JP2734656B2 - Battery - Google Patents
BatteryInfo
- Publication number
- JP2734656B2 JP2734656B2 JP1174693A JP17469389A JP2734656B2 JP 2734656 B2 JP2734656 B2 JP 2734656B2 JP 1174693 A JP1174693 A JP 1174693A JP 17469389 A JP17469389 A JP 17469389A JP 2734656 B2 JP2734656 B2 JP 2734656B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- film
- thickness
- exterior
- metal thin
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229920006254 polymer film Polymers 0.000 claims description 9
- 239000010409 thin film Substances 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 5
- 238000007733 ion plating Methods 0.000 claims description 3
- 238000010884 ion-beam technique Methods 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000010408 film Substances 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000007740 vapor deposition Methods 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)
- Cell Electrode Carriers And Collectors (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、柔軟性を有するシート状の電池に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a sheet-shaped battery having flexibility.
従来技術とその問題点 従来、電池の厚みが0.5mm以下の薄型電池の外装兼集
電体として、厚みが20μｍ程度のステンレス、ニッケ
ル、銅等の金属箔を用いたが、電池としたときに、柔軟
性に欠ける問題があった。又、柔軟性を確保するため
に、ポリエステル、ポリプロピレン等のプラスチックフ
ィルムにアルミニウム、ニッケル、チタン等の金属を蒸
着したフィルムを用いることも提案されているが、金属
蒸着膜の厚みが、５μｍ以下になると、ピンホールが生
じやすい欠点があり、外装材として使用したとき電池の
長期保存ができない等の問題があった。Conventional technology and its problems Conventionally, a metal foil such as stainless steel, nickel, or copper having a thickness of about 20 μm was used as an exterior and current collector of a thin battery with a battery thickness of 0.5 mm or less. , There was a problem of lack of flexibility. In addition, in order to ensure flexibility, it has been proposed to use a film in which a metal such as aluminum, nickel, and titanium is vapor-deposited on a plastic film such as polyester and polypropylene, but the thickness of the metal vapor-deposited film is 5 μm or less. In such a case, there is a disadvantage that a pinhole is easily generated, and there is a problem that the battery cannot be stored for a long time when used as an exterior material.
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、薄くて柔軟性があり、且つ外装にピンホールがな
く、長期保存の出来る電池を提供することを目的とする
ものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object to provide a battery which is thin and flexible, has no pinholes on its exterior, and can be stored for a long time. .
発明の構成 本発明は上記目的を達成するべく、 金属薄膜を高分子フィルムの全面に形成した後、高分
子フィルムを内側にして折り曲げて集電体としたことを
特徴とする電池である。In order to achieve the above object, the present invention is a battery characterized in that a metal thin film is formed on the entire surface of a polymer film, and then the current collector is bent with the polymer film inside.
又、高分子フィルムの厚さが10μｍ以下である前記電
池である。Further, in the above battery, the thickness of the polymer film is 10 μm or less.
又、高分子フィルムを折り曲げた後、合せ面を接着し
てなる前記電池である。Further, the battery is formed by bonding a mating surface after bending a polymer film.
又、金属薄膜の形成が、蒸着法、スパッタリング法、
イオンプレーティング法、イオンビーム蒸着法による前
記電池である。In addition, the formation of the metal thin film, evaporation method, sputtering method,
The battery is an ion plating method or an ion beam evaporation method.
又、金属薄膜の厚さが、３μｍ以下である前記電池で
ある。Further, in the above battery, the thickness of the metal thin film is 3 μm or less.
実施例 以下、本発明を実施例により説明する。EXAMPLES Hereinafter, the present invention will be described with reference to examples.
