JPS60167411A - Method of producing electric double layer capacitor - Google Patents
Method of producing electric double layer capacitorInfo
- Publication number
- JPS60167411A JPS60167411A JP59023345A JP2334584A JPS60167411A JP S60167411 A JPS60167411 A JP S60167411A JP 59023345 A JP59023345 A JP 59023345A JP 2334584 A JP2334584 A JP 2334584A JP S60167411 A JPS60167411 A JP S60167411A
- Authority
- JP
- Japan
- Prior art keywords
- electric double
- double layer
- activated carbon
- layer capacitor
- polarizable electrode
- 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
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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は分極性電極表面上に導電性電極を形成するため
の電気二重層キャパシタの製造方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing an electric double layer capacitor for forming a conductive electrode on the surface of a polarizable electrode.
従来例の構成とその問題点
活性炭を分極性電極とする電気二重層キャパシタにおい
ては、第１図に示すように集電体１としてアルミニウム
やチタンのパンチングメタルを用い、集電体１の表面に
活性炭粉末を主成分とする分極性電極２を成形プレスす
るか、まだは圧延ロールにかけて担時させていた。図中
３はセパレータである。このような集電体２では、集電
体金属と活性炭との接触が単なる物理的なものであり、
接触抵抗も大きくまだ機械的強度も期待できない。Conventional Structure and Problems In an electric double layer capacitor using activated carbon as a polarizable electrode, a punched metal such as aluminum or titanium is used as the current collector 1, and the surface of the current collector 1 is The polarizable electrode 2, which mainly consists of activated carbon powder, has been molded and pressed or, at present, rolled on a rolling roll. 3 in the figure is a separator. In such a current collector 2, the contact between the current collector metal and the activated carbon is merely physical;
Contact resistance is high and mechanical strength cannot be expected yet.
一方、分極性電極２として、第２図に示すような活性炭
繊維を主成分とする布２紙、フェルト状のものを使用し
、この分極性電極２上に集電体１としてアルミニウム、
チタンなどの金属層を、（、）溶射法１価）蒸着法によ
り形成するものがある。第２図中、３はセパレータ、４
はケース、６Ｖｉガスヶ１．トである。On the other hand, as the polarizable electrode 2, a cloth 2 paper or felt-like material whose main component is activated carbon fiber as shown in FIG.
There is a method in which a metal layer such as titanium is formed by a thermal spraying method or a monovalent vapor deposition method. In Figure 2, 3 is a separator, 4
Case, 6Vi gas 1. It is.
活性炭繊維の片面にアルミニウムの金属等を溶射形成、
蒸着形成した場合、前述のキャパシタの場合より、活性
炭繊維と金属集電体との接着強度が強く、両者の接触抵
抗も低減できるという長所を持っている。しかしながら
、溶射法では、溶射装置が犬がかりであり、また高価な
設備となる。Spraying metal such as aluminum on one side of activated carbon fiber,
When formed by vapor deposition, it has the advantage that the adhesive strength between the activated carbon fiber and the metal current collector is stronger than in the case of the above-mentioned capacitor, and the contact resistance between the two can be reduced. However, in the thermal spraying method, the thermal spraying equipment is complicated and expensive equipment.
また、蒸着法では、バッチ式でないと生産を行なうこと
ができず、大量生産に向かないという大きな欠点を有し
ている。Further, the vapor deposition method has a major drawback in that it cannot be produced unless it is a batch method, and is not suitable for mass production.
一方、分極性電極に、金属粒子あるいはカーボン粒子を
導電性粒子とした導電性ペイント層をディップ法塗布法
、スクリーン印刷法等で形成し、集電体とするものもあ
る。On the other hand, there is also one in which a conductive paint layer containing metal particles or carbon particles as conductive particles is formed on a polarizable electrode by a dip coating method, a screen printing method, or the like to serve as a current collector.
