JPH04106868A - Manufacture of film battery - Google Patents
Manufacture of film batteryInfo
- Publication number
- JPH04106868A JPH04106868A JP2223316A JP22331690A JPH04106868A JP H04106868 A JPH04106868 A JP H04106868A JP 2223316 A JP2223316 A JP 2223316A JP 22331690 A JP22331690 A JP 22331690A JP H04106868 A JPH04106868 A JP H04106868A
- Authority
- JP
- Japan
- Prior art keywords
- terminal plate
- sealed
- film battery
- sealed body
- sealing body
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000010017 direct printing Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、フィルム電池の製造法に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a method for manufacturing a film battery.
従来の技術
近年、携帯用電子機器や電池使用機器は、小型・薄型化
が急速に進展している。それに伴い、前記電子機器の電
源として使用される電池についても、小型・薄型化の要
求が増えている。特にリチウムに代表される軽金属を負
極活物質としたフィルム電池は、第２図（ａ）に示すよ
うに、正極活物質３、電解質５及び負極活物質４を層状
に重ねた発電要素の上下に集電体を兼ねる２枚の端子板
１．２を配置し、この端子板１．２の周縁部を電気絶縁
性の封口体６を介して封口したものであって、厚さが０
．１腫のものが出来ている。従来、この種の電池の封口
部分の製造法は、第２図（ｂ）に示す様に熱可塑性樹脂
フィルム６を所定の窓枠型に打ち抜いて、前記２枚の端
子板１．２の間に配置し、該端子板ｌ、２の上下から熱
板圧着する方法が採用されてきた。BACKGROUND OF THE INVENTION In recent years, portable electronic devices and battery-powered devices have rapidly become smaller and thinner. Accordingly, there is an increasing demand for smaller and thinner batteries used as power sources for electronic devices. In particular, a film battery in which a light metal such as lithium is used as a negative electrode active material, as shown in FIG. Two terminal plates 1.2 that also serve as current collectors are arranged, and the peripheral edges of these terminal plates 1.2 are sealed with an electrically insulating sealing body 6, and the thickness is 0.
．． A tumor has formed. Conventionally, the method for manufacturing the sealing part of this type of battery is to punch out a thermoplastic resin film 6 into a predetermined window frame shape, as shown in FIG. A method has been adopted in which the terminal plates 1 and 2 are placed under hot plate pressure from above and below.
発明が解決しようとする課題
従来の技術で述べた製造法によると、電池の封口部分の
幅が狭いものでは、２枚の端子板の端部に熱板圧着する
際、第２図（ａ）に示す様に気泡７を噛んだまま接着し
てしまい、電池内部を外気から遮断する効果が長期間保
証できないという問題点があった。Problems to be Solved by the Invention According to the manufacturing method described in the prior art, when the width of the sealing part of the battery is narrow, when hot plate crimping is performed on the ends of two terminal boards, as shown in Fig. 2(a). As shown in the figure, there was a problem in that the air bubbles 7 were stuck together and the effect of insulating the inside of the battery from the outside air could not be guaranteed for a long period of time.
また、接着面積が気泡７を噛むこと番こより減少すると
、この様なフィルム電池を曲げて使用した場合、応力に
より接着面が剥がれてしまうという問題点があった。さ
らに、封口樹脂フィルム６を窓枠型に打ち抜いて端子板
１．２に接着するため生産性が劣り、コスト高となる問
題点を有していた。Furthermore, if the adhesive area is reduced by the number of bubbles 7, there is a problem that when such a film battery is used in a bent manner, the adhesive surface may peel off due to stress. Furthermore, since the sealing resin film 6 is punched out in the shape of a window frame and then adhered to the terminal board 1.2, productivity is poor and costs are high.
本発明は、従来の技術の有する上記問題点に鑑みてなさ
れたものであり、その目的とするところは、信輔性の高
い、生産性に優れたフィルム電池を提供することにある
。The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to provide a film battery with high reliability and excellent productivity.
課題を解決するための手段
上記目的を達成するために、本発明の製造法は、
正極活物’１３、電解質５および負極活物質４を層状に
重ねた発電要素の上下に集電体を兼ねる正極端子版１と
負極端子板２とを配置し、該端子板１．２の周縁部を電
気絶縁性の封口体６を介して封口した電池の製造法にお
いて、前記正極端子版１または／および前記負極端子板
２０周縁部に凹版重刷方式を用いて封口体６を形成し、
次いで、前記封口体６が前記正極端子版１と前記負極端
子板２との間に位置する様に前記端子板１．２を配置し
、
次いで、前記封口体６を加熱冷却することにより、前記
端子板１．２の間を封口することを特徴とするものであ
る。Means for Solving the Problems In order to achieve the above object, the manufacturing method of the present invention includes the following steps: The upper and lower parts of a power generation element in which a positive electrode active material 13, an electrolyte 5, and a negative electrode active material 4 are stacked in layers also serve as current collectors. A method for manufacturing a battery in which a positive terminal plate 1 and a negative terminal plate 2 are arranged, and the peripheral edge of the terminal plate 1.2 is sealed via an electrically insulating sealing body 6, in which the positive terminal plate 1 and/or the negative terminal plate 2 are sealed. A sealing body 6 is formed on the peripheral edge of the negative electrode terminal plate 20 using an intaglio reprinting method, and then the terminal plate is formed so that the sealing body 6 is located between the positive electrode terminal plate 1 and the negative electrode terminal plate 2. 1.2, and then heating and cooling the sealing body 6 to seal the space between the terminal plates 1.2.
作用
端子板の周縁部に封口体を凹版重刷方式で形成すること
により、端子板と封口体との間に気泡が入ることがない
、しかも、該封口体を融着することにより、正極端子版
と負極端子板との間を気泡が入らずに封口することがで
きる。By forming the sealing body on the peripheral edge of the working terminal plate using the intaglio overprinting method, air bubbles do not enter between the terminal plate and the sealing body, and by fusing the sealing body, the positive terminal plate The space between the terminal plate and the negative electrode terminal plate can be sealed without air bubbles entering.
実施例 実施例について図面を参照して説明する。Example Examples will be described with reference to the drawings.
第１図（ａ）は、本発明の製造法により製造したフィル
ム電池の外観斜視図であり、第１図（ｂ）は第１＠（ａ
）のＡ−Ａ’断面図で、第１図（ｃ）は本発明による製
造途中のフィルム電池の断面図である。ここで１は、正
極端子版、２は負極端子板、３は正極活物質、４は負極
板活物質、５ば電解質、６は封口体である。正極活物質
３は二酸化マンガンを主成分とし、電解質５はポリエチ
レンオキシドに過塩素酸リチウムを加えた高分子固体電
解質からなる。負極活物質４はリチウムを用いている。FIG. 1(a) is an external perspective view of a film battery manufactured by the manufacturing method of the present invention, and FIG. 1(b) is a
), and FIG. 1(c) is a sectional view of a film battery in the process of being manufactured according to the present invention. Here, 1 is a positive electrode terminal plate, 2 is a negative electrode terminal plate, 3 is a positive electrode active material, 4 is a negative electrode plate active material, 5 is an electrolyte, and 6 is a sealing body. The positive electrode active material 3 has manganese dioxide as a main component, and the electrolyte 5 is made of a solid polymer electrolyte made of polyethylene oxide and lithium perchlorate. The negative electrode active material 4 uses lithium.
これらの発電要素の上下に、ステンレス製の正極端子版
１と負極端子板２とを配置している。封口体６は、変性
ポリプロピレン、変性ポリエチレン等の熱可塑性樹脂を
用い、負極端子板２に凹版重刷方式により予め印刷して
おき、第１図（ｃ）に示す様に発電要素と封口体６を間
にはさむ樟に両端子板１．２を重ね、両端子板１．２を
加熱することにより融着封口した。この時、封口体６と
端子板１．２の間に気泡を挟むことなく第１図（ｂ）に
示す樺に封口でき、接着力が高く、かつ外部からのガス
バリアー性が高くなった。A positive terminal plate 1 and a negative terminal plate 2 made of stainless steel are arranged above and below these power generating elements. The sealing body 6 is made of a thermoplastic resin such as modified polypropylene or modified polyethylene, and is printed on the negative electrode terminal plate 2 in advance by an intaglio overprinting method, and the power generating element and the sealing body 6 are bonded together as shown in FIG. 1(c). Both terminal plates 1.2 were stacked on the camphor sandwiched between them, and both terminal plates 1.2 were fused and sealed by heating. At this time, the birch shown in FIG. 1(b) could be sealed without any air bubbles being sandwiched between the sealing body 6 and the terminal plate 1.2, and the adhesive force was high and the gas barrier property from the outside was improved.
なお、凹版重刷方式で端子板に封口樹脂を塗る方法は、
連続的にかつ高速度で塗ることが出来、また位置精度が
高いため、生産性に優れている。また、熱可塑性樹脂を
封口樹脂として用いると、熱硬化性樹脂と異なり、何度
でも溶融接着できるため、端子板への仮止めができ生産
上有利である。さらに、封口体幅が１〜５■のフィルム
電池を製造する時は、凹版重刷方式におけるドツトパタ
ーン径を０．０１〜０，５■にすると封口工程で接着界
面に気泡が残留することなく封口でき、電池の保存性能
が上がった。In addition, the method of applying sealing resin to the terminal board using the intaglio reprinting method is as follows.
It can be coated continuously and at high speed, and has high positional accuracy, so it has excellent productivity. Further, when a thermoplastic resin is used as the sealing resin, unlike a thermosetting resin, it can be melted and bonded any number of times, so it can be temporarily fixed to a terminal board, which is advantageous in terms of production. Furthermore, when manufacturing film batteries with a sealing body width of 1 to 5 square inches, if the dot pattern diameter in the intaglio reprinting method is set to 0.01 to 0.5 square meters, air bubbles will not remain at the adhesive interface during the sealing process. This improved battery storage performance.
発明の効果
以上のように、本発明によれば、二枚の端子板間に気泡
が入らずに封口できるため、接着力が高く、外部からの
ガスバリアー性が高い長期保存性に優れた高信転性のフ
ィルム電池を提供できる。Effects of the Invention As described above, according to the present invention, it is possible to seal the two terminal boards without any air bubbles between them, resulting in high adhesive strength, high gas barrier properties from the outside, and excellent long-term storage stability. We can provide reliable film batteries.
また、印刷方式を採用しているため、生産性が高くなる
。Additionally, since a printing method is used, productivity is increased.
第１１１Ｄ（ａ）は本発明により製造したフィルム電池
の外観斜視図、第１図（ｂ）は第１図（ａ）のＡ−Ａ’
断面図、第１図（ｃ）は本発明による製造途中のフィル
ム電池の断面図、第２１１Ｄ（ａ）は従来のフィルム電
池の断面図、第２図（ｂ）は従来方法による製造途中の
フィルム電池の断面図である。
■・・・正極端子版 ２・・・負極板端子板６・
・・封口体111D(a) is an external perspective view of a film battery manufactured according to the present invention, and FIG. 1(b) is AA' in FIG. 1(a).
211D (a) is a sectional view of a conventional film battery, and FIG. 2(b) is a sectional view of a film battery in the process of being manufactured by the conventional method. It is a sectional view of a battery. ■... Positive electrode terminal plate 2... Negative electrode terminal plate 6.
・Sealing body
Claims (1)
縁部に凹版直刷方式を用いて封口体（６）を形成し、 次いで、前記封口体（６）が前記正極端子版（１）と前
記負極端子板（２）との間に位置する様に前記端子板（
１、２）を配置し、 次いで、前記封口体（６）を加熱冷却することにより、
前記端子板（１、２）の間を封口することを特徴とする
、 フィルム電池の製造法。[Claims] A sealing body (6) is formed on the peripheral edge of the positive terminal plate (1) and/or the negative terminal plate (2) using an intaglio direct printing method, and then the sealing body (6) is The terminal plate (
1 and 2), and then by heating and cooling the sealing body (6),
A method for manufacturing a film battery, characterized in that the space between the terminal plates (1, 2) is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2223316A JPH04106868A (en) | 1990-08-24 | 1990-08-24 | Manufacture of film battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2223316A JPH04106868A (en) | 1990-08-24 | 1990-08-24 | Manufacture of film battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04106868A true JPH04106868A (en) | 1992-04-08 |
Family
ID=16796245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2223316A Pending JPH04106868A (en) | 1990-08-24 | 1990-08-24 | Manufacture of film battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04106868A (en) |
-
1990
- 1990-08-24 JP JP2223316A patent/JPH04106868A/en active Pending
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