JPH04348511A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPH04348511A JPH04348511A JP12060391A JP12060391A JPH04348511A JP H04348511 A JPH04348511 A JP H04348511A JP 12060391 A JP12060391 A JP 12060391A JP 12060391 A JP12060391 A JP 12060391A JP H04348511 A JPH04348511 A JP H04348511A
- Authority
- JP
- Japan
- Prior art keywords
- separators
- carbon electrode
- activated carbon
- active carbon
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 51
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 239000002245 particle Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004073 vulcanization Methods 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
【０００１】0001
【産業上の利用分野】本発明は電気二重層コンデンサの
素子の構造に関し、特に電子伝導を阻止しイオン伝導を
提供するセパレータの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of an electric double layer capacitor element, and more particularly to the structure of a separator that blocks electron conduction and provides ionic conduction.
【０００２】0002
【従来の技術】従来の電気二重層コンデンサの素子は図
３に示すように、陽極の活性炭電極１ａと陰極の活性炭
電極１ｂ間に多孔性セパレータ２をそう入し、共にゴム
材から成るガスケット３と集電体４によりその加硫作用
を利用して封止していた。この従来素子に使用されてい
た多孔性セパレータ２の機能を図４を用いて説明する。2. Description of the Related Art As shown in FIG. 3, a conventional electric double layer capacitor element includes a porous separator 2 inserted between an anode activated carbon electrode 1a and a cathode activated carbon electrode 1b, and a gasket 3 made of a rubber material. The vulcanization effect of the current collector 4 was utilized for sealing. The function of the porous separator 2 used in this conventional element will be explained using FIG. 4.
【０００３】図４は、多孔性セパレータ２と、活性炭電
極１の接触状態を拡大視した概念図である。FIG. 4 is an enlarged conceptual diagram of the state of contact between the porous separator 2 and the activated carbon electrode 1.
【０００４】多孔性セパレータ２には、長径０．１μｍ
以下の極めて小さい孔５が無数に存在する。製品の性能
によって異なるが、多孔性セパレータ２の空孔率は３０
〜５０％の範囲にある。[0004] The porous separator 2 has a major diameter of 0.1 μm.
There are countless extremely small holes 5 as shown below. Although it varies depending on the performance of the product, the porosity of porous separator 2 is 30
~50%.
【０００５】この孔５は、活性炭電極１を構成する活性
炭粒６の径（１μｍ程度）より十分に小さいので、孔５
に隣接する陽極側の活性炭粒６ａと陰極側の活性炭粒６
ｂは、互に接触することができない。The holes 5 are sufficiently smaller than the diameter (about 1 μm) of the activated carbon particles 6 constituting the activated carbon electrode 1.
Activated carbon grains 6a on the anode side and activated carbon grains 6 on the cathode side adjacent to
b cannot contact each other.
【０００６】一方、陽極の活性炭電極１ａおよび陰極の
活性炭電極１ｂ中に含浸している電解液７は、多孔性セ
パレータ２の孔５に吸湿されるのでイオンのパスが孔５
中に形成される。このようにして、多孔性セパレータ２
の孔５は電子の伝導を阻止し、イオンだけを透過させる
。On the other hand, the electrolytic solution 7 impregnated in the activated carbon electrode 1a of the anode and the activated carbon electrode 1b of the cathode absorbs moisture into the pores 5 of the porous separator 2, so that the path of ions is limited to the pores 5.
formed inside. In this way, the porous separator 2
The holes 5 block electron conduction and allow only ions to pass through.
【０００７】[0007]
【発明が解決しようとする課題】この従来の素子に使用
していた多孔性セパレータは、空孔率が大き上に、非常
に薄い（５０μｍ）ので、破れ易すく、特に耐衝撃性（
機械的）が要求される環境において、信頼性上の問題点
があった。[Problems to be Solved by the Invention] The porous separator used in this conventional element has a large porosity and is very thin (50 μm), so it is easily torn and has poor impact resistance.
There were reliability problems in environments where mechanical performance was required.
【０００８】本発明の目的は、従来の欠点を除去しセパ
レータの機械的強度に対する信頼性の向上した電気二重
層コンデンサを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an electric double layer capacitor which eliminates the conventional drawbacks and has improved reliability in terms of mechanical strength of the separator.
【０００９】[0009]
【課題を解決するための手段】本発明の電気二重層コン
デンサは、活性炭電極面より小さい面積を有し、その円
弧部の径がガスケットの内径より大きい２枚の孔のない
セパレータを部分的に重ね合わせて、陰・陽極の活性炭
電極間にそう入することを特徴として構成される。[Means for Solving the Problems] The electric double layer capacitor of the present invention partially comprises two non-porous separators having an area smaller than the activated carbon electrode surface and the diameter of the circular arc portion being larger than the inner diameter of the gasket. The structure is characterized in that they are stacked one on top of the other and inserted between the cathode and anode activated carbon electrodes.
【００１０】0010
【実施例】次に、本発明について図面を参照して説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.
【００１１】図１は本発明の一実施例の電気二重層コン
デンサの素子断面図である。陽極の活性炭電極１ａと陰
極の活性炭電極１ｂ間に２枚のセパレータ８ａ，８ｂが
そう入されている。このセパレータ８は、孔が全くなく
、円形の一部を直線状に切り取った形状をしている。
また半円より大きい。FIG. 1 is a sectional view of an electric double layer capacitor according to an embodiment of the present invention. Two separators 8a and 8b are inserted between the anode activated carbon electrode 1a and the cathode activated carbon electrode 1b. This separator 8 has no holes at all, and has a shape in which a part of a circle is cut out in a straight line. It is also larger than a semicircle.