このような方法は、非常に手がるに、しかも設備を必要
とせず容易に集電体を形成しうるものである。しかしな
がら、導電性ペイントは一般に広く知られているように
、金属と比較して比抵抗が大きく、急速充電ができない
ばかりでなく、強放電を行なった場合、放電過電圧によ
るＩＲ１口。Such a method is very simple and allows the current collector to be easily formed without requiring any equipment. However, as is generally known, conductive paints have a higher specific resistance than metals, and not only do they not allow rapid charging, but also cause IR damage due to discharge overvoltage when a strong discharge is performed.
プが大きくなるという欠点を有している。The disadvantage is that the drop becomes large.
発明の目的
本発明は電気二重層キャパシタの集電体の集電能を改善
することを目的とするものである。Object of the Invention The object of the present invention is to improve the current collecting ability of a current collector of an electric double layer capacitor.
発明の構成
この目的を達成するために本発明は、分極性電極表面上
に導電性電極を電気メツキ法により形成することを特徴
とするものである。Structure of the Invention In order to achieve this object, the present invention is characterized in that a conductive electrode is formed on the surface of a polarizable electrode by electroplating.
実施例の説明
まず、メッキされる炭素あるいは活性炭繊維の脱脂を行
なう必要がある。脱離は、苛性アルカリなどですばやく
リンスすれば十分である。まだ、炭素材料において、黒
鉛、アモルファス炭素、活性炭の順に、電気伝導度が低
下するため、電気メ、キがしにくくなるが、本発明にお
ける分極性電極の集電という役割は十分果すものである
。DESCRIPTION OF THE EMBODIMENTS First, it is necessary to degrease the carbon or activated carbon fibers to be plated. A quick rinse with caustic alkali or the like is sufficient for removal. Among carbon materials, the electrical conductivity decreases in the order of graphite, amorphous carbon, and activated carbon, making it difficult to conduct electrical grids, but the polarizable electrodes of the present invention sufficiently fulfill the role of current collection. .
また、一般に電気メッキは、メッキ槽にメッキ液を入れ
、２枚の陽極板の中央に被メッキ物を浸種する。この場
合、陰極電流密度ＤＫの計算には、液の浸漬している面
積をとる。このような方法によれば、被メッキ物の全面
に均一なメッキを施すことが可能となる。しかし、本発
明のように、分極性電極の片端面にだけ、集電体として
のメッキ金属層が存在すれば良い場合には、陽極を１個
に５．７゛
した方が好ましい。理想的な分極性電極を得るためにも
メッキ層は、片端面のみに存在する方が良いことになる
。Furthermore, in general, in electroplating, a plating solution is placed in a plating bath, and the object to be plated is immersed in the center of two anode plates. In this case, the area immersed in the liquid is used to calculate the cathode current density DK. According to such a method, it becomes possible to uniformly plate the entire surface of the object to be plated. However, as in the present invention, when it is sufficient that a plated metal layer as a current collector exists only on one end surface of the polarizable electrode, it is preferable that each anode has a diameter of 5.7°. In order to obtain an ideal polarizable electrode, it is better for the plating layer to exist only on one end surface.
また、前記後者２つの集電法では、分極性電極表面から
の集電となり、分極性電極の内部からの集電は期待でき
ず、十分な集電能を発揮しているとは考えられない。In addition, in the latter two current collection methods, current is collected from the surface of the polarizable electrode, and current collection from inside the polarizable electrode cannot be expected, and it is not considered that sufficient current collection ability is exhibited.
