JP3240995B2 - Manufacturing method of battery separator - Google Patents
Manufacturing method of battery separatorInfo
- Publication number
- JP3240995B2 JP3240995B2 JP14741898A JP14741898A JP3240995B2 JP 3240995 B2 JP3240995 B2 JP 3240995B2 JP 14741898 A JP14741898 A JP 14741898A JP 14741898 A JP14741898 A JP 14741898A JP 3240995 B2 JP3240995 B2 JP 3240995B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- cylindrical
- battery separator
- jig
- manufacturing
- 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
-
- 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)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、筒形アルカリ電池
の正極と負極を電池缶内で隔離するために用いられる電
池用セパレータの製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a battery separator used for separating a positive electrode and a negative electrode of a cylindrical alkaline battery in a battery can.
【０００２】[0002]
【従来の技術】図４は従来の電池用セパレータの製造方
法の一例を示す製造工程図である。2. Description of the Related Art FIG. 4 is a manufacturing process diagram showing an example of a conventional method for manufacturing a battery separator.
【０００３】従来この種の電池用セパレータ６を製造す
る際には、図４（ａ）に示すように、フープ状の原紙１
を所定寸法に切断し、円筒状に巻回して筒体２を形成し
た後、パーツフィーダ等で筒体２を底部形成工程に搬送
し、図４（ｂ）〜（ｅ）に示すように、筒体２の一端を
熱融着して閉塞している。Conventionally, when a battery separator 6 of this kind is manufactured, as shown in FIG.
Is cut into a predetermined size, and wound into a cylindrical shape to form a cylindrical body 2, and then the cylindrical body 2 is transported to a bottom forming step by a parts feeder or the like, and as shown in FIGS. 4B to 4E, One end of the cylindrical body 2 is closed by heat fusion.
【０００４】そして、このときの閉塞性を確保するた
め、熱融着に先立って筒体２の折曲加工を行っている。
すなわち、図４（ｂ）に示すように、筒体２を心棒５に
嵌着し、筒体２の上端に刃状金型４を下向きに押し当て
て、図４（ｃ）に示すように、窪み２ｂを形成し、その
状態で、図４（ｄ）に示すように、筒体２の上端に熱カ
ール金型９を押し当てる。すると、図４（ｅ）に示すよ
うに、半球面状の底部２ａが形成され、電池用セパレー
タ６が完成する。[0004] In order to secure the obstruction at this time, the cylindrical body 2 is bent before the heat fusion.
That is, as shown in FIG. 4B, the cylindrical body 2 is fitted to the mandrel 5, and the blade-shaped mold 4 is pressed downward on the upper end of the cylindrical body 2, and as shown in FIG. Then, a depression 2b is formed, and in this state, a hot curl mold 9 is pressed against the upper end of the cylindrical body 2 as shown in FIG. Then, as shown in FIG. 4E, a hemispherical bottom 2a is formed, and the battery separator 6 is completed.
【０００５】[0005]
【発明が解決しようとする課題】しかし、これでは次の
ような不都合があった。However, this has the following disadvantages.
【０００６】第１に、筒体２をパーツフィーダ等で搬送
しなければならないので、機械的要因や自重などで筒体
２の開口端部が変形したり、潰れたりする恐れがあり、
電池用セパレータ６の生産性低下につながる。First, since the cylindrical body 2 must be conveyed by a parts feeder or the like, the opening end of the cylindrical body 2 may be deformed or crushed due to mechanical factors or its own weight.
This leads to a decrease in productivity of the battery separator 6.
