production |
JP5926571B2 (en) * | 2012-02-14 | 2016-05-25 | 川崎重工業株式会社 | Battery module |
JP6111804B2 (en) * | 2013-04-02 | 2017-04-12 | 三洋電機株式会社 | Battery pack |
-
1988
- 1988-01-20 JP JP63009821A patent/JP2596034B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01187761A (en) | 1989-07-27 |
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