JP2537969B2 - Sealed lead acid battery - Google Patents
Sealed lead acid batteryInfo
- Publication number
- JP2537969B2 JP2537969B2 JP63130642A JP13064288A JP2537969B2 JP 2537969 B2 JP2537969 B2 JP 2537969B2 JP 63130642 A JP63130642 A JP 63130642A JP 13064288 A JP13064288 A JP 13064288A JP 2537969 B2 JP2537969 B2 JP 2537969B2
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- electrode plate
- pole
- plate
- acid battery
- 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 - Fee Related
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
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
- H01M50/541—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges for lead-acid accumulators
-
- 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
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (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に使用される密閉
形鉛蓄電池の極柱部の封口構造の改良に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sealing structure of a pole portion of a sealed lead-acid battery used as a power source for portable equipment and the like.
従来の技術 従来、この種の密閉形鉛蓄電池は、第３図に示すよう
な構成であった。第３図において、６′は正極板７′と
負極板８′およびセパレータ９′より成る極板群10′を
とり囲む枠体であり、極板群10′に接する面にポリエチ
レン（以下PEという）やポリプロピレン（以下PPとい
う）フィルムをブリキ板等にラミネートした集電板１′
によって極板群の上下主面部分を挟み込み、集電板１′
と熱溶着することにより極板群10′の周囲を封口してい
た。この構成で電池内圧が上昇すると開弁する安全弁1
1′を備えた枠体３′は表面にエポキシ樹脂やポリオレ
フィン系樹脂をコーティングし枠体６′と集電板１′に
挟まれ熱溶着により液密，気密に封口される極柱であ
る。2. Description of the Related Art Conventionally, this type of sealed lead acid battery has a structure as shown in FIG. In FIG. 3, reference numeral 6'denotes a frame body which surrounds an electrode plate group 10 'composed of a positive electrode plate 7', a negative electrode plate 8'and a separator 9 ', and polyethylene (hereinafter referred to as PE) on the surface in contact with the electrode plate group 10'. ) Or polypropylene (hereinafter referred to as PP) film laminated on a tin plate, etc. 1 '
The upper and lower main surface portions of the electrode plate group are sandwiched by the collector plate 1 '
Then, the periphery of the electrode plate group 10 'was sealed by heat welding. With this configuration, a safety valve that opens when the battery internal pressure rises 1
The frame body 3'provided with 1'is a polar column whose surface is coated with an epoxy resin or a polyolefin resin and which is sandwiched between the frame body 6'and the current collector 1'and sealed by liquid welding and airtightness by heat welding.
発明が解決しようとする課題 このような従来の構成では、極柱部の封口が集電板と
枠体の間に、エポキシ樹脂等をコーティングした極柱を
挟み込み、熱溶着する構成であるため、極柱の形状やコ
ーティングしたエポキシ樹脂等の厚さのバラツキおよび
熱溶着条件の変化等によって、高信頼性の気密状態を保
つことが困難であり、また熱溶着時に極柱に加わる圧力
でコーティングしたエポキシ樹脂等が劣化し、電解液の
リーク防止機能が低下する等の問題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such a conventional configuration, since the sealing of the pole portion is between the current collector plate and the frame body, the pole pillar coated with epoxy resin or the like is sandwiched and heat-welded, It is difficult to maintain a highly reliable airtight state due to variations in the shape of the poles, the thickness of the coated epoxy resin, etc., and changes in the heat welding conditions. Also, coating was performed with the pressure applied to the poles during heat welding. There has been a problem that the epoxy resin and the like are deteriorated and the function of preventing leakage of the electrolytic solution is lowered.
本発明は、このような問題点を解決するもので、折り
曲げた集電板の端子部と極柱を半田付け後、集電板と枠
体との間に極柱部を挟み込んで熱溶着し接着剤充填用ポ
ットを形成して極柱の半田付け部および集電板の端子部
の周囲に接着剤を充填することにより、高信頼性の極柱
封口の密閉形鉛蓄電池とすることを目的としたものであ
る。The present invention solves such a problem, and after soldering the terminal portion of the bent current collector plate and the pole pillar, the pole pillar portion is sandwiched between the current collector plate and the frame body and heat-welded. The purpose is to form a highly reliable sealed lead-acid battery with a sealed pole, by forming an adhesive filling pot and filling the solder around the pole and the terminal of the current collector. It is what
課題を解決するための手段 この問題点を解決するため本発明は、エポキシ樹脂等
をコーティングした極柱の熱溶着による極柱封口法に代
わってあらかじめ折り曲げた金属集電板の端子部と極柱
を半田付し、集電板と枠体との間に極柱下部を挟み込ん
で熱溶着し、接着剤の充填ポットを形成してこの接着剤
充填ポットにエポキシ樹脂等の接着剤を充填することに
より、極柱部を液密，気密に封口する構造としたもので
ある。Means for Solving the Problem In order to solve this problem, the present invention is directed to a terminal portion of a metal current collector plate and a pole column that are bent in advance instead of the pole column sealing method by thermal welding of a pole column coated with an epoxy resin or the like. Soldering, sandwiching the lower part of the pole between the current collector and the frame and heat welding to form an adhesive filling pot, and filling the adhesive filling pot with an adhesive such as epoxy resin. Thus, the pole portion is liquid-tightly and airtightly sealed.
