JPH0384915A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPH0384915A JPH0384915A JP1223438A JP22343889A JPH0384915A JP H0384915 A JPH0384915 A JP H0384915A JP 1223438 A JP1223438 A JP 1223438A JP 22343889 A JP22343889 A JP 22343889A JP H0384915 A JPH0384915 A JP H0384915A
- Authority
- JP
- Japan
- Prior art keywords
- double layer
- electric double
- layer capacitor
- electrolyte
- activated carbon
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000003792 electrolyte Substances 0.000 claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000007772 electrode material Substances 0.000 abstract description 5
- 229910001369 Brass Inorganic materials 0.000 abstract description 4
- 239000010951 brass Substances 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- 238000005470 impregnation Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 9
- 229920001971 elastomer Polymers 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005621 tetraalkylammonium salts Chemical class 0.000 description 1
- KBLZDCFTQSIIOH-UHFFFAOYSA-M tetrabutylazanium;perchlorate Chemical compound [O-]Cl(=O)(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC KBLZDCFTQSIIOH-UHFFFAOYSA-M 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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）
本発明は大容量で、等価直列抵抗を低減した小型で軽量
な電気二重層コンデンサに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a compact and lightweight electric double layer capacitor with large capacity and reduced equivalent series resistance.
（従来の技術）
活性炭を分極性電極とする電気二重層コンデンサの基本
構成は、活性炭層と集電極を片側分極性電極とし、この
分極性電極ｌ対の間に電解質溶液を含浸し、セパレータ
で電子的短絡を防止したものである。従来、電気二重層
コンデンサの分極性電極としては、活性炭粉末もしくは
活性炭繊維が用いられてきた。活性炭粉末、活性炭繊維
は自立性がなく、絶縁性ゴム、金属ケースに入れられた
形でしか電気二重層コンデンサを構成することができな
かった。このため非常に大容量の電気二重層コンデンサ
を製造するには大きな金属ケース等が必要となるため、
重量が重くなるといった欠点があった。また、これら活
性炭粉末、活性炭繊維は分極性電極として用いた場合、
活性炭粉末どうしまたは活性炭繊維どうしの接触抵抗が
大きいため電気二重層コンデンサの等価直列抵抗が大き
くなるといった欠点があった。そのため、固体状の活性
炭が作製されれば、活性炭粉末どうしまたは活性炭繊維
どうしの接触抵抗が低減されることが期待される。さら
に、固体状の活性炭には自立性があるため、圧力をかけ
ることにより分極性電極と集電極の間の電気的接続を行
わなくてすむため封止が簡便になるという利点と製造プ
ロセスが簡便になるという利点が期待されてきた。(Prior art) The basic structure of an electric double layer capacitor using activated carbon as a polarizable electrode is that the activated carbon layer and the collector electrode are polarizable electrodes on one side, an electrolyte solution is impregnated between one pair of polarizable electrodes, and a separator is used as the polarizable electrode. This prevents electronic short circuits. Conventionally, activated carbon powder or activated carbon fibers have been used as polarizable electrodes in electric double layer capacitors. Activated carbon powder and activated carbon fibers are not self-supporting, and electric double layer capacitors could only be constructed by being placed in an insulating rubber or metal case. For this reason, manufacturing a very large capacity electric double layer capacitor requires a large metal case, etc.
It had the disadvantage of being heavier. In addition, when these activated carbon powders and activated carbon fibers are used as polarizable electrodes,
Since the contact resistance between activated carbon powders or activated carbon fibers is large, there is a drawback that the equivalent series resistance of the electric double layer capacitor becomes large. Therefore, if solid activated carbon is produced, it is expected that the contact resistance between activated carbon powders or activated carbon fibers will be reduced. Furthermore, since solid activated carbon is self-supporting, there is no need to make an electrical connection between the polarizable electrode and the collector electrode by applying pressure, which simplifies the sealing process and simplifies the manufacturing process. It has been hoped that this will have the advantage of
ところで、従来の電気二重層コンデンサは小型で大容量
の充電が可能なコンデンサとして、マイコン、メモリ、
タイマーのバックアップ用に広く用いられている。また
、モーター等の駆動部品は起動時に大きな電流を必要と
するため、電気二重層コンデンサが補助電源として使用
されている。By the way, conventional electric double layer capacitors are small and can be charged with a large capacity, and are used in microcontrollers, memories, etc.
