JPH04171656A - Separator for lead-acid battery and manufacture thereof - Google Patents
Separator for lead-acid battery and manufacture thereofInfo
- Publication number
- JPH04171656A JPH04171656A JP2300759A JP30075990A JPH04171656A JP H04171656 A JPH04171656 A JP H04171656A JP 2300759 A JP2300759 A JP 2300759A JP 30075990 A JP30075990 A JP 30075990A JP H04171656 A JPH04171656 A JP H04171656A
- Authority
- JP
- Japan
- Prior art keywords
- separator
- porous
- thermoplastic resin
- weldable
- lead
- 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.)
- Pending
Links
- 239000002253 acid Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- -1 polyethylene Polymers 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 description 9
- 239000011149 active material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 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とその製造法に関し、特
にガラスファイバーを主成分とするマット状のセパレー
タと、ポリエチレンを主成分とするシート状のセパレー
タを組み合せだ袋状のセパレータとその製造法に関する
０ ゛従来の技術
従来、活物質の保持を目的としたガラスファイバーを主
成分とするセパレータとパルプ等を主成分としたセパレ
ータを接合した平板状のものが用いら、１土てきたが、
極板とセパ１／−夕のずれ乙、どによる生産性の問題点
及び活物質の軟化脱落による極板底部でのンヨートが発
生し寿命を迎えることがあった。その改良として熱可塑
性情１脂多孔体であるポリエチレンを主成分としたシー
ト状セパレ・−夕を熱溶着、超音波溶着、接着等で袋状
セパレータにすることにより活物質の脱落による底部で
のショート、及び生産上の問題点が改善された。 。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a separator for lead-acid batteries and a method for manufacturing the same, and particularly relates to a mat-like separator mainly composed of glass fiber and a sheet-like separator mainly composed of polyethylene. 0 ゛Concerning a combination bag-shaped separator and its manufacturing method Conventional technology A flat plate-shaped separator made by joining a separator mainly composed of glass fiber and a separator mainly composed of pulp, etc. for the purpose of retaining active materials. It took me a while to use it, but
There have been problems with productivity due to misalignment between the electrode plate and the separator, and cracks have occurred at the bottom of the electrode plate due to softening and falling off of the active material, which has led to the end of its life. As an improvement, a sheet-like separator mainly composed of polyethylene, which is a porous thermoplastic material, is made into a bag-like separator by thermal welding, ultrasonic welding, adhesion, etc., so that the active material does not fall off at the bottom. Short-circuits and production problems have been improved. .
しかしながらそれでも比較的深い充放電を伴う場合にお
いては活物質を充分押えつけられず活物質が脱落し寿命
を迎えるものが発生している。まだ、ＩＥ極板の湾曲、
変形によりセパレータをつき破りショートすることがあ
った。こうしたことから極板側に活物質を押さえるガラ
スファイバーを主成分としたセパレータなどを袋状ンー
トセパレータと併用する必要性に迫られた１つそれには
非浴接性材料であるこれらのガラスファイバーを主成分
とするマント状多孔体層同志を対峙して溶接する必要性
に迫られたが、生産性、コスト面で問題があったＯ
発明が解決しようとする課題
すなわち、非溶接性多孔体を極板側に配置してもなお袋
化の溶接や形状保持の部分溶接を工業的に可能にし、そ
の結果として寿命にすぐれた構成を実現することが課題
であった。従来非溶接性多孔体としてガラスファイバー
を主成分としたセパレータと、熱可塑性樹脂多孔体とし
てポリエチレンを主成分とするセパレータを接合するに
は、接着剤で接合する以外前えられなかった。その理由
は、これらマント体に適した素材は一般的に多くの場合
非溶接性多孔体であり熱可塑性樹脂セパレータを溶着す
る一般的方法である熱溶着、単純加圧、超音波溶着、高
周波溶着などの熱可塑性樹脂セパレータを溶着する方法
では、不可能だと考えられてきた。本発明はこのような
課題を解決するもので、鉛蓄電池の寿命を向−トする鉛
唇電池用セパレータとその製造法を提供することを目的
とする。）
課題を解決するだめの手段
この課題を解決するため本発明の鉛蓄電池用セパ１ノー
タおよびその製造法は一対の非溶接性多孔体層を内側に
挟むように、一対の熱可塑性樹脂多孔体層を配して重ね
、その両側部に波状の連続加圧部分を形成することによ
り、少なくとも非溶接性多孔体層の一部を挟み込み、熱
可塑性樹脂多孔体層同志を接合しだ鉛４〆覗池用セパレ
ータとするものである。捷だ一対の非溶接性多孔体層を
内側に挟むように、一対の熱可塑性位・１脂多孔体層を
配して市ね、これを一対の互いにかみ合って回転する歯
車の間に挿入し、前記歯車のピッチに対応した１）ＩＩ
記両歯車歯の先端圧力により、加圧部分が連続した波状
の軌跡を描くように加圧し、ｎｉＩ記熱可熱可塑性樹脂
多孔体同志合とともに前記非溶接多孔体層中に前記熱可
塑性樹脂多孔体層より熱１社塑性炭脂を透過させて、前
記非溶接性多孔層と前記熱可塑性樹脂多孔体層を接合す
る鉛堺電ｉ（１；、用セパレータの製造法とするもので
ある、
作用
この構成により本発明の鉛蓄電池用セパレータとその製
造法は、非溶接性多孔体層の少なくとも一部を波状の連
続加圧部分ではさみ込みつつ、熱可塑性樹脂多孔体層同
