JPH035649B2 - - Google Patents
Info
- Publication number
- JPH035649B2 JPH035649B2 JP57113498A JP11349882A JPH035649B2 JP H035649 B2 JPH035649 B2 JP H035649B2 JP 57113498 A JP57113498 A JP 57113498A JP 11349882 A JP11349882 A JP 11349882A JP H035649 B2 JPH035649 B2 JP H035649B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- carbon
- fiber cloth
- carbonization yield
- double layer
- 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 - Lifetime
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 16
- 239000004917 carbon fiber Substances 0.000 claims description 16
- 238000003763 carbonization Methods 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- WGHUNMFFLAMBJD-UHFFFAOYSA-M tetraethylazanium;perchlorate Chemical compound [O-]Cl(=O)(=O)=O.CC[N+](CC)(CC)CC WGHUNMFFLAMBJD-UHFFFAOYSA-M 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
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
【発明の詳細な説明】
この発明は電気二重層キヤパシタに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric double layer capacitor.
電気二重層キヤパシタは分極性電極と電解質
（液）との界面で形成される電気二重層を利用し
て大静電容量を得るものである。この種の従来例
は、第１図のように円盤型（コイン型、ボタン
型）と称される構造で、黒鉛・活性炭・カーボン
ブラツク、および若干のバインダ等からなる材料
を成形したり、アルミニウムやステンレスのネツ
トに担持させた電極またはカーボン繊維とくに活
性炭化カーボン繊維布からなる炭素電極１の間に
電解液２を含浸させたセパレータ３を介在させ、
集電体と外装材を兼ねた金属ケース６・上ふた５
および絶縁と封口材を兼ねたパツキン４によつて
密閉されている。 An electric double layer capacitor obtains a large capacitance by utilizing an electric double layer formed at the interface between a polarizable electrode and an electrolyte (liquid). Conventional examples of this type have a structure called a disk shape (coin shape, button shape) as shown in Figure 1, and are made by molding materials made of graphite, activated carbon, carbon black, and some binder, etc. A separator 3 impregnated with an electrolyte 2 is interposed between an electrode 1 supported on a stainless steel net or a carbon electrode 1 made of carbon fiber, especially activated carbon fiber cloth,
Metal case 6 and top lid 5 that serve as a current collector and exterior material
And it is sealed by a packing 4 which serves both as insulation and as a sealing material.
ところで、この炭素電極としてカーボン繊維布
を使用する場合、一般にカーボン繊維の表面積と
電気抵抗・柔軟性とは反比例の関係にあるで、カ
ーボン繊維から活性炭繊維に賦活するにしたがつ
て表面積の増大がともない、炭化収率は低下し、
電気抵抗・柔軟性は悪るくなる。このため電気二
重層キヤパシタの分極性電極として用いるには、
原料繊維の種類によつて異なるが、炭化収率10％
程度の表面積の大なるものが望ましい。しかし、
柔軟性がなくなるため、電極加工時の機械的スト
レスに耐えられなくなるという欠点がある。逆に
炭化収率80％程度では、電気抵抗・柔軟性・強度
は優れているが表面積が小となり、静電容量が極
端に小さくなり、実用的ではなくなる。 By the way, when carbon fiber cloth is used as this carbon electrode, the surface area of carbon fiber and electrical resistance/flexibility are generally inversely proportional, so as carbon fiber is activated to activated carbon fiber, the surface area increases. As a result, the carbonization yield decreases,
Electrical resistance and flexibility deteriorate. Therefore, in order to use it as a polarizable electrode of an electric double layer capacitor,
Carbonization yield is 10%, although it varies depending on the type of raw fiber.
A material with a relatively large surface area is desirable. but,
It has the disadvantage that it cannot withstand mechanical stress during electrode processing because it loses flexibility. On the other hand, when the carbonization yield is around 80%, electrical resistance, flexibility, and strength are excellent, but the surface area becomes small and the capacitance becomes extremely small, making it impractical.
したがつて、この発明の目的は、電気抵抗・柔
軟性・強度および静電容量ともに優れた電気二重
層キヤパシタを提供することである。 Therefore, an object of the present invention is to provide an electric double layer capacitor that is excellent in electrical resistance, flexibility, strength, and capacitance.
この発明は、たとえば炭化収率10％程度のカー
ボン繊維布と炭化収率80％程度のカーボン繊維布
を２枚重ね合わせてすりつぶすように力を加えた
とすると、柔軟性および強度の弱い炭化収率10％
程度のカーボン繊維布は粉々となり、柔軟性およ
び強度の強い炭化収率80％程度のカーボン繊維布
の間隙に充填され、それぞれの特性が生かされる
ことを前提としている。すなわち、この発明は、
この炭化収率10％程度のカーボン繊維布の代わり
に、通常の粉状の活性炭、黒鉛、カーボンブラツ
ク等のカーボン材料を用いて、炭化収率80％程度
のカーボン繊維布に間隙に充填するものである。
これにより、製造容易になるうえ、電気抵抗・強
度および柔軟性はもちろん静電容量が従来より優
れたものとなる。その結果、静電容量を十分に確
保できしかも内部抵抗を大きく低下させることが
でき、製造時における機械的ストレスにも耐える
ことができるためその実用価値は大なるものがあ
る。 In this invention, for example, if two sheets of carbon fiber cloth with a carbonization yield of about 10% and a carbon fiber cloth with a carbonization yield of about 80% are stacked together and force is applied to grind them, the carbonization yield is weak in flexibility and strength. Ten%
The premise is that the carbon fiber cloth of approximately 80% will be broken into pieces and filled into the gaps between the carbon fiber cloth, which is flexible and strong and has a carbonization yield of approximately 80%, to take advantage of each of its characteristics. That is, this invention:
Instead of this carbon fiber cloth with a carbonization yield of about 10%, carbon materials such as ordinary powdered activated carbon, graphite, carbon black, etc. are used to fill the gaps in the carbon fiber cloth with a carbonization yield of about 80%. It is.
This not only makes manufacturing easier, but also provides superior electrical resistance, strength, flexibility, and capacitance compared to conventional products. As a result, it is possible to secure a sufficient capacitance, greatly reduce internal resistance, and withstand mechanical stress during manufacturing, which has great practical value.
つぎに実施例について述べる。まず製品の外径
寸法は22（直径）・厚み1.5mmである。また分極性
電極は17・厚み0.5mmである。 Next, examples will be described. First of all, the outer diameter of the product is 22 (diameter) and 1.5 mm thick. In addition, the polarizable electrode is 17 mm thick and 0.5 mm thick.
比較例 １
表面積1500m3／ｇの炭化収率10％程度のカーボ
ン繊維布を50μｍのセパレータを介して対向さ
せ、電解液（ｒ−ブチロラクトン100にテトラエ
チルアンモニウムパークロレート15を溶解したも
の）を含浸してステンレス（SUS304t＝0.25mm）
のケースと上ふたとポリプロピレンのパツキンを
使用したもの。実測の結果、静電容量は2.1F（フ
アラド）、内部抵抗は7.5Ωである。Comparative Example 1 Carbon fiber cloths with a surface area of 1500 m 3 /g and a carbonization yield of about 10% were placed facing each other with a 50 μm separator interposed therebetween, and impregnated with an electrolytic solution (15% tetraethylammonium perchlorate dissolved in 100% r-butyrolactone). Stainless steel (SUS304t=0.25mm)
The case and top lid are made of polypropylene. As a result of actual measurements, the capacitance is 2.1F (Farad) and the internal resistance is 7.5Ω.
比較例 ２
表面積15m3／ｇの炭化収率80％程度のカーボン
繊維布を使用し、他は比較例１の材料を使用した
もの。静電容量は0.02F、内部抵抗は1.3Ωであ
る。Comparative Example 2 A carbon fiber cloth with a surface area of 15 m 3 /g and a carbonization yield of about 80% was used, and the other materials used were those of Comparative Example 1. The capacitance is 0.02F and the internal resistance is 1.3Ω.
