JPH0793130B2 - Sheet battery manufacturing method - Google Patents
Sheet battery manufacturing methodInfo
- Publication number
- JPH0793130B2 JPH0793130B2 JP24041990A JP24041990A JPH0793130B2 JP H0793130 B2 JPH0793130 B2 JP H0793130B2 JP 24041990 A JP24041990 A JP 24041990A JP 24041990 A JP24041990 A JP 24041990A JP H0793130 B2 JPH0793130 B2 JP H0793130B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sealing resin
- current collector
- resin sheet
- battery
- 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 - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 23
- -1 polypropylene Polymers 0.000 claims description 6
- 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
- 238000000034 method Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 239000011888 foil Substances 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
- 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
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000007784 solid electrolyte 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 229920001577 copolymer Polymers 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
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
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。TECHNICAL FIELD 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。即ち、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、一体化し
たものである。Conventional Technology and its Problems Conventionally, this type of sheet battery has a structure as shown in FIG. That is, the negative electrode active material layer, the separator, and the positive electrode active material layer are stacked on top and bottom of the power generation element, the negative electrode current collector and the positive electrode current collector are arranged, and the sealing resin is heat-pressed and sealed to be integrated. It is a thing.
封口樹脂シートは予め発電要素を載置する部分を打ち抜
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。As the sealing resin sheet, a window frame-shaped sheet in which a portion for mounting a power generating element is punched out is prepared in advance, and the sheet is laminated with a current collector sheet by the method as shown in FIG.
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 a conventional manufacturing method, since the window-frame-shaped sealing resin sheet is easily deformed, it is difficult to perform positioning when superposed on the current collector sheet, and wrinkles occur, which causes a high defect rate in the manufacturing process, There was a problem of low sex.
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、
生産性が高く、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。OBJECT OF THE INVENTION The present invention has been made in view of the above conventional problems,
It is an object of the present invention to provide a sheet-shaped battery having 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。In order to achieve the above-mentioned object, the present invention is a state in which a current collector sheet and a sealing resin sheet are stacked,
A method for manufacturing a sheet-shaped battery, characterized in that a cut is made in a sealing resin sheet layer, and the sealing resin sheet on a portion where a power generation element is mounted is removed.
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。It is to be noted that the above method for producing a sheet-shaped battery is one in which 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, details of the present invention will be described by way of an 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 views showing a method of manufacturing a sheet-shaped battery showing an embodiment of the present invention, FIG. 3 is a sectional view of the sheet-shaped battery, and FIG. 4 is a conventional manufacturing method. It is the schematic which showed the method.
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 bonding 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 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 of stainless steel, iron, nickel, copper or the like with a thickness of 15 μm, and the sealing resin sheet is modified polypropylene or modified polyethylene.
集電体シート上に封口樹脂シートを重ね合わせ、圧着ロ
ールで押えた後、ハーフカッターで封口樹脂シート層に
窓枠状の切れ目を入れる。（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。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。The sealing resin sheet is superposed on the current collector sheet, and after pressing with a pressure bonding roll, a window frame-shaped cut is made in the sealing resin sheet layer with a half cutter. (FIG. 1) Next, the sealing resin sheet on the portion on which the power generating element is placed is removed by a suction device. (A and b in FIG. 2)
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. Further, a polymer solid electrolyte layer having a thickness of 20 μm and made of a copolymer of ethylene oxide and propylene oxide was formed by coating. A paste-like positive electrode active material layer in which manganese dioxide, a carbon conductive agent, and a solid electrolyte were mixed was applied thereon to a thickness of 50 μm, and cured with an electron beam to form a power generating 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。これによってシート状リチウム電池を
作製した。As the positive electrode current collector sheet, aluminum, stainless steel,
A metal foil having a thickness of 15 μm and made of a material such as titanium or copper was overlaid on the power generating element to be integrated, and the sealing resin sheet portion was heat-pressed and sealed. This produced the sheet-like lithium battery.
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。It is desirable that the current collector sheet is thinner in view of making the battery smaller and lighter, and usually 50 μm or less is appropriate. However, if it is too thin, the mechanical strength will be insufficient, so the thickness
10 to 30 μm is preferable.
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。The sheet-like battery according to the manufacturing method of the invention and the conventional method (4th
Figure) As a result of comparing the position error of the sealing resin sheet of the sheet-shaped battery and the defective rate due to wrinkles, the defective rate in the case of the present invention
While it was 0.1% or less, the defective rate was 3% in the case of the conventional method.
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 production method of the present invention, the sealing resin sheet is easy to handle and the productivity is high.
発明の効果 上述した如く、本発明は生産性が高く、信頼性に優れた
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-shaped battery having high productivity and excellent reliability, and therefore has an 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。 １……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、10……正極集電体 11……封口樹脂FIGS. 1 and 2, a, b, and c are schematic views showing a method for manufacturing a sheet-like battery showing an embodiment of the present invention, FIG. 3 is a sectional view of the sheet-like battery, and FIG. It is the schematic which showed the conventional manufacturing method. 1 ... Current collector sheet, 2 ... Sealing resin sheet, 3 ... Crimping roll, 4 ... Half cutter, 5 ... Suction machine, 6 ... Negative electrode current collector, 7 ... Negative electrode, 8 ... Separator, 9 ... Positive electrode, 10 …… Positive electrode collector 11 …… Sealing resin
Claims (2)
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。1. A sheet-shaped battery, characterized in that, in a state where a current collector sheet and a sealing resin sheet are overlapped with each other, a cut is made in a sealing resin sheet layer to remove the sealing resin sheet at a portion where a power generating element is placed. Manufacturing method.
性ポリ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 producing 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 JPH04121947A (en) | 1992-04-22 |
| JPH0793130B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6633866B2 (en) * | 2015-08-18 | 2020-01-22 | 三洋化成工業株式会社 | Battery manufacturing method |
-
1990
- 1990-09-10 JP JP24041990A patent/JPH0793130B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04121947A (en) | 1992-04-22 |
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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 |
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| R350 | Written notification of registration of transfer |
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| LAPS | Cancellation because of no payment of annual fees |