JPH01262617A - Electric double layer capacitor - Google Patents
Electric double layer capacitorInfo
- Publication number
- JPH01262617A JPH01262617A JP63091949A JP9194988A JPH01262617A JP H01262617 A JPH01262617 A JP H01262617A JP 63091949 A JP63091949 A JP 63091949A JP 9194988 A JP9194988 A JP 9194988A JP H01262617 A JPH01262617 A JP H01262617A
- Authority
- JP
- Japan
- Prior art keywords
- ion
- electrolyte
- double layer
- electric double
- layer capacitor
- 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 17
- -1 thiocyanic acid ion Chemical class 0.000 claims abstract description 28
- 239000003792 electrolyte Substances 0.000 claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- 150000002500 ions Chemical class 0.000 claims abstract description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052796 boron Inorganic materials 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 5
- 239000003513 alkali Substances 0.000 claims abstract description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 3
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 3
- 125000001453 quaternary ammonium group Chemical group 0.000 abstract description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 abstract description 2
- RWRDLPDLKQPQOW-UHFFFAOYSA-O Pyrrolidinium ion Chemical compound C1CC[NH2+]C1 RWRDLPDLKQPQOW-UHFFFAOYSA-O 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Chemical class 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 239000003125 aqueous solvent Substances 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Substances FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000012457 nonaqueous media Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000004080 punching Methods 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
- SCSJEBFMSZHPTH-UHFFFAOYSA-M tetraethylazanium;thiocyanate Chemical compound [S-]C#N.CC[N+](CC)(CC)CC SCSJEBFMSZHPTH-UHFFFAOYSA-M 0.000 description 1
- XDQXIEKWEFUDFK-UHFFFAOYSA-N tributylsulfanium Chemical compound CCCC[S+](CCCC)CCCC XDQXIEKWEFUDFK-UHFFFAOYSA-N 0.000 description 1
- WCZKTXKOKMXREO-UHFFFAOYSA-N triethylsulfanium Chemical compound CC[S+](CC)CC WCZKTXKOKMXREO-UHFFFAOYSA-N 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)
従来、電気二重層コンデンサに用いられる電解質として
、酸性又はアルカリ性の水溶液、アルカリ金属又はアル
カリ土類金属の過塩素M塩、ホウフッ化塩、フッ化リン
酸塩等の非水溶液が用いられている。<Prior Art> Conventionally, as electrolytes used in electric double layer capacitors, acidic or alkaline aqueous solutions, non-aqueous solutions such as perchlorinated M salts of alkali metals or alkaline earth metals, borofluoride salts, fluorophosphates, etc. have been used as electrolytes. It is used.
(発明が解決しようとする課題)
しかし、水溶液系の電解質を用いたものは耐圧が低い欠
点がある。また、非水溶液系の電解質は金属の析出を生
じて容量が低下する欠点がある。(Problems to be Solved by the Invention) However, those using an aqueous electrolyte have a drawback of low withstand voltage. In addition, non-aqueous electrolytes have the disadvantage that metal precipitation occurs and the capacity decreases.
特に、過塩素M塩を用いたものは、高電圧、高温状態で
ラジカルが発生し易<、電解液が分解し易くなる欠点が
ある。In particular, those using perchlorine M salt have the disadvantage that radicals are easily generated under high voltage and high temperature conditions, and the electrolyte is easily decomposed.
本発明の目的は、以上の欠点を改良し、耐圧を向上し容
量を増加しつる電気二重層コンデン→ノを提供するもの
である。The object of the present invention is to provide an electric double layer capacitor which improves the above-mentioned drawbacks, improves the withstand voltage, and increases the capacity.
(:11!ii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、分極性電極、セパレータ及び
集電体からなり電解液を含浸したコンデンサ素子をケー
スに収納した電気二重層コンデンサにおいて、電解質と
して、4フ分ン
ッ化ホウ素イ#、チオシアン酸イオン、6フツ化タンタ
ルイオンまたはニトロ3フツ化ホウ素イオンのうちの少
なくとも一種の酸と、第4級アンモニウムイオン、スル
ホニウムイオンまたはピロリジニウムイオンのうちの少
なくとも一種のアルカリとからなる塩を含むことを特徴
とする電気工mmコンデンサを提供するものである。(Means for Solving: 11!ii) In order to achieve the above object, the present invention provides an electric secondary battery in which a capacitor element comprising a polarizable electrode, a separator and a current collector and impregnated with an electrolyte is housed in a case. In the multilayer capacitor, the electrolyte contains at least one acid selected from tetrafluoroboronium ion, thiocyanate ion, tantalum hexafluoride ion, or nitroboron trifluoride ion, and quaternary ammonium ion, sulfonium ion, or The present invention provides an electrical engineering mm capacitor characterized by containing a salt consisting of at least one type of alkali among pyrrolidinium ions.