実施例 １
第２図のように電極８，９の材料として、表面
積15m2／ｇの高炭化収率のカーボン繊維布に1500
m2／ｇの粉末活性炭を充填し、他は比較例１の材
料を使用したもの。静電容量は1.8Fに改善され、
内部抵抗は1.5Ωでほとんど変化なかつた。Example 1 As shown in Fig. 2, the electrodes 8 and 9 were made of carbon fiber cloth with a surface area of 15 m 2 /g and a high carbonization yield.
m 2 /g of powdered activated carbon was filled, and the other materials used were those of Comparative Example 1. The capacitance has been improved to 1.8F,
The internal resistance was 1.5Ω and hardly changed.
実施例 ２
第３図のように電極８，９の材料として、表面
積15m2／ｇの高炭化収率のカーボン繊維布に1500
m2／ｇの炭素系材料１１すなわち粉末活性炭、黒
鉛、アセチレンブラツク100：５：10の割で電解
液で混練したものを充填し、他は比較例１の材料
を使用したもの。静電容量は1.8F、内部抵抗は
1.0Ωと一層の低下をみた。Example 2 As shown in Fig. 3, the electrodes 8 and 9 were made of carbon fiber cloth with a surface area of 15 m 2 /g and a high carbonization yield.
m 2 /g of carbon-based material 11, that is, powdered activated carbon, graphite, and acetylene black kneaded with electrolyte in a ratio of 100:5:10, and the other materials used were those of Comparative Example 1. Capacitance is 1.8F, internal resistance is
A further decrease was seen to 1.0Ω.
第１図は従来例の断面図、第２図はこの発明の
一実施例の断面図、第３図は他の実施例の断面図
である。
３……セパレータ、８，９……分極性電極。
FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of one embodiment of the present invention, and FIG. 3 is a sectional view of another embodiment. 3... Separator, 8, 9... Polarizable electrode.
Claims (1)
ータの両面に対接させて炭化収率の高いカーボン
繊維布の間隙に活性炭・黒鉛およびカーボンブラ
ツク等の粉末炭素系材料を充填してなる分極性電
極とを備えた電気二重層キヤパシタ。 ２ 前記粉末炭素系材料は予め電解液で混練して
前記カーボン繊維布に充填される特許請求の範囲
第１項記載の電気二重層キヤパシタ。[Claims] 1. A separator impregnated with an electrolytic solution, and a carbon fiber cloth having a high carbonization yield that is placed in contact with both sides of the separator and filling the gap with powdered carbon-based material such as activated carbon, graphite, and carbon black. An electric double layer capacitor equipped with a polarizable electrode. 2. The electric double layer capacitor according to claim 1, wherein the powdered carbon-based material is kneaded in advance with an electrolytic solution and filled into the carbon fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57113498A JPS593913A (en) | 1982-06-29 | 1982-06-29 | electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57113498A JPS593913A (en) | 1982-06-29 | 1982-06-29 | electric double layer capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS593913A JPS593913A (en) | 1984-01-10 |
| JPH035649B2 true JPH035649B2 (en) | 1991-01-28 |
Family
ID=14613836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57113498A Granted JPS593913A (en) | 1982-06-29 | 1982-06-29 | electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS593913A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737889A (en) * | 1984-07-17 | 1988-04-12 | Matsushita Electric Industrial Co., Ltd. | Polarizable electrode body and method for its making |
| JPS6184819A (en) * | 1984-10-02 | 1986-04-30 | 松下電器産業株式会社 | electric double layer capacitor |
| KR100698804B1 (en) * | 2003-04-23 | 2007-03-26 | 티디케이가부시기가이샤 | Manufacturing method of electrode for electrochemical capacitor, manufacturing method of electrochemical capacitor and porous particle with solvent used in these |
-
1982
- 1982-06-29 JP JP57113498A patent/JPS593913A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS593913A (en) | 1984-01-10 |
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