【０００７】第２に、筒体２の上端に窪みを形成すると
き、筒体２の硬さ等の性質によっては窪み２ｂを付けに
くく、従って筒体２の底部２ａの閉塞性が不完全とな
る。この場合、刃状金型４を押し当てる強さや時間を調
節して無理に窪み２ｂを付けようとすると、筒体２の破
損や生産性低下を惹起することから、必然的に原紙１の
材質の選択幅が狭くなってしまう。Second, when forming a dent at the upper end of the cylinder 2, it is difficult to form the dent 2b depending on the properties of the cylinder 2 such as hardness. Therefore, it is considered that the obstruction of the bottom 2a of the cylinder 2 is incomplete. Become. In this case, if the depression 2b is forcibly formed by adjusting the strength or time for pressing the blade-shaped mold 4, the cylindrical body 2 may be damaged or the productivity may be reduced. Selection range becomes narrow.
【０００８】本発明は、こうした事情に鑑み、底部閉塞
性を確保しつつ生産性を高めることが可能な電池用セパ
レータの製造方法を提供することを目的とする。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method of manufacturing a battery separator capable of increasing productivity while securing the obstruction at the bottom.
【０００９】[0009]
【課題を解決するための手段】すなわち、本発明に係る
電池用セパレータの製造方法は、原紙（１）を円筒状に
巻回して筒体（２）を形成し、この筒体を円筒形治具
（３）で形状保持して底部形成工程に搬送し、この筒体
の一端に対して棒状治具（７）を当該筒体にほぼ直交さ
せた状態を維持しつつ斜めに押し当てることにより、当
該筒体の一端片側（２ｃ）を窪ませてほぼ直角に畳み込
み、この状態で、この筒体の一端に熱カール金型（９）
を押し当てて熱融着することにより、当該筒体の一端を
閉塞して底部（２ａ）を形成し、その後、この筒体を前
記円筒形治具から取り出すようにして構成される。That is, according to a method of manufacturing a battery separator according to the present invention, a base paper (1) is wound into a cylindrical shape to form a cylindrical body (2), and this cylindrical body is formed into a cylindrical shape. ingredients (3) in and shape retention and conveyed to the bottom forming process, the cylindrical body
The rod-shaped jig (7) is positioned at right angles to one end of
Pressing diagonally while maintaining the
One side (2c) of the cylindrical body is depressed and folded at a substantially right angle
In this state, a heat curl mold (9) is attached to one end of the cylindrical body.
By pressing and heat-sealing, one end of the cylindrical body is
It is configured such that the bottom (2a) is formed by closing and then the cylindrical body is taken out from the cylindrical jig.
【００１０】また、本発明は、上記筒体（２）の畳込長
さ（Ｌ２）が当該筒体の内径（Ｄ２）より長くなるよう
にして構成される。[0010] The present invention also provides a convoluted length of the cylindrical body (2).
So that the length (L2) is longer than the inner diameter (D2) of the cylindrical body.
It is composed.
【００１１】[0011]
【００１２】[0012]
【００１３】[0013]
【００１４】[0014]
【００１５】なお、括弧内の番号等は図面において対応
する要素を表わす便宜的なものであり、従って、本発明
は図面上の記載に限定拘束されるものではない。このこ
とは「特許請求の範囲」の欄についても同様である。It should be noted that the numbers in parentheses and the like are for convenience showing the corresponding elements in the drawings, and therefore, the present invention is not limited to the description on the drawings. The same applies to the column of “Claims”.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１７】図１は本発明に係る電池用セパレータの製
造方法の一実施形態を示す製造工程図、図２は図１に示
す製造工程のうち底部形成工程を示す詳細図、図３は図
２のＡ−Ａ線による拡大断面図である。FIG. 1 is a manufacturing process diagram showing one embodiment of a method for manufacturing a battery separator according to the present invention, FIG. 2 is a detailed diagram showing a bottom portion forming process in the manufacturing process shown in FIG. 1, and FIG. FIG. 4 is an enlarged sectional view taken along line AA of FIG.
【００１８】本発明に係る電池用セパレータの製造方法
は、次の手順による。The method for producing the battery separator according to the present invention is as follows.