Widely used for timer backup. Furthermore, since driving parts such as motors require large currents when starting up, electric double layer capacitors are used as auxiliary power supplies.
瞬時に大電流を流す補助電源の用途には電気二重層コン
デンサの等価直列抵抗が高いとその抵抗の大きさにより
外部に流すことができる電流が制限されるため、等価直
列抵抗は低いことが望まれている。バックアップ用に電
気二重層コンデンサを用いる場合も、実際に蓄えられた
電荷による電圧よりも電気二重層コンデンサの等価直列
抵抗と流れる電流の積だけ電圧降下が起こってしまうた
め、電気二重層コンデンサの等価直列抵抗は低いことが
望まれている。一方、大きな電流を必要とするモーター
等の補助電源の用途として瞬時に大電流を取り出すこと
ができる非常に大容量、数１０Ｆ以上の電気二重層のコ
ンデンサの開発が望まれている。For auxiliary power supplies that instantaneously flow large currents, it is desirable that the equivalent series resistance be low, since if the equivalent series resistance of the electric double layer capacitor is high, the current that can be passed externally will be limited by the size of the resistance. It is rare. Even when using an electric double layer capacitor for backup, the voltage drop will occur by the product of the electric double layer capacitor's equivalent series resistance and the flowing current than the voltage due to the actual stored charge. It is desired that the series resistance be low. On the other hand, it is desired to develop an electric double layer capacitor with a very large capacity, several tens of F or more, which can instantly draw out a large current for use as an auxiliary power source for motors and the like that require a large current.
上記の従来技術を改善するためには固体状の活性炭の開
発が必須であったが、近年まで電気二重層コンデンサの
分極性電極として実用上使用され得るものはなかった。In order to improve the above-mentioned conventional technology, it was essential to develop solid activated carbon, but until recently, there was none that could be practically used as a polarizable electrode for electric double layer capacitors.
近年、カーボン材料の開発の進歩は著しく、ガス吸着、
脱臭用に比表面積が８００ｍ２７ｇ以上９多孔性ブロツ
ク状カーボン（例えば、三井石油化学工業（株）製条孔
性ブロック状カーボン、商品名“カーボセル″）等が開
発されている。これらのブロック状活性炭を用いて電気
二重層コンデンサを試作した例は未だ報告がない。In recent years, there has been remarkable progress in the development of carbon materials, including gas adsorption,
For deodorization, 9-porous block carbon having a specific surface area of 800 m27 g or more (for example, a strip of porous block carbon manufactured by Mitsui Petrochemical Industries, Ltd., trade name "Carbocell") has been developed. There have been no reports of prototype electric double layer capacitors made using these block-shaped activated carbons.
（発明が解決しようとする問題点ン
上述した従来の電気二重層コンデンサは分極性電極材料
に活性炭粉末もしくは活性炭繊維を用いていたため、数
１０Ｆ以上の大容量の電気二重層コンデンサを製造する
ことができない、活性炭粉末、活性炭繊維どうしの接触
抵抗のために等価直列抵抗の低減を図ることができない
といった問題点があった。また、活性炭粉末がアノード
、カソードの間に入り込むことによる電気的短絡を防ぐ
ためにセパレータを入れざるを得なく、このため等価直
列抵抗が大きくなるといった問題点があった。(Problems to be Solved by the Invention) The above-mentioned conventional electric double layer capacitors used activated carbon powder or activated carbon fibers as polarizable electrode materials, making it difficult to manufacture electric double layer capacitors with a large capacity of several tens of F or more. There were problems in that it was not possible to reduce the equivalent series resistance due to contact resistance between activated carbon powder and activated carbon fibers.Also, there was a problem in that it was impossible to reduce the equivalent series resistance due to the contact resistance between activated carbon powder and activated carbon fibers.In addition, there was a problem in that it was impossible to reduce the equivalent series resistance due to the contact resistance between activated carbon powder and activated carbon fibers. This posed the problem of increasing the equivalent series resistance because a separator had to be inserted in order to
本発明の目的は、分極性電極材料としてブロック状活性
炭多孔体を用い、分極性電極および電解液を無加圧で容
器に収納することにより大容量で笥価直列抵抗を低減し
た小型で軽量な電気二重層コンデンサを提供することに
ある。The purpose of the present invention is to create a small, lightweight, large-capacity, low-series resistance device by using a block-shaped activated carbon porous body as a polarizable electrode material and storing the polarizable electrode and electrolyte in a container without pressure. Our objective is to provide electric double layer capacitors.
（問題点を解決するための手段）
ブロック状活性炭多孔体を分極性電極材料に用い、分極
性電極および電解液を無加圧で容器に収納することを特
徴とする。(Means for Solving the Problems) The present invention is characterized in that a block-shaped activated carbon porous body is used as a polarizable electrode material, and the polarizable electrode and electrolyte are housed in a container without pressure.
以下実施例をもとに本発明を説明する。The present invention will be explained below based on Examples.
（実施例１）
まず本発明による電気二重層コンデンサを第１図に示す
。比表面積８５０ｍ２／ｇ、かさ密度０．３ｇ／ｃｍ３
のブロック状活性炭多孔体を長さ３０ｍｍ、幅１５ｍｍ
、厚さ２ｍｍの大きさに成形し、厚さ方向に垂直に１ｍ
ｍ径の金メツキした真鍮ネジ２を差込み、集電極１とし
た。分極性電極となるブロック状活性炭に金メツキした
真鍮ネジ２を差し込んだ後、電解液と同じ濃度の４重量
％硫酸水溶液に浸漬し、真空含浸により電解液を活性炭
内部の細孔へ導入した。耐圧５ｖの電気二重層コンデン
サを試作するために、これら（
を１２枚作製し、第１図に示すような形に配置した。(Example 1) First, an electric double layer capacitor according to the present invention is shown in FIG. Specific surface area 850m2/g, bulk density 0.3g/cm3
A block-shaped activated carbon porous body with a length of 30 mm and a width of 15 mm.
, molded to a size of 2 mm thick, and 1 m perpendicular to the thickness direction.
A gold-plated brass screw 2 with a diameter of m was inserted to form a collector electrode 1. After inserting a gold-plated brass screw 2 into a block-shaped activated carbon serving as a polarizable electrode, it was immersed in a 4% by weight aqueous sulfuric acid solution with the same concentration as the electrolyte, and the electrolyte was introduced into the pores inside the activated carbon by vacuum impregnation. In order to prototype an electric double layer capacitor with a withstand voltage of 5 V, 12 of these were fabricated and arranged in the shape shown in Figure 1.
その後、各電解室に４４重量％の硫酸水溶液を注いだ。Thereafter, a 44% by weight sulfuric acid aqueous solution was poured into each electrolytic chamber.
６組の電気二重層コンデンサの基本素子を導線３、この
場合金メツキした銅線を集電極に巻き付けることにより
直列に接続した。容器４は塩化ビニル製の厚み１ｍｍの
板を接着剤にて貼合わせ、長さ３８ｍｍ、輻１８ｍｍ、
高さ３３ｍｍの大きさとした。容器の内部に仕切り板５
を５枚設置し６つの部屋どうしで電解液の洩れがないよ
うにした。また、一対の分極性電極どうしが接触し短絡
しないように電解室内に厚み１ｍｍの短絡防止用突起６
を設けた。さらに容器上部にシリコンゴム製のパツキン
８をはさみ上蓋７と上蓋止めネジ１０にてネジ止めし電
解液の外部への漏洩がないようにした。両端の集電極は
上蓋上部に突出するようにしこれを端子９とした。The basic elements of six sets of electric double layer capacitors were connected in series by winding a conducting wire 3, in this case a gold-plated copper wire, around a collector electrode. Container 4 is made of vinyl chloride plates with a thickness of 1 mm bonded together with adhesive, and has a length of 38 mm and a radius of 18 mm.
