JPS6258648B2 - - Google Patents
Info
- Publication number
- JPS6258648B2 JPS6258648B2 JP57160066A JP16006682A JPS6258648B2 JP S6258648 B2 JPS6258648 B2 JP S6258648B2 JP 57160066 A JP57160066 A JP 57160066A JP 16006682 A JP16006682 A JP 16006682A JP S6258648 B2 JPS6258648 B2 JP S6258648B2
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- carbon powder
- pair
- double layer
- electric double
- 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.)
- Expired
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000008151 electrolyte solution Substances 0.000 description 7
- 238000007639 printing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004804 winding 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)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
本発明は、電気二重層コンデンサの製造方法に
関する。
ペースト電極を用いた電気二重層コンデンサ
は、米国特許第3536963号明細書等にみられるよ
うに第１図のような断面構造からなる。第１図に
おいて、１は電子伝導性で、かつイオンに対して
不浸透である導電性セパレータ、２は活性炭粉末
と電解質溶液からなるペースト電極、３は電極間
の導通を防止するために設けられるイオン透過性
で、電子伝導を阻止する多孔性セパレータ、４は
ペースト電極を保持し、外界から遮断するために
設けられる非導電性ガスケツトである。
この種の電気二重層コンデンサ（以下、基本セ
ルと呼ぶ。）においては、従来活性炭粉末と電解
質溶液を混合したペースト電極を用いて、ドクタ
ーナイフ工法でペースト電極を印刷し、電極を形
成させていた。
このペースト電極においては、ペースト電極を
調製するさいに、ペースト状になりにくかつた
り、ペースト状になつても時間が経過するにした
がつて、活性炭粉末と電解質溶液が分離するとい
つた現象がしばしば生起した。そのため、ペース
ト電極をドクター・ナイフ工法で印刷するさい
に、ペースト電極が飛散したり、電解質溶液が漏
れたりすることがあり、作業性が良好ではなかつ
た。また、前述の従来工法により製造した電気二
重層コンデンサは、ペースト電極中の活性炭粉末
と多孔性セパレータとの接触性が悪いため、等価
直列抵抗（ESR）が高いという欠点があつた。
本発明は上記欠点を改善する製造方法を提供す
ることを目的とする。
本発明の電気二重層コンデンサは、静電吸着印
刷によつて活性炭粉末を非電子伝導性の多孔性セ
パレータに配置させたことを特徴とする。
以下、本発明の一実施例を従来例と比較して第
１図、第２図および第１表を参照にした詳述す
る。
実施例
比表面積が約1300m2／ｇ（BET法）、粒径325
メツシユ以下の活性炭粉末８を、活性炭粉末供給
タンク１１からポンプ１０を使用して、第２図に
みられるような超音波振動子５を外周に密接して
装備したノズル６の開口部６ａを通して、右側に
配設された一対の荷電電極７，７に向かつて射出
する。射出されたこの活性炭粉末８は、荷電電極
７，７の間で正または負に帯電された後、さらに
右側に進行し、偏向電極９，９を通過して、活性
炭粉末８とは逆極性に帯電して張設された多孔性
セパレータ３上に静電吸着して印刷される。偏向
電極９，９を通過した活性炭粉末８のうち帯電不
足状態の活性炭粉末および余剰の活性炭粉末８ａ
は、上方が開口された箱状の活性炭粉末回収装置
１２内に落下し、回収される。また、多孔性セパ
レータ３は、第２図の矢印で示した多孔性セパレ
ータ巻取り方向に移動して、活性炭粉末８を静電
吸着した状態で印刷させた後、ただちに巻取りド
ラム（図示省略）の回転によつて、電解質溶液と
して30wt％硫酸水溶液を用いた電解質溶液供給
装置１３に送られ、多孔性セパレータ３上にペー
スト電極２が形成される。すなわち、第１図に示
した基本セルのペースト電極２が多孔性セパレー
タ３の片面に形成された状態になる。多孔性セパ
レータのもう一方の面のペースト電極の形成は、
上述した本発明工法をもう一方の面について再度
実施することにより達せられる。
前述の本発明工法で得た電気二重層コンデンサ
と従来工法例による電気二重層コンデンサとの
ESRと基本セルの厚さとを比較したものが第１
表である。なお、第１表の数値は、各々50個の電
気二重層コンデンサについて測定した値の平均値
を表している。
The present invention relates to a method for manufacturing an electric double layer capacitor. An electric double layer capacitor using paste electrodes has a cross-sectional structure as shown in FIG. 1, as seen in US Pat. No. 3,536,963. In Figure 1, 1 is a conductive separator that is electronically conductive and impermeable to ions, 2 is a paste electrode made of activated carbon powder and an electrolyte solution, and 3 is provided to prevent electrical conduction between the electrodes. A porous separator 4 that is permeable to ions and blocks electron conduction is a non-conductive gasket provided to hold the paste electrode and isolate it from the outside world. Conventionally, in this type of electric double layer capacitor (hereinafter referred to as a basic cell), a paste electrode made by mixing activated carbon powder and an electrolyte solution was used, and the paste electrode was printed using the doctor knife method to form the electrode. . When