【００１９】まず、図１（ａ）に示すように、水溶性バ
インダー成分を含むフープ状の原紙１を用意し、この原
紙１の適所（後述する筒体２の巻終り上端部、巻終り中
央部および巻終り下端部に相当する３箇所）にノズル１
０で水分を噴射添加する。この際、水分の添加長さは、
後述する筒体２の１周分に相当する長さ以上になるよう
にする。なお、ここで添加する水分には少量の水溶性バ
インダーを加えてもよい。First, as shown in FIG. 1 (a), a hoop-shaped base paper 1 containing a water-soluble binder component is prepared, and the base paper 1 is placed at an appropriate position (upper end, upper end, end center of a tubular body 2 described later). No. 1 at the end and the end of the winding
At 0, water is injected. At this time, the length of addition of water is
The length is set to be equal to or longer than a length corresponding to one round of the cylindrical body 2 described later. Note that a small amount of a water-soluble binder may be added to the water added here.
【００２０】その後、この原紙１を所定寸法に切断し、
図１（ｂ）に示すように、所定の径のマンドレル１２に
円筒状に巻き付けて筒体２を形成する。このとき、原紙
１の水分添加箇所を熱板を押しつけて加熱することで水
分を蒸発させる。すると、原紙１に含まれる水溶性バイ
ンダー成分が水分の蒸発によって固化し、筒体２がその
円筒形状のまま固定される。この際、原紙１の水分添加
箇所（すなわち、水溶性バインダー成分の固化箇所）
は、上述したとおり、筒体２の巻終り上端部、巻終り中
央部および巻終り下端部に相当する３箇所であり、しか
も、その水分の添加長さ（すなわち、水溶性バインダー
成分の固化長さ）は筒体２の１周分に相当する長さ以上
であるため、筒体２の固定は確実なものとなる。Thereafter, the base paper 1 is cut into a predetermined size,
As shown in FIG. 1 (b), a cylindrical body 2 is formed by winding the cylindrical body around a mandrel 12 having a predetermined diameter. At this time, moisture is evaporated by pressing a hot plate against the moisture-added portion of the base paper 1 and heating it. Then, the water-soluble binder component contained in the base paper 1 is solidified by the evaporation of moisture, and the cylindrical body 2 is fixed in its cylindrical shape. At this time, a location where water is added to the base paper 1 (that is, a location where the water-soluble binder component is solidified).
As described above, there are three positions corresponding to the upper end of the winding end, the center of the winding end, and the lower end of the winding end of the cylindrical body 2, and furthermore, the added length of the water (that is, the solidification length of the water-soluble binder component). ) Is equal to or longer than the length corresponding to one round of the cylinder 2, so that the cylinder 2 is securely fixed.
【００２１】次いで、図１（ｃ）に示すように、この筒
体２をマンドレル１２から抜き、所定の円筒形治具３の
保持孔３ａに移して挿通する。この円筒形治具３の保持
孔３ａは、その内径が筒体２の外径Ｄ１とほぼ同じで、
その長さが筒体２の長さＬ１のほぼ半分以上となってい
るため、筒体２は円筒形治具３によってその形状が確実
に保持される。そして、筒体２が円筒形治具３に挿通さ
れた状態で、これら筒体２および円筒形治具３を底部形
成工程に搬送する。この際、筒体２は円筒形治具３に挿
通された状態が維持されるので、搬送中に機械的要因や
自重などで筒体２の開口端部が変形したり、潰れたりす
る恐れはない。Next, as shown in FIG. 1 (c), the cylindrical body 2 is pulled out of the mandrel 12, transferred to a holding hole 3a of a predetermined cylindrical jig 3, and inserted. The inner diameter of the holding hole 3a of the cylindrical jig 3 is substantially the same as the outer diameter D1 of the cylindrical body 2.
