JPH01321620A - Carbon paste electrode - Google Patents
Carbon paste electrodeInfo
- Publication number
- JPH01321620A JPH01321620A JP63155483A JP15548388A JPH01321620A JP H01321620 A JPH01321620 A JP H01321620A JP 63155483 A JP63155483 A JP 63155483A JP 15548388 A JP15548388 A JP 15548388A JP H01321620 A JPH01321620 A JP H01321620A
- Authority
- JP
- Japan
- Prior art keywords
- electric double
- activated carbon
- layer capacitor
- electrode
- 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、カーボンペースト電極に関し、特に電気二重
層コンデンサ用のカーボンペースト電極に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a carbon paste electrode, and particularly to a carbon paste electrode for an electric double layer capacitor.
一般にカーボンペースト電極を用いた電気二重層コンデ
ンサの素子（以下基本セルと称す）は、第４図に示すよ
うにイオン透過性でかつ非電子伝導性の多孔性セパレー
タ５を介して分離された一対の粉末活性炭と電解質溶液
から成るカーボンペースト電極３ｂと前記カーボンペー
スト電極３ｂを介して配置されたイオン不浸透性の導電
性セパレータ２と前記一対のカーボンペースト電極の周
辺部で前記導電性セパレータ２０間に介在するカーボン
ペースト電極３ｂを保持し、かつ外界から遮断するため
に設けられた非導電性ガスケット４よりなる構造を有す
る。この基本セル１ｂの電極となるカーボンペースト電
極３ｂは、従来、粉末活性炭と電解質溶液とを混合した
ものとなっていた。In general, an electric double layer capacitor element (hereinafter referred to as a basic cell) using carbon paste electrodes consists of a pair of cells separated by a porous separator 5 that is permeable to ions and non-electronic conductive, as shown in FIG. A carbon paste electrode 3b made of powdered activated carbon and an electrolyte solution, an ion-impermeable conductive separator 2 disposed via the carbon paste electrode 3b, and a conductive separator 20 at the periphery of the pair of carbon paste electrodes. It has a structure consisting of a non-conductive gasket 4 provided to hold the carbon paste electrode 3b interposed therein and isolate it from the outside world. Conventionally, the carbon paste electrode 3b serving as the electrode of the basic cell 1b has been made of a mixture of powdered activated carbon and an electrolyte solution.
さらに電気二重層コンデンサは第５図に示、すように使
用電圧に応じて基本セル１ｂを必要枚数積層した積層体
６を、金属の外装ケース８と基本セル１ｂの側面が金属
の外装ケース８と短絡するのを防ぐための絶縁ケース７
とでケーシング（電極板９を介して電極１０を引き出す
構造を有する。Furthermore, as shown in FIG. 5, the electric double layer capacitor is made of a laminate 6 in which a required number of basic cells 1b are stacked according to the voltage used, an exterior case 8 made of metal, and an exterior case 8 whose sides of the basic cells 1b are made of metal. Insulating case 7 to prevent short circuit with
It has a structure in which the electrode 10 is drawn out through the casing (electrode plate 9).
電気二重層コンデンサの等個直列抵抗（以下ＥＳＲと称
す）は活性炭、導電性セパレータ、多孔性セパレータ等
の材料抵抗と活性炭粒子間、基本セル間等の接触抵抗よ
り構成される。The equal series resistance (hereinafter referred to as ESR) of an electric double layer capacitor is composed of material resistance such as activated carbon, conductive separator, porous separator, etc., and contact resistance between activated carbon particles, between basic cells, etc.
電気二重層コンデンサは前記の接触抵抗を減らすために
基本セル１ｂの積層対６に上下から１〜１００ｋｇ／ｃ
ｏ！の圧力を加え、これを保持した状態で外装ケース８
の開口端を内側に折り曲げてかしめ封口している。The electric double layer capacitor is applied to the laminated pair 6 of the basic cell 1b at 1 to 100 kg/cm from above and below in order to reduce the contact resistance mentioned above.
o! Apply pressure to the outer case 8 and hold it.
The open end is bent inward and caulked closed.
上述した従来の電気二重層コンデンサは、粉末活性炭の
比抵抗が大きく、そのため電気二重層コンデンサのＥＳ
Ｒが大きい。このため充電後、大電流で放電する場合、
電気二重層コンデンサのＥＳＲにより不要な電圧降下を
引き起こすという欠点を有する。In the conventional electric double layer capacitor mentioned above, the specific resistance of powdered activated carbon is high, so the ES of the electric double layer capacitor is
R is large. Therefore, when discharging with a large current after charging,
It has the disadvantage of causing an unnecessary voltage drop due to the ESR of the electric double layer capacitor.
本発明は、粉末活性炭と電解質溶液との混合物を電極と
する電気二重層コンデンサ用カーボンペースト電極にお
いて前記粉末活性炭を熱処理したことと、熱処理の温度
を１０００℃以上としたという特徴を有する。The present invention is characterized in that, in a carbon paste electrode for an electric double layer capacitor using a mixture of powdered activated carbon and an electrolyte solution as an electrode, the powdered activated carbon is heat treated and the temperature of the heat treatment is 1000° C. or higher.
次に本発明について第２図を参照して説明する。 Next, the present invention will be explained with reference to FIG.
厚さ０．５ ｍｍの未加硫の非導電性ゴムシートを同心
円上に内径６．０ｍｍ、外径１１．０ｍｍで打抜きリン
グ状シートとする。次に未加硫の導電性ゴムシートを直
径１１．０ｍｍに打抜き前述のリング状シートに同心円
状に配置し、圧着して凹部を形成する。An unvulcanized non-conductive rubber sheet with a thickness of 0.5 mm is punched concentrically into a ring-shaped sheet with an inner diameter of 6.0 mm and an outer diameter of 11.0 mm. Next, an unvulcanized conductive rubber sheet is punched out to a diameter of 11.0 mm, placed concentrically on the ring-shaped sheet, and pressed to form a recess.
この凹部に３０重量％硫酸と従来の粉末活性炭、８００
℃、１０００℃、１３００℃、１６００℃でそれぞれ２
時間熱処理した粉末活性炭を混合したペースト電極３ａ
を充填して５水準のペースト充填シートを得る。In this recess, 30% by weight sulfuric acid and conventional powdered activated carbon, 800%
℃, 1000℃, 1300℃, 1600℃ respectively
Paste electrode 3a mixed with time-heat-treated powdered activated carbon
to obtain a 5-level paste filling sheet.
次にこのペースト充填シートの一対をカーボンペースト
電極３ａが相対する方向でポリプロピレン製の厚さ２５
μｍ、直径８．０ｍｍの多孔性セパレータ５を介して同
心円上に配置合体した後、４ｋｇ／ａｎ！の圧力を上下
方向より加え、この圧力を保持した状態で１２５”５℃
の温度雰囲気中に３時間放置し、未加硫の非導電性ゴム
シート間及び未加硫の非導電性ゴムシートと未加硫の導
電性ゴムシートの間を密着して（本発明例の）基本セル
１ａを得た。 □
次に第３図のように本発明の基本セル１ａを８枚直列に
積層し、積層体６とした後、金属性外装ケース８に収納
し、積層体６上に電極板９を配置した絶縁ケース７を被
せ、電極板９．絶縁ケース７を介して積層体６に３０ｋ
ｇ／ｃｉの機械的圧力を加え、この状態を保持したまま
外装ケース８の上端をかしめ封口して熱処理なし、８０
０℃、１０００℃。Next, a pair of these paste-filled sheets are made of polypropylene with a thickness of 25 mm in the direction in which the carbon paste electrodes 3a face each other.
4 kg/an! Apply pressure from above and below and maintain this pressure at 125"5℃.
for 3 hours in an atmosphere at a temperature of ) A basic cell 1a was obtained. □ Next, as shown in FIG. 3, eight basic cells 1a of the present invention were stacked in series to form a laminate 6, which was then housed in a metal exterior case 8, and an electrode plate 9 was placed on the laminate 6. Cover with the insulating case 7 and place the electrode plate 9. 30k to the laminate 6 via the insulating case 7
A mechanical pressure of g/ci was applied, and while maintaining this state, the upper end of the outer case 8 was caulked and sealed, without heat treatment, 80 g/ci.
0℃, 1000℃.
１３００℃、１６００℃でそれぞれ２時間熱処理した粉
末活性炭を用いた動作電圧５ｖの電気二重層コンデンサ
を５水準得た。Five levels of electric double layer capacitors with an operating voltage of 5 V were obtained using powdered activated carbon heat-treated at 1300° C. and 1600° C. for 2 hours, respectively.
第１図に粉末活性炭を熱処理した時の温度と電気二重層
コンデンサ４０個のＥＳＲの平均値との関係を示した。FIG. 1 shows the relationship between the temperature at which powdered activated carbon was heat-treated and the average value of ESR of 40 electric double layer capacitors.
第１図の横軸は粉末活性炭を熱処理した時の温度である
。縦軸は、電気二重層コンデンサのＥＳＲである。粉末
活性炭の熱処理の温度を上げていくと電気二重層コンデ
ンサのＥＳＲは、１０００℃以上で低下し、従来の約１
／２まで小さくなる。The horizontal axis in FIG. 1 is the temperature when the powdered activated carbon is heat treated. The vertical axis is the ESR of the electric double layer capacitor. As the heat treatment temperature of powdered activated carbon is increased, the ESR of electric double layer capacitors decreases above 1000°C, and is about 1
/2.
カーボンペースト電極に熱処理を加えた粉末活性炭を用
いることにより従来より低いＥＳＲの電気二重層コンデ
ンサを実現できた。By using heat-treated powdered activated carbon for carbon paste electrodes, we were able to realize an electric double layer capacitor with lower ESR than conventional ones.
また、本発明の電気二重層コンデンサは、表−１に示す
ように、ＥＳＲ以外の特性は従来と同等である。Further, as shown in Table 1, the electric double layer capacitor of the present invention has characteristics other than ESR that are equivalent to conventional ones.
表−１
〔発明の効果〕
以上説明したように本発明は、カーボンペースト電極の
粉末活性炭を熱処理することにより、電気二重層コンデ
ンサのＥＳＲを低くできる効果がある。Table 1 [Effects of the Invention] As explained above, the present invention has the effect of lowering the ESR of an electric double layer capacitor by heat-treating powdered activated carbon of a carbon paste electrode.
このように本発明のカーボンペースト電極は、工業的価
値大なるものがある。As described above, the carbon paste electrode of the present invention has great industrial value.
【図面の簡単な説明】
第１図は本発明により得られた電気二重層コンデンサに
おいて粉末活性炭の熱処理温度と電気二重層コンデンサ
のＥＳＲとの関係を示すグラフであり、サンプル数４０
個の平均値をプロットした図、第２図は本発明のカーボ
ンペースト電極を適用した電気二重層コンデンサの基本
セルの縦断面図、第３図は本発明の基本セルより成る電
気二重層コンデンサの縦断面図、第４図は従来の電気二
重層コンデンサの基本セルの縦断面図、第５図は従来の
基本セルより成る電気二重層コンデンサの縦断面図であ
る。
１ａ・・・・・・本発明の基本セル、１ｂ・・・・・・
従来の基本セル、２・・・・・・導電性セパレータ、３
ａ・・・・・・本発明のカーボンペースト電極、３ｂ・
・・・・・従来のカーボンペースト電極、４・・・・・
・非導電性ガスケット、５・・・・・・多孔性セパレー
タ、６・・・・・・積層体、７・・・・・・絶縁ケース
、訃・・・・・金属外装ケース、９・・・・・・電極板
、１０・・・・・・電極。
代理人 弁理士 内 原 音
ＥＬＫ（ｆ２）
第１区
々本全朗／）鹿本仁ル
、夕
５ｚ図
万３図[Brief Description of the Drawings] Fig. 1 is a graph showing the relationship between the heat treatment temperature of powdered activated carbon and the ESR of the electric double layer capacitor obtained by the present invention, and the number of samples is 40.
Fig. 2 is a vertical cross-sectional view of a basic cell of an electric double layer capacitor to which the carbon paste electrode of the present invention is applied, and Fig. 3 is a diagram of a basic cell of an electric double layer capacitor made of the basic cell of the present invention. FIG. 4 is a vertical cross-sectional view of a basic cell of a conventional electric double layer capacitor, and FIG. 5 is a vertical cross-sectional view of an electric double layer capacitor composed of a conventional basic cell. 1a... Basic cell of the present invention, 1b...