preparing this paste electrode, there is a phenomenon that it is difficult to form a paste, or even if it becomes a paste, the activated carbon powder and electrolyte solution separate over time. occurred often. Therefore, when printing paste electrodes using the doctor knife method, the paste electrodes may scatter or the electrolyte solution may leak, resulting in poor workability. Furthermore, the electric double layer capacitor manufactured by the conventional method described above had a drawback of high equivalent series resistance (ESR) due to poor contact between the activated carbon powder in the paste electrode and the porous separator. An object of the present invention is to provide a manufacturing method that improves the above-mentioned drawbacks. The electric double layer capacitor of the present invention is characterized in that activated carbon powder is arranged on a non-electronically conductive porous separator by electrostatic adsorption printing. Hereinafter, one embodiment of the present invention will be described in detail in comparison with a conventional example with reference to FIGS. 1, 2, and Table 1. Example Specific surface area is approximately 1300 m 2 /g (BET method), particle size 325
Using a pump 10, activated carbon powder 8 of a size smaller than a mesh is passed from an activated carbon powder supply tank 11 through an opening 6a of a nozzle 6 equipped with an ultrasonic vibrator 5 close to the outer periphery as shown in FIG. It is ejected toward a pair of charging electrodes 7, 7 arranged on the right side. The injected activated carbon powder 8 is charged positively or negatively between the charging electrodes 7, 7, and then advances further to the right, passes through the deflection electrodes 9, 9, and has a polarity opposite to that of the activated carbon powder 8. Printing is carried out by electrostatic adsorption onto the charged and stretched porous separator 3. Of the activated carbon powder 8 that has passed through the deflection electrodes 9, 9, insufficiently charged activated carbon powder and surplus activated carbon powder 8a
falls into a box-shaped activated carbon powder recovery device 12 with an open top and is recovered. Further, the porous separator 3 is moved in the porous separator winding direction shown by the arrow in FIG. As a result of the rotation, the electrolyte solution is sent to an electrolyte solution supply device 13 using a 30 wt % sulfuric acid aqueous solution, and a paste electrode 2 is formed on the porous separator 3 . That is, the paste electrode 2 of the basic cell shown in FIG. 1 is formed on one side of the porous separator 3. The formation of the paste electrode on the other side of the porous separator is
This can be achieved by repeating the above-described construction method of the present invention on the other side. The difference between the electric double layer capacitor obtained by the method of the present invention described above and the electric double layer capacitor obtained by the conventional method
The first comparison is between ESR and basic cell thickness.
It is a table. Note that the values in Table 1 represent the average values of values measured for 50 electric double layer capacitors.
