JPS5938709B2 - Manufacturing method for pin-type batteries - Google Patents
Manufacturing method for pin-type batteriesInfo
- Publication number
- JPS5938709B2 JPS5938709B2 JP54050138A JP5013879A JPS5938709B2 JP S5938709 B2 JPS5938709 B2 JP S5938709B2 JP 54050138 A JP54050138 A JP 54050138A JP 5013879 A JP5013879 A JP 5013879A JP S5938709 B2 JPS5938709 B2 JP S5938709B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- winding
- metal electrode
- core rod
- pin
- 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
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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
-
- 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)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
本発明は、ピン形電池、例えば夜釣浮子用に最近広く使
用されているピン形リチウム電池のリチウム負極とセパ
レータとを一体化する方法を改良し、電池の生産性に優
れた状態で生産することのできる製造法を提供するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention improves a method for integrating a lithium negative electrode and a separator of a pin-type lithium battery, which has recently been widely used for night fishing floats, and improves the productivity of the battery. The present invention provides a manufacturing method that allows production in excellent condition.
ピン形リチウム電池は第１図に示す如く、負極集電体兼
端子をなす金属芯棒１に柔軟な短冊状のリチウム負極２
をパイプ状に巻きつけ、この負極の外側にさらにポリプ
ロピレン繊維の不織布よりなるセパレータ３を巻きつけ
て負極組立体とし、正極端子を兼ねたアルミニウム製の
細長い有底筒状ケース４の内面に塗着あるいは張りつけ
等により内張りはフッ化炭素あるいは二酸化マンガンを
活物質とした正極５の内側に挿入することで組立てられ
ている゜なお図中６はゴム製封口体、４’は芯棒に設け
た負極抜け止め用のストッパーである。As shown in Figure 1, a pin-type lithium battery has a flexible strip-shaped lithium negative electrode 2 attached to a metal core rod 1 that serves as a negative electrode current collector and terminal.
is wound into a pipe shape, and a separator 3 made of a non-woven fabric of polypropylene fibers is further wrapped around the outside of this negative electrode to form a negative electrode assembly, which is applied to the inner surface of an elongated aluminum cylindrical case 4 with a bottom that also serves as a positive electrode terminal. Alternatively, the inner lining is assembled by inserting it inside the positive electrode 5, which uses carbon fluoride or manganese dioxide as the active material. It is a stopper to prevent it from falling out.
第２図はこの負極組立体の製作過程を示し、セパレータ
３はリチウム負極２への巻きつけが容易なように菱形に
形成されていて、巻きつけ完了後のセパレータ先端３’
は正極内側への挿入時にめくれ上つて挿入に支障を与え
ることのないよう熱溶着されて丸みのある状態に固定さ
れている。これまでのこの種負極組立体の製作は、主に
作業者の手作業に頼つていたため、量産の面では満足の
ゆくものではなく、巻きつけたセパレータの解けに対し
ても何ら対策はとられていなく、正極内側への挿入作業
も能率的ではなかつた。Fig. 2 shows the manufacturing process of this negative electrode assembly, in which the separator 3 is formed into a diamond shape so that it can be easily wrapped around the lithium negative electrode 2, and the separator tip 3' after winding is completed.
is heat-welded and fixed in a rounded state so that it will not curl up and interfere with insertion when inserted into the inside of the positive electrode. Until now, the production of this type of negative electrode assembly has mainly relied on the manual labor of workers, which has not been satisfactory in terms of mass production, and no measures have been taken to prevent the separator wrapped around it from unraveling. The insertion work into the inside of the positive electrode was also inefficient.
本発明は、このようなピン形電池を生産性よく自動的に
製造することのできる方法を提供するものである。The present invention provides a method for automatically manufacturing such pin-shaped batteries with high productivity.
以下、その実施例を図により説明する０第３図は負極組
立体を製作する装置の概略図であり、７は間欠回転する
割出板であり、帯状のリチウムシート供給部８、帯状の
セパレータ供給部９をそれぞれつないでいて、金属芯棒
供給部イ、リチウム負極成形部口、セパレータ巻きつけ
部ハ及びセパレータ溶着部二の各過程を順次移動してゆ
く〇金属芯棒１は第２図に示す如くストツパ一Ｖを有し
た針状の形で供給部イで割出板７のコレツトチヤツク１
０に供給され、割出板７の回転によりリチウム成形部口
に至る。The embodiment will be explained below with the help of drawings.0 Fig. 3 is a schematic diagram of an apparatus for manufacturing a negative electrode assembly, in which 7 is an index plate that rotates intermittently, a strip-shaped lithium sheet supply section 8, and a strip-shaped separator. The supply parts 9 are connected to each other, and the metal core rod 1 is sequentially moved through each process of the metal core supply part A, the lithium negative electrode forming part opening, the separator winding part C, and the separator welding part 2. The metal core rod 1 is shown in FIG. As shown in FIG.
0, and reaches the lithium molding part opening by rotation of the index plate 7.
リチウム成形部口では第４図に示す如く、リチウムシー
ト供給部８より送られてきたリチウムシート２ａが上カ
ツタ一１１と下カツタ一１２により短冊形の所定寸法２
に切断され、可動下型１３に設けた断面半円形の成形溝
１４上に真空吸引１５によつて保持される。At the mouth of the lithium molding section, as shown in FIG. 4, the lithium sheet 2a fed from the lithium sheet supply section 8 is cut into a rectangular shape with a predetermined size 2 by the upper cutter 11 and the lower cutter 12.
The mold is cut into sections and held on a molding groove 14 with a semicircular cross section provided in the movable lower mold 13 by vacuum suction 15 .
そして下型１３が矢印ホの状態で上昇してゆき、溝１４
上のリチウム２はチヤツク１０に保持された芯棒１に下
側から押しつけられる０これにより第５図に示す如くリ
チウム２は略Ｕ字状に芯棒１と成形溝１４とにより成形
される０ついで第６図の如くクリツプ形のカール型１６
が作動し、Ｕ字状のリチウム開放端をつまんで芯棒１の
上側にパイプ状となるように巻きつける〇芯棒１に巻き
つけられたリチウム負極２は、芯棒１がコレツトチヤツ
ク１０に保持されたまま、割出板７の回転によりセパレ
ータ巻きつけ部ハに至る〇ここではリチウム負極２が、
ポリプロピレン不織布セパレータ３を真空吸引１７によ
り片面に保持した巻き込み治具１８と、巻きつけローラ
１９との間に位置する０巻き込み治具１８は、第８図に
示す如く断面半円形状の巻き込み溝２０と、セパレータ
３を吸引する真空吸引孔２１とを有していて、吸引孔２
１はホース２２でバキユーム装置（図示せず）につなが
れている。Then, the lower mold 13 rises in the state of arrow H, and the groove 14
The upper lithium 2 is pressed from below against the core rod 1 held by the chuck 10. As a result, the lithium 2 is formed into a substantially U-shape by the core rod 1 and the forming groove 14, as shown in FIG. Next, as shown in Fig. 6, a clip-shaped curl mold 16 is formed.
is activated, pinch the U-shaped lithium open end, and wrap it around the top of the core rod 1 in a pipe shape. The lithium negative electrode 2 wrapped around the core rod 1 is held by the core rod 1 in the collection chuck 10. With the rotation of the index plate 7, the lithium negative electrode 2 reaches the separator wrapping part C. Here, the lithium negative electrode 2 is
The winding jig 18, which is located between the winding jig 18 holding the polypropylene nonwoven fabric separator 3 on one side by the vacuum suction 17 and the winding roller 19, has a winding groove 20 having a semicircular cross section as shown in FIG. and a vacuum suction hole 21 for suctioning the separator 3.
1 is connected to a vacuum device (not shown) by a hose 22.
さらにこの巻き込み治具１８は、矢印へに示す如くセパ
レータ３をリチウム負極に巻きつける際に移動し、巻き
つけ完了時点で元に後退する〇一方巻きつけローラ１９
はセパレータ巻きつけ時にリチウム負極と接して反時計
方向に矢印卜に示す如く回転し、セパレータ３をリチウ
ム負極の外側に巻きつけるものであり、外周の大半はセ
パレータ巻きつけ時のすべり止めのためにゴムライニン
グ２３が施されていて、一部２４のみが金属面を呈し、
この部分にヒータ２５を埋め込んで加熱部２６としてい
る。Further, this winding jig 18 moves as shown by the arrow when winding the separator 3 around the lithium negative electrode, and returns to its original position when the winding is completed. On the other hand, the winding roller 19
When the separator is being wound, the separator 3 is in contact with the lithium negative electrode and rotates counterclockwise as shown by the arrow to wrap the separator 3 around the outside of the lithium negative electrode, and most of the outer periphery is to prevent slipping when the separator is being wound. A rubber lining 23 is applied, and only a portion 24 has a metal surface.
A heater 25 is embedded in this portion to form a heating section 26.
なおセパレータ３はリチウム負極への巻きつけを容易に
するため、巻き込み治具１８に供給された時点では、第
９図に示す如く菱形の所定寸法に切断されている〇セパ
レータ３の巻きつけは、巻き込み治具１８を矢印への如
く移動させて巻き込み溝２０をリチウム負極２に押しつ
けることで、第８図の破線で示す如く、セパレータ３の
先端３′が巻きつけローラ１９側に接するように浮き上
がる。In order to facilitate winding of the separator 3 around the lithium negative electrode, the separator 3 is cut into a diamond-shaped predetermined size as shown in FIG. 9 when it is supplied to the winding jig 18. By moving the winding jig 18 in the direction of the arrow and pressing the winding groove 20 against the lithium negative electrode 2, the tip 3' of the separator 3 is lifted up so as to come into contact with the winding roller 19 side, as shown by the broken line in FIG. .
これと同時に芯棒１をコレツトチヤツク１０の回転によ
り時計方向に回転させるとともに巻きつけローラ１９も
反時計方向に回転させると、セパレータ３の先端３５が
リチウム負極２に沿えられて瞬時にセパレータ３の巻き
つけが行なえる０なお巻き込治具１８に作動させていた
真空吸着は、コレツトチヤツク１０及び巻きつけローラ
１９が回転し始めた時点で吸引機能を停止させ、セパレ
ータの治具面に沿つたすべり移動を良好にするとともに
リチウム負極の回転周速度を巻きつけローラのそれと同
等あるいはそれ以上に早めると、セパレータの巻きつけ
が円滑にできる０又巻きつけローラ１９はセパレータ３
のリチウム負極２への巻きつけが完了した時点で加熱部
２６がセパレータの最外周端部に対応するよう位置づけ
られているので、セパレータ最外周端部は加熱部２６で
熱溶着され内側のセパレータ部分と固定されるため、巻
きつけ完了時点後において、セパレータ３の巻きほどけ
はない。セパレータ３の巻きつけが完了した後に芯棒１
は割出板７の回転によりセパレータ溶着部二に送られ、
ここで第１０図に示す如くセパレータの巻いただけの先
端３′１にヒータ２７が対向し、この部分を加熱溶融し
て溶融樹脂の表面張力により略半球状の先端２８に加工
する〇このようにして形成した負極組立体をこれまで同
様、ケース４に内張りされた正極５の内側に挿入し、封
口体をかしめれば、第１図に示すピン形電池が形成でき
る〇なお、セパレータの先端が半球形状に加工され、か
つセパレータの最外周部がほどけることのないよう熱溶
着されているので、負極組立体の正極内側への挿入は極
めて円滑に行える〇このように本発明の製造法は、巻き
込み溝と真空吸引孔とを有した巻き込み治具に吸着され
た熱溶融性樹脂繊維よりなるセパレータと、周面の一部
に加熱部を有した巻きつけローラとの間に芯棒に巻きつ
けた柔軟な金属電極を位置させ、金属電極をセパレータ
に接してこれを巻き込み溝に押し込むように回転させる
とともに、巻き込み治具の真空吸引解除時に巻きつけロ
ーラを回転させて浮き上つたセパレータの先端を巻き込
んでセパレータ全体を金属電極に巻きつけ、セパレータ
の最外周端部を巻きつけローラの加熱部により熱溶着し
て固定したものであるから、これまでに比べ極めて能率
的に負極組立体を生産することができ、ピン形電池の生
産性を高めることができる〇At the same time, when the core rod 1 is rotated clockwise by the rotation of the collection chuck 10 and the winding roller 19 is also rotated counterclockwise, the tip 35 of the separator 3 is brought along the lithium negative electrode 2 and the separator 3 is instantly wound. The vacuum suction that was activated on the separator winding jig 18, which allows the separator to be separated, is stopped when the collection chuck 10 and winding roller 19 begin to rotate, and the separator slides along the jig surface. If the circumferential speed of the lithium negative electrode is increased to be equal to or higher than that of the winding roller, the winding roller 19 can smoothly wind the separator.
Since the heating section 26 is positioned so as to correspond to the outermost peripheral end of the separator when the winding of the lithium negative electrode 2 is completed, the outermost peripheral end of the separator is thermally welded by the heating section 26 and the inner separator part Therefore, the separator 3 does not unwind after the winding is completed. After the winding of separator 3 is completed, core rod 1 is
is sent to the separator welding part 2 by the rotation of the index plate 7,
Here, as shown in FIG. 10, a heater 27 is placed opposite to the tip 3'1 of the separator, and this portion is heated and melted to form a substantially hemispherical tip 28 by the surface tension of the molten resin. As before, by inserting the negative electrode assembly formed inside the positive electrode 5 lined in the case 4 and caulking the sealing member, the pin-shaped battery shown in Fig. 1 can be formed. Note that the tip of the separator Since the separator is processed into a hemispherical shape and the outermost periphery of the separator is heat-welded to prevent it from unraveling, the negative electrode assembly can be inserted into the positive electrode very smoothly.In this way, the manufacturing method of the present invention , a separator made of heat-melting resin fibers adsorbed on a winding jig having a winding groove and a vacuum suction hole, and a winding roller having a heated part on a part of its circumference, the winding is wound around a core rod. Position the attached flexible metal electrode, place the metal electrode in contact with the separator, rotate it so as to push it into the winding groove, and when the vacuum suction of the winding jig is released, rotate the winding roller to remove the floating tip of the separator. The entire separator is wrapped around the metal electrode, and the outermost edge of the separator is wrapped and fixed by heat welding using the heating part of the roller, making it possible to produce negative electrode assemblies much more efficiently than ever before. 〇 The productivity of pin-type batteries can be increased.
第１図はピン形リチウム電池の断面図、第２図は負極組
立体の製造過程図、第３図は本発明の実施例で用いた負
極組立体製造装置の概略図、第４図、第５図及び第６図
は芯棒へのリチウム負極の巻きつけを示す説明図、第７
図はリチウム負極へのセパレータ巻きつけを示す斜視図
、第８図はその断面図、第９図はセパレータのリチウム
負極への巻きつけを示す説明図、第１０図はセパレータ
先端の熱溶着を示す図である〇１・・・・・・金属芯棒
、２・・・・・・柔軟な金属電極、３・・・・・・セパ
レータ、１０・・・・・・コレツトチヤツク、１８・・
・・・・巻き込み治具、１９・・・・・・巻きつけロー
ラ、２０・・・・・・巻き込み溝、２１・・・・・・真
空吸引子Ｌ２３・・・・・・ゴムライニング、２５・・
・・・・ヒータ、２６・・・・・・加熱部、２７・・・
・・化一タ。FIG. 1 is a cross-sectional view of a pin-type lithium battery, FIG. 2 is a manufacturing process diagram of a negative electrode assembly, FIG. 3 is a schematic diagram of a negative electrode assembly manufacturing apparatus used in an example of the present invention, and FIGS. Figures 5 and 6 are explanatory diagrams showing the winding of the lithium negative electrode around the core rod;
The figure is a perspective view showing the winding of the separator around the lithium negative electrode, Figure 8 is a cross-sectional view thereof, Figure 9 is an explanatory view showing the winding of the separator around the lithium negative electrode, and Figure 10 is the thermal welding of the tip of the separator. In the diagram, ○1...Metal core rod, 2...Flexible metal electrode, 3...Separator, 10...Collection chuck, 18...
... Winding jig, 19 ... Winding roller, 20 ... Winding groove, 21 ... Vacuum suction element L23 ... Rubber lining, 25・・・
... Heater, 26 ... Heating section, 27 ...
...Kaichita.
Claims (1)
形の巻き込み溝と真空吸引孔とを設けた巻き込み治具に
吸着された熱溶融性樹脂繊維よりなるセパレータと、周
面の一部に加熱部を有した巻きつけローラとの間に位置
させ、前記芯棒を、金属電極部分が前記巻き込み溝に対
応したセパレータと接触しこの部分を溝内に押し込むよ
うに回転させるとともに、前記巻き込み治具の真空吸引
解除時に巻きつけローラを回転させて前記浮き上つたセ
パレータの先端を巻き込んでセパレータ全体を金属電極
部分に巻きつけ、セパレータの最外周端部をこれに接触
する巻きつけローラの加熱部によつて熱溶着した金属電
極とセパレータとの組立体を、他方の電極を内脹した有
底筒形の電池ケース内に挿入することを特徴としたピン
形電池の製造法。 ２ 前記金属電極に巻きつけられたセパレータは、その
先端が加熱溶融されて略半球形状である特許請求の範囲
第１項記載のピン形電池の製造法。 ３ 前記芯棒に巻きつけられた金属電極の回転周速度が
、巻きつけローラのそれと同等かあるいはそれよりも早
い速度である特許請求の範囲第１項記載のピン形電池の
製造法。[Scope of Claims] 1. A separator made of thermofusible resin fibers that is adsorbed to a winding jig having a winding groove with a semicircular cross section and a vacuum suction hole, and a metal core rod around which a flexible metal electrode is wound. , the core rod is positioned between a winding roller having a heating part on a part of its circumferential surface, and the core rod is arranged such that the metal electrode part contacts a separator corresponding to the winding groove and pushes this part into the groove. At the same time, when the vacuum suction of the winding jig is released, the winding roller is rotated to wind the floating tip of the separator, and the entire separator is wound around the metal electrode portion, and the outermost peripheral end of the separator is brought into contact with this. A pin-type battery characterized in that an assembly of a metal electrode and a separator that are thermally welded by the heating part of a winding roller is inserted into a bottomed cylindrical battery case in which the other electrode is inwardly bulged. Manufacturing method. 2. The method of manufacturing a pin-shaped battery according to claim 1, wherein the separator wound around the metal electrode has a substantially hemispherical tip that is heated and melted. 3. The method for manufacturing a pin-shaped battery according to claim 1, wherein the rotational circumferential speed of the metal electrode wound around the core rod is equal to or faster than that of the winding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54050138A JPS5938709B2 (en) | 1979-04-23 | 1979-04-23 | Manufacturing method for pin-type batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54050138A JPS5938709B2 (en) | 1979-04-23 | 1979-04-23 | Manufacturing method for pin-type batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55141072A JPS55141072A (en) | 1980-11-04 |
| JPS5938709B2 true JPS5938709B2 (en) | 1984-09-18 |
Family
ID=12850777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54050138A Expired JPS5938709B2 (en) | 1979-04-23 | 1979-04-23 | Manufacturing method for pin-type batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5938709B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7357275B2 (en) * | 2018-10-10 | 2023-10-06 | パナソニックＩｐマネジメント株式会社 | Batteries and laminated batteries |
-
1979
- 1979-04-23 JP JP54050138A patent/JPS5938709B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55141072A (en) | 1980-11-04 |
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