JPH01196807A - Carbon paste electrode - Google Patents
Carbon paste electrodeInfo
- Publication number
- JPH01196807A JPH01196807A JP63023161A JP2316188A JPH01196807A JP H01196807 A JPH01196807 A JP H01196807A JP 63023161 A JP63023161 A JP 63023161A JP 2316188 A JP2316188 A JP 2316188A JP H01196807 A JPH01196807 A JP H01196807A
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- carbon
- carbon paste
- p4vp
- 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000005011 phenolic resin Substances 0.000 claims abstract description 8
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 7
- KFDVPJUYSDEJTH-UHFFFAOYSA-N 4-ethenylpyridine Chemical compound C=CC1=CC=NC=C1 KFDVPJUYSDEJTH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- 238000012856 packing Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229920003228 poly(4-vinyl pyridine) Polymers 0.000 description 25
- 230000007423 decrease Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004094 surface-active agent 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
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カーボンペースト電極に係わり、とくに電気
二重層コンデンサ用のカーボンペースト電極に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a carbon paste electrode, and particularly to a carbon paste electrode for an electric double layer capacitor.
カーボンペースト電極を用いた電気二重層コンデンサは
、例えば次の構成からなる。すなわち、リング状の非導
電性ガスケットとその片面を完全に封止するイオン不透
過の導電性セパレータで形成されるガスケット内の凹部
に充填される粉末活性炭と電解質溶液からなるカーボン
ペースト電極との一対が、絶縁性でイオン透過性を有す
る多孔性セパレータを介して合体され、カーボンペース
ト電極対が非導電性ガスケットおよび導電性セパレータ
により保持され、外界から遮断され、かつ多孔性セパレ
ータにより電気的に絶縁される構造からなる。An electric double layer capacitor using carbon paste electrodes has, for example, the following configuration. That is, a pair of carbon paste electrodes made of powdered activated carbon and an electrolyte solution filled in the recesses in the gasket formed by a ring-shaped non-conductive gasket and an ion-impermeable conductive separator that completely seals one side of the gasket. are combined via an insulating and ion-permeable porous separator, and the carbon paste electrode pair is held by a non-conductive gasket and a conductive separator, shielded from the outside world, and electrically insulated by the porous separator. It consists of a structure that is
この種の電気二重層コンデンサ（以後基本セルと称す）
の電極となるカーボンペースト電極としては、従来、電
解質に硫酸が使われている。また、粉末活性炭としては
、主に素灰系活性炭が使われている。このカーボンペー
スト電極においては、ペースト内の活性炭粉末と硫酸と
の分離の抑制、および自己放電特性の安定化を目的とし
て、硫酸にポリ−４−ビニルピリジン（以下、Ｐ４ＶＰ
と称す）を溶解させ、界面活性剤およびバインダーとし
ての機能を持たせていた。This type of electric double layer capacitor (hereinafter referred to as basic cell)
Conventionally, sulfuric acid has been used as an electrolyte for carbon paste electrodes. Furthermore, as powdered activated carbon, ash-based activated carbon is mainly used. In this carbon paste electrode, poly-4-vinylpyridine (hereinafter referred to as P4VP) is added to sulfuric acid for the purpose of suppressing separation of activated carbon powder and sulfuric acid in the paste and stabilizing self-discharge characteristics.
) was dissolved therein to function as a surfactant and a binder.
一方、カーボンペーストは、基本セル内に、ドクターナ
イフ工法により充填される。よって、当工法に適した流
動性と粘度を保持しなければならない。特に粘度が高く
なり、かつ流動性がなくなると、基本セル内へ充填され
るカーボンペースト重量が減少し、基本セル内に占める
、カーボンペーストの体積使用効率ＶＰ〔％〕が低下す
る。そのために、カーボンペースト中の硫酸と粉末活性
炭の混合重量比は、ある適度な範囲に限定される。On the other hand, the carbon paste is filled into the basic cells using the doctor knife method. Therefore, it is necessary to maintain fluidity and viscosity suitable for this construction method. In particular, when the viscosity increases and the fluidity disappears, the weight of the carbon paste filled into the basic cells decreases, and the volumetric usage efficiency VP [%] of the carbon paste that occupies the basic cells decreases. Therefore, the mixing weight ratio of sulfuric acid and powdered activated carbon in the carbon paste is limited to a certain appropriate range.
さらに、硫酸と粉末活性炭の混合重量比により、カーボ
ンペースト中の粉末活性炭の充填密度ρ。Furthermore, the packing density ρ of powdered activated carbon in the carbon paste is determined by the mixing weight ratio of sulfuric acid and powdered activated carbon.
［ｇ／ｃ＋＋？、：］が定まる。電気二重層コンデンサ
の静電容量は、上述のρ。とｖＰに依存し、実際の粉末
まる。[g/c++? , :] is determined. The capacitance of an electric double layer capacitor is ρ as described above. And depends on vP, actual powder round.
〔発明が解決しようとする問題７ｄ〕
従来の素灰系粉末活性炭に比し、フェノール樹脂系粉末
活性炭と、Ｐ４ＶＰを溶解した硫酸とでカーボンペース
トを調製すると、Ｐ４ＶＰの溶解濃度がカーボンペース
トの流動性、粘度、および硫酸対粉末活性炭の混合重量
比により大きな影響を与えることが確認された。よって
、前述のρ。[Problem 7d to be solved by the invention] Compared to the conventional powder activated carbon based on raw ash, when carbon paste is prepared using phenolic resin powder activated carbon and sulfuric acid in which P4VP is dissolved, the dissolved concentration of P4VP is lower than the flow rate of the carbon paste. It was confirmed that the properties, viscosity, and mixing weight ratio of sulfuric acid to powdered activated carbon have a greater influence. Therefore, the aforementioned ρ.
の充填密度Ｃｇ ／ ａｎｔ：］ 、 Ｖｐ ：カーボ
ンペーストが基本セル内に占める体積使用効率〔％〕）
をより安定させるために、Ｐ４ＶＰの溶解濃度に適正な
範囲が与えられなければならない。Packing density Cg/ant: ], Vp: Volume usage efficiency [%] that carbon paste occupies in the basic cell
In order to make P4VP more stable, a proper range must be given to the dissolved concentration of P4VP.
上述した従来のカーボンペースト電極に対し、本発明は
、フェノール樹脂系粉末活性炭と、Ｐ４ＶＰを溶解した
硫酸との組合せでカーボンペースト内の粉末活性炭の充
填密度と、ドクターナイフ工法による体積使用効率を最
適化し、粉末活性炭の実質的な充填密度を安定させるた
めに、硫酸中のＰ４ＶＰ濃度に範囲を与える点に相違点
を有する。In contrast to the conventional carbon paste electrode described above, the present invention optimizes the packing density of the powdered activated carbon in the carbon paste and the volume usage efficiency using the doctor knife method by combining phenolic resin-based powdered activated carbon and sulfuric acid in which P4VP is dissolved. The difference lies in providing a range of P4VP concentration in the sulfuric acid to stabilize the substantial packing density of the powdered activated carbon.
本発明のカーボンペースト電極は、フェノール樹脂系粉
末活性炭と、Ｐ４ＶＰが０．１〜０．８重量％の範囲で
溶解した硫酸からなる。The carbon paste electrode of the present invention consists of phenolic resin powder activated carbon and sulfuric acid in which P4VP is dissolved in a range of 0.1 to 0.8% by weight.
次に本発明の実施例を詳述する。 Next, embodiments of the present invention will be described in detail.
〔実施例１〕
第４図は、本発明のカーボンペースト電極を適用した電
気二重層コンデンサの基本セルの縦断面図である。図中
、１はカーボンペースト電極、２はイオン透過性で非電
子伝導性の多孔性セパレータ、３は絶縁性のガスケット
、４は導電性セパレータ、５は基本セルである。第５図
は、基本セル５の積層体６の外観図である。[Example 1] FIG. 4 is a longitudinal sectional view of a basic cell of an electric double layer capacitor to which the carbon paste electrode of the present invention is applied. In the figure, 1 is a carbon paste electrode, 2 is an ion-permeable and non-electronically conductive porous separator, 3 is an insulating gasket, 4 is a conductive separator, and 5 is a basic cell. FIG. 5 is an external view of the laminate 6 of the basic cell 5.
平均粒子径２μｍ（光透過式遠心沈降法による）、比表
面積１２００ポ／ｇ（ＢＥＴ法による）のフェノール樹
脂系粉末活性炭を、第１表の硫酸Ａと混合して、流動性
を持ったカーボンペーストを調製する。次に厚さ０．４
ｍｍで、外形φ２３ｍｍ。Phenol resin powder activated carbon with an average particle diameter of 2 μm (by light transmission centrifugal sedimentation method) and a specific surface area of 1200 po/g (by BET method) is mixed with sulfuric acid A shown in Table 1 to form fluid carbon. Prepare the paste. Next, the thickness is 0.4
mm, external diameter φ23mm.