Conventional basic cell, 2... Conductive separator, 3
a...Carbon paste electrode of the present invention, 3b.
...Conventional carbon paste electrode, 4...
・Non-conductive gasket, 5... Porous separator, 6... Laminate, 7... Insulating case, Death... Metal exterior case, 9... ...Electrode plate, 10... Electrode. Agent Patent Attorney Uchihara Oto ELK (f2) 1st Ward Zenro Hon/) Jinru Kamoto, Evening 5z Figure Man 3 Figure
Claims (2)
電気二重層コンデンサ用カーボンペースト電極において
、前記粉末活性炭を熱処理したことを特徴とするカーボ
ンペースト電極。(1) A carbon paste electrode for an electric double layer capacitor using a mixture of powdered activated carbon and an electrolyte solution as an electrode, characterized in that the powdered activated carbon is heat-treated.
たことを特徴とするカーボンペースト電極。(2) A carbon paste electrode characterized in that the powdered activated carbon is heat-treated at a temperature of 1000°C or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63155483A JP2666848B2 (en) | 1988-06-22 | 1988-06-22 | Carbon paste electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63155483A JP2666848B2 (en) | 1988-06-22 | 1988-06-22 | Carbon paste electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01321620A true JPH01321620A (en) | 1989-12-27 |
| JP2666848B2 JP2666848B2 (en) | 1997-10-22 |
Family
ID=15607033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63155483A Expired - Lifetime JP2666848B2 (en) | 1988-06-22 | 1988-06-22 | Carbon paste electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2666848B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0443274A2 (en) * | 1989-12-28 | 1991-08-28 | Isuzu Motors Limited | Method of manufacturing a polarized electrode for an electric double layer capacitor |
| US5948329A (en) * | 1995-04-27 | 1999-09-07 | Nippon Sanso Corporation | Manufacturing method for carbon material for electrical double layer capacitor |
| US6013208A (en) * | 1997-05-13 | 2000-01-11 | Nippon Sanso Corporation | Manufacturing method for carbon material for electrical double layer capacitor |
| US6475461B1 (en) | 1995-03-30 | 2002-11-05 | Nippon Sanso Corporation | Porous carbonaceous material, manufacturing method therefor and use thereof |
| US7091156B2 (en) | 2000-05-09 | 2006-08-15 | Mitsubishi Chemical Corporation | Activated carbon for use in electric double layer capacitors |
| CN111221363A (en) * | 2020-01-16 | 2020-06-02 | 宁波市江北九方和荣电气有限公司 | Locomotive capacitor online operation temperature detection method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189162A (en) * | 1984-03-07 | 1985-09-26 | Matsushita Electric Ind Co Ltd | Manufacture of polarization electrode |
-
1988
- 1988-06-22 JP JP63155483A patent/JP2666848B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60189162A (en) * | 1984-03-07 | 1985-09-26 | Matsushita Electric Ind Co Ltd | Manufacture of polarization electrode |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0443274A2 (en) * | 1989-12-28 | 1991-08-28 | Isuzu Motors Limited | Method of manufacturing a polarized electrode for an electric double layer capacitor |
| US6475461B1 (en) | 1995-03-30 | 2002-11-05 | Nippon Sanso Corporation | Porous carbonaceous material, manufacturing method therefor and use thereof |
| US5948329A (en) * | 1995-04-27 | 1999-09-07 | Nippon Sanso Corporation | Manufacturing method for carbon material for electrical double layer capacitor |
| US6013208A (en) * | 1997-05-13 | 2000-01-11 | Nippon Sanso Corporation | Manufacturing method for carbon material for electrical double layer capacitor |
| US7091156B2 (en) | 2000-05-09 | 2006-08-15 | Mitsubishi Chemical Corporation | Activated carbon for use in electric double layer capacitors |
| US7625839B2 (en) | 2000-05-09 | 2009-12-01 | Mitsubishi Chemical Corporation | Activated carbon for use in electric double layer capacitors |
| CN111221363A (en) * | 2020-01-16 | 2020-06-02 | 宁波市江北九方和荣电气有限公司 | Locomotive capacitor online operation temperature detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2666848B2 (en) | 1997-10-22 |
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