JPH04121947A - Manufacture of sheet-like battery - Google Patents
Manufacture of sheet-like batteryInfo
- Publication number
- JPH04121947A JPH04121947A JP24041990A JP24041990A JPH04121947A JP H04121947 A JPH04121947 A JP H04121947A JP 24041990 A JP24041990 A JP 24041990A JP 24041990 A JP24041990 A JP 24041990A JP H04121947 A JPH04121947 A JP H04121947A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sealing resin
- resin sheet
- power generation
- generation element
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011347 resin Substances 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000010248 power generation Methods 0.000 claims abstract description 11
- -1 polypropylene Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011888 foil Substances 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000006258 conductive agent Substances 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000007784 solid electrolyte Substances 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 2
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- Y02E60/12—
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明はシート状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 sheet battery.
従来技術とその問題点
従来、この種のシート状電池は第３図の如き構造である
。即、負極活物質層、セパレータ、正極活物質層を層状
に重ねた発電要素の上下に、負極集電体及び正極集電体
を配置し、封口樹脂を熱加圧して封口し、−磁化したも
のである。Prior art and its problems Conventionally, this type of sheet battery has a structure as shown in FIG. Immediately, a negative electrode current collector and a positive electrode current collector were placed above and below a power generation element in which a negative electrode active material layer, a separator, and a positive electrode active material layer were stacked in layers, and the sealing resin was sealed by hot pressure and magnetized. It is something.
封口樹脂シートは予め発電要素を載！する部分を打ち抜
いた窓枠状のシートを作成し、集電体シートと重ね合わ
せる第４図に示した如き方法で行われていた。The sealing resin sheet is loaded with power generation elements in advance! This was carried out by the method shown in FIG. 4, in which a sheet shaped like a window frame was created by punching out the area to be filled, and then overlapped with a current collector sheet.
この様な従来の製造法では、窓枠状の封口樹脂シートが
変形しやすいために、集電体シートとの重ね合わせに際
して、位置決めが難しく、シワを生じ製造工程中におけ
る不良率が高く、生産性が低いという問題があった。In such conventional manufacturing methods, the window frame-shaped sealing resin sheet is easily deformed, making it difficult to position it when overlapping it with the current collector sheet, resulting in wrinkles and a high defect rate during the manufacturing process. There was a problem with low gender.
発明の目的
本発明は上記従来の問題点に鑑みなされたものであり、
生産性が高（、信頼性に優れたシート状電池を提供する
ことを目的とするものである。Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems.
The purpose is to provide a sheet-shaped battery with high productivity (and excellent reliability).
発明の構成
本発明は上記目的を達成するべく、
集電体シートと封口樹脂シートを重ね合わせた状態で、
封口樹脂シート層に切れ目を入れ、発電要素載置部分の
封口樹脂シートを除去することを特徴とするシート状電
池の製造法である。Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a method in which a current collector sheet and a sealing resin sheet are overlapped,
This method of manufacturing a sheet-like battery is characterized by making cuts in the sealing resin sheet layer and removing the sealing resin sheet at the portion where the power generation element is placed.
尚、封口樹脂シートが変性ポリプロピレン、変性ポリエ
チレン等の熱融着性樹脂である前記のシート状電池の製
造法である。In this method, the sealing resin sheet is a heat-fusible resin such as modified polypropylene or modified polyethylene.
実施例 以下、本発明の詳細について一実施例により説明する。Example Hereinafter, the details of the present invention will be explained using one example.
第１図及び第２図は、本発明の一実施例を示したシート
状電池の製造法を示した概略図であり、第３図はシート
状電池の断面図、第４図は従来の製造法を示した概略図
である。1 and 2 are schematic diagrams showing a method of manufacturing a sheet battery according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the sheet battery, and FIG. 4 is a conventional manufacturing method. FIG.
ここで１は集電体シート、２は封口樹脂シート、３は圧
着ロール、４はハーフカッター、５は吸引機、６は負極
集電体、７は負極、８はセパレータ、９は正極、１０は
正極集電体、１１は封口樹脂である。Here, 1 is a current collector sheet, 2 is a sealing resin sheet, 3 is a pressure roll, 4 is a half cutter, 5 is a suction device, 6 is a negative electrode current collector, 7 is a negative electrode, 8 is a separator, 9 is a positive electrode, 10 1 is a positive electrode current collector, and 11 is a sealing resin.
集電体シートはステンレス、鉄、ニッケル、銅等の材質
からなる厚み１５μｍの金属箔、封口樹脂シートは、変
性ポリプロピレン又は変性ポリエチレンである。The current collector sheet is a metal foil with a thickness of 15 μm made of a material such as stainless steel, iron, nickel, or copper, and the sealing resin sheet is made of modified polypropylene or modified polyethylene.
集電体シート上に封口樹脂ソートを重ね合わせ、圧着ロ
ールで押えた後、バーフカ・ツタ−で封口樹脂シート層
に窓枠状の切れ目を入れる。Lay the sealing resin sort on the current collector sheet, press it with a pressure roll, and then make a window frame-shaped cut in the sealing resin sheet layer with a barfka vine.
（第１図）
次に吸引機により発電要素を載置する部分の封口樹脂シ
ートを除去する。（第２図のａ及びｂ）これによって、
窓枠状の封口樹脂シートとなる。（第２図のＣ）
次に集電体シートの上に、厚み３０μｍの負極活物質の
リチウム金属箔を圧着した。さらに厚み２０μｍのエチ
レンオキシドとプロピレンオキシドのコポリマーからな
る高分子固体電解質層をコーティングにより形成した。(FIG. 1) Next, the sealing resin sheet in the area on which the power generation element is placed is removed using a suction machine. (a and b in Figure 2) With this,
It becomes a window frame-shaped sealing resin sheet. (C in FIG. 2) Next, a lithium metal foil of a negative electrode active material having a thickness of 30 μm was pressure-bonded onto the current collector sheet. Furthermore, a solid polymer electrolyte layer made of a copolymer of ethylene oxide and propylene oxide and having a thickness of 20 μm was formed by coating.
