CN103788017A - Piperidines ionic liquid, and preparation method and application thereof - Google Patents
Piperidines ionic liquid, and preparation method and application thereof Download PDFInfo
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- CN103788017A CN103788017A CN201210428462.4A CN201210428462A CN103788017A CN 103788017 A CN103788017 A CN 103788017A CN 201210428462 A CN201210428462 A CN 201210428462A CN 103788017 A CN103788017 A CN 103788017A
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- ionic liquid
- piperidines
- piperidines ionic
- electrolyte
- organic solvent
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- 150000003053 piperidines Chemical class 0.000 title claims abstract description 103
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000003960 organic solvent Substances 0.000 claims abstract description 30
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- 239000003792 electrolyte Substances 0.000 claims description 36
- 238000000605 extraction Methods 0.000 claims description 32
- PAMIQIKDUOTOBW-UHFFFAOYSA-N 1-methylpiperidine Chemical compound CN1CCCCC1 PAMIQIKDUOTOBW-UHFFFAOYSA-N 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 29
- 150000001350 alkyl halides Chemical class 0.000 claims description 26
- 239000008367 deionised water Substances 0.000 claims description 26
- 229910021641 deionized water Inorganic materials 0.000 claims description 26
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical group CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 18
- 101710134784 Agnoprotein Proteins 0.000 claims description 14
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 239000012043 crude product Substances 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 14
- 238000005342 ion exchange Methods 0.000 claims description 12
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 238000004448 titration Methods 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 239000012298 atmosphere Substances 0.000 claims description 11
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- 229910052794 bromium Inorganic materials 0.000 claims description 6
- 229910052740 iodine Inorganic materials 0.000 claims description 6
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 abstract description 10
- 150000001768 cations Chemical class 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 abstract description 2
- 150000001450 anions Chemical class 0.000 abstract 1
- -1 1-ethyl-3-methylimidazole tetrafluoroborate ion Chemical class 0.000 description 20
- 239000007789 gas Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 17
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 16
- 239000002002 slurry Substances 0.000 description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 229910052736 halogen Inorganic materials 0.000 description 14
- 239000012074 organic phase Substances 0.000 description 14
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000007795 chemical reaction product Substances 0.000 description 10
- 239000000376 reactant Substances 0.000 description 10
- 238000002156 mixing Methods 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000005030 aluminium foil Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910020808 NaBF Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000006230 acetylene black Substances 0.000 description 4
- 239000004964 aerogel Substances 0.000 description 4
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 125000005843 halogen group Chemical group 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000005486 organic electrolyte Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XPDWGBQVDMORPB-UHFFFAOYSA-N trifluoromethane acid Natural products FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 229910052754 neon Inorganic materials 0.000 description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000012434 nucleophilic reagent Substances 0.000 description 2
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KMGBZBJJOKUPIA-UHFFFAOYSA-N butyl iodide Chemical compound CCCCI KMGBZBJJOKUPIA-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- OPLFGPGOQRYQNK-UHFFFAOYSA-N ethane 1-methoxy-4-[2,2,2-trichloro-1-(4-methoxyphenyl)ethyl]benzene Chemical compound CC.C1=CC(OC)=CC=C1C(C(Cl)(Cl)Cl)C1=CC=C(OC)C=C1 OPLFGPGOQRYQNK-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 150000002891 organic anions Chemical class 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
- C07D295/084—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/088—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/62—Liquid electrolytes characterised by the solute, e.g. salts, anions or cations therein
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
The invention discloses a piperidines ionic liquid which has the following general structural formula defined in the description, wherein n is 2, 3 or 4, and Y<-> represents BF4<->, PF6<->, (CF3SO2)2N<-> or CF3SO3<->. The piperidines ionic liquid is composed of an anion and a cation at the room temperature, has good conductivity, moreover, is not easily volatilized, is not burnt, and has good thermal stability. When a piperidines ionic liquid electrolytic solution is used in a super capacitor, because an organic solvent of the piperidines ionic liquid electrolytic solution is evenly mixed with a large amount of the piperidines ionic liquid, the piperidines ionic liquid electrolytic solution is safer to use compared with a traditional organic electrolytic solution. The invention also discloses a preparation method and an application of the piperidines ionic liquid.
Description
Technical field
The electrolytic solution field that the present invention relates to ultracapacitor, particularly relates to piperidines ionic liquid and preparation method thereof and application.
Background technology
Ionic liquid (Ionic liquids) (is generally below 100 ℃) and is in a liquid state in room temperature range, is made up of organic cation and inorganic anion (or organic anion).Ionic liquid has adjustability, need to change its zwitterion structure and can reach planner's object, thereby ionic liquid is called as planner's solvent according to difference.Just found first ionic liquid-nitro ethamine as far back as 1914, but the progress in this field is slow thereafter.Until 1992, Wikes leader's research group has synthesized after low melting point, resistant to hydrolysis, 1-ethyl-3-methylimidazole tetrafluoroborate ion liquid ([EMIM] BF4) that stability is strong, the research of ionic liquid is just developed rapidly, has developed subsequently a series of ion liquid system.Initial ionic liquid is mainly used in electrochemical research, and ionic liquid comes into one's own for organism and high molecular synthesizing as green solvent in recent years.Compare with ionogen with traditional organic solvent, ionic liquid has advantages of a series of outstanding: (1) fusing point lower than or approach room temperature, the temperature range being in a liquid state is wide; (2) steam force down, hardly volatilization, colourless, odorless; (3) there is wider equilibrium temperature scope, preferably chemical stability and wider electrochemical stability potential window; (4) good dissolution characteristics, all shows good dissolving power to a lot of inorganicss and organism; (5) without point of ignition and nonflammable; (6) can be recycled, free from environmental pollution etc.At present to the research of ionic liquid mainly concentrate on novel ion liquid synthetic, ionic liquid physics and chemistry characteristic sign and as the aspect such as solvent and electrolytical applied research.Ionic liquid, as the novel solvent of a class, medium, catalyzer, has been obtained many gratifying results in the research in the fields such as organic synthesis, catalyzed reaction, extracting and separating, material preparation, natural polymer, electrochemistry, has been subject to paying close attention to widely.
It is a kind of Novel energy storage apparatus that ultracapacitor is again double layer capacitor, the feature such as it has, and the duration of charging is short, power density is large, capacity is large, long service life, good temp characteristic, save energy and environmental protection.Ultracapacitor is widely used in the fields such as electronic toy electric motor, digital camera, palm PC, electromobile.
The electrolytic solution of traditional ultracapacitor is generally organic electrolyte, and organic electrolyte easily decomposes generation hydrocarbon gas, gas leakage occurs and even explode, dangerous when use.
Summary of the invention
Based on this, be necessary to provide a kind of safe piperidines ionic liquid and piperidines il electrolyte of using.
A kind of piperidines ionic liquid, its general structure is:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
A preparation method for piperidines ionic liquid, comprises the following steps:
Under shielding gas atmosphere, the methyl piperidine that is 1:1.05 ~ 1.2 by mol ratio and there is general formula CH
3o (CH
2)
nthe haloalkane of X is at 60 ℃ ~ 80 ℃, and stirring reaction obtains crude product, and wherein, X is Cl, Br or I, by described crude product washing, obtains having the Alkylpiperidine halogenide of following general structure after being dried:
Wherein, n is 2,3 or 4, X
-for Cl
-, Br
-or I
-;
According to mol ratio 1:1 ~ 1.1 by described Alkylpiperidine halogenide with there is formula M
+y
-salt at room temperature add in deionized water, wherein M+ is Na
+, K
+or NH
4 +, Y
-for BF
4 -, PF6
-, (FSO
2)
2n
-, (CF
3sO
2) 2N
-or CF
3sO
3 -, stir ion exchange reaction occurs, after separating-purifying, obtain having the piperidines ionic liquid of following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
In one embodiment, described by the operation of described crude product washing, the solvent of described washing is ethyl acetate.
In one embodiment, described Alkylpiperidine halogenide and there is formula M
+y
-the mol ratio of salt be 1:1.05.
In one embodiment, described separating-purifying comprises following operation: by the described piperidines ionic liquid dichloromethane extraction obtaining, the methylene dichloride then extraction being obtained is used deionized water back extraction mutually, until with saturated AgNO
3aqueous solution titration water then by the vacuum-drying of methylene dichloride phase, is removed methylene dichloride till producing without precipitation, obtains the piperidines ionic liquid after purifying.
In one embodiment, described methyl piperidine and described in there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X is 1:1.1.
In one embodiment, described being dried as processing under the vacuum condition at 80 ℃.
A kind of piperidines il electrolyte, comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n-or CF
3sO
3 -;
The mass ratio of described piperidines ionic liquid and described organic solvent is 1 ~ 2:5 ~ 1, and described piperidines ionic liquid and described organic solvent evenly mix.
In one embodiment, described organic solvent is acetonitrile, propylene carbonate or gamma-butyrolactone.
A kind of ultracapacitor, comprises shell, positive pole, negative pole and piperidines il electrolyte;
Described piperidines il electrolyte is between positive pole and negative pole;
Described piperidines il electrolyte comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -;
The mass ratio of described piperidines ionic liquid and described organic solvent is 1 ~ 2:5 ~ 1, and described piperidines ionic liquid and described organic solvent evenly mix.
Above-mentioned piperidines ionic liquid, at room temperature by negatively charged ion and cation composition, has good electroconductibility, and is not easy volatilization, does not burn, and has good thermostability.When piperidines il electrolyte is used for ultracapacitor, owing to being evenly mixed with a large amount of piperidines ionic liquids in the organic solvent of piperidines il electrolyte, therefore, compare with traditional organic electrolyte, above-mentioned piperidines il electrolyte is used safer.
Accompanying drawing explanation
Fig. 1 is the preparation method's of the piperidines ionic liquid of an embodiment schema;
Fig. 2 is the preparation method's of the piperidines il electrolyte of an embodiment schema.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.A lot of details are set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public concrete enforcement.
The piperidines ionic liquid of one embodiment, its general structure is:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
Above-mentioned piperidines ionic liquid, at room temperature by negatively charged ion and cation composition, has good electroconductibility, and steam force down be not easy volatilization, without point of ignition and do not burn, there is the temperature range of wider stable existence and good thermostability, can be recycled, the advantage such as free from environmental pollution.
Above-mentioned piperidines ionic liquid contains methoxyl group alkyl chain, due to methoxyl group alkyl chain with respect to etc. the alkyl chain of chain length there is better flexibility, hindered the tightly packed formation crystal between ion, thereby had than the lower fusing point of same chain long alkyl chain.In addition, methoxyl group alkyl chain with respect to etc. the alkyl chain of chain length there is higher specific conductivity.
The preparation method of above-mentioned piperidines ionic liquid as shown in Figure 1, comprises the following steps:
S110, under shielding gas atmosphere, the methyl piperidine that is 1:1.05～1.2 by mol ratio and there is general formula CH
3o (CH
2)
nthe haloalkane of X is at 60 ℃ ~ 80 ℃, and stirring reaction obtains crude product, and wherein, X is Cl, Br or I.By crude product washing, after being dried, obtain Alkylpiperidine halogenide.
Alkylpiperidine halogenide has following general structure:
Wherein, n is 2,3 or 4, X
-for Cl
-, Br
-or I
-.
Methyl piperidine and there is general formula CH
3o (CH
2)
ncan there is nucleophilic substitution reaction in the haloalkane of X, wherein, methyl piperidine is nucleophilic reagent.When reaction, methyl piperidine can replace and has general formula CH
3o (CH
2)
nhalogen in the haloalkane of X, halogen leaves has general formula CH
3o (CH
2)
nthe haloalkane of X, thus Alkylpiperidine halogenide obtained.For the ease of understanding, below to there is general formula CH
3o (CH
2)
nthe haloalkane of X is CH
3oCH
2cH
2cl is that example describes.Methyl piperidine and CH
3oCH
2cH
2it is as follows that the reaction of Cl obtains the equation of N-methoxy ethyl-N-methyl piperidine villaumite:
Methyl piperidine and there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X can be 1: 1.1.Methyl piperidine and there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X is that 1:1.1 is conducive to improve the halid productive rate of Alkylpiperidine obtaining.
Shielding gas can be nitrogen (N2), neon (Ne) or argon gas (Ar) etc., in actual applications, can select as required suitable shielding gas.
The churning time of above-mentioned stirring reaction can be 20h ~ 60h, and reactant is fully contacted, and reaction.
The solvent of washing can be ethyl acetate.
Wash and can remove unreacted methyl piperidine and there is general formula CH by ethyl acetate
3o (CH
2)
nthe haloalkane of X, washs and can better dissolve unreacted methyl piperidine and have general formula CH by ethyl acetate
3o (CH
2)
nthe haloalkane of X, makes reaction product purer.
In the present embodiment, the number of times of washing can be 3 times.In other embodiments, can select suitable washing times to remove unreacted methyl piperidine and there is general formula CH according to response situation
3o (CH
2)
nthe haloalkane of X.
Be dried can be for to process crude product under the vacuum condition of 80 ℃.Dry temperature is 80 ℃, and the rate of drying of crude product is faster, and can not destroy product structure.
S120, according to mol ratio 1:1 ~ 1.1 by Alkylpiperidine halogenide with there is formula M
+y
-salt at room temperature add in deionized water, wherein M
+for Na
+, K
+or NH
4 +, Y
-for BF
4 -, PF
6 -, (FSO
2)
2n
-, (CF
3sO
2)
2n
-or CF
3sO
3 -.Stir ion exchange reaction occurs, after separating-purifying, obtain piperidines ionic liquid.
Piperidines ionic liquid has following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n-or CF
3sO
3 -.
Alkylpiperidine halogenide and there is formula M
+y
-salt generation ion exchange reaction.Y
-carry out ion-exchange with the halid halogen anion of Alkylpiperidine, obtain piperidines ionic liquid.For the ease of understanding, methoxy ethyl-N-methyl piperidine villaumite and there is formula M take Alkylpiperidine halogenide as N-below
+y
-salt be NaBF
4for example describes.N-methoxy ethyl-N-methyl piperidine villaumite and NaBF
4reaction to obtain the equation of N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid as follows:
Alkylpiperidine halogenide and there is formula M
+y
-the mol ratio of salt can be 1:1.05.Alkylpiperidine halogenide and there is formula M
+y
-the mol ratio of salt be the productive rate that 1:1.05 is conducive to improve piperidines ionic liquid.
The halid ratio of above-mentioned deionized water and Alkylpiperidine can be 200mL ~ 300mL:1mol, makes Alkylpiperidine halogenide and has formula M
+y
-salt in deionized water, can fully dissolve and occur ion exchange reaction.
The churning time of above-mentioned stirring generation ion exchange reaction can be 5h ~ 20h, makes reactant fully contact and react completely.
Separating-purifying can comprise following operation: by the piperidines ionic liquid dichloromethane extraction obtaining, the methylene dichloride then extraction being obtained is used deionized water back extraction mutually, until with saturated AgNO
3till aqueous solution titration water produces without precipitation.Then by the vacuum-drying of methylene dichloride phase, remove methylene dichloride, obtain the piperidines ionic liquid after purifying.
In the present embodiment, reacted solution can be 3 times with the number of times of dichloromethane extraction.Extraction is used for reaction product to be extracted into the organic phase of methylene dichloride, thereby impurity is stayed in water.In other embodiments, extraction times can be also 2 times or 4 inferior, in actually operating, can be as required slective extraction number of times flexibly.
With after dichloromethane extraction, can also with deionized water back extraction repeatedly, until with saturated AgNO
3aqueous solution titration water is until produce without precipitation.Alkylpiperidine halogenide and there is formula M
+y
-reactant salt time, Y
-halogen anion in meeting substituted alkyl piperidines halogenide, has halogen anion and produces after therefore having reacted, and in being soluble in the aqueous phase.Halogen anion and AgNO
3reactant aqueous solution can produce precipitation.Therefore, with saturated AgNO
3aqueous solution titration water is until without precipitation generation, can clean up halogen anion residual in organic phase.Meanwhile, also can further remove other impurity that remain in organic phase.
Before methylene dichloride is removed in vacuum-drying, can be first that the methylene dichloride obtaining is concentrated with Rotary Evaporators, remove organic solvents a large amount of in reaction product.Methylene dichloride is removed in vacuum-drying, concrete, can be dry 48h under the vacuum condition of 80 ℃.
The above-mentioned method of preparing piperidines ionic liquid is first by methyl piperidine with have general formula CH
3o (CH
2)
nthe haloalkane reaction of X obtains Alkylpiperidine halogenide.Then Alkylpiperidine halogenide and there is formula M
+y
-reactant salt, obtain piperidines ionic liquid.It is high that the method has product yield, simple operation and other advantages.
The piperidines il electrolyte of one embodiment, comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
The mass ratio of piperidines ionic liquid and organic solvent is 1 ~ 2:5 ~ 1, and piperidines ionic liquid and organic solvent evenly mix.
Organic solvent can be acetonitrile, propylene carbonate or gamma-butyrolactone etc.
In the organic solvent of piperidines il electrolyte, be evenly mixed with a large amount of piperidines ionic liquids, because piperidines ionic liquid is at room temperature by negatively charged ion and cation composition, there is good electroconductibility, and be not easy volatilization, do not burn, there is good thermostability.Therefore, piperidines il electrolyte also has good thermostability.
The preparation method of above-mentioned piperidines il electrolyte as shown in Figure 2, comprises the following steps:
S210, under shielding gas atmosphere, the methyl piperidine that is 1:1.05 ~ 1.2 by mol ratio and there is general formula CH
3o (CH
2)
nthe haloalkane of X is at 60 ℃ ~ 80 ℃, and stirring reaction obtains crude product, and wherein, X is Cl, Br or I.By crude product washing, after being dried, obtain Alkylpiperidine halogenide.
Alkylpiperidine halogenide has following general structure:
Wherein, n is 2,3 or 4, X
-for Cl
-, Br
-or I
-.
Methyl piperidine and there is general formula CH
3o (CH
2)
ncan there is nucleophilic substitution reaction in the haloalkane of X, wherein, methyl piperidine is nucleophilic reagent.When reaction, methyl piperidine can replace and has general formula CH
3o (CH
2)
nhalogen in the haloalkane of X, halogen leaves has general formula CH
3o (CH
2)
nthe haloalkane of X, thus Alkylpiperidine halogenide obtained.For the ease of understanding, below to there is general formula CH
3o (CH
2)
nthe haloalkane of X is CH
3oCH
2cH
2cl is that example describes.Methyl piperidine and CH
3oCH
2cH
2it is as follows that the reaction of Cl obtains the equation of N-methoxy ethyl-N-methyl piperidine villaumite:
Methyl piperidine and there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X can be 1: 1.1.Methyl piperidine and there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X is that 1:1.1 is conducive to improve the halid productive rate of Alkylpiperidine obtaining.
Shielding gas can be nitrogen (N
2), neon (Ne) or argon gas (Ar) etc., in actual applications, can select as required suitable shielding gas.
The churning time of above-mentioned stirring reaction is 20h ~ 60h, and reactant is fully contacted, and reaction.
The solvent of washing can be ethyl acetate.
Wash and can remove unreacted methyl piperidine and there is general formula CH by ethyl acetate
3o (CH
2)
nthe haloalkane of X, washs and can better dissolve unreacted methyl piperidine and have general formula CH by ethyl acetate
3o (CH
2)
nthe haloalkane of X, makes reaction product purer.
In the present embodiment, the number of times of washing can be 3 times.In other embodiments, can select suitable washing times to remove unreacted methyl piperidine and there is general formula CH according to response situation
3o (CH
2)
nthe haloalkane of X.
Be dried can be for to process crude product under the vacuum condition of 80 ℃.Dry temperature is 80 ℃, and the rate of drying of crude product is faster, and can not destroy product structure.
S220, according to mol ratio 1:1 ~ 1.1 by Alkylpiperidine halogenide with there is formula M
+y
-salt at room temperature add in deionized water, wherein M+ is Na
+, K
+or NH
4 +, Y
-for BF
4 -, PF
6 -, (FSO
2)
2n
-, (CF
3sO
2)
2n
-or CF
3sO
3 -.Stir ion exchange reaction occurs, after separating-purifying, obtain piperidines ionic liquid.
Piperidines ionic liquid has following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
Alkylpiperidine halogenide and there is formula M
+y
-salt generation ion exchange reaction.Y
-carry out ion-exchange with the halid halogen anion of Alkylpiperidine, obtain piperidines ionic liquid.For the ease of understanding, methoxy ethyl-N-methyl piperidine villaumite and there is formula M take Alkylpiperidine halogenide as N-below
+y
-salt be NaBF
4for example describes.N-methoxy ethyl-N-methyl piperidine villaumite and NaBF
4reaction to obtain the equation of N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid as follows:
Alkylpiperidine halogenide and there is formula M
+y
-the mol ratio of salt can be 1:1.05.Alkylpiperidine halogenide and there is formula M
+y
-the mol ratio of salt be the productive rate that 1:1.05 is conducive to improve piperidines ionic liquid.
The halid ratio of above-mentioned deionized water and Alkylpiperidine can be 200mL ~ 300mL:1mol, makes Alkylpiperidine halogenide and has formula M
+y
-salt in deionized water, can fully dissolve and occur ion exchange reaction.
The churning time of above-mentioned stirring generation ion exchange reaction can be 5h ~ 20h, makes reactant fully contact and react completely.
Separating-purifying can comprise following operation: by the piperidines ionic liquid dichloromethane extraction obtaining, the methylene dichloride then extraction being obtained is used deionized water back extraction mutually, until with saturated AgNO
3till aqueous solution titration water produces without precipitation.Then by the vacuum-drying of methylene dichloride phase, remove methylene dichloride, obtain the piperidines ionic liquid after purifying.
In the present embodiment, reacted solution can be 3 times with the number of times of dichloromethane extraction.Extraction is used for reaction product to be extracted into the organic phase of methylene dichloride, thereby impurity is stayed in water.In other embodiments, extraction times can be also 2 times or 4 inferior, in actually operating, can be as required slective extraction number of times flexibly.
With after dichloromethane extraction, also available deionized water back extraction repeatedly, until with saturated AgNO
3aqueous solution titration water is until produce without precipitation.Alkylpiperidine halogenide and there is formula M
+y
-reactant salt time, Y
-halogen anion in meeting substituted alkyl piperidines halogenide, has halogen anion and produces after therefore having reacted, and in being soluble in the aqueous phase.Halogen anion and AgNO
3reactant aqueous solution can produce precipitation.Therefore, with saturated AgNO
3aqueous solution titration water is until without precipitation generation, can clean up halogen anion residual in organic phase.Meanwhile, also can further remove other impurity that remain in organic phase.
Before methylene dichloride is removed in vacuum-drying, can be first that the methylene dichloride obtaining is concentrated with Rotary Evaporators, remove organic solvents a large amount of in reaction product.Methylene dichloride is removed in vacuum-drying, concrete, can be dry 48h under the vacuum condition of 80 ℃.
S230, under shielding gas atmosphere, the piperidines ionic liquid that is 1 ~ 2:5 ~ 1 by mass ratio and organic solvent stir after mixing, and obtain piperidines il electrolyte.
Shielding gas can be nitrogen (N
2), neon (Ne) or argon gas (Ar) etc., in actual applications, can select as required suitable shielding gas.
Organic solvent can be acetonitrile, propylene carbonate or gamma-butyrolactone etc.
The above-mentioned method of preparing piperidines il electrolyte is first by methyl piperidine with have general formula CH
3o (CH
2)
nthe haloalkane reaction of X obtains Alkylpiperidine halogenide.Then Alkylpiperidine halogenide and the reactant salt with formula M+Y-, obtain piperidines ionic liquid.Finally, by piperidines ionic liquid and organic solvent are stirred, obtain piperidines il electrolyte.It is high that the method has product yield, simple operation and other advantages.
The ultracapacitor of one embodiment, comprises shell, positive pole, negative pole and piperidines il electrolyte.
Piperidines il electrolyte is between positive pole and negative pole.
Piperidines il electrolyte comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
The mass ratio of piperidines ionic liquid and organic solvent is 1 ~ 2:5 ~ 1, and piperidines ionic liquid and organic solvent evenly mix.
Above-mentioned ultracapacitor uses piperidines il electrolyte as electrolytic solution, owing to being evenly mixed with a large amount of piperidines ionic liquids in piperidines il electrolyte, and piperidines ionic liquid is at room temperature by negatively charged ion and cation composition, there is good electroconductibility, and be not easy volatilization, do not burn, there is good thermostability.Thereby piperidines il electrolyte also has good thermostability.Therefore, above-mentioned ultracapacitor, compares with the ultracapacitor of traditional use organic electrolyte, safer when use.
Be specific embodiment part below.
Embodiment 1
(1) prepare piperidines ionic liquid.
In the flask of 250mL, add respectively the methyl piperidine of 1mol and the methoxychlor ethane of 1.1mol.At N
2under atmosphere protection, be warming up to 70 ℃, stirring reaction 40h.Leave standstill cooling after by ethyl acetate washing for reaction product three times, then vacuum-drying at 80 ℃, obtains N-methoxy ethyl-N-methyl piperidine villaumite of lurid solid state, productive rate is 80%.
