JP2682235B2 - Sealed storage battery - Google Patents
Sealed storage batteryInfo
- Publication number
- JP2682235B2 JP2682235B2 JP2406581A JP40658190A JP2682235B2 JP 2682235 B2 JP2682235 B2 JP 2682235B2 JP 2406581 A JP2406581 A JP 2406581A JP 40658190 A JP40658190 A JP 40658190A JP 2682235 B2 JP2682235 B2 JP 2682235B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- small hole
- battery
- electrode plate
- synthetic
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 77
- 239000000057 synthetic resin Substances 0.000 claims description 77
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
- H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は密閉形蓄電池に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed storage battery.
【０００２】[0002]
【従来の技術】従来は、特開昭６３−１７４２６５号公
報に示されるように、極板群を２枚の合成樹脂シートの
間に配置して、周辺部を接合し、一方の合成樹脂に小孔
３を設け、この小孔３の周辺を他方の合成樹脂シートと
不連続的に溶接接合して、安全弁部を形成していた。８
は不連続的溶接部である。2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Laid-Open No. 174265/1988, an electrode plate group is arranged between two synthetic resin sheets and the peripheral portions are joined to each other so that one of the synthetic resin sheets is joined. The small hole 3 was provided, and the periphery of the small hole 3 was discontinuously welded to the other synthetic resin sheet to form the safety valve portion. 8
Is a discontinuous weld.
【０００３】[0003]
【発明が解決しようとする課題】従来の安全弁部では、
安全弁の排気部となる小孔と極板群とが、同一のフィル
ム上に存在しているために、電解液が直接小孔部に達し
て、小孔より外へ排出される危険性があった。又、密閉
性を良くするために小孔の周辺にシリコーンオイルを配
した場合には、このシリコーンオイルが極板群部へ流れ
込んでしまうという問題点があった。In the conventional safety valve portion,
Since the small hole that serves as the exhaust part of the safety valve and the electrode plate group are on the same film, there is a risk that the electrolytic solution will reach the small hole directly and be discharged from the small hole. It was Further, when silicone oil is provided around the small holes to improve the hermeticity, there is a problem that the silicone oil flows into the electrode plate assembly.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明は、極板群をシート状又はフィルム状の合成
樹脂で被覆し、周囲をすべて接合してなる密閉形蓄電池
であって、前記合成樹脂は、第１の合成樹脂と第２の合
成樹脂と第３の合成樹脂とを含み、前記第２の合成樹脂
は、凸状あるいは凹状の切欠き形状で、該凸状あるいは
凹状の突出部分に少なくとも１個以上の小孔を有するも
のであり、該第２の合成樹脂と前記第１の合成樹脂との
間に前記極板群が封入されており、第２の合成樹脂側に
前記第３の合成樹脂が重ね合わされて周囲が接合され、
前記切欠き部分に対応する位置で前記第１の合成樹脂と
第３の合成樹脂とが直接接する部分の一方あるいは両方
の合成樹脂に小孔が設けられ、該小孔の周囲の第１の合
成樹脂と第３の合成樹脂との間にシリコーンオイルが配
されていることにより、電池内部から電池外部への排気
経路は、前記第１の合成樹脂と第２の合成樹脂との間か
ら第２の合成樹脂の小孔を経由し、第２の合成樹脂と第
３の合成樹脂との間を経由して、第１の合成樹脂と第３
の合成樹脂とが直接接する部分に設けた小孔へ達するよ
うに形成されていることを特徴とするものである。In order to solve the above-mentioned problems, the present invention relates to a sealed type storage battery in which an electrode plate group is covered with a sheet-shaped or film-shaped synthetic resin and the entire periphery is joined. The synthetic resin includes a first synthetic resin, a second synthetic resin, and a third synthetic resin, and the second synthetic resin has a convex or concave notch shape, and the convex or concave shape. Has at least one small hole in the protruding portion thereof, the electrode plate group is enclosed between the second synthetic resin and the first synthetic resin, and the second synthetic resin side The third synthetic resin is overlapped with and the periphery is joined,
A small hole is provided in one or both of the synthetic resins where the first synthetic resin and the third synthetic resin are in direct contact with each other at a position corresponding to the cutout, and the first synthetic material around the small hole is provided. By disposing the silicone oil between the resin and the third synthetic resin, the exhaust path from the inside of the battery to the outside of the battery is provided between the first synthetic resin and the second synthetic resin. Through the small holes of the synthetic resin, and between the second synthetic resin and the third synthetic resin, and the first synthetic resin and the third synthetic resin.
It is characterized in that it is formed so as to reach a small hole provided in a portion in direct contact with the synthetic resin.
【０００５】[0005]
【作用】本発明は、安全弁の排気孔となる小孔が、第２
の合成樹脂により極板群と一旦さえぎられるために、電
解液が直接排気孔となる小孔へ達し難く、電解液が小孔
より排出されなくなる。又、同様に、安全弁の小孔付近
にあるシリコーンオイルも、極板群部へ流れ込まなくな
る。According to the present invention, the small hole serving as the exhaust hole of the safety valve has the second feature.
Since it is once blocked from the electrode plate group by the synthetic resin, it is difficult for the electrolytic solution to directly reach the small holes serving as exhaust holes, and the electrolytic solution is not discharged from the small holes. Similarly, the silicone oil near the small holes of the safety valve will not flow into the electrode plate assembly.
【０００６】[0006]
【実施例】本発明の一実施例を説明する。極板群１をシ
ート状又はフィルム状の合成樹脂で被覆し、周囲をすべ
て接合してなる密閉形蓄電池であって、前記合成樹脂
は、電池内側からポリプロピレン、ポリ塩化ビニリデ
ン、ポリエチレンテレフタレートの順にラミネートした
フィルムからなる第１の合成樹脂２と、ポリプロピレン
フィルムからなる第２の合成樹脂４と、第１の合成樹脂
２と同構成のフィルムからなる第３の合成樹脂５とを含
み、第２の合成樹脂４は、凸状の切欠き形状で、該凸状
の突出部分に小孔３’を有する安全弁７が形成されたも
のであり、第２の合成樹脂４と第１の合成樹脂２との間
に極板群１が封入されており、第２の合成樹脂４側に第
３の合成樹脂５が重ね合わされて周囲が熱溶着され、前
記切欠き部分に対応する位置で第１の合成樹脂２と第３
の合成樹脂５とが直接接する部分の両方の合成樹脂を貫
通する小孔３が設けられ、該小孔３の周囲の第１の合成
樹脂２と第３の合成樹脂５との間にシリコーンオイルが
配されていることにより、電池内部から電池外部への排
気経路は、第１の合成樹脂２と第２の合成樹脂４との間
から小孔３’を経由し、第２の合成樹脂４と第３の合成
樹脂５との間を経由して、第１の合成樹脂２と第３の合
成樹脂５とが直接接する部分に設けた小孔３へ達するよ
うに形成されている(本発明品１)。次に、本発明品１の
第２の合成樹脂４として凹状の切欠き形状の突出部分に
小孔３’を有する安全弁７が形成されたものを用いて本
発明品２とした。An embodiment of the present invention will be described. A sealed storage battery in which the electrode plate group 1 is covered with a sheet-shaped or film-shaped synthetic resin and the entire periphery is joined, and the synthetic resin is laminated in the order of polypropylene, polyvinylidene chloride, polyethylene terephthalate from the inside of the battery. A second synthetic resin 4 made of a polypropylene film, a second synthetic resin 4 made of a polypropylene film, and a third synthetic resin 5 made of a film having the same structure as the first synthetic resin 2, The synthetic resin 4 has a convex notch shape, and a safety valve 7 having a small hole 3 ′ is formed in the convex protruding portion, and the synthetic resin 4 has a second synthetic resin 4 and a first synthetic resin 2. The electrode plate group 1 is enclosed between the two, the third synthetic resin 5 is superposed on the second synthetic resin 4 side and the periphery is heat-welded, and the first synthetic resin is formed at a position corresponding to the cutout portion. Resin 2 and 3
Of the synthetic resin 5 is provided with a small hole 3 penetrating both synthetic resins, and silicone oil is provided between the first synthetic resin 2 and the third synthetic resin 5 around the small hole 3. Since the exhaust passage from the inside of the battery to the outside of the battery is disposed between the first synthetic resin 2 and the second synthetic resin 4 via the small holes 3 ′, the second synthetic resin 4 is provided. It is formed so as to reach a small hole 3 provided in a portion where the first synthetic resin 2 and the third synthetic resin 5 are in direct contact with each other through the space between the first synthetic resin 2 and the third synthetic resin 5 (the present invention Item 1). Next, as the second synthetic resin 4 of the product 1 of the present invention, a product in which the safety valve 7 having the small hole 3 ′ is formed in the protruding portion of the concave notch shape was used as the product 2 of the present invention.
【０００７】本発明品１、本発明品２、従来品を各１０
０個ずつ作成し、それぞれの開弁圧、電解液が安全弁７
より排出された電池個数、シリコーンオイル６が極板群
１の部分へ流入した個数を測定した。The present invention product 1, the present invention product 2, and the conventional product are 10 each
Make 0 valves each, and open each valve, electrolyte is safety valve 7
The number of discharged batteries and the number of silicone oil 6 flowing into the electrode plate group 1 were measured.
【０００８】その結果を表１に示す。The results are shown in Table 1.
【０００９】[0009]
【表１】 [Table 1]
【００１０】表１に示すように、本発明品１，２は、従
来品と比べ、開弁圧がほぼ同等であり且つ、従来品で
は、開弁時に電解液が１００個中２１個流出し、シリコ
ーンオイル６の流入が１００個中１３個であったのに対
して、本発明品ではいずれも０個であり、安全で信頼性
が高いものである。As shown in Table 1, the products 1 and 2 of the present invention have almost the same valve opening pressure as the conventional product, and in the conventional product, 21 out of 100 electrolytes flow out when the valve is opened. While the silicone oil 6 flowed in 13 out of 100, the product of the present invention had 0 in all, which is safe and highly reliable.
【００１１】[0011]
【発明の効果】上述のように、本発明は、密閉形蓄電池
の安全弁として、安全性、信頼性が高い等、工業的価値
大なるものである。INDUSTRIAL APPLICABILITY As described above, the present invention has great industrial value as a safety valve for a sealed type storage battery, such as high safety and reliability.
【図１】本発明密閉形蓄電池の一実施例を示す要部断面
図である。FIG. 1 is a sectional view of an essential part showing an embodiment of a sealed storage battery of the present invention.
【図２】図１のＡ−Ａ′線に沿う断面図である。FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG.
【図３】図１のＢ−Ｂ′線に沿う断面図である。3 is a cross-sectional view taken along the line BB ′ of FIG.
【図４】本発明密閉形蓄電池の他の一実施例を示す要部
断面図である。FIG. 4 is a sectional view of an essential part showing another embodiment of the sealed storage battery of the present invention.
【図５】図４のＣ−Ｃ′線に沿う断面図である。5 is a cross-sectional view taken along the line CC 'of FIG.
【図６】図４のＤ−Ｄ′線に沿う断面図である。6 is a cross-sectional view taken along the line DD ′ of FIG.
【図７】従来の密閉形蓄電池の要部断面図である。FIG. 7 is a sectional view of a main part of a conventional sealed storage battery.
【図８】図７のＤ−Ｄ′線に沿う断面図である。8 is a cross-sectional view taken along the line DD ′ of FIG.
１ 極板群 ２ 第１の合成樹脂 ３ 小孔 ４ 第２の合成樹脂 ５ 第３の合成樹脂 ６ シリコーンオイル ７ 安全弁 1 Electrode plate group 2 1st synthetic resin 3 Small hole 4 2nd synthetic resin 5 3rd synthetic resin 6 Silicone oil 7 Safety valve
Claims (1)
脂で被覆し、周囲をすべて接合してなる密閉形蓄電池で
あって、前記合成樹脂は、第１の合成樹脂と第２の合成
樹脂と第３の合成樹脂とを含み、前記第２の合成樹脂
は、凸状あるいは凹状の切欠き形状で、該凸状あるいは
凹状の突出部分に少なくとも１個以上の小孔を有するも
のであり、該第２の合成樹脂と前記第１の合成樹脂との
間に前記極板群が封入されており、第２の合成樹脂側に
前記第３の合成樹脂が重ね合わされて周囲が接合され、
前記切欠き部分に対応する位置で前記第１の合成樹脂と
第３の合成樹脂とが直接接する部分の一方あるいは両方
の合成樹脂に小孔が設けられ、該小孔の周囲の第１の合
成樹脂と第３の合成樹脂との間にシリコーンオイルが配
されていることにより、電池内部から電池外部への排気
経路は、前記第１の合成樹脂と第２の合成樹脂との間か
ら第２の合成樹脂の小孔を経由し、第２の合成樹脂と第
３の合成樹脂との間を経由して、第１の合成樹脂と第３
の合成樹脂とが直接接する部分に設けた小孔へ達するよ
うに形成されていることを特徴とする密閉形蓄電池。1. A The electrode plate group was covered with a sheet-shaped or film-shaped synthetic resins, in hermetically sealed battery formed by joining all around
The synthetic resin is the first synthetic resin and the second synthetic resin.
A second synthetic resin including a resin and a third synthetic resin
Is a convex or concave notch shape, convex or
Also having at least one small hole in the projecting portion of the concave
Of the second synthetic resin and the first synthetic resin
The electrode plate group is enclosed in between, and on the second synthetic resin side
The third synthetic resin is surrounding is joined superimposed,
A small hole is provided in one or both of the portions of the portion where the first synthetic resin and the third synthetic resin are in direct contact with each other at a position corresponding to the cutout portion, and a first joint around the small hole is provided.
Silicone oil is placed between the synthetic resin and the third synthetic resin.
Is exhausted from the inside of the battery to the outside of the battery.
Is the route between the first synthetic resin and the second synthetic resin?
From the second synthetic resin to the second synthetic resin through the small holes of the second synthetic resin.
The first synthetic resin and the third synthetic resin via the third synthetic resin.
Will reach a small hole in the part where it directly contacts the synthetic resin
A sealed type storage battery, which is characterized by being formed as described above .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406581A JP2682235B2 (en) | 1990-12-26 | 1990-12-26 | Sealed storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406581A JP2682235B2 (en) | 1990-12-26 | 1990-12-26 | Sealed storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04223042A JPH04223042A (en) | 1992-08-12 |
| JP2682235B2 true JP2682235B2 (en) | 1997-11-26 |
Family
ID=18516207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2406581A Expired - Lifetime JP2682235B2 (en) | 1990-12-26 | 1990-12-26 | Sealed storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2682235B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62163257A (en) * | 1986-01-14 | 1987-07-20 | Matsushita Electric Ind Co Ltd | Sealed storage battery |
| JPS63174265A (en) * | 1987-01-09 | 1988-07-18 | Japan Storage Battery Co Ltd | Manufacture of thin type enclosed lead storage battery |
-
1990
- 1990-12-26 JP JP2406581A patent/JP2682235B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04223042A (en) | 1992-08-12 |
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