JPH01220424A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPH01220424A JPH01220424A JP63046149A JP4614988A JPH01220424A JP H01220424 A JPH01220424 A JP H01220424A JP 63046149 A JP63046149 A JP 63046149A JP 4614988 A JP4614988 A JP 4614988A JP H01220424 A JPH01220424 A JP H01220424A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- double layer
- electric double
- layer capacitor
- group
- 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 12
- 239000003792 electrolyte Substances 0.000 claims abstract description 18
- 125000005207 tetraalkylammonium group Chemical group 0.000 claims abstract description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000003960 organic solvent Substances 0.000 claims abstract description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract description 3
- -1 polypropylene Polymers 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 125000000217 alkyl group Chemical group 0.000 abstract description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 abstract description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 239000004917 carbon fiber Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- ALOAEEKRZQMXKD-UHFFFAOYSA-N carbonic acid pyrene Chemical compound C(O)(O)=O.C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C34 ALOAEEKRZQMXKD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002747 voluntary effect Effects 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） 本発明は電気二重層コンデンサに関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an electric double layer capacitor.
（従来の技術）
電気二重層コンデンサは、電解液と電極との間に形成さ
れる電気二重層に電荷を蓄え利用するもので、電解液の
分解電圧によってその耐圧が決められる。 従来用いら
れている電解液は、水系と有様系の２種類があり、前者
は１．２Ｖ、後者は２．５〜３．０Ｖの分解電圧を有し
ており、後者の方がより高く製品の小型化がし易い。(Prior Art) An electric double layer capacitor stores and utilizes electric charge in an electric double layer formed between an electrolyte and an electrode, and its withstand voltage is determined by the decomposition voltage of the electrolyte. There are two types of conventionally used electrolytes: aqueous and electrolytic.The former has a decomposition voltage of 1.2V and the latter has a decomposition voltage of 2.5 to 3.0V, with the latter having a higher decomposition voltage. It is easy to downsize the product.
（発明が解決しようとする課題）
しかし有機系の電解液に用いられる電解質はイオンの活
性化が大きく金属製の集電電極を腐食し、コンデンサの
寿命改善の妨げとなっていた。(Problems to be Solved by the Invention) However, the electrolyte used in the organic electrolyte has a large activation of ions that corrodes the metal current collecting electrode, which hinders the improvement of the life of the capacitor.
本発明の目的は、以上の欠点を改良し、寿命を向上しう
る電気二重層コンデンサを提供するものである。An object of the present invention is to provide an electric double layer capacitor that can improve the above-mentioned drawbacks and improve its lifespan.
（課題を解決するための手段）
本発明は、上記の目的を達成するために、有機溶媒系の
電解液を含浸した電気二重層コンデンサにおいて、フタ
ル酸テトラアルキルアンモニウムからなる電解質を有す
ることを特徴とする電気工ｆｆ［コンデンサを提供する
ものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an electric double layer capacitor impregnated with an organic solvent-based electrolyte, which is characterized by having an electrolyte made of tetraalkylammonium phthalate. Electricians ff [capacitors].
（作用）
電解質として用いられるフタル酸テトラアルキルアンモ
ニウムは活性化が小さく、集Ｈｆｆｔ極との反応を減少
でき、コンデンサの寿命を改善できる。(Function) Tetraalkylammonium phthalate used as an electrolyte has low activation, can reduce reaction with the Hfft electrode, and can improve the life of the capacitor.
（実施例） 以下、本発明を実施例に基づいて説明する。(Example) Hereinafter, the present invention will be explained based on examples.
分極性電極には比表面積１５００ＴＩｔ／ｑの活性炭繊
維（クラレケミカル株式会社製９９００ ＣＨ−１５）
を用いる。The polarizable electrode was made of activated carbon fiber with a specific surface area of 1500 TIt/q (9900 CH-15 manufactured by Kuraray Chemical Co., Ltd.).
Use.
セパレータはポリプロピレン製不織布を用いる。The separator uses polypropylene nonwoven fabric.
電解液としては、右ｎＦ８ｍとしてプロピレンカーボネ
ートやガンマブチルラクトン、３メチル１．３オキザリ
ジン−２−オン等を用い、電解質としてフタル酸テトラ
アルキルアンモニウムを用いる。電解質のフタル酸テト
ラアルキルアンモニウムのアルキル基はメチル基、エチ
ル基、プロピル基、プヂル基等と１６゜
集電体はアルミ板とする。As the electrolyte, propylene carbonate, gamma butyl lactone, 3-methyl-1,3-oxalidin-2-one, etc. are used as the right nF8m, and tetraalkylammonium phthalate is used as the electrolyte. The alkyl group of the electrolyte, tetraalkylammonium phthalate, is a methyl group, ethyl group, propyl group, pudyl group, etc., and the current collector is an aluminum plate.
次に、上記実施例について電解液の溶媒と溶質の組合わ
せを変えた場合に従来例とともに、寿命試験を行い、漏
れ電流及び静電容量変化率を測定したところ第１図及び
第２図に示１通りの結果が得られた。Next, when the combination of solvent and solute in the electrolytic solution was changed for the above example, a life test was conducted along with the conventional example, and the leakage current and capacitance change rate were measured, as shown in Figures 1 and 2. The following results were obtained.
試験は、第３図及び第４図に示す通り、活性炭素ｌ維を
１７■用いて１字形にした分極性電極１を２枚用い、セ
パレータ２を挟み、テフロンネジ３により一体化したも
のを電解液の充填されたネジ口のビン４中に入れ、封止
して、測定用端子５を引き出し分極性電極１に接続した
ものを、測定用端子５に電圧２Ｖを印加し、温度８５℃
の雰囲気中に放置して行う。As shown in Figs. 3 and 4, the test was conducted using two polarizable electrodes 1 made of 17cm activated carbon fibers in a single shape, sandwiching a separator 2 between them, and integrating them with Teflon screws 3. It is placed in a screw cap bottle 4 filled with electrolyte, sealed, and the measuring terminal 5 is pulled out and connected to the polarizable electrode 1. A voltage of 2 V is applied to the measuring terminal 5, and the temperature is 85°C.
This is done by leaving it in an atmosphere of
表
（＋）Ｃニブａピレンカーボネート、ＭＯ：３メチル１
，３オキザリジン−２−オン、ＧＢＬ：ガンマブチルラ
クトン）
第２図から明らかな通り、発の実施例１〜８は３０００
時間放置後も漏れ電流に変化が無いにも対して従来例１
〜２は１０００〜２０００ＦＲ間で増加する。Table (+) C nib a pyrene carbonate, MO: 3 methyl 1
, 3 oxalidin-2-one, GBL: gamma butyrlactone) As is clear from FIG.
Conventional example 1 shows that there is no change in leakage current even after leaving it for a while.
~2 increases between 1000 and 2000 FR.
また、第３図から２０００時間後の静電容量変化率は実
施例１〜８が−３，５〜５．０％であるのに対して、従
来１例は一３２％、従来例２が一１０％となり、前者の
方が２倍以上改良されている。Furthermore, from FIG. 3, the capacitance change rate after 2000 hours is -3.5 to 5.0% for Examples 1 to 8, while it is -32% for Conventional Example 1 and 32% for Conventional Example 2. -10%, and the former is more than twice as improved.
（発明の効果）
以上の通り、本発明によれば、電解質としてフタル酸テ
トラアルキルアンモニウムを用いているため、漏れ電流
や静電容量変化率の少ない寿命の改善された電気二重層
コンアン４ノが得られる。４、(Effects of the Invention) As described above, according to the present invention, since tetraalkyl ammonium phthalate is used as the electrolyte, an electric double layer capacitor with improved life with less leakage current and capacitance change rate can be obtained. can get. 4,
第１図は漏れ電流特性のグラフ、第２図は静電容量変化
率のグラフ、第３図は測定に用いる分極性電極の正面図
、第４図は測定に用いる試料の正面図を示す。
１・・・分極性電極、 ２・・・セパレータ、特許出願
人 日立コンデンサ株式会社
時間国
第３〒
第４ ％、／’ｉ
手続補正内（自発）
昭和６３年３月７−２日
昭和６３年２月２９日出願の特許願（４）２、発明の名
称
電気二重層コンデンサ
３、補正をする者
事件との関係 特許出願人FIG. 1 is a graph of leakage current characteristics, FIG. 2 is a graph of capacitance change rate, FIG. 3 is a front view of a polarizable electrode used for measurement, and FIG. 4 is a front view of a sample used for measurement. 1...Polarizable electrode, 2...Separator, Patent applicant Hitachi Capacitor Co., Ltd. Time Country No. 3〒4%, /'i Procedural amendment (voluntary) March 7-2, 1988 Patent application filed on February 29, 2017 (4) 2, Name of invention Electric double layer capacitor 3, Relationship with the amended person case Patent applicant
Claims (1)
ンサにおいて、フタル酸テトラアルキルアンモニウムか
らなる電解質を有することを特徴とする電気二重層コン
デンサ。(1) An electric double layer capacitor impregnated with an organic solvent-based electrolyte, characterized by having an electrolyte made of tetraalkylammonium phthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63046149A JPH01220424A (en) | 1988-02-29 | 1988-02-29 | Electric double layer capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63046149A JPH01220424A (en) | 1988-02-29 | 1988-02-29 | Electric double layer capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01220424A true JPH01220424A (en) | 1989-09-04 |
Family
ID=12738920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63046149A Pending JPH01220424A (en) | 1988-02-29 | 1988-02-29 | Electric double layer capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01220424A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014524146A (en) * | 2011-07-08 | 2014-09-18 | ファーストキャップ・システムズ・コーポレイション | High temperature energy storage device |
| US10872737B2 (en) | 2013-10-09 | 2020-12-22 | Fastcap Systems Corporation | Advanced electrolytes for high temperature energy storage device |
| US11127537B2 (en) | 2015-01-27 | 2021-09-21 | Fastcap Systems Corporation | Wide temperature range ultracapacitor |
| US11250995B2 (en) | 2011-07-08 | 2022-02-15 | Fastcap Systems Corporation | Advanced electrolyte systems and their use in energy storage devices |
-
1988
- 1988-02-29 JP JP63046149A patent/JPH01220424A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014524146A (en) * | 2011-07-08 | 2014-09-18 | ファーストキャップ・システムズ・コーポレイション | High temperature energy storage device |
| US10714271B2 (en) | 2011-07-08 | 2020-07-14 | Fastcap Systems Corporation | High temperature energy storage device |
| US11250995B2 (en) | 2011-07-08 | 2022-02-15 | Fastcap Systems Corporation | Advanced electrolyte systems and their use in energy storage devices |
| US11482384B2 (en) | 2011-07-08 | 2022-10-25 | Fastcap Systems Corporation | High temperature energy storage device |
| US11776765B2 (en) | 2011-07-08 | 2023-10-03 | Fastcap Systems Corporation | Advanced electrolyte systems and their use in energy storage devices |
| US11901123B2 (en) | 2011-07-08 | 2024-02-13 | Fastcap Systems Corporation | High temperature energy storage device |
| US10872737B2 (en) | 2013-10-09 | 2020-12-22 | Fastcap Systems Corporation | Advanced electrolytes for high temperature energy storage device |
| US11488787B2 (en) | 2013-10-09 | 2022-11-01 | Fastcap Systems Corporation | Advanced electrolytes for high temperature energy storage device |
| US11127537B2 (en) | 2015-01-27 | 2021-09-21 | Fastcap Systems Corporation | Wide temperature range ultracapacitor |
| US11756745B2 (en) | 2015-01-27 | 2023-09-12 | Fastcap Systems Corporation | Wide temperature range ultracapacitor |
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