The size was 33 mm in height. Partition plate 5 inside the container
Five panels were installed to prevent electrolyte from leaking between the six rooms. In addition, a short-circuit prevention protrusion 6 with a thickness of 1 mm is installed inside the electrolytic chamber to prevent a pair of polarizable electrodes from coming into contact with each other and causing a short circuit.
has been established. Furthermore, a gasket 8 made of silicone rubber was placed on the top of the container and screwed to the top lid 7 with a top lid set screw 10 to prevent leakage of the electrolyte to the outside. The collector electrodes at both ends were made to protrude above the top lid and were used as terminals 9.
（実施例２）
実施例１と同じのブロック状活性炭を用いて電気二重層
コンデンサを試作した。容量１．５Ｆの電気二重層コン
デンサを得るために、分極性電極のブロック状活性炭の
大きさを長さ３０ｍｍ、幅１５ｍｍ、厚み６ｍｍとした
。電解質に過塩素酸テトラブチルアンモニウムを用い、
溶媒にプロピレンカーボネイトとした電解液を用いた。(Example 2) An electric double layer capacitor was prototyped using the same block-shaped activated carbon as in Example 1. In order to obtain an electric double layer capacitor with a capacity of 1.5 F, the size of the block-shaped activated carbon of the polarizable electrode was set to 30 mm in length, 15 mm in width, and 6 mm in thickness. Using tetrabutylammonium perchlorate as the electrolyte,
An electrolytic solution containing propylene carbonate as a solvent was used.
有機溶媒の理論電解電圧（゛よ、水の１．２ｖに比べて
大きい。そこで、耐圧５ｖの電気二重層コンデンサを試
作するために、実施例１と同様の容器に電解液を含浸さ
せたブロック状活性炭を４枚配置した。電極の接続方法
、端子の接続方法、仕切り板の設置方法、封止方法も実
施例１と同様とした。その結果、容器の寸法は長さ３０
ｍｍ、幅１８ｍｍ、高さ３３ｍｍとなった。The theoretical electrolytic voltage of an organic solvent (1.2 V is higher than that of water. Therefore, in order to prototype an electric double layer capacitor with a withstand voltage of 5 V, a block similar to that in Example 1 was impregnated with an electrolytic solution. Four sheets of activated carbon were arranged.The electrode connection method, terminal connection method, partition plate installation method, and sealing method were also the same as in Example 1.As a result, the dimensions of the container were 30 mm in length.
mm, width 18mm, and height 33mm.
（参考例）
比較のため、参考例として分極性電極材料に活性炭粉末
を用いて本発明と同じ容量をもつ電気二重層コンデンサ
を作製した。直径３０ｍｍ径の孔を開けた厚み０．５ｍ
ｍの絶縁性ゴムと厚み０．２ｍｍの導電性ゴムを貼合わ
せ、孔に４４重量％硫酸でベースト化した活性炭を塗り
込んだものを作製し、片側の分極性電極とした。厚み０
．１ｍｍポリエチレン製セパレータを３２ｍｍ径に切り
出し、これの両側に分極性電極を配置し全体を加硫によ
り封止した。この電気二重層コンデンサの基本素子を６
枚積層し全体を金属缶に収納し電気二重層コンデンサと
した。収納後の寸法は直径４５ｍｍ、高さ１７ｍｍであ
った。(Reference Example) For comparison, an electric double layer capacitor having the same capacity as the present invention was fabricated using activated carbon powder as a polarizable electrode material. 0.5m thick with 30mm diameter hole
An insulating rubber of 0.2 mm thick and a conductive rubber of 0.2 mm thick were laminated together, and the holes were filled with activated carbon based on 44% by weight sulfuric acid to form a polarizable electrode on one side. Thickness 0
．． A 1 mm polyethylene separator was cut out to a diameter of 32 mm, polarizable electrodes were placed on both sides of the separator, and the whole was sealed by vulcanization. The basic elements of this electric double layer capacitor are 6
The layers were laminated and the whole was housed in a metal can to form an electric double layer capacitor. The dimensions after storage were 45 mm in diameter and 17 mm in height.
本発明と従来例による電気二重層コンデンサのコンデン
サの特性である容量値と等価直列抵抗を測定した。容量
値は電気二重層コンデンサのと直列に５０Ωの抵抗を入
れ、外部から５■の定電圧を印加しながら電気二重層コ
ンデンサの両端の電圧を測定し、ＣＲの時定数から容量
値を計算した。等価直列抵抗は電気二重層コンデンサに
ＩＫＨｚ、１０ｍＡの定電流を流し電気二重層コンデン
サの両端の電圧を測定することにより求めた。さらに本
発明と実施例による電気二重層コンデンサの占める体積
、重量を測定した。The capacitance value and equivalent series resistance, which are characteristics of electric double layer capacitors according to the present invention and conventional examples, were measured. The capacitance value was calculated by inserting a 50Ω resistor in series with the electric double layer capacitor, measuring the voltage across the electric double layer capacitor while applying a constant voltage of 5 Ω from the outside, and calculating the capacitance value from the time constant of CR. . The equivalent series resistance was determined by passing a constant current of IKHz and 10 mA through the electric double layer capacitor and measuring the voltage across the electric double layer capacitor. Furthermore, the volumes and weights occupied by the electric double layer capacitors according to the present invention and examples were measured.
本発明の実施例１、実施例２と従来例の電気二重層コン
デンサ特性を第１表に示す。Table 1 shows the electric double layer capacitor characteristics of Examples 1 and 2 of the present invention and the conventional example.
第１表
第１表から明らかなように、本発明と従来例の電気二重
層コンデンサの等価直列抵抗は本・発明の方が低くなっ
ていることがわかる。さらに、電気二重層コンデンサの
容積、重量についても本発明の方が小型で軽量に作るこ
とが可能である。Table 1 As is clear from Table 1, the equivalent series resistance of the electric double layer capacitors of the present invention and the conventional example is lower in the present invention. Furthermore, the volume and weight of the electric double layer capacitor of the present invention can be made smaller and lighter.
上記実施例において、集電極として金製ネジ、白金製ネ
ジ、グラファイト製ネジとした場合もほぼ同じ等個直列
抵抗１休積、重量を有していた。In the above embodiments, even when a gold screw, a platinum screw, or a graphite screw was used as the collector electrode, the same number of series resistors and the same weight were obtained.
集電極として金ペースト、カーボンペーストを用いた場
合もほぼ同じ等価直列抵抗、体積、重量を有していた。Even when gold paste or carbon paste was used as the collector electrode, the equivalent series resistance, volume, and weight were almost the same.
また、実施例２において電解質としてテトラアルキルア
ンモニウム塩、四フッ化ホウ素酸塩、溶媒にガンマブチ
ルラクトン、塩化チオニルを用いた場合にも第１表の結
果と同等の値が得られた。さらに、本発明による電気二
重層コンデンサは、特に数１０Ｆ以上の大容量品におい
て小型化、軽量化の長所を生かすことができる。Further, in Example 2, when a tetraalkylammonium salt and a tetrafluoroborate salt were used as an electrolyte, and gamma butyrlactone and thionyl chloride were used as a solvent, values equivalent to the results in Table 1 were obtained. Furthermore, the electric double layer capacitor according to the present invention can take advantage of the advantages of being smaller and lighter, especially in large capacitance products of several tens of F or more.
（発明の効果）
以上説明したように本発明によれば等価直列抵抗を低減
した小型で軽量な大容量をもつ電気二重層コンデンサが
得られる。(Effects of the Invention) As described above, according to the present invention, it is possible to obtain an electric double layer capacitor that is small, lightweight, and has a large capacity with reduced equivalent series resistance.