【００１２】図２はこの実施例の分解斜視図である。２
枚のセパレータ８ａと８ｂは直線部同志間で重ね合せて
、活性炭電極１の全面を覆うように搭載する。セパレー
タ８の円弧部の径がガスケット３の内径より大きいので
陰・陽極の活性炭電極１は完全に遮断され、互に接触で
きない。しかし、活性炭電極１に含浸している電解液は
２枚のセパレータ８ａと８ｂの重ね合せ部分の隙間を浸
透するのでこの隙間にイオンのパスが形成される。FIG. 2 is an exploded perspective view of this embodiment. 2
The separators 8a and 8b are stacked on top of each other between the straight parts and mounted so as to cover the entire surface of the activated carbon electrode 1. Since the diameter of the arc portion of the separator 8 is larger than the inner diameter of the gasket 3, the cathode and anode activated carbon electrodes 1 are completely blocked and cannot come into contact with each other. However, since the electrolytic solution impregnating the activated carbon electrode 1 permeates the gap between the overlapped portions of the two separators 8a and 8b, an ion path is formed in this gap.
【００１３】なお、２枚のセパレータ８ａと８ｂの重ね
合せ寸法は、実験の結果、セパレータ８の円弧部の径の
２０〜３０％が適正である。As a result of experiments, the appropriate overlapping dimension of the two separators 8a and 8b is 20 to 30% of the diameter of the arc portion of the separator 8.
【００１４】この値が大きいと、セパレータ８の重ね合
せ部分の隙間を電解液が十分に浸透できず抵抗分が大き
くなる。また小さいと、陰・陽極の活性炭電極１同志が
接触する可能性がある。[0014] If this value is large, the electrolytic solution will not be able to sufficiently penetrate the gap between the overlapping portions of the separators 8, and the resistance will increase. Moreover, if it is small, there is a possibility that the activated carbon electrodes 1 of the anode and cathode come into contact with each other.
【００１５】[0015]
【発明の効果】以上説明したように本発明は、孔がない
セパレータを使用しているので、機械的強度に対する信
頼性が向上するという効果を有する。As explained above, since the present invention uses a separator without holes, it has the effect of improving reliability in mechanical strength.
【図１】本発明の一実施例の電気二重層コンデンサ素子
の断面図である。FIG. 1 is a sectional view of an electric double layer capacitor element according to an embodiment of the present invention.
【図２】図１に示す本発明の一実施例の電気二重層コン
デンサ素子の分解斜視図である。FIG. 2 is an exploded perspective view of the electric double layer capacitor element of one embodiment of the present invention shown in FIG. 1;
【図３】従来の電気二重層コンデンサ素子の一例の断面
図である。FIG. 3 is a cross-sectional view of an example of a conventional electric double layer capacitor element.
【図４】多孔性セパレータと活性炭電極の接触状態を拡
大視した概念図である。FIG. 4 is an enlarged conceptual diagram of the state of contact between a porous separator and an activated carbon electrode.
１ 活性炭電極 １ａ 陽極の活性炭電極 １ｂ 陰極の活性炭電極 ２ 多孔性セパレータ ３ ガスケット ４ 集電体 ５ （多孔性セパレータの）孔 ６ 活性炭電極粒 ６ａ 陽極の活性炭電極粒 ６ｂ 陰極の活性炭電極粒 ７ 電解液 1 Activated carbon electrode 1a Anode activated carbon electrode 1b Cathode activated carbon electrode 2 Porous separator 3 Gasket 4 Current collector 5. Pores (of porous separator) 6 Activated carbon electrode particles 6a Activated carbon electrode particles of anode 6b Cathode activated carbon electrode particles 7 Electrolyte
Claims (1)
割された陰・陽極の活性炭電極を、非導電性ゴムからな
るガスケットと導電性ゴムからなる集電体で、加硫作用
を利用して封止する電気二重層コンデンサの素子におい
て、活性炭電極面より小さい面積を有し、その円弧部の
径がガスケットの内径より大きく、かつ孔のない２枚の
セパレータを部分的に重ね合せて、陰・陽極の活性炭電
極間に挿入することを特徴とする電気二重層コンデンサ
。Claim 1: A cathode and anode activated carbon electrode impregnated with an electrolytic solution and divided into two by a separator is vulcanized using a gasket made of non-conductive rubber and a current collector made of conductive rubber. In the element of the electric double layer capacitor to be sealed, two separators having an area smaller than the surface of the activated carbon electrode, the diameter of the arc portion of which is larger than the inner diameter of the gasket, and no holes are partially overlapped and sealed.・An electric double layer capacitor that is inserted between activated carbon electrodes of the anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12060391A JPH04348511A (en) | 1991-05-27 | 1991-05-27 | Electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12060391A JPH04348511A (en) | 1991-05-27 | 1991-05-27 | Electric double layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04348511A true JPH04348511A (en) | 1992-12-03 |
Family
ID=14790344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12060391A Pending JPH04348511A (en) | 1991-05-27 | 1991-05-27 | Electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04348511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110267740A1 (en) * | 2010-04-29 | 2011-11-03 | Shrisudersan Jayaraman | Packaging for electrochemically active materials, devices made therefrom, and methods of making the same |
| US10121607B2 (en) | 2013-08-22 | 2018-11-06 | Corning Incorporated | Ceramic separator for ultracapacitors |
-
1991
- 1991-05-27 JP JP12060391A patent/JPH04348511A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110267740A1 (en) * | 2010-04-29 | 2011-11-03 | Shrisudersan Jayaraman | Packaging for electrochemically active materials, devices made therefrom, and methods of making the same |
| US10121607B2 (en) | 2013-08-22 | 2018-11-06 | Corning Incorporated | Ceramic separator for ultracapacitors |
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