JPS63190317A - Manufacture of polarizing electrode - Google Patents
Manufacture of polarizing electrodeInfo
- Publication number
- JPS63190317A JPS63190317A JP62022746A JP2274687A JPS63190317A JP S63190317 A JPS63190317 A JP S63190317A JP 62022746 A JP62022746 A JP 62022746A JP 2274687 A JP2274687 A JP 2274687A JP S63190317 A JPS63190317 A JP S63190317A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- paper
- colloidal
- polarizable electrode
- solution
- 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 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 43
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 230000005484 gravity Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 240000000907 Musa textilis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- 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、電気二重層キャパシタやエレクトロクロミッ
クディスプレイあるいは電池に用いる分極性電極の製造
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for producing polarizable electrodes for use in electric double layer capacitors, electrochromic displays, or batteries.
従来の技術
従来の技術を電気二重層キャパシタを例にとシ説明する
。ペーパ状の分極性電極としては特開昭５９−９３２’
＋６号公報に示されているものがある。このものは活性
炭繊維とバインダーとから構成されたペーパ状の分極性
電極に関したものである。また活性炭繊維布を分極性電
極に用いるものは比表面積が２０００ｍン′ｇ以上と大
きくでき、不純物も少なく電気二重層キャパシタに適し
ているが活性炭粉末と比較すると大変高価であり、加圧
しないと空隙率が９０％以上占めておシ空間部分のロス
が大きく繊維一本どうしの接触が少なく接触抵抗が大き
くなる。BACKGROUND ART The conventional technology will be explained using an electric double layer capacitor as an example. As a paper-like polarizable electrode, Japanese Patent Application Laid-Open No. 59-932'
There is one shown in Publication No. +6. This relates to a paper-like polarizable electrode composed of activated carbon fibers and a binder. In addition, those using activated carbon fiber cloth for polarizable electrodes can have a large specific surface area of 2000 m'g or more, have few impurities, and are suitable for electric double layer capacitors, but they are very expensive compared to activated carbon powder and require pressure to be applied. When the porosity is 90% or more, there is a large loss in the void space, and there is little contact between individual fibers, resulting in a large contact resistance.
発明が解決しようとする問題点
上記のような構成の分極性電極は、天然パルプ等のバイ
ンダーにより内部抵抗が大きく、急速充電することが困
難であり、また長期にわたる信頼性も十分でない。Problems to be Solved by the Invention Polarizable electrodes configured as described above have a high internal resistance due to the binder such as natural pulp, making it difficult to charge quickly and not having sufficient long-term reliability.
問題点を解決するだめの手段
本発明は上記問題点を解決するため、活性炭繊維を含む
シートをコロイダルカーボン溶液に浸漬後加圧しながら
ローラにより巻き上げ、乾燥する３ へ−７
コトにより、コロイダルカーボンをペーパ状の活性炭繊
維に担持した構成からなるものである。Means to Solve the Problems The present invention solves the above problems by dipping a sheet containing activated carbon fibers in a colloidal carbon solution, rolling it up with a roller while applying pressure, and drying the colloidal carbon. It consists of a structure supported on paper-like activated carbon fibers.
作用
上記の構成により、分極性電極の抵抗値を容易に低減し
、急速充電に適した信頼性の高い分極性電極を製造する
ことができる。Effect: With the above configuration, the resistance value of the polarizable electrode can be easily reduced and a highly reliable polarizable electrode suitable for rapid charging can be manufactured.
実施例 以下、本発明の詳細な説明する。Example The present invention will be explained in detail below.
（実施例１）
第１図に示した方法によりペーパ状活性炭繊維にコロイ
ダルカーボンを担持した。本実施例で用いたペーパ状活
性炭繊維組成およびコロイダルカーボン特性は以下のよ
うであった。ペーパ状活性炭繊維；活性炭繊維６０ ｗ
ｔ％（長さ０．５〜３順、直径１０〜１３μｍ）、炭素
繊維２５ ｗｔ％（長さ０．５〜３朋、直径７〜９μｍ
）、結合媒体１５ｗｔ％（マニラ麻とクラフトパルプの
混合物）および若干の分散剤（アクリルエマルジョン）
からなる。(Example 1) Colloidal carbon was supported on paper-like activated carbon fibers by the method shown in FIG. The paper-like activated carbon fiber composition and colloidal carbon properties used in this example were as follows. Paper-like activated carbon fiber; activated carbon fiber 60w
t% (length 0.5 to 3 mm, diameter 10 to 13 μm), carbon fiber 25 wt% (length 0.5 to 3 mm, diameter 7 to 9 μm)
), 15 wt% binding medium (mixture of Manila hemp and kraft pulp) and some dispersant (acrylic emulsion)
Consisting of
厚みは６００μｍ ９重量は１００ｇβである。The thickness is 600 μm and the weight is 100 gβ.