実施例１ 第１図に示したような、本発明のシート状電池（電池
容量35mAh,電池厚み0.1mm）を製造した。すなわち、金
属リチウムからなる負極シート１、二酸化マンガンを主
成分とする合剤シート２、プロピレンカーボネートに過
塩素酸リチウムを溶解させた非水溶媒電解液を含浸した
ポリプロピレン不織布からなる電解質層３を積層した発
電セルを外装を兼ねる集電体４ではさみ、ポリプロピレ
ン樹脂５で封口した。第２図は、本発明の一実施例の外
装兼集電体の要部断面図である。すなわち、厚み３μｍ
のポリエステルフィルムの片面に、ニッケルを１μｍの
厚みに蒸着したものを、蒸着面が外側になるように折り
返し、外装兼集電体とした。このようにして、極めて柔
軟性に富んだシート状の電池が出来た。Example 1 A sheet-shaped battery (battery capacity 35 mAh, battery thickness 0.1 mm) of the present invention as shown in FIG. 1 was manufactured. That is, a negative electrode sheet 1 made of metallic lithium, a mixture sheet 2 containing manganese dioxide as a main component, and an electrolyte layer 3 made of a polypropylene nonwoven fabric impregnated with a nonaqueous solvent electrolyte obtained by dissolving lithium perchlorate in propylene carbonate are laminated. The generated power generation cell was sandwiched between current collectors 4 also serving as an exterior, and sealed with a polypropylene resin 5. FIG. 2 is a sectional view of a main part of an exterior and current collector according to one embodiment of the present invention. That is, a thickness of 3 μm
A film obtained by vapor-depositing nickel to a thickness of 1 μm on one surface of the polyester film was folded back so that the vapor-deposited surface was on the outside, thereby forming an exterior and current collector. In this way, an extremely flexible sheet-like battery was obtained.
実施例２ 厚み３μｍのポリエステルフィルムの両面にチタン
を、厚み１μｍ蒸着したフィルムを折り返したものを外
装兼集電体として、実施例１と同様にして厚み0.1mmの
シート状電池を製造した。この電池も極めて柔軟性に富
んだシート状の電池が得られた。Example 2 A sheet battery with a thickness of 0.1 mm was produced in the same manner as in Example 1 except that a film obtained by depositing titanium on both surfaces of a 3 μm-thick polyester film and folding back a 1 μm-thick film was used as an exterior and a current collector. This battery was also a very flexible sheet-like battery.
実施例３ 厚み２μｍのポリエステルフィルムの片面に、ニッケ
ルを１μｍの厚みに蒸着したものを蒸着面が外側になる
ように折り返し、蒸着面と反対側のポリエステル面どう
しを接着し一体化したものを外装兼集電体として、実施
例１と同様にして厚み0.1mmのシート状電池を製造し
た。この電池も又、極めて柔軟性に富んだシート状電池
であった。Example 3 One side of a polyester film having a thickness of 2 μm, nickel was vapor-deposited to a thickness of 1 μm, and the resulting film was folded so that the vapor-deposited surface was on the outside. A sheet-shaped battery having a thickness of 0.1 mm was manufactured in the same manner as in Example 1 as a current collector. This battery was also a very flexible sheet-like battery.
上記いずれの電池も外装にピンホールがなく、長期保
存の出来る電池であった。All of the above batteries had no pinholes on the exterior and were batteries that could be stored for a long period of time.
尚、電池に柔軟性をもたせるためには、高分子フィル
ムの厚さは10μｍ以下でなければならない。同様にして
形成する金属薄膜の厚さは３μｍ以下でなければ柔軟性
が得られない。又、折曲げたとき金属膜に亀裂が入る恐
れがある。蒸着する金属膜の種類は、ニッケル、チタ
ン、だけでなくアルミニウム、銅でもよい。さらに、金
属薄膜を形成する方法は、蒸着法だけでなく、スパッタ
リング法、イオンプレーティング法、イオンビーム蒸着
法等を用いてもよい。In order to make the battery flexible, the thickness of the polymer film must be 10 μm or less. If the thickness of the metal thin film formed in the same manner is not more than 3 μm, flexibility cannot be obtained. In addition, the metal film may be cracked when bent. The type of the metal film to be deposited may be not only nickel and titanium, but also aluminum and copper. Further, as a method of forming a metal thin film, a sputtering method, an ion plating method, an ion beam evaporation method, or the like may be used instead of the vapor deposition method.