（実施例 １）
比表面積２０ｏｏｍ’／ｌ を有する活性炭繊維を陰極
に、陽極にはニッケル板を使用し、第１表に示す組成の
メッキ浴を使用し、電気工、ノケルメ、：７キを活性炭
繊維に行った。陽極６は、第３図ａ、ｂに示すように、
１枚、あるいは２枚用いた。了は陰極である。このよう
にして分極性電極上に集電極を形成し、第２図に示した
コイン型キャノくシタを試作した。電極面積は、およそ
１ｅｓｏ、ｊであった。(Example 1) An activated carbon fiber having a specific surface area of 20 oom'/l was used as the cathode, a nickel plate was used as the anode, and a plating bath having the composition shown in Table 1 was used. I went for activated carbon fiber. As shown in FIGS. 3a and 3b, the anode 6 is
One or two sheets were used. The end is the cathode. In this way, a collector electrode was formed on the polarizable electrode, and a coin-shaped canopy shown in FIG. 2 was prototyped. The electrode area was approximately 1eso,j.
また第３図ａ、ｂで形成したメッキ層は、第４図ａ、ｂ
のように異なるものであるが、キャンくシタ特性として
は、第４図すに示すものの方がわずかに充電に要する時
間が短かかった。第４図中、８はメッキ層、９は活性炭
繊維である。Furthermore, the plating layers formed in Fig. 3 a, b are as shown in Fig. 4 a, b.
However, in terms of charging characteristics, the time required for charging was slightly shorter for the battery shown in Figure 4. In FIG. 4, 8 is a plating layer and 9 is an activated carbon fiber.
二・シケルと同様、カドミウム（第２表のメッキ浴使用
）、クロム（第３表のメッキ浴使用）、コバルト、（第
４表のメッキ浴使用）、鉛（第６表のメッキ浴使用）、
銅（第６表のメッキ浴）で電気メッキを行ない、ニッケ
ルの場合と同様なキャパシタを試作した。第７表にこれ
らの結果を示す。Similar to Ni-Shekel, cadmium (using the plating bath in Table 2), chromium (using the plating bath in Table 3), cobalt (using the plating bath in Table 4), lead (using the plating bath in Table 6) ,
Electroplating was performed with copper (plating bath shown in Table 6), and a prototype capacitor similar to that of nickel was fabricated. Table 7 shows these results.
電解液は、第７表中に示した有機電解液を用いた。The organic electrolyte shown in Table 7 was used as the electrolyte.
いずれのものにおいても良好な特性を有する電気二重層
キャパシタが得られる。In either case, an electric double layer capacitor having good characteristics can be obtained.
第１表 第２表
７ く ；゛
第３表 第４表
第５表 第６表
特開昭ＧＯ−ＩＧ７４１１（３）
９ ・ビ゛
（実施例 ２）
比例面積２０００ｍ’／ｇ、多孔度６％の活性炭多孔体
に二・ソケルメッキを施して集電体を形成し、１５０
Ｘ １００ ｍＡ の第５図ａ、ｂに示したキャパシタ
を試作した。図中１０は活性炭多孔体、１１はニッケル
層、１２はセパレータであり、電解液ニは、１０ｗｔ％
の水酸化カリウムを使用した。Table 1 Table 2 Table 7 Table 3 Table 4 Table 5 Table 6 JP-A-Sho GO-IG7411 (3) 9 ・B (Example 2) Proportional area 2000 m'/g, porosity 6 % activated carbon porous body was subjected to Ni-Sokel plating to form a current collector.
A prototype capacitor of X 100 mA as shown in FIGS. 5a and 5b was fabricated. In the figure, 10 is an activated carbon porous body, 11 is a nickel layer, 12 is a separator, and the electrolyte (2) is 10wt%.
of potassium hydroxide was used.
１３はニッケルのリード線、１４は熱融着性樹脂である
。同図すは第５図ａをＡ −Ａ’で切断した時の断面図
である。第８表にこのキャパシタ特性を示す。第８表よ
り大容量かつ低インピーダンスのキャパシタであること
がわかる。13 is a nickel lead wire, and 14 is a heat-fusible resin. This figure is a sectional view taken along line A-A' of FIG. 5a. Table 8 shows the characteristics of this capacitor. It can be seen from Table 8 that the capacitor has a large capacity and low impedance.