コロイダルカーボン；１μｍ以下の黒鉛１分散剤あるい
は安定剤としてのアンモニアからなる。たとえば日本ア
チソン社製の商品名「アクアダック」等である。濃度は
比重計により比重１．２とした。Colloidal carbon: Consists of graphite of 1 μm or less and ammonia as a dispersant or stabilizer. For example, the product name is "Aqua Duck" manufactured by Acheson Japan Co., Ltd. The concentration was set to a specific gravity of 1.2 using a hydrometer.
幅２０鋸に巻回されたペーパ状活性炭繊維１を比重１．
２のコロイダルカーボン溶液５（容器８内）に毎分１ｍ
の速度で浸漬しローラ３，４で加圧しながら巻き上げな
がらポンプ７で溶液５を一部くみ上げ６に示すように再
び活性炭繊維ペーパに塗布し担持を均一にした後ローラ
２，３で余分な溶液を除去し、さらに１２０°Ｃの熱風
乾燥機９で乾燥することにより、コロイダルカーボンを
担持した。担持量は、１２９／７７２′であった。
−このようにして製造した分極性電極の表面に２００μ
ｍ厚のアルミニウム金属層を溶射形成し、導電体層とす
る。これを直径６麿の円板状とし、第２図に示す構成の
コイン型電気二重層キャパシタを作成した。本実施例で
製造されたペーパ状分極性電極１０ 、１０’は、コロ
イダルカーボン担持前のシート抵抗値が２６．Ｑ／口あ
ったのに対し、５、Ｑ／口とＡ以下になっていた。１２
．１２’がアルミニウム層である。作成した二重層キャ
パシタの電解液にはテトラエチルアンモニウムのほう弗
化塩をプロピレンカーボネートに１モル溶解させたもの
を用い、セパレータ１１にはポリプロピレン製多孔膜を
用いた。１３は封口板、１４はケース、１５はガスケッ
トである。表にキャパシタの緒特性を示す。表中塵１は
本発明の実施例の特性を、高２はコロイダルカーボン担
持前のペーパ状活性炭繊維を用いたキャパシタ、すなわ
ち比較例の特性を示す。塵３は上記ペーパ状活性炭繊維
を単にコロイタ／Ｌｚ カー ホン溶液に浸漬し１２０
°Ｃの熱風て乾燥したものである。このものは浸漬によ
り膨潤し、初期厚みが６００μｍから７１０μｍとなり
密度の減少が見られた。さらに扁４は、上記ペーパ状活
性炭繊維をコロイダルカーボン溶液に浸漬し、一度ロー
ラに通し加圧したものであシ、本発明の実施例塵１に比
べ塗布量にムラがみられ不均一であった。この傾向は特
にコロイダルカーボン担持量が増大しだ時に顕著であっ
た。A paper-like activated carbon fiber 1 wound with a width of 20 mm has a specific gravity of 1.
2 colloidal carbon solution 5 (inside container 8) at 1 m/min.
The solution 5 is immersed at a speed of , and while being rolled up while applying pressure with rollers 3 and 4, a portion of the solution 5 is pumped up with pump 7. As shown in 6, the solution is again applied to the activated carbon fiber paper to make it evenly coated, and then the excess solution is removed with rollers 2 and 3. was removed and further dried in a hot air dryer 9 at 120°C to support colloidal carbon. The loading amount was 129/772'.
- 200 μm on the surface of the polarizable electrode thus produced
An aluminum metal layer with a thickness of m is thermally sprayed to serve as a conductor layer. This was made into a disk shape with a diameter of 6 mm, and a coin-type electric double layer capacitor having the configuration shown in FIG. 2 was fabricated. The paper-like polarizable electrodes 10 and 10' manufactured in this example had a sheet resistance value of 26.2% before supporting colloidal carbon. There was a Q/mouth, but it was 5, Q/mouth and below A. 12
．． 12' is an aluminum layer. The electrolytic solution of the produced double layer capacitor was prepared by dissolving 1 mole of tetraethylammonium borofluoride salt in propylene carbonate, and the separator 11 was a porous membrane made of polypropylene. 13 is a sealing plate, 14 is a case, and 15 is a gasket. The table shows the characteristics of the capacitor. In the table, 1 indicates the characteristics of the embodiment of the present invention, and 2 indicates the characteristics of a comparative example, which is a capacitor using paper-like activated carbon fibers before supporting colloidal carbon. Dust 3 was obtained by simply soaking the paper-like activated carbon fibers in a Coroita/Lz carbon solution.