発明の効果 上述した如く、本発明は薄くて柔軟性があり、且つ外
装にピンホールがなく、長期保存の出来る電池を提供す
ることが出来るので、その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 battery which is thin and flexible, has no pinholes in its exterior, and can be stored for a long period of time, and therefore has an extremely large industrial value.
第１図は、本発明の一実施例を示したシート状電池の縦
断面図である。第２図は、本発明の一実施例の外装兼集
電体の要部断面図である。 １……負極、２……正極 ３……電解質層、４……外装兼集電体 ５……封口体、６……プラスチックフィルム ７……金属薄膜、８……折り合わせ面FIG. 1 is a longitudinal sectional view of a sheet-shaped battery showing one embodiment of the present invention. FIG. 2 is a sectional view of a main part of an exterior and current collector according to one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Negative electrode 2 ... Positive electrode 3 ... Electrolyte layer 4 ... Exterior and current collector 5 ... Sealing body 6 ... Plastic film 7 ... Metal thin film 8 ... Folding surface
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭56−109462（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-56-109462 (JP, A)
Claims (5)
た後、高分子フィルムを内側にして折り曲げて集電体と
したことを特徴とする電池。1. A battery wherein a metal thin film is formed on the entire surface of a polymer film and then bent with the polymer film inward to form a current collector.
請求項１記載の電池。2. The battery according to claim 1, wherein the thickness of the polymer film is 10 μm or less.
を接着してなる請求項１記載の電池。3. The battery according to claim 1, wherein the mating surfaces are bonded after bending the polymer film.
グ法、イオンプレーティング法、イオンビーム蒸着法に
よる請求項１記載の電池。4. The battery according to claim 1, wherein the metal thin film is formed by an evaporation method, a sputtering method, an ion plating method, or an ion beam evaporation method.
項１記載の電池。5. The battery according to claim 1, wherein the thickness of the metal thin film is 3 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174693A JP2734656B2 (en) | 1989-07-06 | 1989-07-06 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1174693A JP2734656B2 (en) | 1989-07-06 | 1989-07-06 | Battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0340368A JPH0340368A (en) | 1991-02-21 |
| JP2734656B2 true JP2734656B2 (en) | 1998-04-02 |
Family
ID=15983027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1174693A Expired - Fee Related JP2734656B2 (en) | 1989-07-06 | 1989-07-06 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2734656B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021145345A1 (en) * | 2020-01-17 | 2021-07-22 | 富士フイルム株式会社 | Non-aqueous electrolyte secondary battery, current collector and method for producing same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004327167A (en) * | 2003-04-23 | 2004-11-18 | Sony Corp | Injection method of electrolyte, manufacturing method of wet system photoelectric conversion element, and manufacturing method of wet system device |
| JP2006172766A (en) * | 2004-12-13 | 2006-06-29 | Ngk Spark Plug Co Ltd | Thin battery and its manufacturing method |
| JP4927064B2 (en) * | 2008-11-11 | 2012-05-09 | シャープ株式会社 | Secondary battery |
| EP2738831B1 (en) * | 2012-11-29 | 2017-10-25 | The Swatch Group Research and Development Ltd. | Electrochemical cell |
-
1989
- 1989-07-06 JP JP1174693A patent/JP2734656B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021145345A1 (en) * | 2020-01-17 | 2021-07-22 | 富士フイルム株式会社 | Non-aqueous electrolyte secondary battery, current collector and method for producing same |
| JPWO2021145345A1 (en) * | 2020-01-17 | 2021-07-22 | ||
| JP7386265B2 (en) | 2020-01-17 | 2023-11-24 | 富士フイルム株式会社 | Nonaqueous electrolyte secondary battery, current collector, and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0340368A (en) | 1991-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |