JPH02135719A - Electrolyte for electrical-double-layer capacitor - Google Patents
Electrolyte for electrical-double-layer capacitorInfo
- Publication number
- JPH02135719A JPH02135719A JP63290482A JP29048288A JPH02135719A JP H02135719 A JPH02135719 A JP H02135719A JP 63290482 A JP63290482 A JP 63290482A JP 29048288 A JP29048288 A JP 29048288A JP H02135719 A JPH02135719 A JP H02135719A
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- double
- layer capacitor
- electrical
- propylene carbonate
- 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 14
- 239000003792 electrolyte Substances 0.000 title description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 11
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005486 organic electrolyte Substances 0.000 claims abstract description 5
- 239000003463 adsorbent Substances 0.000 claims description 6
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract description 4
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 abstract description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000292 calcium oxide Substances 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 abstract description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 abstract description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000395 magnesium oxide Substances 0.000 abstract description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 4
- 238000001179 sorption measurement Methods 0.000 abstract 4
- 239000004615 ingredient Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002152 aqueous-organic solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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）
本願北門は有機系の電気二重層コンデンサ用電解液に関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an organic electrolyte for electric double layer capacitors.
（従来の技術）
電気二重層コンデンサには通常、電解質が含まれている
。(Prior Art) Electric double layer capacitors usually contain an electrolyte.
この電解質としては水溶液系、有機溶液系及び固体の３
種類が用いられ、特に高耐圧のもには有機溶液系が使わ
れている。There are three types of electrolyte: aqueous solution, organic solution, and solid.
Various types are used, and organic solution systems are used especially for high-voltage types.
有機溶媒には、例えばプロピレンカーボネートがある。Organic solvents include, for example, propylene carbonate.
（弁明が解決しようとする課題）
有機溶液系の電解液は一般的に耐圧が高いが、しかし、
プロピレンカーボネートには２Ｖ以上の電圧を印加する
と、次の通りの電気化学的４【分解反応により炭酸ガス
を発生する。(The problem that the defense aims to solve) Organic solution-based electrolytes generally have a high withstand voltage, but,
When a voltage of 2V or more is applied to propylene carbonate, carbon dioxide gas is generated by the following electrochemical decomposition reaction.
そのために、ケース内の圧力が上昇して密閉不良となる
恐れを生じ、また等価直列抵抗（以下ＥＳＲという）等
が増大する欠点があった。As a result, the pressure inside the case may increase, resulting in poor sealing, and the equivalent series resistance (hereinafter referred to as ESR) may increase.
本発明の目的は、以上の欠点を改良し、内部ガス圧の上
昇による不良や特性劣化を防止しつる電気二重層コンデ
ンサ用電解液を提供するものである。An object of the present invention is to provide an electrolytic solution for electric double layer capacitors that can improve the above-mentioned drawbacks and prevent defects and characteristic deterioration due to increases in internal gas pressure.
（課題を解決（るための手段）
本発明は上記の目的を達成するために、プロピレンカー
ボネートを主成分どＪ゛る有機系の電気工ａｌｌコンデ
ンサ用電解液において、炭酸ガス吸着剤を添加した電気
二重層コンデンサ用電解液を提供するものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an organic electrolyte solution for all electrical capacitors containing propylene carbonate as a main component, to which a carbon dioxide adsorbent is added. The present invention provides an electrolytic solution for electric double layer capacitors.
（作用）
電解液中に炭酸ガス吸着剤を添加しているために、プロ
ピレンカーボネートの電気化学的な分解反応によって生
じた炭酸ガスは吸着剤に吸着される。従って、ケース内
のガス圧の上昇を防止できる。(Function) Since a carbon dioxide adsorbent is added to the electrolyte, carbon dioxide generated by the electrochemical decomposition reaction of propylene carbonate is adsorbed by the adsorbent. Therefore, an increase in gas pressure within the case can be prevented.
（実施例） 以下、木北門を実施例に基づいて説明する。(Example) Hereinafter, Kokuhokumon will be explained based on an example.
溶媒としてはプロピレンカーボネートを用いる。Propylene carbonate is used as the solvent.
溶質としては四フッ化ホウ酸テトラニブルアンモニウム
を用い、プロピレンカーボネートに溶解する。As the solute, tetrafluoroboric acid tetranibulammonium is used and dissolved in propylene carbonate.
炭酸ガス吸着剤としては、酸化カルシウムや酸化マグネ
シウム、酸化ベリリウム、酸化ストロンチウム、酸化バ
リウム等を用い、これを電解液に添加し溶かす。As the carbon dioxide adsorbent, calcium oxide, magnesium oxide, beryllium oxide, strontium oxide, barium oxide, etc. are used, and these are added to the electrolyte and dissolved.
次に、本発明と従来の電解液を用いた第１図に示す電気
′Ｔ、重層コンデンサについて、初期特性を測定し、身
命試験を行なった。Next, the initial characteristics of the electric multilayer capacitors shown in FIG. 1 using the electrolyte of the present invention and the conventional electrolyte were measured, and a life test was conducted.
第１図の電気二重層コンデンサについて説明覆ると、１
は、分極性電極であり、カーボンブランクにテフロン系
バインダーを約２５％添加した材料を厚さ５００μｍの
シート状にし、直径１４ｍｍの円形状に打ち抜いたもの
である。２は、この分極性電極１の中間に積層されてい
るセパレータであり、厚さ２５μｍ１直径１７闇の円形
状のポリプロピレン製多孔質フィルムからなる。３は厚
さ１．６順、直径２０朋のステンレス製のコイン形のケ
ースである。そして分極性電極１には次の組成からなる
電解液を１７５μｍ含浸している。Explanation of the electric double layer capacitor shown in Figure 1: 1
is a polarizable electrode, which is made of a carbon blank with approximately 25% Teflon binder added to a sheet shape of 500 μm in thickness, and punched out into a circular shape with a diameter of 14 mm. A separator 2 is laminated between the polarizable electrodes 1, and is made of a polypropylene porous film having a thickness of 25 μm, a diameter of 17 mm, and a circular shape. 3 is a stainless steel coin-shaped case with a thickness of 1.6 mm and a diameter of 20 mm. The polarizable electrode 1 is impregnated with 175 μm of an electrolytic solution having the following composition.
木冗明実施例： プロピレンカーボネ−１− 四フッ化ホウ酸テトラエチルアンモニウムＩ Ｍ／、＃ 酸化カルシウム ０．０５ｍｇ 従来例： プロピレンカーボネート 四フフ化ホウ酸テトラエチルアンモニウム１ Ｍ／Ｊ 初期特性は表の通りの値を示した。Wooden example: Propylene carbon-1- Tetraethylammonium tetrafluoroborate IM/, # Calcium oxide 0.05mg Conventional example: propylene carbonate Tetraethylammonium tetrafluoroborate 1 M/J The initial characteristics showed the values shown in the table.
表
また、寿命試験は、各試料を電圧２〔Ｖ〕印加した状態
で温度８５°Ｃの雰囲気中に放置して行な化率が３１５
そして漏れ電流が４／１５となり、各々改善されている
。In addition, the life test was performed by leaving each sample in an atmosphere at a temperature of 85°C with a voltage of 2 [V] applied, and the conversion rate was 315.
The leakage current was reduced to 4/15, which is an improvement in each case.
（発明の効果）
以上の通り、本発明によれば、電解液中に炭酸ガス吸着
剤を添加しているため、これを電気二重層コンデンサに
用いた場合にケース内のガス圧の上昇による密閉不良や
ＥＳＲ等の特性の劣化を軽減しつる電気二重層コンデン
サ用電解液が得られる。(Effects of the Invention) As described above, according to the present invention, since a carbon dioxide adsorbent is added to the electrolyte, when this is used in an electric double layer capacitor, the gas pressure inside the case increases and the gas pressure increases. An electrolytic solution for electric double layer capacitors that reduces defects and deterioration of characteristics such as ESR can be obtained.
１・・・分離性電極、 ２・・・セパレータ、３・・・
ケース。1... Separable electrode, 2... Separator, 3...
Case.
Claims (1)
電気二重層コンデンサ用電解液において、炭酸ガス吸着
剤を添加した電気二重層コンデンサ用電解液。(1) An organic electrolyte for electric double layer capacitors containing propylene carbonate as a main component, in which a carbon dioxide adsorbent is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290482A JPH02135719A (en) | 1988-11-17 | 1988-11-17 | Electrolyte for electrical-double-layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63290482A JPH02135719A (en) | 1988-11-17 | 1988-11-17 | Electrolyte for electrical-double-layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135719A true JPH02135719A (en) | 1990-05-24 |
Family
ID=17756590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63290482A Pending JPH02135719A (en) | 1988-11-17 | 1988-11-17 | Electrolyte for electrical-double-layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135719A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376049A (en) * | 1991-09-18 | 1994-12-27 | Lohr & Bromkamp Gmbh | Tripod joint |
| US5781403A (en) * | 1909-07-30 | 1998-07-14 | Nec Corporation | Electric double layer capacitor having hydrophobic powdery activated charcoal |
| JP2009516916A (en) * | 2005-11-22 | 2009-04-23 | マックスウェル テクノロジーズ， インク | Ultracapacitor pressure control system |
| US7826198B2 (en) * | 2007-12-29 | 2010-11-02 | Tsinghua University | Electrochemical capacitor with carbon nanotubes |
| US7826199B2 (en) * | 2007-11-02 | 2010-11-02 | Tsinghua University | Electrochemical capacitor with carbon nanotubes |
-
1988
- 1988-11-17 JP JP63290482A patent/JPH02135719A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5781403A (en) * | 1909-07-30 | 1998-07-14 | Nec Corporation | Electric double layer capacitor having hydrophobic powdery activated charcoal |
| US5376049A (en) * | 1991-09-18 | 1994-12-27 | Lohr & Bromkamp Gmbh | Tripod joint |
| JP2009516916A (en) * | 2005-11-22 | 2009-04-23 | マックスウェル テクノロジーズ， インク | Ultracapacitor pressure control system |
| US7826199B2 (en) * | 2007-11-02 | 2010-11-02 | Tsinghua University | Electrochemical capacitor with carbon nanotubes |
| US7826198B2 (en) * | 2007-12-29 | 2010-11-02 | Tsinghua University | Electrochemical capacitor with carbon nanotubes |
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