第８表
（実施例 ３）
分極性電極に２０００ｍ”７ｇ の活性炭繊維を用い、
１０ 、
集電極としてこの表面に鉛の電気メッキを行ない、この
ものをカソード極に、さらにアノード極には金属リチウ
ムを用いキャパシタを作製した。第６図にその構成を示
す。図中９は活性炭繊維直径１４龍、１５はセパレータ
、１６はリチウム、５はガスケット、４はケースである
。電解液には、リチウムを含む過塩素酸リチウムをポリ
プロピレン溶媒に溶解した溶液を用いた。このキャパシ
タの特性を第９表に示す。この第９表より、キャパシタ
は、小型大容量を示すことがわかる。Table 8 (Example 3) Using 2000m”7g of activated carbon fiber as a polarizable electrode,
10. Lead was electroplated on the surface as a collector electrode, and a capacitor was fabricated using this as a cathode and metal lithium as an anode. Figure 6 shows its configuration. In the figure, 9 is an activated carbon fiber with a diameter of 14 mm, 15 is a separator, 16 is lithium, 5 is a gasket, and 4 is a case. As the electrolytic solution, a solution in which lithium perchlorate containing lithium was dissolved in a polypropylene solvent was used. Table 9 shows the characteristics of this capacitor. From Table 9, it can be seen that the capacitor is small and exhibits large capacity.
第９表
発明の効果
以上のように本発明は、集電体としての導電性電極を電
気メツキ法を用いて形成するため、分極性電極と集電体
との接着が強固で接触抵抗が小さく、かつ製造容易な小
型大容量の電気二重層キャ１１１く一ン
パシタを得ることができる。Table 9 Effects of the Invention As described above, in the present invention, since the conductive electrode as the current collector is formed using the electroplating method, the adhesion between the polarizable electrode and the current collector is strong and the contact resistance is low. In addition, it is possible to obtain a compact and large-capacity electric double layer capacitor 111 that is easy to manufacture.
第１図は従来の電気二重層キャパシタの要部を示す斜視
図、第２図は、別の従来のコイン型キャパシタの構成を
示す半断面正面図、第３図ａ、ｂはメッキ時の電極構成
を示す説明図、第４図ａ。
ｂは分極性電極上に形成したメッキ層を示す断面図、第
６図ａ、ｂは本発明の一実施例による電気二重層キャパ
シタを示す平面図および断面図、第６図は非分極性電極
を用いた本発明の他の実施例における電気二重層キャパ
シタを示す断面図である。
１・・・・・集電体、２・・・・分極性電極、６・・・
・・陽極、７・・・・・陰極、８・・・・・メッキ層、
９・・・・・活性炭繊維、１ｏ・・・・・活性炭多孔体
、１１・・・・ニッケル層。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名特開
昭ＧＯ−１６７４１１（４）
第１図
＠２図
第３図
第４図
第５図Fig. 1 is a perspective view showing the main parts of a conventional electric double layer capacitor, Fig. 2 is a half-sectional front view showing the configuration of another conventional coin-shaped capacitor, and Fig. 3 a and b are electrodes during plating. Explanatory diagram showing the configuration, FIG. 4a. 6b is a sectional view showing a plating layer formed on a polarizable electrode; FIGS. 6a and 6b are a plan view and a sectional view showing an electric double layer capacitor according to an embodiment of the present invention; FIG. FIG. 3 is a sectional view showing an electric double layer capacitor in another embodiment of the present invention using the electric double layer capacitor according to another embodiment of the present invention. 1... Current collector, 2... Polarizable electrode, 6...
... Anode, 7 ... Cathode, 8 ... Plating layer,
9...Activated carbon fiber, 1o...Activated carbon porous body, 11...Nickel layer. Name of agent: Patent attorney Toshio Nakao and one other person JP-A-167411 (4) Figure 1 @ Figure 2 Figure 3 Figure 4 Figure 5
Claims (3)
により形成することを特徴とする電気二重層キャパシタ
の製造方法。(1) A method for manufacturing an electric double layer capacitor, which comprises forming a conductive electrode on the surface of a polarizable electrode by electroplating.