Dry with hot air at °C. This material swelled by immersion, and its initial thickness changed from 600 μm to 710 μm, indicating a decrease in density. Furthermore, the flattened carbon fiber 4 was made by immersing the paper-like activated carbon fiber in a colloidal carbon solution and passing it through a roller and pressurizing it, and compared to the dust of Example 1 of the present invention, the coating amount was uneven and non-uniform. Ta. This tendency was particularly noticeable when the amount of colloidal carbon supported increased.
初期特性はキャパシタを２．８ｖで定電圧充電（５分間
）したのち１ｏ○μ人の定電流放電を行なうことにより
容量を求め、インピーダンスは１ＫＨｚで測定して求め
た。まだ信頼性はキャパシタを７０°Ｃ雰囲気下、常時
２．８ｖ印加した状態に１０００時間保存した後の初期
容量に対する容量の減少率で示した。また本発明はペー
パ状の活性炭繊維のみならず、フェルト状、織布状の活
性炭繊維にも同様に有効である。The initial characteristics were determined by charging the capacitor at a constant voltage of 2.8 V (5 minutes) and then discharging it at a constant current of 10.mu., to determine the capacitance, and the impedance was determined by measuring at 1 KHz. Reliability was indicated by the rate of decrease in capacitance relative to the initial capacitance after the capacitor was stored for 1000 hours in an atmosphere of 70° C. with 2.8 V constantly applied. Further, the present invention is effective not only for paper-like activated carbon fibers but also for felt-like and woven fabric-like activated carbon fibers.
（以下余白）
（実施例２）
実施例１と同様な製造法で分極性電極を製造したが、コ
ロイダルカーボンの濃度を変化させ担持量を制御した。(The following is a blank space) (Example 2) A polarizable electrode was manufactured by the same manufacturing method as in Example 1, but the concentration of colloidal carbon was changed to control the amount supported.
コロイダルカーボンの比重を１．０１ 。The specific gravity of colloidal carbon is 1.01.
１．０２．１．０５，１，１．１．２．１．５とするこ
とにより担持量がそれぞれ、１，３ｆ／ｙｐ？、 ２．
０１／ｎ？。1.02.1.05, 1, 1.1.2.1.5, the supported amount is 1.3 f/yp? , 2.
01/n? .
３．６ ｆ／ｒｎ’、 ８．７ ｆｌｙｄ 、 １１．
ａ Ｅｌ／ｎｒ： 、 ３０ ｇ／ｍ’となった。3.6 f/rn', 8.7 flyd, 11.
a El/nr: , 30 g/m'.
以上の分極性電極を用いて実施例１と同様な構成を有す
る二重層キャパシタを作成しそのインピーダンスを測定
したところ第３図のようになった。A double layer capacitor having a structure similar to that of Example 1 was prepared using the polarizable electrodes described above, and its impedance was measured, as shown in FIG. 3.
したがって担持量は、２．０ｇ８以上が効果的である。Therefore, it is effective to support the amount of 2.0 g8 or more.
（実施例３）
実施例１と乾燥方法のみが異なる製造法で分極性電極を
製造した。本実施例では被乾燥物の温度が１２０’Ｃに
なるような遠赤外線を用いて乾燥を行なった。実施例１
と比べ乾燥時間が１．５倍程度長くなったがより均一性
に優れた分極性電極を得ることができた。(Example 3) A polarizable electrode was manufactured using a manufacturing method that differed from Example 1 only in the drying method. In this example, drying was performed using far infrared rays such that the temperature of the material to be dried was 120'C. Example 1
Although the drying time was about 1.5 times longer than that of the previous method, a polarizable electrode with better uniformity could be obtained.
９・
実施例１〜３では本発明の製造法による分極性電極を電
気二重層キャパシタに応用した場合のみを示したが、本
発明は、電池やエレクトロミンクディスプレイ等にも広
く使用できる。9. In Examples 1 to 3, only the case where the polarizable electrode produced by the manufacturing method of the present invention was applied to an electric double layer capacitor was shown, but the present invention can also be widely used in batteries, electromink displays, etc.
発明の効果
以上のように本発明によれば容易に分極性電極の抵抗を
均一に低下させることができる。Effects of the Invention As described above, according to the present invention, the resistance of a polarizable electrode can be easily and uniformly lowered.