志を結合することとなる。However, in cases involving relatively deep charging and discharging, the active material cannot be sufficiently pressed down, causing the active material to fall off and end its life. Still, the curvature of the IE electrode plate,
Due to deformation, the separator could be punctured and short-circuited. For this reason, it became necessary to use a separator mainly made of glass fiber to hold down the active material on the electrode plate side in combination with a bag-like net separator. It was necessary to weld the cloak-like porous layers, which are the main components, facing each other, but there were problems in terms of productivity and cost. The challenge was to make it possible to industrially perform bag-forming welding and partial welding that maintains shape even when placed on the electrode plate side, and as a result, to realize a configuration with excellent longevity. Conventionally, the only way to join a separator mainly composed of glass fiber as a non-weldable porous body and a separator mainly composed of polyethylene as a thermoplastic resin porous body was to use an adhesive. The reason is that the materials suitable for these cloak bodies are generally non-weldable porous materials, and the common methods for welding thermoplastic resin separators are thermal welding, simple pressure, ultrasonic welding, and high frequency welding. It has been thought that methods such as welding thermoplastic resin separators would be impossible. The present invention solves these problems, and aims to provide a separator for lead-acid batteries that extends the life of lead-acid batteries, and a method for manufacturing the separator. ) Means for Solving the Problem In order to solve this problem, the separator for lead-acid batteries and the manufacturing method thereof of the present invention provide a pair of thermoplastic resin porous materials with a pair of non-weldable porous material layers sandwiched therebetween. By arranging and overlapping the layers and forming wavy continuous pressure parts on both sides, at least a part of the non-weldable porous material layer is sandwiched and the thermoplastic resin porous material layers are bonded together. This is a separator for a pond. A pair of thermoplastic and one resin porous material layers are arranged so as to sandwich a pair of non-weldable porous material layers inside, and this is inserted between a pair of gears that mesh with each other and rotate. , 1) II corresponding to the pitch of the gear
The tip pressure of both gear teeth applies pressure so that the pressurized portion draws a continuous wavy locus, and the thermoplastic resin porous material is formed in the non-welded porous material layer together with the NiI thermoplastic resin porous material. A method for producing a separator for lead Sakaideni (1), in which the non-weldable porous layer and the thermoplastic resin porous layer are joined by passing heat through the body layer through plastic carbonaceous resin, Effect With this configuration, the lead-acid battery separator of the present invention and its manufacturing method can bond the thermoplastic resin porous layers to each other while sandwiching at least a portion of the non-weldable porous layer between the wavy continuous pressure parts. becomes.
実施例
以下本発明の一実施例の鉛蓄電池用セパレータとその製
造法について図面を基にして説明する。EXAMPLE Hereinafter, a separator for a lead-acid battery according to an example of the present invention and a method for manufacturing the same will be described with reference to the drawings.