Since the length is approximately half or more of the length L <b> 1 of the cylinder 2, the shape of the cylinder 2 is reliably held by the cylindrical jig 3. Then, in a state where the cylindrical body 2 is inserted through the cylindrical jig 3, the cylindrical body 2 and the cylindrical jig 3 are transported to the bottom forming step. At this time, since the state in which the cylindrical body 2 is inserted through the cylindrical jig 3 is maintained, there is a possibility that the opening end of the cylindrical body 2 is deformed or crushed due to mechanical factors or own weight during transportation. Absent.
【００２２】そして、底部形成工程に移行し、筒体２が
円筒形治具３に挿通された状態のまま、図２に示すよう
に、心棒５で筒体２の高さ方向と径方向を支持した上で
筒体２の一端を熱融着して閉塞する。それには、図２
（ａ）に示すように、筒体２の上端に対して棒状治具７
を斜めに押し当てることにより、図２（ｂ）に示すよう
に、筒体２の上端片側２ｃを窪ませて直角に畳み込む。
このとき、図３に示すように、筒体２の畳込長さＬ２を
筒体２の内径Ｄ２より長くする。この状態で、図２
（ｃ）に示すように、筒体２の上端に熱カール金型９を
押し当てて熱融着する。すると、図１（ｄ）に示すよう
に、筒体２の上端に半球面状の底部２ａが形成される。
この際、筒体２の上端片側２ｃは直角に折れ曲がってい
るので、その反発が抑えられることから、筒体２の硬さ
等の性質によらず底部２ａの閉塞性（封止度）が向上す
る。しかも、図３に示すように、筒体２の畳込長さＬ２
は筒体２の内径Ｄ２より長く、そのため筒体２の上端片
側２ｃはその対向側に当接して係止されるので、筒体２
の上端の反発は一層抑制され、底部２ａの閉塞性がさら
に向上する。また、底部形成工程においても筒体２は円
筒形治具３に挿通された状態が維持されるので、底部形
成中に筒体２がズレる恐れはない。Then, the process proceeds to the bottom forming step, and while the cylindrical body 2 is inserted through the cylindrical jig 3, the mandrel 5 adjusts the height direction and the radial direction of the cylindrical body 2 as shown in FIG. After being supported, one end of the cylindrical body 2 is heat-sealed and closed. Figure 2
As shown in FIG.
2b, the upper end 2c of the cylindrical body 2 is depressed and folded at a right angle, as shown in FIG. 2B.
At this time, as shown in FIG. 3, the folded length L2 of the cylinder 2 is made longer than the inner diameter D2 of the cylinder 2. In this state, FIG.
As shown in (c), a thermal curl mold 9 is pressed against the upper end of the cylindrical body 2 and thermally fused. Then, as shown in FIG. 1D, a hemispherical bottom 2 a is formed at the upper end of the cylindrical body 2.
At this time, since the upper end side 2c of the cylindrical body 2 is bent at a right angle, the rebound is suppressed, so that the closing property (sealing degree) of the bottom portion 2a is improved regardless of the properties such as the hardness of the cylindrical body 2. I do. Moreover, as shown in FIG.
Is longer than the inner diameter D2 of the cylindrical body 2, so that the upper end side 2c of the cylindrical body 2 comes into contact with the opposite side and is locked, so that the cylindrical body 2
The repulsion at the upper end of the bottom 2a is further suppressed, and the obstruction of the bottom 2a is further improved. Also, in the bottom forming step, the state in which the cylindrical body 2 is inserted into the cylindrical jig 3 is maintained, so that there is no possibility that the cylindrical body 2 is displaced during the formation of the bottom.
【００２３】ここで、電池用セパレータ６が完成し、本
発明に係る電池用セパレータの製造方法が終了する。Here, the battery separator 6 is completed, and the method for manufacturing a battery separator according to the present invention is completed.
【００２４】このように、電池用セパレータ６は、その
製造に際して筒体２の形成から底部形成まで円筒形治具
３に挿通された状態が維持されて形状保持性に優れるの
で、電池用セパレータ６の生産性が向上する。As described above, since the battery separator 6 is maintained in a state of being inserted through the cylindrical jig 3 from the formation of the cylindrical body 2 to the formation of the bottom during the manufacture thereof and is excellent in shape retention, the battery separator 6 Productivity is improved.