作用 この構成により、耐酸性，耐酸化性および鉛との接着
性に優れるエポキシ樹脂等の接着剤で、極柱周囲を確実
に封口することが可能になり、高信頼性の密閉形鉛蓄電
池が得られることとなる。Function With this configuration, it is possible to reliably seal the periphery of the pole with an adhesive such as an epoxy resin that has excellent acid resistance, oxidation resistance, and adhesion to lead, resulting in a highly reliable sealed lead acid battery. Will be obtained.
実施例 以下、本発明の実施例について、第１図〜第２図を参
照して説明する。第１図は、本発明による極柱封口構造
であり、１は凸部２が極柱３に接し、先端部を折り曲
げ、半田付け等により極柱３の先端に接続された端子部
４を有し、さらに極板５に接する内面にはPEやPP系のフ
ィルムをラミネートした金属集電板である。この金属集
電板１の端子部４と極柱３とは半田付け後、集電板１の
周囲部分のラミネートフィルム面とPPやPEより成る枠体
６の間に極柱３の下部を挟み込んで熱溶着し接着剤の充
填ポット６′を形成して極柱３の半田付け部および集電
板１の端子部４の周囲にエポキシ樹脂等の接着剤を充填
して封口するものである。このような構造では、集電板
１のラミネートフィルム面と折り曲げた端子４との間の
接着剤充填厚さを十分に確保しないと、接着剤が充填さ
れにくく気泡も滞留したりするので必要な接着強度が得
られず、電解液リーク防止機能が低下することが考えら
れ、この端子４と集電板１のラミネートフィルム面との
間隔を十分に確保するたために、集電板１が極柱３に接
する面に凸部２を設けることは有効である。Embodiments Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a pole-column sealing structure according to the present invention, in which a convex portion 2 is in contact with a pole column 3, a tip portion is bent, and a terminal portion 4 connected to the tip of the pole column 3 by soldering or the like is provided. In addition, a metal current collector plate is formed by laminating a PE or PP film on the inner surface in contact with the electrode plate 5. After the terminal portion 4 and the pole 3 of the metal current collector 1 are soldered, the lower portion of the pole 3 is sandwiched between the laminate film surface around the current collector 1 and the frame body 6 made of PP or PE. Is heat-welded to form an adhesive filling pot 6 ', and an adhesive such as an epoxy resin is filled around the soldering portions of the poles 3 and the terminal portions 4 of the collector plate 1 to seal them. In such a structure, unless the adhesive filling thickness between the laminated film surface of the current collector 1 and the bent terminals 4 is sufficiently secured, the adhesive is difficult to fill and air bubbles may remain, which is necessary. It is conceivable that the adhesive strength cannot be obtained, and the electrolyte leakage prevention function may be deteriorated. Since the terminal 4 and the laminate film surface of the current collector plate 1 are sufficiently secured, the current collector plate 1 may be a pole pillar. It is effective to provide the convex portion 2 on the surface in contact with 3.
第２図は、第１図の極柱封口による電池構成を示し正
極板７と負極板８の極柱３と集電板１の一部を折り曲げ
た端子４を半田付け後、枠体６と集電板１のラミネート
面を熱溶着し極板群10の周囲を封口すると同時に、接着
剤充填用ポット６′を形成し、接着剤を充填，硬化後電
解液を注入して安全弁11を装着したものである。FIG. 2 shows a battery configuration by sealing the poles of FIG. 1 and after soldering the poles 3 of the positive electrode plate 7 and the negative electrode plate 8 and the terminal 4 in which a part of the current collector 1 is bent, to the frame body 6. At the same time as the laminated surface of the current collector plate 1 is heat-welded to seal the periphery of the electrode plate group 10 and at the same time an adhesive filling pot 6'is formed, the adhesive is filled and cured, and then an electrolytic solution is injected to attach the safety valve 11. It was done.
このような構成で、集電板１のラミネートフィルム面
と折り曲げた端子４との間隔を0.1mm〜0.5mmに設定し試
作した電池を＋65℃×2H,−40℃×2Hで100サイクルのヒ
ートショック試験を行ない端子部４の漏液発生率を観察
した結果、次表に示すように集電板１のラミネートフィ
ルム面と折り曲げた端子４の間隔を0.3mm以上確保した
電池は、極柱部３および端子４よりの漏液は見られず、
高い信頼性を得ることができた。With such a configuration, the interval between the laminated film surface of the current collector plate 1 and the bent terminal 4 was set to 0.1 mm to 0.5 mm, and the prototype battery was heated at + 65 ° C × 2H, −40 ° C × 2H for 100 cycles. As a result of performing a shock test and observing the leakage generation rate of the terminal portion 4, as shown in the following table, the battery in which the distance between the laminated film surface of the current collector 1 and the bent terminal 4 is 0.3 mm or more is the pole portion. No leakage from 3 and terminal 4,
We were able to obtain high reliability.
発明の効果 以上のように本発明によれば、集電板の一部を折り曲
げた端子と極柱を半田付けし、熱溶着により接着剤充填
用ポットを形成後端子部と極柱部に接着剤を充填封口す
ることで従来のエポキシ樹脂等をコーティングした極柱
を熱溶着して封口する方法に比べて、液密，気密の信頼
性に優れた極柱部を有する密閉形鉛蓄電池を提供するこ
とが可能となるという効果が得られる。 EFFECTS OF THE INVENTION As described above, according to the present invention, the terminal and the pole that are formed by bending a part of the current collector are soldered, and the adhesive filling pot is formed by heat welding, and then the terminal and the pole are bonded. We provide a sealed lead-acid battery with a highly reliable pole column that is liquid-tight and airtight as compared with the conventional method in which the pole column coated with an epoxy resin is heat-sealed and sealed by filling and sealing the agent. The effect that it becomes possible to obtain is obtained.
第１図は本発明の一実施例による密閉形鉛蓄電池の極柱
部を示す断面図、第２図は本発明の一実施例による密閉
形鉛蓄電池の構成を示す斜視図、第３図は従来の密閉形
鉛蓄電池の構造を示す斜視図である。 １……金属端子板、２……凸部、３……極柱、４……端
子、６……枠体、６′……接着剤充填ポット。FIG. 1 is a cross-sectional view showing a pole portion of a sealed lead acid battery according to an embodiment of the present invention, FIG. 2 is a perspective view showing a structure of a sealed lead acid battery according to an embodiment of the present invention, and FIG. It is a perspective view which shows the structure of the conventional sealed lead acid battery. DESCRIPTION OF SYMBOLS 1 ... Metal terminal plate, 2 ... convex part, 3 ... pole post, 4 ... terminal, 6 ... frame, 6 '... adhesive filling pot.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 強 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 小林 健二 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tsuyoshi Sato 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Kenji Kobayashi 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. Within
Claims (3)
極板群と、片面にポリオレフィン系合成樹脂フィルムあ
るいはシートをラミネートした金属集電板と、極板群の
周囲を囲むポリオレフィン系合成樹脂からなる枠体とを
有し、前記極板群をこれと接する面にはポリオレフィン
系合成樹脂体フィルム面を向けて前記金属集電板で挟み
込み、その周囲をポリオレフィン系合成樹脂からなる枠
体と熱溶着した構成において、折り曲げた金属集電板の
端子部を、正極板および負極板の極柱と電気的に接続
し、かつ枠体と集電板との間に極柱部を挟み込んで接着
剤充填用ポットを形成し極柱の半田付け部および集電板
の端子部の周囲に接着剤を充填して封口したことを特徴
とする密閉形鉛蓄電池。1. An electrode plate group consisting of a positive electrode plate, a negative electrode plate and a separator, a metal current collector plate on one side of which a polyolefin synthetic resin film or sheet is laminated, and a polyolefin synthetic resin surrounding the electrode plate group. A frame body, and the electrode plate group is sandwiched by the metal current collector plate with the polyolefin synthetic resin film surface facing the surface in contact with this, and the periphery thereof is heat-welded to the frame body made of the polyolefin synthetic resin. In this configuration, the bent metal current collector terminal is electrically connected to the poles of the positive and negative plates, and the pole is sandwiched between the frame and the current collector to fill the adhesive. A sealed lead acid battery, characterized in that a pot is formed, and an adhesive is filled around the soldering portion of the pole and the terminal portion of the current collector plate to seal the pot.
電板のラミネートフィルム表面との間の間隔を0.3mm以
上に設けて正極板および負極板の極柱と半田付けした特
許請求の範囲第１項記載の密閉形鉛蓄電池。2. A terminal of a bent metal current collector plate and a laminate film surface of the current collector plate are spaced by 0.3 mm or more and soldered to the poles of the positive electrode plate and the negative electrode plate. The sealed lead-acid battery according to claim 1.
面に凸部を設けた特許請求の範囲第１項記載の密閉形鉛
蓄電池。3. The sealed lead acid battery according to claim 1, wherein a convex portion is provided on a surface of the metal current collector plate in contact with the pole plate portion, the surface being in contact with the electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63130642A JP2537969B2 (en) | 1988-05-27 | 1988-05-27 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63130642A JP2537969B2 (en) | 1988-05-27 | 1988-05-27 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01298656A JPH01298656A (en) | 1989-12-01 |
| JP2537969B2 true JP2537969B2 (en) | 1996-09-25 |
Family
ID=15039133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63130642A Expired - Fee Related JP2537969B2 (en) | 1988-05-27 | 1988-05-27 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537969B2 (en) |
-
1988
- 1988-05-27 JP JP63130642A patent/JP2537969B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01298656A (en) | 1989-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |