JPH11121293A - Electric double-layer capacitor, electrode and manufacture thereof - Google Patents
Electric double-layer capacitor, electrode and manufacture thereofInfo
- Publication number
- JPH11121293A JPH11121293A JP9280516A JP28051697A JPH11121293A JP H11121293 A JPH11121293 A JP H11121293A JP 9280516 A JP9280516 A JP 9280516A JP 28051697 A JP28051697 A JP 28051697A JP H11121293 A JPH11121293 A JP H11121293A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- phenol resin
- electric double
- layer capacitor
- carbide
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気二重層コンデ
ンサ、電気二重層コンデンサ用電極及びその製造方法に
関する。The present invention relates to an electric double layer capacitor, an electrode for an electric double layer capacitor, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】電気二重層コンデンサは、活性炭の粉末
に電解液をしみこませ、活性炭と電解液の界面にできる
電気二重層の静電容量を利用したコンデンサである。耐
電圧、最高使用温度は、電解液の分解電圧・温度に依存
しており、定格電圧は数Ｖと低いが、ファラッドオーダ
の静電容量が容易に得られることから、電池の代わりに
半導体メモリ（Ｄ−ＲＡＭ）のバックアップ用等の低電
流密度の用途に多く用いられるようになっており、最近
では、もっと電流密度の高い用途、例えば車載鉛蓄電池
の代わり、にも使用することが研究されている。2. Description of the Related Art An electric double layer capacitor is a capacitor utilizing an electrostatic solution of an activated carbon powder and an electrolytic solution impregnated in an activated carbon powder. The withstand voltage and the maximum operating temperature depend on the decomposition voltage and temperature of the electrolytic solution, and the rated voltage is as low as several volts. However, since the capacitance in the farad order can be easily obtained, a semiconductor memory is used instead of a battery. It has been widely used for low current density applications such as backup of (D-RAM), and has recently been studied for use in applications having higher current densities, for example, in place of in-vehicle lead-acid batteries. ing.
【０００３】従来、電気二重層コンデンサ用電極とし
て、活性炭にバインダーを混入させ焼結したものや焼結
後に腑活処理（酸化による不純物除去処理）したものを
用いていた。しかし、これらの電極を使用すると、次の
ような問題点が生じていた。 ａ）活性炭はマクロポアが多く細孔体積比率が高いた
め、密度が低い。 ｂ）比表面積は大きいが細孔径の分布が広いため、電気
二重層コンデンサ用電極として働く実効的な細孔は少な
い。 ｃ）焼結を促進する目的で比較的高温で焼結するため、
電気二重層コンデンサ用電極として働く実効的な細孔は
少ない。 ｄ）低温（８５０℃以下）で焼結すると、グラファイト
化が進まないため、粒子間焼結強度がなく、そして、抵
抗値が高い。Hitherto, as an electrode for an electric double layer capacitor, a material obtained by mixing a binder with activated carbon and sintering or a material subjected to an activation treatment (impurity removal treatment by oxidation) after sintering has been used. However, the use of these electrodes has caused the following problems. a) Activated carbon has a low density because it has many macropores and a high pore volume ratio. b) Although the specific surface area is large, the distribution of the pore diameter is wide, so that there are few effective pores acting as electrodes for electric double layer capacitors. c) sintering at a relatively high temperature to promote sintering,
There are few effective pores acting as electrodes for electric double layer capacitors. d) When sintering at a low temperature (850 ° C. or lower), graphitization does not proceed, so there is no intergranular sintering strength and the resistance value is high.
【０００４】活性炭や炭素繊維にフェノール樹脂を担持
させた後繰返し賦活する方法が、特開昭６３−３１４８
２１号公報により知られているが、工程が複雑であり、
コストがかかっていた。フェノール樹脂を添加して炭化
した電極が特開昭６３−２２６０１９号公報に記載され
ているが、フェノール樹脂炭化物は電気二重層コンデン
サ用電極に最適な細孔が少なく、容量が小さい。Japanese Patent Application Laid-Open No. 63-3148 discloses a method in which a phenol resin is supported on activated carbon or carbon fiber and then activated repeatedly.
No. 21, the process is complicated,
It was costly. An electrode carbonized by adding a phenolic resin is described in JP-A-63-226019, but a phenolic resin carbide has a small number of pores and a small capacity that are optimal for an electrode for an electric double layer capacitor.
【０００５】これらの問題点を解決するため、ＰＶＤＣ
（ポリ塩化ビニリデン）樹脂の炭化物を使用することが
提案されている（特開平７−２４９５５１号公報参
照）。ＰＶＤＣ樹脂（あるいは塩化ビニリデン系共重合
体）炭化物を使用すると、他の活性炭と比較して長所を
有しており、その理由として、次のことによるといわれ
ている。ＰＶＤＣ樹脂は、２つの脱塩酸反応温度を有し
ている。第一点は１８０℃から２５０℃で自己分子鎖内
での脱塩酸反応であり、第二点は４５０℃から５５０℃
での分子鎖間の脱塩酸反応で、その際分子間結合が生じ
ている。第一点の温度範囲で加熱すると脱塩酸反応によ
り細孔が形成され、その細孔は、３６Å以下のマイクロ
ポアとよばれるものであって、これが電気二重層コンデ
ンサ用電極として使用されると電解液との界面として有
効に働く。このため、電極としての腑活処理は不必要で
ある。また、第二点の温度範囲以上で加熱すると、脱塩
酸反応により有効マイクロポアを保持しつつ比較的低温
でも焼結を進行させることができる。このため、電気二
重層コンデンサ用電極には不要である大きな径のメソポ
アやマクロポアの発生を抑えることができる。このた
め、ＰＶＤＣ樹脂炭化物は、比表面積は活性炭に比べて
少ないが、焼結密度が活性炭に比べて高くなり、体積あ
たりの容量は大きくなる。In order to solve these problems, PVDC
It has been proposed to use a carbide of (polyvinylidene chloride) resin (see JP-A-7-249551). The use of PVDC resin (or vinylidene chloride-based copolymer) carbide has advantages over other activated carbons because of the following. PVDC resins have two dehydrochlorination reaction temperatures. The first point is a dehydrochlorination reaction within its own molecular chain at 180 ° C to 250 ° C, and the second point is 450 ° C to 550 ° C.
In this case, an intermolecular bond is generated in the dehydrochlorination reaction between the molecular chains. When heated in the temperature range of the first point, pores are formed by the dehydrochlorination reaction, and the pores are called micropores having a diameter of 36 ° or less. It works effectively as an interface with the liquid. For this reason, activation treatment as an electrode is unnecessary. Further, when the heating is performed at a temperature not lower than the temperature range of the second point, sintering can be advanced even at a relatively low temperature while maintaining effective micropores by the dehydrochlorination reaction. For this reason, generation of mesopores or macropores having a large diameter, which is unnecessary for the electrode for an electric double layer capacitor, can be suppressed. For this reason, the PVDC resin carbide has a smaller specific surface area than activated carbon, but has a higher sintering density than activated carbon and a larger capacity per volume.
【０００６】しかし、ＰＶＤＣ樹脂炭化物は、次のよう
な問題点を有している。 ａ）バインダーレスであるため、成形しにくい。 ｂ）低温（８５０℃以下）での焼結ではグラファイトが
進まないため、オーミックな抵抗が高い。そのため高電
流密度においてはＩＲドロップが大きく容量が取り出せ
ない。 ｃ）ＰＶＤＣ樹脂炭化物は高密度に焼結できるが、粒子
間の空隙やマクロポアが少ないため拡散抵抗が高い。[0006] However, PVDC resin carbide has the following problems. a) It is difficult to mold because it is binderless. b) Ohmic resistance is high because graphite does not advance during sintering at low temperature (850 ° C. or lower). Therefore, at a high current density, the IR drop is large and the capacity cannot be taken out. c) The PVDC resin carbide can be sintered at a high density, but has a high diffusion resistance due to few voids and macropores between particles.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、このような
ＰＶＤＣ樹脂炭化物が有する問題点をなくすために研究
して見出されたものであり、成形しやすく、そして、電
極抵抗を低減し、容量を増大した電気二重層コンデンサ
及び電極を提供するものである。DISCLOSURE OF THE INVENTION The present invention has been found by research to eliminate such problems of the PVDC resin carbide, and has been found to be easy to mold and to reduce electrode resistance. An object of the present invention is to provide an electric double layer capacitor and an electrode having an increased capacity.
【０００８】[0008]
【課題を解決するための手段】本発明は、ＰＶＤＣ樹脂
炭化物からなる電気二重層コンデンサ用電極において、
フェノール樹脂炭化物を有する電気二重層コンデンサ用
電極である。SUMMARY OF THE INVENTION The present invention relates to an electrode for an electric double layer capacitor comprising a PVDC resin carbide.
It is an electrode for an electric double layer capacitor having a phenolic resin carbide.
【０００９】また、本発明は、ＰＶＤＣ樹脂炭化物から
なる電極を具備する電気二重層コンデンサにおいて、前
記電極は、フェノール樹脂炭化物を有する電気二重層コ
ンデンサである。Further, the present invention relates to an electric double layer capacitor having an electrode made of a PVDC resin carbide, wherein the electrode is an electric double layer capacitor having a phenol resin carbide.
【００１０】そして、本発明は、ＰＶＤＣ樹脂を１８０
〜４５０℃で炭化させ、得られた炭化物にフェノール樹
脂を混合し、成形した後、６００〜９５０℃で焼結する
電気二重層コンデンサ用電極の製造方法である。[0010] The present invention provides a PVDC resin of 180
This is a method for producing an electrode for an electric double layer capacitor in which carbonization is performed at ~ 450 ° C, a phenol resin is mixed with the obtained carbide, molded, and then sintered at 600 to 950 ° C.
【００１１】更に、本発明は、フェノール樹脂添加量
は、３．０〜１２．５ｗｔ％である電気二重層コンデン
サ用電極の製造方法である。Further, the present invention is a method for producing an electrode for an electric double layer capacitor, wherein the amount of phenol resin added is 3.0 to 12.5 wt%.
【００１２】[0012]
【発明の実施の形態】本発明の発明の実施の形態を説明
する。本発明の電気二重層コンデンサ、電極及びその製
造方法の実施例と比較例を説明する。電気二重層コンデ
ンサ用電極の製造方法について、実施例１〜４及び比較
例１を説明する。ＰＶＤＣ樹脂を３００℃で炭化させ、
振動ミリング機で粉砕して炭化粉を得る。レゾールタイ
プのフェノール樹脂が固形分換算で炭化粉に対して３．
０〜１６．０ｗｔ％になるようにフェノール樹脂水溶液
に浸漬し、混合してスラリ化し、６０℃で４〜２４時間
乾燥した後、振動ミリング機で更に粉砕し、２５ｍｍ□
のカーボン製型につめて２０〜４００ｋｇ／ｃｍ2の圧
力を加え、温度１８０℃で成形し、焼結炉で８５０℃で
焼結して電極を得た。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described. Examples and comparative examples of the electric double layer capacitor, the electrode, and the method of manufacturing the same according to the present invention will be described. Examples 1 to 4 and Comparative Example 1 will be described with respect to a method for manufacturing an electrode for an electric double layer capacitor. PVDC resin is carbonized at 300 ° C.
Pulverized by a vibration milling machine to obtain carbonized powder. 2. Resole-type phenol resin is equivalent to carbonized powder in terms of solid content.
It is immersed in a phenol resin aqueous solution so as to have a concentration of 0 to 16.0 wt%, mixed and slurried, dried at 60 ° C. for 4 to 24 hours, and further pulverized by a vibration milling machine to obtain 25 mm
And pressurized at a pressure of 20 to 400 kg / cm 2 , molded at a temperature of 180 ° C., and sintered at 850 ° C. in a sintering furnace to obtain an electrode.
【００１３】一方、比較例２として、ＰＶＤＣ樹脂を６
００℃で炭化させたものを振動ミリング機で粉砕して炭
化粉を得る。レゾールタイプのフェノール樹脂が固形分
換算で炭化粉に対して９．０ｗｔ％になるようにフェノ
ール樹脂水溶液に浸漬し、混合してスラリ化し、６０℃
で４〜２４時間乾燥した後、振動ミリング機で更に粉砕
し、２５ｍｍ□のカーボン製型につめて２０〜４００ｋ
ｇ／ｃｍ2の圧力を加え、温度１８０℃で成形し、焼結
炉で８５０℃で焼結して電極を得た。On the other hand, as Comparative Example 2, 6
The carbonized powder at 00 ° C is pulverized by a vibration milling machine to obtain a carbonized powder. The resol type phenol resin is immersed in an aqueous solution of phenol resin so as to be 9.0 wt% in terms of solid content with respect to the carbonized powder, mixed, and slurried.
After drying for 4 to 24 hours, the mixture is further pulverized by a vibration milling machine, packed in a 25 mm square carbon mold, and then 20 to 400 k
An electrode was obtained by applying a pressure of g / cm 2 , molding at a temperature of 180 ° C., and sintering at 850 ° C. in a sintering furnace.
【００１４】次に、比較例３として、ＰＶＤＣ樹脂を３
００℃で炭化させたものを振動ミリング機で粉砕して炭
化粉を得る。２５ｍｍ□のカーボン製型につめて２０〜
４００ｋｇ／ｃｍ2の圧力で成形しながら温度が８５０
℃になるまで通電焼結して電極を得た。Next, as Comparative Example 3, PVDC resin was
The carbonized powder at 00 ° C is pulverized by a vibration milling machine to obtain a carbonized powder. 20mm in a 25mm square carbon mold
The temperature is 850 while molding at a pressure of 400 kg / cm 2.
The electrode was obtained by current sintering until the temperature reached ° C.
【００１５】以上の実施例１〜４及び比較例１〜３で得
られた電極を１ｍｍの厚さに研磨し、４端子４深針法で
シート抵抗を測定した。次に、電極を３５ｗｔ％硫酸に
浸漬し、減圧含浸を２４時間行い、２００μｍ厚のガラ
ス不織繊維のセパレータ１を挾んで電極２を対向させ、
その外側にＰｔ板を配して集電板３とし、更にその外側
からテフロンからなる固定板４で挾み込んで固定してセ
ルを作製した（図１参照）。このセルを３５ｗｔ％硫酸
に浸漬して、電極投影面積に対する電流密度０．０２Ａ
／ｃｍ2及び０．５Ａ／ｃｍ2のときの電極体積容量を測
定した。測定結果を表１に示す。The electrodes obtained in Examples 1 to 4 and Comparative Examples 1 to 3 were polished to a thickness of 1 mm, and the sheet resistance was measured by a four-terminal four-needle method. Next, the electrode was immersed in 35 wt% sulfuric acid, and impregnated under reduced pressure for 24 hours. The electrode 2 was opposed to the non-woven glass separator 1 having a thickness of 200 μm.
A Pt plate was disposed outside the collector plate 3 to form a current collector plate 3. From the outside, a cell was produced by sandwiching and fixing with a fixing plate 4 made of Teflon (see FIG. 1). This cell was immersed in 35 wt% sulfuric acid to obtain a current density of 0.02 A with respect to the projected area of the electrode.
/ Cm 2 and 0.5 A / cm 2 were measured. Table 1 shows the measurement results.
【表１】 [Table 1]
【００１６】表１に示すように、実施例１〜４の３００
℃で炭化したＰＶＤＣ樹脂にフェノール樹脂を添加した
電極は、無添加である比較例３の電極と比べて、０．０
２Ａ／□の低電流密度では著しい容量の増加はみられな
いが、０．５Ａ／□の高電流密度側では２倍以上の増加
がみられる。これは、添加したフェノール樹脂が粒子間
のバインダとして働いたためシート抵抗値が下がり、高
電流密度における抵抗による損失が減少したためであ
る。なお、実施例１〜４で得られた電極は、電極の強度
も強くなった。As shown in Table 1, 300 to 300 of Examples 1 to 4
The electrode obtained by adding the phenol resin to the PVDC resin carbonized at a temperature of 0 ° C. was 0.0
At a low current density of 2 A / □, no remarkable increase in capacity is observed, but at a high current density of 0.5 A / □, an increase of more than twice is observed. This is because the added phenol resin worked as a binder between the particles, so that the sheet resistance value was reduced and the loss due to resistance at high current density was reduced. Note that the electrodes obtained in Examples 1 to 4 also had higher electrode strength.
【００１７】また、比較例２の電極は、低電流密度にお
ける容量が小さく、高電流密度側の容量も実施例１〜４
に比べると小さい。これは、６００℃で炭化したＰＶＤ
Ｃ樹脂にフェノール樹脂を添加したため、第一点での脱
塩酸反応が起こらないので、容量増大に寄与する細孔が
生成されず、そして、フェノール樹脂がＰＶＤＣ樹脂炭
化物の細孔に吸着したまま炭化し、容量発生に寄与する
細孔が有効に活用されないためである。一方、実施例１
〜４の電極は、３００℃で炭化するため第一点での脱塩
酸反応が起こって細孔が生成される。そして細孔内にあ
るフェノール樹脂は、焼結時にガス透過の孔や亀裂が発
生して、表面積を増大させ、容量を増大させるのであ
る。しかし、比較例１の１６．０ｗｔ％添加したもの
は、フェノール樹脂の吸着量が多すぎて、ガス発生によ
るフェノール樹脂への効果が少なくなり、シート抵抗が
低いにもかかわらず、容量は増大しない。Further, the electrode of Comparative Example 2 has a small capacity at a low current density, and also has a small capacity at a high current density.
Smaller than. This is PVD carbonized at 600 ° C.
Since the phenol resin was added to the C resin, the dehydrochlorination reaction at the first point did not occur, so that pores contributing to an increase in capacity were not generated, and the phenol resin was carbonized while being adsorbed on the pores of the PVDC resin carbide. However, this is because pores that contribute to capacity generation are not effectively utilized. On the other hand, Example 1
The electrodes Nos. 4 to 4 are carbonized at 300 ° C., so that a dehydrochlorination reaction occurs at the first point to generate pores. The phenolic resin in the pores causes gas-permeable pores and cracks during sintering, increasing the surface area and increasing the capacity. However, in the case of 16.0 wt% added in Comparative Example 1, the adsorption amount of the phenol resin was too large, and the effect of the gas generation on the phenol resin was reduced, and the capacity did not increase despite the low sheet resistance. .