【００２５】[0025]
【実施例】以下、本発明の実施例について説明する。Embodiments of the present invention will be described below.
【００２６】＜実施例１＞ビニロン繊維２０重量％とパ
ルプ繊維６５〜７５重量％とを混抄し、ポリビニルアル
コール系の水溶性バインダ１５〜５重量％を加えて、厚
さ１２０μｍの原紙を調製した。Example 1 20% by weight of vinylon fiber and 65 to 75% by weight of pulp fiber were mixed, and 15 to 5% by weight of a polyvinyl alcohol-based water-soluble binder was added to prepare a base paper having a thickness of 120 μm. .
【００２７】この原紙を用い、上述した本発明に係る電
池用セパレータの製造方法を適用して、単３型アルカリ
乾電池用のセパレータ（本発明品）を生産した。ここ
で、セパレータの生産スピードは毎分６００個とした。Using the base paper and applying the above-described method for producing a battery separator according to the present invention, a separator for AA alkaline batteries (product of the present invention) was produced. Here, the production speed of the separator was 600 pieces per minute.
【００２８】＜比較例１＞実施例１で調製した原紙を用
い、従来の電池用セパレータの製造方法を適用して、単
３型アルカリ乾電池用のセパレータ（従来品）を生産し
た。ここで、セパレータの生産スピードは毎分３００
個、すなわち実施例１の場合の半分とした。<Comparative Example 1> A separator for AA alkaline batteries (conventional product) was produced by using the base paper prepared in Example 1 and applying the conventional method for producing a battery separator. Here, the production speed of the separator is 300 per minute.
Pieces, that is, half of the case of the first embodiment.
【００２９】＜外観不良率試験＞こうして製造した本発
明品および従来品について、外観不良品（折れ・潰れ、
開き、破れ）の発生を調べた。その結果、従来品では毎
分５個程度（すなわち、約１．７％）の外観不良率であ
ったのに対し、本発明品では外観不良品は発生しなかっ
た。つまり、従来品に比べて本発明品は、生産スピード
を２倍に高めたにも拘わらず外観不良品の発生が少なく
なり、生産性と歩留まりの双方が向上した。<Appearance defective rate test> The products of the present invention and the conventional products thus manufactured are defective in appearance (broken / crushed,
Opening and tearing) were investigated. As a result, the appearance defect rate of the conventional product was about 5 pieces per minute (that is, about 1.7%), whereas the appearance defect product did not occur in the product of the present invention. That is, although the production speed of the product of the present invention was doubled as compared with the conventional product, the occurrence of defective products was reduced, and both the productivity and the yield were improved.
【００３０】＜底部閉塞性試験＞また、上述の本発明品
および従来品の底部閉塞性（底部封止度）を比較するた
め、これら本発明品および従来品を用いて単３型アルカ
リ乾電池を１０，０００個ずつ製造し、温度６０℃で２
０日間貯蔵した時点での開路電圧の劣化を調べた。その
結果、従来品を用いた場合には１０，０００個中３個
（すなわち、０．０３％）の電池に電圧不良が発生した
のに対し、本発明品を用いた場合、電圧不良が発生した
電池は皆無であった。従って、底部閉塞性についても、
本発明品が従来品より優れていると結論づけられる。<Bottom Occlusion Test> In order to compare the bottom occlusion (bottom sealing degree) of the above-described product of the present invention and the conventional product, an AA alkaline battery was prepared using the product of the present invention and the conventional product. 10,000 pieces are manufactured at a temperature of 60 ° C and 2
The deterioration of the open-circuit voltage when stored for 0 days was examined. As a result, a voltage failure occurred in three out of 10,000 batteries (that is, 0.03%) when the conventional product was used, whereas a voltage failure occurred when the product of the present invention was used. There were no batteries. Therefore, for the bottom obstruction,
It is concluded that the product of the present invention is superior to the conventional product.