第１図は本発明による電気二重層コンデンサの図である
。
１・・・分極性電極（ブロック状活性炭多孔体）、２・
・・集電極（ネジ）、３・・・導線、４・・・容器、５
・・・仕切り板、６・・・短絡防止用突起、７・・・上
蓋、８・・・シリコンゴムパツキン、９−ｔ＝子、１０
・・・上蓋止めネジFIG. 1 is a diagram of an electric double layer capacitor according to the present invention. 1... Polarizable electrode (block-shaped activated carbon porous body), 2...
...Collector electrode (screw), 3...Conductor, 4...Container, 5
... Partition plate, 6... Short-circuit prevention protrusion, 7... Top lid, 8... Silicone rubber gasket, 9-t = child, 10
・・・Top cover fixing screw
Claims (2)
解液として硫酸水溶液を用いたことを特徴とする電気二
重層コンデンサ。(1) An electric double layer capacitor characterized in that a block-shaped activated carbon porous body is used as a polarizable electrode and a sulfuric acid aqueous solution is used as an electrolyte.
解液として、有機溶媒を用いたことを特徴とする電気二
重層コンデンサ。(2) An electric double layer capacitor characterized in that a block-shaped porous activated carbon material is used as a polarizable electrode and an organic solvent is used as an electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1223438A JPH0384915A (en) | 1989-08-29 | 1989-08-29 | Electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1223438A JPH0384915A (en) | 1989-08-29 | 1989-08-29 | Electric double layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0384915A true JPH0384915A (en) | 1991-04-10 |
Family
ID=16798148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1223438A Pending JPH0384915A (en) | 1989-08-29 | 1989-08-29 | Electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0384915A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0555086A (en) * | 1991-08-29 | 1993-03-05 | Nec Corp | Electric double layer capacitor and manufacture thereof |
| JP2008235825A (en) * | 2007-03-23 | 2008-10-02 | Nissan Diesel Motor Co Ltd | Capacitor device |
| US20100246095A1 (en) * | 2009-03-31 | 2010-09-30 | Tdk Corporation | Electric double layer capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920746B1 (en) * | 1970-01-17 | 1974-05-27 | ||
| JPS5541015A (en) * | 1978-09-18 | 1980-03-22 | Hitachi Ltd | Signal processing method in high speed facsimile |
| JPS5749488A (en) * | 1980-09-08 | 1982-03-23 | Mitsubishi Electric Corp | Lubricating device for bearing of sewing machine |
| JPS61203620A (en) * | 1985-03-07 | 1986-09-09 | 松下電器産業株式会社 | Electric double-layer capacitor |
| JPS6446913A (en) * | 1987-08-17 | 1989-02-21 | Kanebo Ltd | Electric double layer capacitor |
-
1989
- 1989-08-29 JP JP1223438A patent/JPH0384915A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920746B1 (en) * | 1970-01-17 | 1974-05-27 | ||
| JPS5541015A (en) * | 1978-09-18 | 1980-03-22 | Hitachi Ltd | Signal processing method in high speed facsimile |
| JPS5749488A (en) * | 1980-09-08 | 1982-03-23 | Mitsubishi Electric Corp | Lubricating device for bearing of sewing machine |
| JPS61203620A (en) * | 1985-03-07 | 1986-09-09 | 松下電器産業株式会社 | Electric double-layer capacitor |
| JPS6446913A (en) * | 1987-08-17 | 1989-02-21 | Kanebo Ltd | Electric double layer capacitor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0555086A (en) * | 1991-08-29 | 1993-03-05 | Nec Corp | Electric double layer capacitor and manufacture thereof |
| JP2008235825A (en) * | 2007-03-23 | 2008-10-02 | Nissan Diesel Motor Co Ltd | Capacitor device |
| US20100246095A1 (en) * | 2009-03-31 | 2010-09-30 | Tdk Corporation | Electric double layer capacitor |
| US8705225B2 (en) * | 2009-03-31 | 2014-04-22 | Tdk Corporation | Electric double layer capacitor with non-equal areas of the active material layers of the positive electrode and the negative electrode |
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