【表】
第１表によれば、本発明による電気二重層コン
デンサESRは、従来工法例と比較して著しく低
いことがわかる。また、基本セルの厚さについて
も、本発明例のほうが従来工法例と比較して極め
て薄いことがわかる。
以上、本発明による電気二重層コンデンサは、
(i) 静電吸着による印刷手段を用いることがで
き、製造方法が非常に簡単になる。
(ii) ESRが低く、かつ小型化できるので、従来
のアルミ電解コンデンサの代替になる。
(iii) 設計パターンをフアクシミリ等で遠隔地に直
送して生産することができるので、設計から生
産までに要するリードタイムが極めて短かくて
すむ。など、電気二重層コンデンサの特性の向
上および量産性の向上に顕著な効果があり、そ
の工業的価値は大なるものである。[Table] According to Table 1, it can be seen that the ESR of the electric double layer capacitor according to the present invention is significantly lower than that of the conventional construction method. Furthermore, regarding the thickness of the basic cell, it can be seen that the example of the present invention is extremely thinner than the example of the conventional construction method. As described above, the electric double layer capacitor according to the present invention can be manufactured using (i) printing means using electrostatic adsorption, and the manufacturing method becomes very simple. (ii) It has a low ESR and can be miniaturized, making it an alternative to conventional aluminum electrolytic capacitors. (iii) Since the design pattern can be directly sent to a remote location via facsimile or the like for production, the lead time required from design to production can be extremely short. It has a remarkable effect on improving the characteristics and mass productivity of electric double layer capacitors, and its industrial value is great.
第１図は、従来のペースト電極を用いた電気二
重層コンデンサの断面図。第２図は、本発明によ
る電気二重層コンデンサの製造の一実施例を示す
図。
１……導電性セパレータ、２……ペースト電
極、３……多孔性セパレータ、４……非導電性ガ
スケツト、５……超音波振動子、６……ノズル、
６ａ……ノズル６の開口部、７……荷電電極、８
……活性炭粉末、８ａ……帯電不足状態の活性炭
粉末および余剰の活性炭粉末、９……偏向電極、
１０……ポンプ、１１……活性炭粉末供給タン
ク、１２……活性炭粉末回収装置、１３……電解
質溶液供給装置。
FIG. 1 is a cross-sectional view of an electric double layer capacitor using conventional paste electrodes. FIG. 2 is a diagram showing an example of manufacturing an electric double layer capacitor according to the present invention. DESCRIPTION OF SYMBOLS 1... Conductive separator, 2... Paste electrode, 3... Porous separator, 4... Non-conductive gasket, 5... Ultrasonic vibrator, 6... Nozzle,
6a...opening of nozzle 6, 7...charging electrode, 8
...Activated carbon powder, 8a... Undercharged activated carbon powder and surplus activated carbon powder, 9... Deflection electrode,
10... Pump, 11... Activated carbon powder supply tank, 12... Activated carbon powder recovery device, 13... Electrolyte solution supply device.
Claims (1)
離された一対の活性炭粉末と電解質からなるペー
スト電極層と、該一対の電極層を介して配置され
た一対の導電層と、該一対の電極層の周端部で該
導電層の間に介在する絶縁部材とを含んで構成さ
れる電気二重層コンデンサにおいて、該活性炭粉
末を一対の荷電電極間に噴射し、正負いずれか一
方の極性に帯電させる工程と、前記の帯電させた
活性炭粉末を一方向に偏向させて、噴射進行方向
前方に配置した前記活性炭粉末とは逆極性に帯電
して張設させた多孔性セパレータ面に静電吸着さ
せる工程とを有することを特徴とする電気二重層
コンデンサの製造方法。1 A pair of paste electrode layers made of activated carbon powder and an electrolyte separated through a non-electronically conductive porous separator, a pair of conductive layers arranged through the pair of electrode layers, and the pair of electrode layers. and an insulating member interposed between the conductive layers at the peripheral edge of the electric double layer capacitor, the activated carbon powder is injected between a pair of charging electrodes to charge the activated carbon powder to either positive or negative polarity. and a step of deflecting the charged activated carbon powder in one direction and electrostatically adsorbing it to the surface of a stretched porous separator charged with a polarity opposite to that of the activated carbon powder placed in front of the direction of the injection progress. A method for manufacturing an electric double layer capacitor, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57160066A JPS5948918A (en) | 1982-09-14 | 1982-09-14 | Method of producing electric double layer condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57160066A JPS5948918A (en) | 1982-09-14 | 1982-09-14 | Method of producing electric double layer condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5948918A JPS5948918A (en) | 1984-03-21 |
| JPS6258648B2 true JPS6258648B2 (en) | 1987-12-07 |
Family
ID=15707152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57160066A Granted JPS5948918A (en) | 1982-09-14 | 1982-09-14 | Method of producing electric double layer condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948918A (en) |
-
1982
- 1982-09-14 JP JP57160066A patent/JPS5948918A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5948918A (en) | 1984-03-21 |
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