【００３１】[0031]
【発明の効果】以上説明したように本発明によれば、原
紙１を円筒状に巻回して筒体２を形成し、この筒体２を
円筒形治具３で形状保持して底部形成工程に搬送し、こ
の筒体２の一端に対して棒状治具７を当該筒体２にほぼ
直交させた状態を維持しつつ斜めに押し当てることによ
り、当該筒体２の一端片側２ｃを窪ませてほぼ直角に畳
み込み、この状態で、この筒体２の一端に熱カール金型
９を押し当てて熱融着することにより、当該筒体２の一
端を閉塞して底部２ａを形成し、その後、この筒体２を
前記円筒形治具３から取り出すようにして構成したの
で、電池用セパレータ６の製造に際して筒体２の形成か
ら底部形成まで円筒形治具３に挿通された状態が維持さ
れて形状保持性に優れることに加えて、筒体２の一端片
側２ｃの反発が抑えられて熱融着による筒体２の底部２
ａの閉塞性が向上することから、底部閉塞性を確保しつ
つ生産性を高めることが可能な電池用セパレータの製造
方法を提供することができる。As described above, according to the present invention, the base paper 1 is wound into a cylindrical shape to form the cylindrical body 2, and the cylindrical body 2 is held in shape by the cylindrical jig 3 to form the bottom portion. transported to, this
The rod-shaped jig 7 is attached to one end of the cylindrical body 2
By pressing diagonally while maintaining the orthogonal state
And depress the one end 2c of the cylindrical body 2 and fold it at a substantially right angle.
In this state, a heat curl mold is attached to one end of the cylindrical body 2.
9 by pressing and heat-sealing,
The bottom 2a is formed by closing the end, and then the cylindrical body 2 is taken out from the cylindrical jig 3. Therefore, when the battery separator 6 is manufactured, the cylindrical body 2 is formed from the cylindrical body 2 to the bottom. In addition to maintaining the state of being inserted into the shape jig 3 and having excellent shape retention , one end piece of the cylindrical body 2
The rebound of the side 2c is suppressed, and the bottom 2 of the cylindrical body 2 is thermally fused.
Since the closing property of a is improved , the bottom blocking property is secured.
And a method for manufacturing a battery separator capable of improving productivity.
【００３２】また本発明によれば、上記筒体２の畳込長
さＬ２が当該筒体２の内径Ｄ２より長くなるようにして
構成したので、筒体２の一端片側２ｃがその対向側に当
接して係止されることから、熱融着による筒体２の底部
２ａの閉塞性を一層向上させることができる。 Further, according to the present invention, the convoluted length of the cylindrical body 2
So that the length L2 is longer than the inner diameter D2 of the cylindrical body 2
With this configuration, one end 2c of the cylindrical body 2 is in contact with the opposite side.
The bottom part of the cylindrical body 2 by heat fusion
The obstruction of 2a can be further improved.
【００３３】[0033]
【００３４】[0034]
【００３５】[0035]
【００３６】[0036]
【図１】本発明に係る電池用セパレータの製造方法の一
実施形態を示す製造工程図である。FIG. 1 is a manufacturing process diagram showing one embodiment of a method for manufacturing a battery separator according to the present invention.
【図２】図１に示す製造工程のうち底部形成工程を示す
詳細図である。FIG. 2 is a detailed view showing a bottom portion forming step of the manufacturing steps shown in FIG.
【図３】図２のＡ−Ａ線による拡大断面図である。FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;
【図４】従来の電池用セパレータの製造方法の一例を示
す製造工程図である。FIG. 4 is a manufacturing process diagram showing an example of a conventional method for manufacturing a battery separator.
１……原紙 ２……筒体 ２ａ……底部 ２ｃ……一端片側（上端片側） ３……円筒形治具 ３ａ……保持孔 ６……電池用セパレータ ７……棒状治具 ９……熱カール金型 Ｄ１……筒体の外径 Ｄ２……筒体の内径 Ｌ１……筒体の長さ Ｌ２……筒体の畳込長さ DESCRIPTION OF SYMBOLS 1 ... Base paper 2 ... Cylindrical body 2a ... Bottom part 2c ... One end one side (upper end one side) 3 ... Cylindrical jig 3a ... Holding hole 6 ... Battery separator 7 ... Bar-shaped jig 9 ... Heat Curl mold D1 ... Outer diameter of cylinder D2 ... Inner diameter of cylinder L1 ... Length of cylinder L2 ... Fold length of cylinder
フロントページの続き (56)参考文献 特開 昭58−82465（ＪＰ，Ａ) 特開 昭54−137634（ＪＰ，Ａ) 特開 昭54−140937（ＪＰ，Ａ) 特開 昭53−41736（ＪＰ，Ａ) 実開 平３−109265（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 2/14 - 2/18 Continuation of front page (56) References JP-A-58-82465 (JP, A) JP-A-54-137634 (JP, A) JP-A-54-140937 (JP, A) JP-A-53-41736 (JP, A) , A) Hikaru 3-109265 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H01M 2/14-2/18
Claims (2)
（２）を形成し、 この筒体を円筒形治具（３）で形状保持して底部形成工
程に搬送し、この筒体の一端に対して棒状治具（７）を当該筒体にほ
ぼ直交させた状態を維持しつつ斜めに押し当てることに
より、当該筒体の一端片側（２ｃ）を窪ませてほぼ直角
に畳み込み、 この状態で、この筒体の一端に熱カール金型（９）を押
し当てて熱融着することにより、当該筒体の一端を閉塞
して底部（２ａ）を形成し、 その後、この筒体を前記円筒形治具から取り出すように
したことを特徴とする電池用セパレータの製造方法。1. A form a base paper (1) wound cylindrically tubular body (2), and conveyed to the bottom forming step the cylindrical body and the shape-retaining cylindrical jig (3), the cylindrical Attach the rod jig (7) to one end of the body
Pressing diagonally while maintaining the state of crossing
The one end (2c) of the cylindrical body is depressed so that
Then, in this state, a hot curl mold (9) is pressed onto one end of the cylindrical body.
One end of the cylindrical body is closed by heat sealing
A bottom portion (2a), and then removing the cylindrical body from the cylindrical jig.
体の内径（Ｄ２）より長くなるようにしたことを特徴と
する請求項１に記載の電池用セパレータの製造方法。2. The cylinder (2) has a convoluted length (L2).
The method for producing a battery separator according to claim 1, wherein the inner diameter (D2) is longer than the inner diameter (D2) of the body .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14741898A JP3240995B2 (en) | 1998-05-28 | 1998-05-28 | Manufacturing method of battery separator |
| US09/270,769 US6270833B1 (en) | 1998-05-28 | 1999-03-17 | Separator for an alkaline cell and a method of producing the separator |
| CNB991069153A CN1174503C (en) | 1998-05-28 | 1999-05-27 | Separator for alkaline cell and method of producing separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14741898A JP3240995B2 (en) | 1998-05-28 | 1998-05-28 | Manufacturing method of battery separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11339753A JPH11339753A (en) | 1999-12-10 |
| JP3240995B2 true JP3240995B2 (en) | 2001-12-25 |
Family
ID=15429871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14741898A Expired - Lifetime JP3240995B2 (en) | 1998-05-28 | 1998-05-28 | Manufacturing method of battery separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3240995B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100475838B1 (en) * | 2002-05-01 | 2005-03-10 | 유태승 | manufacture method and apparatus mold of electrode for power plug |
-
1998
- 1998-05-28 JP JP14741898A patent/JP3240995B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11339753A (en) | 1999-12-10 |
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