6フフ化タンタルイオン、ニトロ3フフ化ホウ素イオン
はいずれも温度50℃以上、電圧2v以上において、電
解液に対して過塩iA酪酸塩りも化学的に安定である。Both the tantalum hexafluoride ion and the boron nitrotrifluoride ion are chemically stable with respect to the electrolytic solution at a temperature of 50° C. or higher and a voltage of 2 V or higher.
また、6フツ化タンタルイオンやチオシアン酸イオンま
たはニトロ3フツ化ホウ素イオンは、アルカリ金属やア
ルカリ土類金属のようには金属の析出がない。そのため
コンデンサの耐圧が向上する。Further, tantalum hexafluoride ions, thiocyanate ions, and boron trifluoride ions do not cause metal precipitation unlike alkali metals and alkaline earth metals. Therefore, the withstand voltage of the capacitor is improved.
(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.
分極性電極としては電解液に電気化学的に不活性な活性
炭や活性炭繊維、カーボンブラック等をプレスしてシー
ト状にし円形に打ち抜いたものを用いる。As the polarizable electrode, a sheet formed by pressing electrochemically inactive activated carbon, activated carbon fiber, carbon black, etc. into an electrolytic solution, forming a sheet, and punching it out into a circular shape is used.
電解液の溶媒には、電気化学的に安定な非水溶媒である
プロピレンカーボネートやγ−ブチルラクトン、アセト
ニトリル、ジメチルホルムアミド、1.2−ジメトキシ
エタン、スルボラン、ニトロメタン等を用い、特にプロ
ピレン・カーボネート、γ−ブチルラクトン、アセトニ
トリルが好ましく、実質的に無水の状態で使用する。ま
た、溶質としては、四フッ化ホウ酸トリ・メチルエチル
アンモニウム、四フフ化ホウ酸テトライソブチルアンモ
ニウム、チオシアン酸テトラエチルアンモニウム、六フ
ッ化タンタル酸テトラブチル、アンモニウム、ニトロ三
フフ化ホウ酸テトラエチルアンモニウム、四フフ化ホウ
酸トリエチルスルホニウム、四フッ化ホウ酸トリインブ
チルスルホニウム゛、四フッ化ホウ酸トリエチルブチル
スルホニウム、六フッ化タンタル酸トリエチルスルホニ
ウム、六フッ化タンタル酸トリブチルスルホニウム、六
フッ化タンタル酸トリエチルブチルアンモニウム、チオ
シアン酸トリエチルブチルアンモニウム、四フッ化ホウ
′酸メチルブチルピロリジウム、六フッ化タンタル酸メ
チルエチルピロリジウム、チオシアン酸メチルイソブチ
ルピロリジウム等を用いる。セパレータには厚さ数10
μmのボリプOピレン等の不織布を用いる。As the solvent for the electrolytic solution, electrochemically stable non-aqueous solvents such as propylene carbonate, γ-butyl lactone, acetonitrile, dimethylformamide, 1,2-dimethoxyethane, sulborane, nitromethane, etc. are used. In particular, propylene carbonate, γ-Butyl lactone and acetonitrile are preferred and used in a substantially anhydrous state. In addition, solutes include trimethylethylammonium tetrafluoroborate, tetraisobutylammonium tetrafluoroborate, tetraethylammonium thiocyanate, tetrabutyl hexafluorotantalate, ammonium, tetraethylammonium nitrotrifluoroborate, and tetrafluoroborate. Triethylsulfonium fluoroborate, triinebutylsulfonium tetrafluoroborate, triethylbutylsulfonium tetrafluoroborate, triethylsulfonium hexafluorotantalate, tributylsulfonium hexafluorotantalate, triethylbutyl hexafluorotantalate Ammonium, triethylbutylammonium thiocyanate, methylbutylpyrrolidium tetrafluoroborate, methylethylpyrrolidium hexafluorotantalate, methylisobutylpyrrolidium thiocyanate, etc. are used. The separator has a thickness of 10
A non-woven fabric such as µm volip O pyrene is used.
集電体はケースを兼ねてステンレス製のボタン形のケー
スを用いる。A stainless steel button-shaped case is used as the current collector, which also serves as the case.
上記実施例によれば、電解液としてプロピレンカーボネ
ート等の安定な非水溶媒に、4フフ化ホウ素イオン等や
6フツ化タンタルイオン等からなる塩を溶質を加えた物
質を用いているために、化学的に安定でコンデンサの耐
圧が向上する。According to the above embodiment, since the electrolyte is a stable non-aqueous solvent such as propylene carbonate and a solute containing salts such as boron tetrafluoride ions and tantalum hexafluoride ions, It is chemically stable and improves the withstand voltage of capacitors.
(発明の効果)
以上の通り、本発明によれば、電解質として4フツ化ホ
ウ素イオン等の酸と第4級アンモニウムイオン等のアル
hすとからなる塩を含んでいるため耐圧が高く信頼性の
高い電気二重層コンデンサがダqられる。(Effects of the Invention) As described above, according to the present invention, since the electrolyte contains a salt consisting of an acid such as boron tetrafluoride ion and an alkaline salt such as quaternary ammonium ion, the voltage resistance is high and the reliability is high. Electric double layer capacitors with high efficiencies are being sold.
特許出願人 日立コンデンサ株式会社Patent applicant: Hitachi Capacitor Co., Ltd.
Claims (1)
液を含浸したコンデンサ素子をケースに収納した電気二
重層コンデンサにおいて、電解質として、4フッ化ホウ
素イオン、チオシアン酸イオン、6フッ化タンタルイオ
ンまたはニトロ3フッ化ホウ素イオンのうちの少なくと
も一種の酸と、第4級アンモニウムイオン、スルホニウ
ムイオンまたはピロリジニウムイオンのうちの少なくと
も一種のアルカリとからなる塩を含むことを特徴とする
電気二重層コンデンサ。(1) In an electric double layer capacitor in which a capacitor element consisting of a polarizable electrode, a separator, and a current collector is impregnated with an electrolytic solution and housed in a case, boron tetrafluoride ion, thiocyanate ion, tantalum hexafluoride ion is used as the electrolyte. or an electric double layer capacitor characterized by containing a salt consisting of at least one kind of acid among nitroboron trifluoride ions and at least one kind of alkali among quaternary ammonium ions, sulfonium ions, or pyrrolidinium ions. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63091949A JPH01262617A (en) | 1988-04-14 | 1988-04-14 | Electric double layer capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63091949A JPH01262617A (en) | 1988-04-14 | 1988-04-14 | Electric double layer capacitor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01262617A true JPH01262617A (en) | 1989-10-19 |
Family
ID=14040834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63091949A Pending JPH01262617A (en) | 1988-04-14 | 1988-04-14 | Electric double layer capacitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01262617A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003001623A3 (en) * | 2001-06-22 | 2003-04-10 | Merck Patent Gmbh | Conducting salts comprising niobium or tantalum |
JP2010192226A (en) * | 2009-02-18 | 2010-09-02 | Toyo Ink Mfg Co Ltd | Electrolyte, electrolyte composition, and those application |
EP3240092A4 (en) * | 2014-12-22 | 2018-08-15 | Samsung SDI Co., Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery comprising same |
-
1988
- 1988-04-14 JP JP63091949A patent/JPH01262617A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003001623A3 (en) * | 2001-06-22 | 2003-04-10 | Merck Patent Gmbh | Conducting salts comprising niobium or tantalum |
JP2010192226A (en) * | 2009-02-18 | 2010-09-02 | Toyo Ink Mfg Co Ltd | Electrolyte, electrolyte composition, and those application |
EP3240092A4 (en) * | 2014-12-22 | 2018-08-15 | Samsung SDI Co., Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery comprising same |
US10601068B2 (en) | 2014-12-22 | 2020-03-24 | Samsung Sdi Co., Ltd. | Electrolyte for lithium secondary battery and lithium secondary battery comprising same |
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