【００１８】なお、フェノール樹脂炭化物は、低抵抗で
あるため、高充放電電流密度の電極が得られる。そし
て、フェノール樹脂炭化物の含有量は、ＰＶＤＣ樹脂の
初期炭化温度によって異なる。初期炭化温度が低いと、
初期のＰＶＤＣ樹脂の脱塩酸量は少なくなるため、焼結
段階での脱塩酸量が多くなって、フェノール樹脂炭化物
の含有比率は高くなる。逆に、初期炭化温度が高いと、
初期のＰＶＤＣ樹脂の脱塩酸量は多くなるため、焼結段
階での脱塩酸量が少なくなって、フェノール樹脂炭化物
は少なくなる。フェノール樹脂を３．０〜１２．５ｗｔ
％添加した場合、電極中のフェノール樹脂炭化物の含有
量は、２〜１８ｗｔ％になる。Since the phenolic carbide has low resistance, an electrode having a high charge / discharge current density can be obtained. The content of the phenolic carbide varies depending on the initial carbonization temperature of the PVDC resin. If the initial carbonization temperature is low,
Since the amount of dehydrochlorination of the initial PVDC resin decreases, the amount of dehydrochlorination in the sintering step increases, and the content ratio of the phenolic resin carbide increases. Conversely, if the initial carbonization temperature is high,
Since the amount of dehydrochlorination of the initial PVDC resin increases, the amount of dehydrochlorination in the sintering step decreases, and the amount of phenol resin carbide decreases. 3.0-12.5 wt% phenolic resin
%, The content of the phenolic carbide in the electrode is 2 to 18 wt%.
【００１９】フェノール樹脂の添加方法として、レゾー
ルタイプのフェノール樹脂を水やアルコールのような溶
媒に溶かすかエマルジョン状態にして添加するのが好ま
しい。As a method of adding the phenol resin, it is preferable to add a resol type phenol resin dissolved in a solvent such as water or alcohol or in an emulsion state.
【００２０】フェノール樹脂の添加量は、３．０〜１
２．５ｗｔ％が好ましい。３．０ｗｔ％未満とすると、
電極の抵抗値を下げることができず、また、１２．５ｗ
ｔ％を超過すると添加量が多すぎて、電極の容量を向上
させることはできない。The amount of the phenol resin added is 3.0 to 1
2.5 wt% is preferred. If less than 3.0 wt%,
The resistance of the electrode cannot be reduced, and 12.5 w
If it exceeds t%, the amount of addition is too large and the capacity of the electrode cannot be improved.
【００２１】[0021]
【発明の効果】本発明によれば、フェノール樹脂がバイ
ンダとなり、焼結後の抵抗値が減少し、電極の強度を上
げることができる。電極の抵抗値を減少させ、特に、高
電流密度における損失を減少させ、容量を向上させるこ
とができるので、高出力密度の電気二重層コンデンサと
することができる。According to the present invention, the phenol resin serves as a binder, the resistance value after sintering decreases, and the strength of the electrode can be increased. Since the resistance value of the electrode can be reduced, and particularly the loss at a high current density can be reduced and the capacity can be improved, an electric double layer capacitor having a high output density can be obtained.
【図１】本実施例の製造方法で作製した電極の特性の測
定方法の説明図。FIG. 1 is an explanatory diagram of a method for measuring characteristics of an electrode manufactured by a manufacturing method according to an embodiment.
１ セパレータ ２ 電極 ３ 集電板 ４ 固定板 DESCRIPTION OF SYMBOLS 1 Separator 2 Electrode 3 Current collector 4 Fixing plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 牛尾 洋介 神奈川県藤沢市土棚８番地 株式会社い すゞ中央研究所内 (72)発明者 稲田 達也 長野県大町市大字大町6850番地 昭和電工 株式会社大町工場内 (72)発明者 増子 努 長野県大町市大字大町6850番地 昭和電工 株式会社大町工場内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yosuke Ushio 8 Tsuchiya, Fujisawa, Kanagawa Prefecture Isuzu Central Research Institute Co., Ltd. (72) Inventor Tsutomu Masuko 6850 Omachi, Omachi City, Nagano Prefecture Showa Denko Co., Ltd.
Claims (4)
コンデンサ用電極において、 フェノール樹脂炭化物を有することを特徴とする電気二
重層コンデンサ用電極。1. An electrode for an electric double layer capacitor comprising a PVDC resin carbide, wherein the electrode comprises a phenolic resin carbide.
