JPS61203618A - Electric double-layer capacitor - Google Patents
Electric double-layer capacitorInfo
- Publication number
- JPS61203618A JPS61203618A JP60045427A JP4542785A JPS61203618A JP S61203618 A JPS61203618 A JP S61203618A JP 60045427 A JP60045427 A JP 60045427A JP 4542785 A JP4542785 A JP 4542785A JP S61203618 A JPS61203618 A JP S61203618A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electric double
- layer capacitor
- polarizable
- conductive
- 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
Landscapes
- 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
この発明は、活性炭を分極性電極として用いる電気二重
層コンデンサに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an electric double layer capacitor using activated carbon as a polarizable electrode.
従来の技術
従来この種の電解液を利用した電気二重層コンデンサの
電極体は、活性炭粒子をプレス成型したシ、適当なバイ
ンダーと練合したものを集電体金属上に塗布して作られ
ていた。また、活性炭繊維を用いる場合には活性炭繊維
上にアルミニウムの溶射層を作り、ケース材料として強
度のあるステンレススチールからなる電極ケースとアル
ミニウムの溶射層をスポット溶接し電極体を作る方法が
知られていた。Conventional technology Conventionally, the electrode bodies of electric double layer capacitors using this type of electrolyte were made by press-molding activated carbon particles, kneading them with a suitable binder, and coating them on a metal current collector. Ta. In addition, when activated carbon fibers are used, a method is known in which a sprayed aluminum layer is formed on the activated carbon fibers, and the electrode body is made by spot welding the electrode case made of strong stainless steel as the case material and the sprayed aluminum layer. Ta.
発明が解決しようとする問題点
このような電気二重層コンデンサにおいては電示すよう
に二重層コンデンサに直列に入る内部抵抗の値が大きく
作用する。例えば定電圧で充電した場合、内部抵抗が大
きいため、充電が完了するのに時間を要する。又、大電
流で放電した場合も内部抵抗により電圧降下が大きく二
重層コンデンサがもつ静電容量が活かされない。など、
実用において活用できる範囲が狭いという問題があった
。Problems to be Solved by the Invention In such an electric double layer capacitor, as shown in the diagram, the value of the internal resistance connected in series with the double layer capacitor has a large effect. For example, when charging with a constant voltage, it takes time to complete charging because the internal resistance is large. Furthermore, even when discharging with a large current, the internal resistance causes a large voltage drop and the capacitance of the double layer capacitor is not utilized. Such,
There was a problem that the scope of practical use was narrow.
本発明はこのような問題点を解決するもので、内部抵抗
を低くすることを目的とするものである。The present invention solves these problems and aims to lower the internal resistance.
問題点を解決するだめの手段
そして上記問題点を解決する本発明の技術的な手段は、
分極性電極の全面を多孔体の導電材で被覆することによ
り導電電極を形成したものである。Means for solving the problems and technical means of the present invention for solving the above problems are as follows:
A conductive electrode is formed by covering the entire surface of a polarizable electrode with a porous conductive material.
作 用 この技術的手段による作用は次のようになる。For production The effect of this technical means is as follows.
分極性電極の片面に導電電極を形成した場合、片側から
のみの通電だが、全面に多孔体の導電電極を形成すると
全面からの通電となる。従って、充電又は放電をした場
合、第２図に示すように分極性電極の電気抵抗の小さい
部分Ｒ１，すなわち導電電極に近い部分の容量Ｃ１から
作用するので分極性電極の全面に導電電極を形成すると
電気抵抗の小さい部分の容量が増加し、充電速度そして
大電流の放電が可能となる。又、形成する導電電極は対
向電極との間で電荷が移動できるように、多孔体のもの
でなければいけない。When a conductive electrode is formed on one side of a polarizable electrode, current is passed only from one side, but when a porous conductive electrode is formed on the entire surface, current is passed from the entire surface. Therefore, when charging or discharging, as shown in Figure 2, the action is applied from the portion R1 of the polarizable electrode with low electrical resistance, that is, the capacitance C1 of the portion close to the conductive electrode, so that a conductive electrode is formed on the entire surface of the polarizable electrode. This increases the capacity of the portion with low electrical resistance, making it possible to charge faster and discharge with a larger current. Further, the conductive electrode to be formed must be porous so that charges can be transferred between it and the opposing electrode.
なお、導電電極を分極電極の片側のみに形成して同一の
効果を得るには分極性電極の厚みを薄くして導電電極と
の接触面を増加することによって得られる。しかし製品
寸法の制約からみて、むやみに大きくすることはできな
い。従ってこれらの制約条件からみて分極性電極の全面
に多孔体の導電電極を形成することが妥当である。Note that the same effect can be obtained by forming the conductive electrode on only one side of the polarized electrode by reducing the thickness of the polarizable electrode and increasing the contact surface with the conductive electrode. However, due to product size constraints, it is not possible to increase the size unnecessarily. Therefore, in view of these constraints, it is appropriate to form a porous conductive electrode on the entire surface of the polarizable electrode.
実施例
第１図に示すようにフェノール系活性炭繊維製の布（厚
さ０．５ｍ、比表面積２ｏｏｏｄ／ｑｒ ）からなる分
極性電極２を直径２漁の円板状に打ち抜き似で抜き取り
、その後プラズマ溶射法により全面に厚さ１００μｍの
多孔質のアルミニウム層３を形成し電極体を得る。EXAMPLE As shown in FIG. 1, a polarizable electrode 2 made of cloth made of phenolic activated carbon fiber (thickness 0.5 m, specific surface area 2 ood/qr) was punched out into a disk shape with a diameter of 2 mm, and then A porous aluminum layer 3 having a thickness of 100 μm is formed on the entire surface by plasma spraying to obtain an electrode body.
この電極体にプロピレンカーボネートにテトラエチルア
ンモニウムテトラフルオロボーレート１０ｗｔ％を加え
た電解液を含浸した後、間にセパレータ４を介在させて
重ね合わせ、さらにこれをステンレス製のケース１で挾
み、そしてそのケース１の開口端にガスケット６を配置
すると共に、かしめにより封口を行なう。This electrode body is impregnated with an electrolytic solution containing 10 wt% of tetraethylammonium tetrafluoroborate in propylene carbonate, and then stacked on top of each other with a separator 4 interposed between them, and then sandwiched between stainless steel cases 1. A gasket 6 is placed at the open end of the opening 1, and the opening is sealed by caulking.
第３図にこの発明民よる電気二重層コンデンサの２ｖ印
加時の充電特性を示す。又、比較のために分極性電極の
片面のみにアルミニウムを形成した従来の構造のものに
ついて試作したものの特性を示す。FIG. 3 shows the charging characteristics of the electric double layer capacitor made by this inventor when 2V is applied. For comparison, the characteristics of a prototype of a conventional structure in which aluminum is formed on only one side of the polarizable electrode are shown.
発明の効果
以上のようにこの発明は、導電電極が分極性電極に接す
る面積を効率よく増加させることによシ、急速充電をし
て大電流での放電が可能な低内部抵抗の電気二重層コン
デンサを容易に得ることができるものである。Effects of the Invention As described above, this invention effectively increases the area where the conductive electrode contacts the polarizable electrode, thereby creating an electric double layer with low internal resistance that enables rapid charging and discharging at a large current. Capacitors can be easily obtained.
第１図は本発明の電気二重層コンデンサの一実施例を示
す断面図、第２図は陽極側電極の説明図、第３図は本発
明品及び従来品の２ｖ印加時の充電特性を示す特性図、
第４図は従来の電気二重層コンデンサの等価回路図であ
る。
１・・・・・・ケース、２・・印・分極性電極、３・山
・・アルミニウム層、４・・・・・・セパレータ。
代理人の氏名 弁理士 中 尾 敏 男 はが１名４−
−２ノ１１−タ
第２図Fig. 1 is a cross-sectional view showing one embodiment of the electric double layer capacitor of the present invention, Fig. 2 is an explanatory diagram of the anode side electrode, and Fig. 3 shows the charging characteristics of the inventive product and the conventional product when 2V is applied. Characteristic diagram,
FIG. 4 is an equivalent circuit diagram of a conventional electric double layer capacitor. 1...Case, 2...Mark: Polarizable electrode, 3: Mountain: Aluminum layer, 4...Separator. Name of agent: Patent attorney Toshio Nakao, 1 person, 4-
-2 No. 11-ta Figure 2
Claims (1)
導電電極を形成し、かつこの分極性電極に電解液を介し
て対向電極を配置して素子とし、この素子を２つで対を
なす一対の金属ケース内に収納し、その金属ケースそれ
ぞれに分極性電極上の導電電極を電気的に接触させるこ
とにより構成され、かつ導電電極を分極性電極の全面を
多孔体の導電材で被覆して構成したことを特徴とする電
気二重層コンデンサ。A conductive electrode is formed on one side of a polarizable electrode made of activated carbon fiber, activated carbon powder, etc., and a counter electrode is placed on this polarizable electrode via an electrolyte to form an element. The conductive electrode is housed in a metal case, and the conductive electrode on the polarizable electrode is electrically contacted with each of the metal cases, and the conductive electrode is covered with a porous conductive material on the entire surface of the polarizable electrode. An electric double layer capacitor characterized by the following structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045427A JPS61203618A (en) | 1985-03-07 | 1985-03-07 | Electric double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045427A JPS61203618A (en) | 1985-03-07 | 1985-03-07 | Electric double-layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61203618A true JPS61203618A (en) | 1986-09-09 |
Family
ID=12718987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60045427A Pending JPS61203618A (en) | 1985-03-07 | 1985-03-07 | Electric double-layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61203618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005013299A1 (en) * | 2003-07-07 | 2005-02-10 | Eamex Corporation | Capacitor and method for manufacturing same |
| JP2012129477A (en) * | 2010-12-17 | 2012-07-05 | Ud Trucks Corp | Power storage cell |
-
1985
- 1985-03-07 JP JP60045427A patent/JPS61203618A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005013299A1 (en) * | 2003-07-07 | 2005-02-10 | Eamex Corporation | Capacitor and method for manufacturing same |
| JP2012129477A (en) * | 2010-12-17 | 2012-07-05 | Ud Trucks Corp | Power storage cell |
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