第１図は本実施例のセパレータ構成を示し、−対のガラ
スファイバーを主成分とするマント状のセパレータから
なる非溶接性多孔体層１を内側に挟むように、一対のポ
リエチレンを主成分とするシート状のセパレータからな
る熱可塑性樹脂多孔体層２を配して重ね、これを一対の
互いにかみ合って回転する歯車の間に挿入し、前記歯車
のピッチに対応した前記歯車の歯の先端圧力により、加
圧部分３が連続した波状の軌跡を描くように加圧するこ
とにより、熱可塑性樹脂多孔体層２同志を接合するとと
もに、非溶接性多孔体Ｆ１＋１中に熱可塑性樹脂多孔体
層２より熱可塑性樹脂を透過させて、非溶接性多孔体層
１と熱可塑性樹脂多孔体層２を接合する。このセパレー
タを人とする３、このセパレータ人に正極を配置し、負
極と組み合わせて４８Ａｈ相当の電池を作成した。この
電池をＡ′とする。−７比較としてガラスファイバーを
主成分としたセパレータと、パルプを主成分としたセパ
レータを接着剤で接合した板状のセパレータを用い、Ｉ
Ｆ極と負極を組み合わせて４８Ａｈ相当の電池を作成し
た１、この電池をＢ′とする。第２図は深い充放電パタ
ーンであるＪＩＳ寿命試験といわれる試験方法をベース
に６０℃で、６人で５時間充電し、２ＯＡで１時間放電
を２５サイクル繰シ返し、２５サイクル毎に２０人で端
子電圧１０．２ｙ１で連続放電を行ない放電容量が２４
１ｈ以下となったところを寿命とする試験方法で、それ
ぞれＡ／ 、 Ｂ／の電池を評価した結果である。横軸
に電池Ｂ′の寿命数を１００としたときの寿命指数をと
り、縦軸に２０Ａ放電時の容量を取った。Ａ′はＢ′よ
りも約５０％長寿命であった。寸だＡ′の１１１；池で
は、寿命までセパレータ溶接部の（はがＩｚ（ｒｉ見ら
れなかったっなお、波状の連続加圧部分の軌跡が不規則
な形状であっても同様の効果が得られる。本実施例の構
成では、非溶接性多孔体同志が対面する部分では特殊な
加圧条件で、熱可塑性樹脂が非溶接性多孔体層を透過し
て互いに溶着して結合力を助ける。。FIG. 1 shows the separator structure of this embodiment, in which a pair of polyethylene as the main component is sandwiched between a non-weldable porous layer 1 consisting of a mantle-like separator with a pair of glass fibers as the main component. A porous thermoplastic resin layer 2 consisting of a sheet-like separator is arranged and stacked, and this is inserted between a pair of gears that rotate while meshing with each other, and the tip pressure of the teeth of the gear corresponding to the pitch of the gear is applied. By applying pressure so that the pressurizing portion 3 draws a continuous wavy locus, the thermoplastic resin porous layers 2 are joined together, and the thermoplastic resin porous layer 2 is bonded to the non-weldable porous body F1+1. The non-weldable porous layer 1 and the thermoplastic resin porous layer 2 are bonded by allowing the thermoplastic resin to pass through. Using this separator as a person, a positive electrode was placed on the separator and combined with a negative electrode to create a battery equivalent to 48Ah. This battery is designated as A'. -7 For comparison, a plate-shaped separator made by bonding a separator mainly composed of glass fiber and a separator mainly composed of pulp with an adhesive was used.
A battery equivalent to 48 Ah was prepared by combining the F electrode and the negative electrode. This battery is designated as B'. Figure 2 is based on a test method called the JIS life test, which is a deep charge/discharge pattern.Charging at 60℃ for 5 hours with 6 people, discharging for 1 hour at 2OA, repeated 25 cycles, and 20 people every 25 cycles. Continuous discharge is performed with a terminal voltage of 10.2y1, and the discharge capacity is 24
These are the results of evaluating batteries A/ and B/, respectively, using a test method that determines the lifespan when the battery life is 1 hour or less. The horizontal axis shows the life index when the number of lifetimes of battery B' is set to 100, and the vertical axis shows the capacity at 20 A discharge. A' had a lifespan approximately 50% longer than B'. Dimension A'111: In the test, the separator welded part (Iz(ri) was not observed until the life of the separator. However, even if the locus of the wavy continuous pressurized part is irregular, the same effect can be obtained. In the configuration of this embodiment, under special pressure conditions, the thermoplastic resin permeates through the non-weldable porous layer and welds to each other at the portions where the non-weldable porous bodies face each other, thereby helping to strengthen the bonding force. .
しかも、何ら接着剤無しに容易にこの構成を可能にする
ものであって寿命に必要な１００係ガラスフアイバー系
材のマットなどの非溶接性多孔体層の溶着やポリエチレ
ンとガラスファイバーの混抄したマットの併設などに適
しており寿命の改善に大いに効果がある。In addition, this structure can be easily achieved without any adhesive, and it is possible to weld a non-weldable porous layer such as a mat made of 100-coated glass fiber material, which is necessary for longevity, or a mat made of a mixture of polyethylene and glass fiber. It is suitable for installation in conjunction with other facilities, and is highly effective in improving lifespan.
発明の効果
以−トの実施例の説明で明らかなように本発明の鉛蓄電
池用セパレータとその製造法によれば、従来不可能と考
えられてきた非溶接性多孔体層と熱可塑性樹脂多孔体層
が容易に溶着できるようになりシート状のセパレータと
の併設が容易になり鉛蓄電池の寿命改善にはだす効果は
極めて大である。Effects of the Invention As is clear from the description of the embodiments below, the separator for lead-acid batteries and the manufacturing method thereof of the present invention have a non-weldable porous layer and a thermoplastic resin porous layer, which has been thought to be impossible in the past. The body layer can be easily welded and can be easily installed together with a sheet-like separator, which has an extremely large effect on improving the life of lead-acid batteries.