その上に二酸化マンガンとカーボン導電剤と固体電解質
を混合したペースト状の正極活物質層を厚み５０μｍに
塗布し、電子線を用いて硬化させて発電要素を形成した
。A paste-like positive electrode active material layer containing a mixture of manganese dioxide, a carbon conductive agent, and a solid electrolyte was applied thereon to a thickness of 50 μm, and was cured using an electron beam to form a power generation element.
正極集電体シートとして、アルミニウム、ステンレス、
チタン、銅等の材質からなる厚み１５μｍの金属箔を発
電要素に重ね合わせて一体とし、封口樹脂シート部を熱
加圧して封口した。Aluminum, stainless steel,
A metal foil with a thickness of 15 μm made of a material such as titanium or copper was overlaid on the power generation element to form an integral body, and the sealing resin sheet portion was sealed by heating and pressing.
これによってシート状リチウム電池を作製した。In this way, a sheet-like lithium battery was produced.
尚、集電体シートは電池の小形、軽量化の面より薄いこ
とが望ましく、通常は５０μｍ以下が適当である。しか
しあまり薄い場合には、機械的な強度が不足するから厚
み１０〜３０μｍが好ましい。Note that it is desirable that the current collector sheet be thin in order to make the battery smaller and lighter, and normally 50 μm or less is suitable. However, if it is too thin, the mechanical strength will be insufficient, so the thickness is preferably 10 to 30 μm.
発明の製造法によるシート状電池と従来法による（第４
図）シート状電池の封口樹脂シートの位置ずれ、シワに
よる不良率を比較した結果、本発明による場合は不良率
０．１％以下であるのに対し、従来法による場合は不良
率が３％であった。Sheet-shaped batteries manufactured by the manufacturing method of the invention and those manufactured by the conventional method (No. 4)
Figure) As a result of comparing the defective rate due to misalignment and wrinkles of the sealing resin sheet of a sheet battery, the defective rate is 0.1% or less in the case of the present invention, while the defective rate is 3% in the case of the conventional method. Met.
又、本発明の製造法では、封口樹脂シートの取扱いが容
易であり生産性が高い。Further, in the manufacturing method of the present invention, handling of the sealing resin sheet is easy and productivity is high.
発明の効果
上述した如く、本発明は生産性が高く、信転性に優れた
シート状電池を提供することが出来るので、工業的価値
は極めて大である。Effects of the Invention As described above, the present invention can provide a sheet battery with high productivity and excellent reliability, and therefore has extremely great industrial value.
第１図及び第２図、ａ、ｂ、ｃは本発明の一実施例を示
したシート状電池の製造法を示した概略図、第３図はシ
ート状電池の断面図、第４図は従来の製造法を示した概
略図である。
■・・・集電体シート ２・・・封口樹脂シート３・
・・圧着ロール ４・・・ハーフカッター５・・・
吸引機 ６・・・負極集電体７・・・負極
８・・・セパレータ９・・・正極 ｌ
Ｏ・・・正極集電体１１・・・封口樹脂Figures 1 and 2, a, b, and c are schematic diagrams showing a method of manufacturing a sheet battery according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the sheet battery, and Figure 4 is a 1 is a schematic diagram showing a conventional manufacturing method. ■...Current collector sheet 2...Sealing resin sheet 3.
...Crimping roll 4...Half cutter 5...
Suction device 6... Negative electrode current collector 7... Negative electrode
8...Separator 9...Positive electrode l
O... Positive electrode current collector 11... Sealing resin
Claims (2)
態で、封口樹脂シート層に切れ目を入れ、発電要素載置
部分の封口樹脂シートを除去することを特徴とするシー
ト状電池の製造法。(1) A method for producing a sheet-shaped battery characterized by making cuts in the sealing resin sheet layer with the current collector sheet and the sealing resin sheet stacked one on top of the other, and removing the sealing resin sheet in the area where the power generation element is placed. .
エチレン等の熱融着性樹脂である請求項１記載のシート
状電池の製造法。(2) The method for manufacturing a sheet battery according to claim 1, wherein the sealing resin sheet is a heat-fusible resin such as modified polypropylene or modified polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24041990A JPH0793130B2 (en) | 1990-09-10 | 1990-09-10 | Sheet battery manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24041990A JPH0793130B2 (en) | 1990-09-10 | 1990-09-10 | Sheet battery manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04121947A true JPH04121947A (en) | 1992-04-22 |
| JPH0793130B2 JPH0793130B2 (en) | 1995-10-09 |
Family
ID=17059197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24041990A Expired - Fee Related JPH0793130B2 (en) | 1990-09-10 | 1990-09-10 | Sheet battery manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793130B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017041310A (en) * | 2015-08-18 | 2017-02-23 | 三洋化成工業株式会社 | Manufacturing method of battery |
-
1990
- 1990-09-10 JP JP24041990A patent/JPH0793130B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017041310A (en) * | 2015-08-18 | 2017-02-23 | 三洋化成工業株式会社 | Manufacturing method of battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0793130B2 (en) | 1995-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
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| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
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| LAPS | Cancellation because of no payment of annual fees |