ル、クロム、銅、コバルト、鉛のうちのいずれかである
ことを特徴とする特許請求の範囲第１項記載の電気二重
層キャパシタの製造方法。(2) The method for manufacturing an electric double layer capacitor according to claim 1, wherein the metal electroplated as the conductive electrode is any one of nickel, chromium, copper, cobalt, and lead. .
不織布状または板状多孔質の活性炭であることを特徴と
する特許請求の範囲第１項記載の電気二重層キャパシタ
の製造方法。(3) The polarizable electrode is activated carbon fiber cloth 2 paper-like, felt-like,
2. The method for manufacturing an electric double layer capacitor according to claim 1, wherein the activated carbon is nonwoven fabric-like or plate-like porous activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59023345A JPS60167411A (en) | 1984-02-10 | 1984-02-10 | Method of producing electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59023345A JPS60167411A (en) | 1984-02-10 | 1984-02-10 | Method of producing electric double layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60167411A true JPS60167411A (en) | 1985-08-30 |
Family
ID=12107997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59023345A Pending JPS60167411A (en) | 1984-02-10 | 1984-02-10 | Method of producing electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60167411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0574659A (en) * | 1991-09-13 | 1993-03-26 | Nec Corp | Polarizable electrode, electric double layer capacitor and manufacture thereof |
| JP2015531542A (en) * | 2012-09-06 | 2015-11-02 | オプシストバ・ス・オルガニチノイ・アトベツトベンノスチュ（タバーリシストバ・エネルギチーチェスキフ・イ・エレクトロモビーリニフ・プロエクトフ）Ｏｂｓｃｈｅｓｔｖｏ Ｓｏｇｒａｎｉｃｈｅｎｎｏｙ Ｏｔｖｅｔｓｔｖｅｎｎｏｓｔｙｕ ‘Ｔｏｖａｒｉｓｃｈｅｓｔｖｏ Ｅｎｅｒｇｅｔｉｃｈｅｓｋｉｋｈ Ｉ Ｅｌｅｋｔｒｏｍｏｂｉｌｎｉｋｈ Ｐｒｏｅｋｔｏｖ’ | High power electric double layer capacitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5668166A (en) * | 1979-11-07 | 1981-06-08 | Nippon Mining Co | Production of gold coated staple carbon fiber |
| JPS594114A (en) * | 1982-06-30 | 1984-01-10 | 松下電器産業株式会社 | Electric double layer capacitor |
-
1984
- 1984-02-10 JP JP59023345A patent/JPS60167411A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5668166A (en) * | 1979-11-07 | 1981-06-08 | Nippon Mining Co | Production of gold coated staple carbon fiber |
| JPS594114A (en) * | 1982-06-30 | 1984-01-10 | 松下電器産業株式会社 | Electric double layer capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0574659A (en) * | 1991-09-13 | 1993-03-26 | Nec Corp | Polarizable electrode, electric double layer capacitor and manufacture thereof |
| JP2015531542A (en) * | 2012-09-06 | 2015-11-02 | オプシストバ・ス・オルガニチノイ・アトベツトベンノスチュ（タバーリシストバ・エネルギチーチェスキフ・イ・エレクトロモビーリニフ・プロエクトフ）Ｏｂｓｃｈｅｓｔｖｏ Ｓｏｇｒａｎｉｃｈｅｎｎｏｙ Ｏｔｖｅｔｓｔｖｅｎｎｏｓｔｙｕ ‘Ｔｏｖａｒｉｓｃｈｅｓｔｖｏ Ｅｎｅｒｇｅｔｉｃｈｅｓｋｉｋｈ Ｉ Ｅｌｅｋｔｒｏｍｏｂｉｌｎｉｋｈ Ｐｒｏｅｋｔｏｖ’ | High power electric double layer capacitor |
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