第１図＆−１本発Ｒ７ｉの一実施例の鉛蓄電池用セパ２
／−タとその製造法におけるセパレータ構成の正面図、
・第２図は本発明の一実施例および従来の鉛蓄電池用セ
パ２−タを用いて作製しだ電池のＪＩＳ寿命試験をベー
スにした６０℃の寿命試験結果を示すグラフである。
１・・・・・・非溶接性多孔体層、２・・・・熱可１１
ｉＪｊ性崩脂多孔体層、３・・・・・加圧部分。Figure 1 &-1 Separator 2 for lead-acid battery of an embodiment of R7i
A front view of the separator configuration in /-ta and its manufacturing method,
- Fig. 2 is a graph showing the results of a 60°C life test based on the JIS life test of batteries manufactured using an embodiment of the present invention and a conventional lead-acid battery separator. 1...Non-weldable porous layer, 2...Thermoplastic 11
iJj fat-disintegrating porous material layer, 3...pressure part.
Claims (6)
対の熱可塑性樹脂多孔体層を配して重ね、その両側部に
波状の連続加圧部分を形成することにより、加圧により
少なくとも非溶接性多孔体層の一部を挾み込み、かつ熱
可塑性樹脂多孔体層同志を接合した鉛蓄電池用セパレー
タ。(1) A pair of thermoplastic resin porous layers are arranged and stacked so as to sandwich a pair of non-weldable porous layers inside, and a wavy continuous pressurized portion is formed on both sides of the layers. A separator for a lead-acid battery, in which at least a part of a non-weldable porous material layer is sandwiched, and thermoplastic resin porous material layers are bonded to each other.
体層より非溶接性多孔体層を透過させた熱可塑性樹脂に
よって接合した請求項１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 pressurized portion of the non-weldable porous layer is joined by a thermoplastic resin that has passed through the non-weldable porous layer through the thermoplastic resin porous layer.
ータである請求項１または３記載の鉛蓄電池用セパレー
タ。(3) The lead-acid battery separator according to claim 1 or 3, which is a bag-shaped separator that covers either a positive electrode or a negative electrode.
したマット状セパレータである請求項１、２または３記
載の鉛蓄電池用セパレータ。(4) The separator for a lead-acid battery according to claim 1, 2 or 3, wherein the non-weldable porous layer is a mat-like separator containing glass fiber as a main component.
するシート状セパレータである請求項１、２、３または
４記載の鉛蓄電池用セパレータ。(5) The separator for a lead-acid battery according to claim 1, wherein the porous thermoplastic resin layer is a sheet-like separator containing polyethylene as a main component.
対の熱可塑性樹脂多孔体層を配して重ね、これを一対の
互いにかみ合って回転する歯車の間に挿入し、前記歯車
のピッチに対応した前記歯車の歯の先端圧力により、加
圧部分が連続した波状の軌跡を描くように加圧し、前記
熱可塑性樹脂多孔体層同志の接合をするとともに、前記
非溶接性多孔体層中に前記熱可塑性樹脂多孔体層より熱
可塑性樹脂を透過させて、前記非溶接性多孔体層と前記
熱可塑性樹脂多孔体層を接合した鉛蓄電池用セパレータ
の製造法。(6) Arrange and overlap a pair of thermoplastic resin porous layers so as to sandwich the pair of non-weldable porous layers inside, and insert this between a pair of gears that rotate while meshing with each other, and The tip pressure of the teeth of the gear corresponding to the pitch of the gear applies pressure so that the pressurized portion draws a continuous wavy locus, joins the thermoplastic resin porous layers to each other, and connects the non-weldable porous body. A method for manufacturing a separator for a lead-acid battery, in which the non-weldable porous layer and the porous thermoplastic resin layer are joined by allowing a thermoplastic resin to pass through the porous thermoplastic resin layer into the layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300759A JPH04171656A (en) | 1990-11-05 | 1990-11-05 | Separator for lead-acid battery and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300759A JPH04171656A (en) | 1990-11-05 | 1990-11-05 | Separator for lead-acid battery and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04171656A true JPH04171656A (en) | 1992-06-18 |
Family
ID=17888758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2300759A Pending JPH04171656A (en) | 1990-11-05 | 1990-11-05 | Separator for lead-acid battery and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04171656A (en) |
Cited By (2)
| 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 |
-
1990
- 1990-11-05 JP JP2300759A patent/JPH04171656A/en active Pending
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 |
| 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 |
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