JPH04206457A - Separator for lead-accumulator - Google Patents
Separator for lead-accumulatorInfo
- Publication number
- JPH04206457A JPH04206457A JP2338069A JP33806990A JPH04206457A JP H04206457 A JPH04206457 A JP H04206457A JP 2338069 A JP2338069 A JP 2338069A JP 33806990 A JP33806990 A JP 33806990A JP H04206457 A JPH04206457 A JP H04206457A
- Authority
- JP
- Japan
- Prior art keywords
- porous body
- body layer
- porous layer
- separator
- layer
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011149 active material Substances 0.000 abstract description 8
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009783 overcharge test Methods 0.000 description 1
Classifications
-
- 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
- Cell Separators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、鉛蓄電池用セパレータに関するものであり、
鉛蓄電池の特性面と生産工程での環境面とを同時に改善
するものである。[Detailed description of the invention] Industrial field of application The present invention relates to a separator for lead-acid batteries,
This simultaneously improves the characteristics of lead-acid batteries and the environmental aspects of the production process.
従来の技術
従来からのセパレータ、は１）平板状の隔離層にガラス
マットを貼り合わせたセパレータと、２）ポリエチレン
などのフィルムまたはンートを単独で用い、これを袋化
したセパレータの、２つのタイプに大別することができ
る。１）のタイプのセパレータは充放電による活物質の
軟化脱落を抑制する効果はあるが、極板群底部や側部で
の内部短絡は十分防止できないという課題を残している
。−方、２）のタイプのセパレータは、極板群底部や側
部での内部短絡は防止できるが、充放電による活物質の
軟化脱落を抑制する点で課題を残している。従ってこれ
ら２つの課題を同時に解決するためには、ガラスマント
とフィルムまたはンートを一体化した袋状セパレータか
必要になる。Conventional technology There are two types of conventional separators: 1) a separator in which a glass mat is bonded to a flat isolation layer, and 2) a separator in which a film or piece of polyethylene or the like is used alone and made into a bag. It can be broadly divided into Although the separator of type 1) has the effect of suppressing the softening and falling off of the active material due to charging and discharging, it still has the problem that it cannot sufficiently prevent internal short circuits at the bottom and sides of the electrode group. On the other hand, the separator of type 2) can prevent internal short circuits at the bottom and sides of the electrode plate group, but there remains a problem in suppressing the softening and falling off of the active material due to charging and discharging. Therefore, in order to solve these two problems at the same time, a bag-like separator that integrates a glass mantle and a film or net is required.
発明が解決しようとする課題
しかしながら、ガラスマットのような非接合性の多孔体
層（１）と接合性のある多孔体層（２）を一体化するこ
とは一般的に困難であった。これに対し、発明者等は非
接合性の多孔体層（１）の厚みなどの条件を規定するこ
とにより、非接合性の多孔体層（１）と接合性の多孔体
層（２）とを一体化することに成功した。Problems to be Solved by the Invention However, it has generally been difficult to integrate a non-bonding porous layer (1) such as a glass mat with a bonding porous layer (2). In contrast, the inventors have determined that the non-bonding porous layer (1) and the bonding porous layer (2) can be separated by specifying conditions such as the thickness of the non-bonding porous layer (1). succeeded in integrating the.
そして、さらに詳細な検討を重ねたところ、電池特性上
および電池生産上、多孔体層２がセパレータのどの位置
まで配置されているかが、極めて重要であることが明ら
かになった。Further detailed studies revealed that the position of the porous layer 2 on the separator is extremely important in terms of battery characteristics and battery production.
すなわち、第２図に示すように、多孔体層（１）か接合
部分の内側にしか存在しない場合、多孔体層（１）のす
れにより活物質の軟化を抑制する効果が低下してしまう
。さらに、充放電の繰り返しにより膨脹変形した極板か
直接多孔体層（２）と接触し、多孔体層（２）を劣化破
損させ内部短絡に至ることある。That is, as shown in FIG. 2, when the porous layer (1) exists only inside the joint portion, the effect of suppressing the softening of the active material is reduced due to the abrasion of the porous layer (1). Further, the expanded and deformed electrode plate due to repeated charging and discharging may come into direct contact with the porous layer (2), causing deterioration and damage to the porous layer (2), resulting in an internal short circuit.
一方、第３図に示すように、多孔体層（１）か接合部分
より外側に配置されていた場合、外側の多孔体層（１）
の役割は全くないばかりが、接合時のギアの圧力により
多孔体層（１）か接合箇所で破断し、多孔体層（２）の
切断屑か生産工程で多量に発生し、生産工程の環境を低
下せしめる原因の一つにもなる。On the other hand, as shown in FIG. 3, if the porous layer (1) is located outside the joint, the outer porous layer
Although it plays no role at all, the porous layer (1) breaks at the joint due to the pressure of the gear during bonding, and a large amount of cutting debris from the porous layer (2) is generated during the production process, which can damage the environment of the production process. It is also one of the causes of decline.
本発明は上記の２つの課題を同時に解決し、多孔一体層
（１）と多孔体層（２）とを重ね合わせて袋化するとい
う新しい技術を導入することにより、発生する新たな問
題点を解決するものである。The present invention solves the above two problems at the same time, and solves the new problems that arise by introducing a new technology of stacking the porous integral layer (1) and the porous material layer (2) to form a bag. It is something to be solved.
課題を解決するだめの手段
本発明は、前記した多孔体層（１）と多孔体層（２）と
を重ね合わせ、多孔体層（１）を内側にして２つ折りし
、左右の両端をギアの圧力で袋化する構成において、多
孔体層（１）か少なくとも片側のギアの範囲に存在して
おり、かつ多孔体層（１）がギアの範囲より外側に存在
していないことを特徴とする。Means for Solving the Problems The present invention involves stacking the above-mentioned porous layer (1) and porous layer (2), folding them in half with the porous layer (1) inside, and attaching the left and right ends to gears. The porous material layer (1) is present within the range of at least one gear, and the porous material layer (1) is not present outside the range of the gear. do.
すなわち、第１図において接合幅をＡＩ、Ａ２、接合部
の最外部から多孔体層２の端までの距離をＢ１．Ｂ２、
多孔体層１の端から多孔体層２の端までの距離をｃｌ、
ｃ２とすると、
Ｃ１＜Ａ１＋Ｂ１またはＣ２＜Ａ２＋Ｂ２の条件を満足
するものである。That is, in FIG. 1, the joint width is AI, A2, and the distance from the outermost part of the joint to the end of the porous layer 2 is B1. B2,
The distance from the end of porous layer 1 to the end of porous layer 2 is cl,
When c2, the following conditions are satisfied: C1<A1+B1 or C2<A2+B2.
作用
本発明の少なくとも片側のギア範囲に多孔体層が存在す
る場合、たとえ多孔体層１とおしが接合していなくても
多孔体層２は完全に一体化されるので、その内部に挟み
込まれた多孔体層２は電池使用時の振動などによりずれ
が生じることはなく、活物質の軟化脱落を抑制する効果
が低下することはない。さらに、両側の接合部で一体化
されている場合は、多孔体層２か袋状セパレータに内包
される極板と直接接触することはなくなるので、多孔体
層２の劣化による内部短絡を防止することができる。Effect: When a porous layer exists in at least one side of the gear range of the present invention, even if the porous layer 1 and the rear are not connected, the porous layer 2 is completely integrated. The porous layer 2 does not shift due to vibrations during use of the battery, and the effect of suppressing the softening and falling off of the active material does not decrease. Furthermore, when the porous layer 2 is integrated at the joints on both sides, there is no direct contact between the porous layer 2 and the electrode plate contained in the bag-like separator, thereby preventing internal short circuits due to deterioration of the porous layer 2. be able to.
さらに、多孔体層２が接合部より外側に配置されていた
としても何等役割を果たさないばかりが、接合時の圧力
により外側に存在する多孔体層２の切断屑が発生し、生
産工程でのライン停止の不具合や生産工程の環境を悪化
させてしまうこともある。これを防止するためには、例
えば多孔体層１と多孔体層２を同一幅にしし接合し、発
生した多孔体層１の切断屑を除去する工程を新たに設け
ても支障はないが、コストアップは免れないため、接合
する前に多孔体層１を配置することが最も効果的である
。Furthermore, even if the porous layer 2 is placed outside the joint, it does not play any role, but the pressure during bonding generates cutting debris from the porous layer 2 on the outside, causing problems in the production process. This can lead to line stoppage problems and worsen the production process environment. In order to prevent this, for example, the porous layer 1 and the porous layer 2 may be made to have the same width and then joined together, and a new step of removing generated cutting debris from the porous layer 1 may be provided. Since an increase in cost is inevitable, it is most effective to arrange the porous layer 1 before joining.
多孔体層１の材質は条件を満たせばいずれでも構わない
が、ガラスマットが最も一般的でよい。The porous layer 1 may be made of any material as long as it satisfies the conditions, but glass mat is the most common material.
また、多孔体層２については、ポリエチレンなどを主成
分とするフィルム状の層の場合、伸縮性を有しているた
めギア圧力により接合する時の圧力を他の材質の時より
も高くしなければならず、切断屑は多量に発生するので
これを抑制する上からも本発明は極めて効果的である。Regarding the porous layer 2, if it is a film-like layer whose main component is polyethylene, etc., it has elasticity, so the pressure when joining using gear pressure must be higher than when using other materials. Naturally, a large amount of cutting debris is generated, and the present invention is extremely effective in suppressing this.
実施例 以下、本発明の実施例について説明する。Example Examples of the present invention will be described below.
第１図に示す本発明の技術を用いた電池Ａと、第２図に
示す従来の技術を用いた電池Ｂを用意し、活物質の軟化
脱落を抑制する効果を明らかにするため、ＪＩＳによる
寿命試験を行った。なお、車両搭載時の振動をンミュレ
ートするため、１週間に３時間横方向に３Ｇの振動を加
えた。その結果を第４図に示すが、本発明の電池Ａの方
が長寿命であった。寿命となった電池を分解して極板か
ら脱落した活物質の重量を比較したところ、電池Ｂは６
１％の脱落であったのに対し、電池Ａは４５％の脱落と
本発明の効果が表れていた。We prepared battery A using the technology of the present invention shown in Fig. 1 and battery B using the conventional technology shown in Fig. 2, and in order to clarify the effect of suppressing the softening and falling off of the active material, A lifespan test was conducted. In order to simulate the vibrations experienced when installed in a vehicle, 3G vibration was applied in the lateral direction for 3 hours per week. The results are shown in FIG. 4, and the battery A of the present invention had a longer life. When we disassembled the batteries that had reached the end of their service life and compared the weight of the active material that fell off the electrode plates, we found that battery B had a weight of 6.
While the dropout was 1%, battery A had a dropout of 45%, demonstrating the effectiveness of the present invention.
また、電池Ａと電池ＢのＪＩＳによる過充電試験を行っ
た。第５図に示すように、電池Ａのほうが長寿命であり
、電池Ｂは寿命牛ばにして急激な性能の低下が見られた
。そこで電池内部の観察を行ったところ、電池Ｂはセパ
レータの接合部近傍でセパレータに破損があり、ここで
内部短絡に至っていた。しかし、電池Ａはセパレータの
破損は全く生しなく良好であった。In addition, an overcharge test was conducted on Battery A and Battery B according to JIS. As shown in FIG. 5, battery A had a longer lifespan, while battery B showed a rapid decline in performance as its lifespan increased. When the inside of the battery was observed, it was found that in battery B, the separator was damaged near the joint of the separator, leading to an internal short circuit. However, battery A was in good condition with no damage to the separator at all.
以上のように本発明の電池Ａは、活物質の軟化脱落の抑
制、極板変形による内部短絡防止の効果か高いことか明
らかになった。As described above, it has been revealed that the battery A of the present invention is highly effective in suppressing softening and falling off of the active material and preventing internal short circuits due to deformation of the electrode plates.
発明の効果
上記のように、本発明により非接合性多孔体と接合性多
孔体を併設して袋化することか可能で、コスト的にも環
境的にも改善され、長寿命な鉛蓄電池を供給する上で本
発明の効果は極めて大である。Effects of the Invention As described above, according to the present invention, it is possible to combine a non-bonded porous material and a bonded porous material and make it into a bag, which improves both cost and environmental aspects, and makes it possible to create a lead-acid battery with a long life. The effect of the present invention is extremely large in terms of supply.
第１図は本発明の実施例のセパレータを示す図である。
第２図、第３図は従来の例を示し、第２図は多孔体層１
か袋化された多孔体層２の内部でフリーな状態にある場
合のセパレータの図、第３図は多孔体層１が接合箇所よ
り外側に配置されている場合のセパレータの図、第４図
、第５図は本発明の実施例の効果を示した特性の図でる
。
１は多孔体層１．２は多孔体層２．
３は接合箇所（ギア範囲）、
Ａ１．Ａ２は多孔体層１の接合幅、
Ｂｌ、Ｂ２は接合部の最外部から多孔体層２の端までの
距離、
ｃｌ、ｃ２は多孔体層１の端から多孔体層２の端までの
距離。
代理人の氏名 弁理士 小蝦治 明 ほか２８弟
１ 図
・−
−一多）シ（λ・督@Ｉ
Ｆ−ｊ、侃’ｐ！ ２
３−一一えア耗尻
第 ２ 図
３ｉ
第 ３ 図FIG. 1 is a diagram showing a separator according to an embodiment of the present invention. 2 and 3 show conventional examples, and FIG. 2 shows the porous layer 1.
FIG. 3 is a diagram of the separator in a free state inside the bagged porous layer 2; FIG. 4 is a diagram of the separator when the porous layer 1 is placed outside the joint area , FIG. 5 is a characteristic diagram showing the effects of the embodiment of the present invention. 1 is a porous layer 1.2 is a porous layer 2. 3 is the joint location (gear range), A1. A2 is the joint width of porous layer 1, Bl, B2 is the distance from the outermost part of the joint to the end of porous layer 2, cl, c2 is the distance from the end of porous layer 1 to the end of porous layer 2 . Name of agent: Patent attorney Akira Koeji and 28 younger brothers
1 figure
・−
-一多) し(λ・证@IF-j、侃'p! 2 3-１一えあさしり 2nd Fig. 3i Fig. 3
Claims (5)
孔体層（多孔体層２）とを重ね合わせ、非接合性の多孔
体層を内側にして２つに折り曲げ、その左右の両端部を
回転する１対のギアの間を通過させてギア先端の圧力に
よりギアに対応した間隔で接合した袋状セパレータであ
って、前記非接合性の多孔体層は少なくとも片側のギア
の範囲に存在していることを特徴とする鉛蓄電池用セパ
レータ。(1) Layer a non-bonding porous material layer (porous material layer 1) and a bonding porous material layer (porous material layer 2) and fold them in two with the non-bonding porous material layer inside, A bag-shaped separator whose left and right ends are passed between a pair of rotating gears and joined at intervals corresponding to the gears by pressure at the tips of the gears, the non-joint porous layer being at least on one side. A separator for lead-acid batteries characterized by being present in the gear range.
していることを特徴とする特許請求の範囲（１）項に記
載の鉛蓄電池用セパレータ。(2) The separator for a lead-acid battery according to claim (1), wherein the non-bonding porous layer is present in the range of the gears on both sides.
存在しないことを特徴とする特許請求の範囲（１）項ま
たは（２）項に記載の鉛蓄電池用セパレータ。(3) The separator for a lead-acid battery according to claim (1) or (2), wherein the non-bonding porous layer does not exist outside the range of the gear.
る特許請求の範囲（１）項、（２）項および（３）項の
いずれかに記載の鉛蓄電池用セパレータ。(4) The separator for a lead-acid battery according to any one of claims (1), (2), and (3), wherein the non-bonding porous layer contains glass fiber as a main component.
フィルム状であることを特徴とする特許請求の範囲（１
）項に記載の鉛蓄電池用セパレータ。(5) Claims (1) characterized in that the bondable porous layer is in the form of a film containing polyethylene as a main component.
Separator for lead-acid batteries as described in ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02338069A JP3143923B2 (en) | 1990-11-30 | 1990-11-30 | Lead-acid battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02338069A JP3143923B2 (en) | 1990-11-30 | 1990-11-30 | Lead-acid battery separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04206457A true JPH04206457A (en) | 1992-07-28 |
| JP3143923B2 JP3143923B2 (en) | 2001-03-07 |
Family
ID=18314619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02338069A Expired - Lifetime JP3143923B2 (en) | 1990-11-30 | 1990-11-30 | Lead-acid battery separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3143923B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753895A1 (en) * | 1995-07-14 | 1997-01-15 | Exide Corporation | Battery plate separator envelope and method of forming battery plate assemblies including the same |
| WO2017033497A1 (en) * | 2015-08-24 | 2017-03-02 | 日立化成株式会社 | Lead storage-battery separator, lead storage-battery, and method for producing same |
| JP2019106314A (en) * | 2017-12-13 | 2019-06-27 | ハイメカ株式会社 | Separator bonding device for secondary battery, secondary battery, separator bonding method for secondary battery |
-
1990
- 1990-11-30 JP JP02338069A patent/JP3143923B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753895A1 (en) * | 1995-07-14 | 1997-01-15 | Exide Corporation | Battery plate separator envelope and method of forming battery plate assemblies including the same |
| WO2017033497A1 (en) * | 2015-08-24 | 2017-03-02 | 日立化成株式会社 | Lead storage-battery separator, lead storage-battery, and method for producing same |
| JPWO2017033497A1 (en) * | 2015-08-24 | 2017-10-12 | 日立化成株式会社 | Lead-acid battery separator, lead-acid battery, and methods for producing them |
| JP2019106314A (en) * | 2017-12-13 | 2019-06-27 | ハイメカ株式会社 | Separator bonding device for secondary battery, secondary battery, separator bonding method for secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3143923B2 (en) | 2001-03-07 |
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