第１図は、本発明の一実施例の分極性電極の製造法を示
す模式図、第２図は、本発明の一応用例である電気二重
層キャパシタの構成を示す縦断面図、第３図は、コロイ
ダルカーボンの担持量と二重層キャパシタのインピーダ
ンスとの関係図である。
１・・・・・・ペーパ状活性炭繊維、２，３．４ ・
・・・ローラ、５，６・・・・コロイダルカーボン溶液
、７・・・・・・ポンプ、８・・・・・容器、９・・・
・・乾燥機。FIG. 1 is a schematic diagram showing a method of manufacturing a polarizable electrode according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view showing the structure of an electric double layer capacitor which is an application example of the present invention, and FIG. is a relationship diagram between the amount of colloidal carbon supported and the impedance of a double layer capacitor. 1...Paper-like activated carbon fiber, 2,3.4 ・
... Roller, 5, 6 ... Colloidal carbon solution, 7 ... Pump, 8 ... Container, 9 ...
··Dryer.
Claims (2)
液を付着後、加圧しながらローラにより巻き上げ、乾燥
させることにより、コロイダルカーボンをペーパ状の活
性炭繊維に担持したことを特徴とする分極性電極の製造
法。(1) A method for producing a polarizable electrode characterized in that colloidal carbon is supported on paper-like activated carbon fibers by applying a colloidal carbon solution to a sheet containing activated carbon fibers, then rolling it up with a roller while applying pressure, and drying it. .
液を付着後、加圧しながらローラにより巻き上げ、乾燥
することを特徴とする特許請求の範囲第１項記載の分極
性電極の製造法。(2) A method for manufacturing a polarizable electrode according to claim 1, characterized in that after applying a colloidal carbon solution to a sheet containing activated carbon fibers, the sheet is rolled up with a roller while being pressurized and dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62022746A JPS63190317A (en) | 1987-02-03 | 1987-02-03 | Manufacture of polarizing electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62022746A JPS63190317A (en) | 1987-02-03 | 1987-02-03 | Manufacture of polarizing electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190317A true JPS63190317A (en) | 1988-08-05 |
Family
ID=12091260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62022746A Pending JPS63190317A (en) | 1987-02-03 | 1987-02-03 | Manufacture of polarizing electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190317A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143800A (en) * | 1975-06-06 | 1976-12-10 | Hasetora Spinning | Soil resistant finish of carpet |
| JPS54131016A (en) * | 1978-03-31 | 1979-10-11 | Nippon Ion Kk | Impregnated cloth or paper |
| JPS5967617A (en) * | 1982-10-08 | 1984-04-17 | 松下電器産業株式会社 | Electric double layer capacitor |
-
1987
- 1987-02-03 JP JP62022746A patent/JPS63190317A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51143800A (en) * | 1975-06-06 | 1976-12-10 | Hasetora Spinning | Soil resistant finish of carpet |
| JPS54131016A (en) * | 1978-03-31 | 1979-10-11 | Nippon Ion Kk | Impregnated cloth or paper |
| JPS5967617A (en) * | 1982-10-08 | 1984-04-17 | 松下電器産業株式会社 | Electric double layer capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6070719A (en) | Solid electrolytic condenser | |
| CN112967889B (en) | Lignin-based high-area-ratio-capacitance super-capacitor material and preparation method and application thereof | |
| GB687569A (en) | Improvements in or relating to electrodes for electric batteries | |
| JPS63190317A (en) | Manufacture of polarizing electrode | |
| US4337501A (en) | Electrochemical capacitor | |
| US3260904A (en) | Electrical capacitor having an oxide dielectric and a cooperating dielectric material | |
| JPS59105312A (en) | Wet type electric double layer capacitor | |
| EP1923895A1 (en) | Polarizable electrode | |
| US2177819A (en) | Dry electrolytic condenser | |
| KR20150125847A (en) | Porous Graphene Film by Microwave and Manufacturing Method Thereof | |
| CN114059230A (en) | Preparation method and application of supramolecular carbon film based on electrostatic spinning | |
| JP3680883B2 (en) | Electric double layer capacitor and manufacturing method thereof | |
| JPH02177525A (en) | Electric double layer capacitor | |
| JPH02185008A (en) | Electric double layer capacitor | |
| JPS6145372B2 (en) | ||
| US2648119A (en) | Anode for electrolytic condensers | |
| JP3199101B2 (en) | Method for manufacturing tantalum solid electrolytic capacitor element | |
| JP2003239164A (en) | Polyacrylonitrile-based carbon fiber nonwoven fabric, carbon fiber nonwoven fabric roll and method for producing carbon fiber nonwoven fabric | |
| JP2000286167A (en) | Manufacture of electrode for battery and capacitor | |
| JPH1064765A (en) | Method of manufacturing electric double layer capacitor | |
| JPS593915A (en) | Electric double layer capacitor | |
| JPH06231744A (en) | Manganese dry battery | |
| JPH03254108A (en) | Sintered type barium titanate capacitor | |
| JP4026806B2 (en) | Electric double layer capacitor | |
| US2209770A (en) | Electrolytic condenser |