する電気二重層コンデンサにおいて、 前記電極は、フェノール樹脂炭化物を有することを特徴
とする電気二重層コンデンサ。2. An electric double layer capacitor comprising an electrode made of a PVDC resin carbide, wherein the electrode has a phenol resin carbide.
させ、得られた炭化物にフェノール樹脂を混合し、成形
した後、６００〜９５０℃で焼結することを特徴とする
電気二重層コンデンサ用電極の製造方法。3. An electrode for an electric double layer capacitor, wherein a PVDC resin is carbonized at 180 to 450 ° C., a phenol resin is mixed with the obtained carbide, molded, and then sintered at 600 to 950 ° C. Manufacturing method.
電極の製造方法において、 フェノール樹脂添加量は、３．０〜１２．５ｗｔ％であ
ることを特徴とする電気二重層コンデンサ用電極の製造
方法。4. The method for manufacturing an electrode for an electric double layer capacitor according to claim 3, wherein the amount of the phenol resin added is 3.0 to 12.5 wt%. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9280516A JPH11121293A (en) | 1997-10-14 | 1997-10-14 | Electric double-layer capacitor, electrode and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9280516A JPH11121293A (en) | 1997-10-14 | 1997-10-14 | Electric double-layer capacitor, electrode and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11121293A true JPH11121293A (en) | 1999-04-30 |
Family
ID=17626198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9280516A Pending JPH11121293A (en) | 1997-10-14 | 1997-10-14 | Electric double-layer capacitor, electrode and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11121293A (en) |
-
1997
- 1997-10-14 JP JP9280516A patent/JPH11121293A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0143178B1 (en) | Polarizanble electrode | |
| JP3446339B2 (en) | Activated carbon production method | |
| JPH11121293A (en) | Electric double-layer capacitor, electrode and manufacture thereof | |
| JP2003183014A (en) | Porous carbon material, its producing method and electric double layer capacitor | |
| JP4394208B2 (en) | Polyvinylidene chloride resin powder and activated carbon | |
| JPH11121295A (en) | Electric double-layer capacitor, electrode, and manufacturing method therefor | |
| JPH11121292A (en) | Electric double-layer capacitor, electrode, and manufacture thereof | |
| JP3417206B2 (en) | Activated carbon material for electric double layer capacitors | |
| JPH11251197A (en) | Method for manufacturing carbon electrode for electric double layer capacitor | |
| JPH1197305A (en) | Electric double layer capacitor, electrode and its manufacture | |
| JP2006278364A (en) | Polarizable electrode for electric double layer capacitor and electric double layer capacitor | |
| JPH11121288A (en) | Electric double-layer capacitor | |
| JPH11121291A (en) | Electric double-layer capacitor, electrode and manufacture thereof | |
| JPH1197312A (en) | Double electric layer capacitor and electrode and manufacture therefor | |
| JPH1197317A (en) | Electric double layer capacitor, electrode and manufacturing method thereof | |
| JPH1197315A (en) | Electric double layer capacitor, electrode, and manufacture therefor | |
| JPH11121294A (en) | Electric double-layer capacitor, electrode, and manufacturing method therefor | |
| JPH1197316A (en) | Double electric layer capacitor and electrode and manufacture therefor | |
| JPH11121287A (en) | Electric double-layer capacitor, electrode, and manufacturing method therefor | |
| JPH11121290A (en) | Electric double-layer capacitor, electrode and manufacture thereof | |
| JPH1197314A (en) | Double electric layer capacitor and electrode and manufacture therefor | |
| JPH11121296A (en) | Electric double-layer capacitor, electrode, and manufacturing method therefor | |
| JPH1197310A (en) | Manufacture of electrode of electric double layer capacitor | |
| JP2000068161A (en) | Manufacture of electrode for electric double layer capacitor | |
| JPH1197313A (en) | Double electric layer capacitor and electrode and manufacture therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040714 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040714 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20040714 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20040720 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040714 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040721 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070201 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070213 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20070619 |