内径φ１８ｍｍに打抜かれたリング状の絶縁性ブチルゴ
ムシートを絶縁性ガスケット３となし、厚さ０．０５ｍ
ｍで、直径φ２３ｍｍの円板上に打ち抜かれた、導電性
カーボンを配合したホリブロビレンシートを導電性セパ
レータ４となし、両者を接着して形成された凹部に前述
のカーボンペーストをドクターナイフ工法で充填し、カ
ーボンペースト電極ｌとなす。この充填シート一対を厚
さ１１０μｍ 、直径φ２０印、空孔率１８％のポリエ
チレンを基材とした多孔性セパレータ２を介して合体し
、基本セル５を得た。さらに、基本セル５を６枚直列に
積層し、本発明例の積層体６を得た。The insulating gasket 3 is a ring-shaped insulating butyl rubber sheet punched with an inner diameter of 18 mm, and the thickness is 0.05 m.
The conductive separator 4 is a hollybrobylene sheet containing conductive carbon, which is punched out on a disk with a diameter of 23 mm, and the aforementioned carbon paste is applied using the doctor knife method into the concave portion formed by gluing both together. Fill with carbon paste to form a carbon paste electrode. A pair of these filled sheets were combined via a porous separator 2 made of polyethylene having a thickness of 110 μm, a diameter of 20 mm, and a porosity of 18% to obtain a basic cell 5. Furthermore, six basic cells 5 were stacked in series to obtain a laminate 6 of the present invention example.
第１表
硫酸重量Ｃｇ）＋Ｐ ４ ＶＰ：１１量〔ｇ〕次に、カ
ーボンペースト電極１に含まれる硫酸が、第１表の硫酸
Ｂであること以外は、前述の本発明例と、同一材料・形
状・構成の積層体を、合わせて製作した。Table 1 Sulfuric acid weight Cg) + P 4 VP: 11 amount [g] Next, the same material as the above-mentioned example of the present invention was used, except that the sulfuric acid contained in carbon paste electrode 1 was sulfuric acid B shown in Table 1.・A laminate of different shapes and configurations was manufactured.
Ａ、Ｂ両者のカーボンペーストにおける、活性炭の充填
密度ρ。Ｃｇ／ｃ＋Ｄと、基本セル内でのカーボンペー
ストの占有する体積使用効率ｖＰ〔％〕、また、Ａ、Ｅ
両者のカーボンペーストを充填した積層体を、公知を自
立型のケーシング構造にかしめ封口し、動作電圧５．５
ｖの電気二重層コンデンサとなし、それぞれ１０個ずつ
、静電容量と、自己放電特性を測定したところ、その平
均値は第２表すのごとくなった。Packing density ρ of activated carbon in both carbon pastes A and B. Cg/c+D, volume usage efficiency vP [%] occupied by carbon paste in the basic cell, and A, E
The laminated body filled with both carbon pastes was caulked and sealed into a known self-supporting casing structure, and the operating voltage was 5.5.
When the capacitance and self-discharge characteristics of 10 electric double layer capacitors and 10 non-electric double layer capacitors were measured, the average values were as shown in the second table.
第２表
自己放電特性：直流電圧５ｖを２４時間印加後、室温で
、端子間開放状態で
２４時間放置した後の残留電圧。Table 2 Self-discharge characteristics: Residual voltage after applying a DC voltage of 5 V for 24 hours and leaving the terminals open for 24 hours at room temperature.
第２表ａより、Ｐ４ＶＰを溶解した硫酸Ａを用いたカー
ボンペーストの方が、粉末活性炭の充填密度ρ。［：ｇ
／ｃａｆｌは大きく、逆に基本セル内の体積使用効率は
低下し、両者の積ρ。×Ｖｐ は大きくなっている。From Table 2 a, the packing density ρ of powdered activated carbon is higher in the carbon paste using sulfuric acid A in which P4VP is dissolved. [:g
/cafl is large, and conversely, the volume usage efficiency within the basic cell decreases, and the product of both ρ. ×Vp is increasing.
また、第２表すより、硫酸Ａの方が、静電容量が大きい
。これは、第２表ａのρ。×ＮＬの値が大きいことによ
る。また自己放電特性も、硫酸Ａの方が優っている。こ
れも、前述したＰ４ＶＰのバインダー効果によると考え
られる。Furthermore, sulfuric acid A has a larger capacitance than the second expression. This is ρ in Table 2 a. This is due to the large value of ×NL. Sulfuric acid A is also superior in self-discharge characteristics. This is also considered to be due to the binder effect of P4VP mentioned above.
以上より、硫酸にＰ４ＶＰを０．４５重量％溶解させた
方が、カーボンペーストに含まれる活性炭粉末の充填及
び、電気特性上優っているといえる。From the above, it can be said that dissolving 0.45% by weight of P4VP in sulfuric acid is superior in filling the activated carbon powder contained in the carbon paste and in electrical properties.
〔実施例２〕
次に、カーボンペースト電極に含まれる硫酸が第３表の
内容の活性炭である以外は、実施例１と同一の材料・形
状・構造を有する電気二重層コンデンサを各１０個製作
した。それぞれのカーボンペーストのρ。ｒ Ｖ Ｐ
ｒρ。×五を第４表ａに電気１０〇
二重層コンデンサの静電容量、自己放電特性を第４表す
に示す。[Example 2] Next, ten electric double layer capacitors each having the same material, shape, and structure as in Example 1 were manufactured, except that the sulfuric acid contained in the carbon paste electrode was activated carbon as shown in Table 3. did. ρ of each carbon paste. r V P
rρ. ×5 is shown in Table 4 a. The capacitance and self-discharge characteristics of the electric 100 double layer capacitor are shown in Table 4.
第３表 第４表ａより、Ｐ４ＶＰ濃度が増加するにつれて、ρ。Table 3 From Table 4a, as the P4VP concentration increases, ρ.
は増加し、Ｖｐは低下する傾向にあることがわかる。ρ
。×ＶＰの値は、Ｐ４ＶＰ濃度１．０重量％で急激に低
下している。よって、第４表すの静電容量も、ρ。×ｙ
ムの値の大小関係と一致している。自己放電特性はほぼ
等しくなっている。It can be seen that Vp tends to increase while Vp tends to decrease. ρ
. The value of ×VP decreases rapidly at a P4VP concentration of 1.0% by weight. Therefore, the capacitance in the fourth expression is also ρ. ×y
This is consistent with the magnitude relationship between the values of The self-discharge characteristics are almost the same.
以上、実施例１，２を総括すると、Ｐ４ＶＰ濃度を適正
範囲に設定することで、ρ。×ｙムと、静電容量を安定
させ得ることがわかる。To summarize Examples 1 and 2 above, by setting the P4VP concentration within an appropriate range, ρ can be reduced. It can be seen that the capacitance can be stabilized.
第３表ａと第４表ａより、Ｐ４ＶＰ濃度とρ。From Table 3 a and Table 4 a, P4VP concentration and ρ.
との関係を第１図に、Ｐ４ＶＰ濃度とｖＰとの関係を第
２図に示す。ρ。はＰ４ＶＰ濃度増大に伴い増加し、ｖ
Ｐは逆に低下することがわかる。FIG. 1 shows the relationship between P4VP concentration and vP, and FIG. 2 shows the relationship between P4VP concentration and vP. ρ. increases with increasing P4VP concentration, and v
It can be seen that P conversely decreases.
よって、Ｐ４ＶＰ濃度と、ρ。×Δアとの関係を図示す
ると第３図のごとく、上に凸の曲線となり、Ｐ４ＶＰ濃
度が０．１〜０．８重量％でρ。×ｙＬがはぼ一定とな
ることが確認された。Therefore, the P4VP concentration and ρ. When the relationship between xΔa and A is illustrated, it becomes an upwardly convex curve as shown in FIG. 3, and ρ when the P4VP concentration is 0.1 to 0.8% by weight. It was confirmed that xyL is approximately constant.
第４表
自己放電特性：直流電圧５ｖを２４時間印加後、室温で
、端子間開放状態で
２４時間放置した後の残留電圧。Table 4 Self-discharge characteristics: Residual voltage after applying a DC voltage of 5 V for 24 hours and leaving the terminals open for 24 hours at room temperature.
以上説明したように本発明は、フェノール樹脂系粉末活
性炭と、Ｐ４ＶＰを溶解した硫酸からなるカーボンペー
スト電極において、Ｐ４ＶＰ濃度を０．１〜０．８重量
％にすることで、粉末活性炭のAs explained above, the present invention provides a carbon paste electrode made of phenolic resin-based powder activated carbon and sulfuric acid in which P4VP is dissolved, by adjusting the P4VP concentration to 0.1 to 0.8% by weight.
第１図は本発明のＰ４ＶＰ濃度とρ。［：ｇ／ｃｎＤと
の関係を表わすプロット図、第２図は本発明のＰ４ＶＰ
濃度とｖｐ（％〕との関係を表わすプロット図、第３図
は、本発明のＰ４ＶＰ濃度と、ρ。ｘ−”−１： ｇ
／ｃｌ ：Ｉとの関係を表わすプロット図、第４図は、
本発明倒で製作した電気二重層コンデンサの基本セルの
縦断面図、第５図は基本セルの積層体の外観図である。
ｌ・・・・・・カーボンペースト電極、２・・・・・・
多孔性セハレータ、３・・・・・・絶縁性ガスケット、
４・・・・・・導Ｎ性セパレータ、５・・・・・・基本
セル、６・・・・・・積層体。
代理人 弁理士 内 原 音
半１記
事２図
／Ｚ４゜
茅５０FIG. 1 shows the P4VP concentration and ρ of the present invention. [: Plot diagram showing the relationship with g/cnD, Figure 2 shows the P4VP of the present invention.
FIG. 3, a plot diagram showing the relationship between concentration and vp (%), shows the P4VP concentration of the present invention and ρ.x-”-1: g
/cl : The plot diagram showing the relationship with I, Figure 4, is:
FIG. 5 is a vertical sectional view of a basic cell of an electric double layer capacitor manufactured according to the present invention, and FIG. 5 is an external view of a laminate of the basic cell. l...Carbon paste electrode, 2...
porous sehalator, 3... insulating gasket,
4... N-conducting separator, 5... Basic cell, 6... Laminate. Agent Patent Attorney Otohan Uchihara 1 article 2 illustrations/Z4゜Kaya 50
Claims (1)
両電極とする電気二重層コンデンサ用カーボンペースト
電極において、前記硫酸水溶液にポリ−４−ビニルピリ
ジンが０．１〜０．８重量％含まれることを特徴とする
電気二重層コンデンサ用カーボンペースト電極。In a carbon paste electrode for an electric double layer capacitor in which both electrodes are a mixture of phenolic resin powder activated carbon and a sulfuric acid aqueous solution, the sulfuric acid aqueous solution contains 0.1 to 0.8% by weight of poly-4-vinylpyridine. Characteristic carbon paste electrodes for electric double layer capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63023161A JP2722477B2 (en) | 1988-02-02 | 1988-02-02 | Carbon paste electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63023161A JP2722477B2 (en) | 1988-02-02 | 1988-02-02 | Carbon paste electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01196807A true JPH01196807A (en) | 1989-08-08 |
| JP2722477B2 JP2722477B2 (en) | 1998-03-04 |
Family
ID=12102885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63023161A Expired - Lifetime JP2722477B2 (en) | 1988-02-02 | 1988-02-02 | Carbon paste electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2722477B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7092239B2 (en) | 2001-02-06 | 2006-08-15 | Nec Tokin Corporation | Electric double layer capacitor with improved activated carbon electrodes |
| WO2009058226A3 (en) * | 2007-10-31 | 2009-12-17 | Corning Incorporated | High energy density ultracapacitor |
| JP2010226111A (en) * | 2009-03-23 | 2010-10-07 | Avx Corp | Electric double layer capacitor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4290615B2 (en) * | 2004-07-21 | 2009-07-08 | 三洋電機株式会社 | Membrane electrode assembly, fuel cell stack, fuel cell system, and method of manufacturing membrane electrode assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990919A (en) * | 1982-11-17 | 1984-05-25 | 日本電気株式会社 | Carbon paste electrode |
| JPS6027113A (en) * | 1983-07-22 | 1985-02-12 | 松下電器産業株式会社 | Electric double layer capacitor |
| JPS60170172A (en) * | 1984-02-13 | 1985-09-03 | Matsushita Electric Ind Co Ltd | Rechargeable electrochemical device |
-
1988
- 1988-02-02 JP JP63023161A patent/JP2722477B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990919A (en) * | 1982-11-17 | 1984-05-25 | 日本電気株式会社 | Carbon paste electrode |
| JPS6027113A (en) * | 1983-07-22 | 1985-02-12 | 松下電器産業株式会社 | Electric double layer capacitor |
| JPS60170172A (en) * | 1984-02-13 | 1985-09-03 | Matsushita Electric Ind Co Ltd | Rechargeable electrochemical device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7092239B2 (en) | 2001-02-06 | 2006-08-15 | Nec Tokin Corporation | Electric double layer capacitor with improved activated carbon electrodes |
| WO2009058226A3 (en) * | 2007-10-31 | 2009-12-17 | Corning Incorporated | High energy density ultracapacitor |
| JP2010226111A (en) * | 2009-03-23 | 2010-10-07 | Avx Corp | Electric double layer capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2722477B2 (en) | 1998-03-04 |
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