In 250mL flask, add N-methoxy ethyl-N-methyl piperidine villaumite of 0.5mol, the NaBF of 0.53mol
4with 130mL deionized water, at room temperature stir 8h.By dichloromethane extraction 3 times of reacted solution, the consumption of each methylene dichloride is 250mL, combined dichloromethane organic phase.Then by methylene dichloride organic phase with deionized water back extraction repeatedly, the consumption of each deionized water is 60mL, until with saturated AgNO
3aqueous solution titration water is collected methylene dichloride phase till producing without precipitation.This methylene dichloride is concentrated with Rotary Evaporators, then be dried 48 hours under 80 ℃ of vacuum conditions, obtain N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid of colourless liquid shape.
(2) configuration il electrolyte.
At N
2under atmosphere protection; take out 10g N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid; then add wherein 20g acetonitrile, and it is mixed its stirring, thereby obtain N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid electrolytic solution.
Embodiment 2
(1) prepare piperidines ionic liquid.
In the flask of 250mL, add respectively the methyl piperidine of 1mol and the methoxyl group N-PROPYLE BROMIDE of 1.05mol.Under the protection of Ar atmosphere, be warming up to 60 ℃, stirring reaction 60h.Leave standstill cooling after by ethyl acetate washing for reaction product three times, then vacuum-drying at 80 ℃, obtains N-methoxy-propyl-N-methyl piperidine bromine salt of lurid solid state, productive rate is 81%.
In 250mL flask, add N-methoxy-propyl-N-methyl piperidine bromine salt of 0.5mol, the KPF of 0.5mol
6with 100mL deionized water, at room temperature stir 20h, by dichloromethane extraction 3 times of reacted solution, the consumption of each methylene dichloride is 250mL, combined dichloromethane organic phase.Then by methylene dichloride organic phase with deionized water back extraction repeatedly, the consumption of each deionized water is 60mL, until with saturated AgNO
3till aqueous solution titration water produces without precipitation, collect methylene dichloride phase, this methylene dichloride is concentrated with Rotary Evaporators, then be dried 48 hours under 80 ℃ of vacuum conditions, obtain N-methoxy-propyl-N-methyl piperidine hexafluorophosphate ionic liquid of colourless liquid shape.
(2) configuration il electrolyte.
Under the protection of Ar atmosphere; take out 10g N-methoxy-propyl-N-methyl piperidine hexafluorophosphate ionic liquid; then add wherein 50g propylene carbonate, and it is mixed its stirring, thereby obtain N-methoxy-propyl-N-methyl piperidine hexafluorophosphate il electrolyte.
Embodiment 3
(1) prepare piperidines ionic liquid.
In the flask of 250mL, add respectively the methyl piperidine of 1mol and the methoxyl group butyl iodide of 1.2mol.Under the protection of N2 atmosphere, be warming up to 80 ℃, stirring reaction 20h.Leave standstill cooling after by ethyl acetate washing for reaction product three times, then vacuum-drying at 80 ℃, obtains N-methoxyl group butyl-N-methyl piperidine salt compounded of iodine of lurid solid state, productive rate is 83%.
In 250mL flask, add N-methoxyl group butyl-N-methyl piperidine salt compounded of iodine of the 0.5mol, (CF of 0.55mol
3sO
2)
2nK and 150mL deionized water, at room temperature stir 5h, and by dichloromethane extraction 3 times of reacted solution, the consumption of each methylene dichloride is 250mL, combined dichloromethane organic phase.Then by methylene dichloride organic phase with deionized water back extraction repeatedly, the consumption of each deionized water is 60mL, until with saturated AgNO
3till aqueous solution titration water produces without precipitation, collect methylene dichloride phase, this methylene dichloride is concentrated with Rotary Evaporators, then be dried 48 hours under 80 ℃ of vacuum conditions, obtain N-methoxyl group butyl-N-methyl piperidine fluoroform sulfimide salt ion liquid of colourless liquid shape.
(2) configuration il electrolyte.
Under the protection of Ar atmosphere; take out 10g N-methoxyl group butyl-N-methyl piperidine fluoroform sulfimide salt ion liquid; then add wherein 5g gamma-butyrolactone; and it is mixed its stirring, thereby obtain N-methoxyl group butyl-N-methyl piperidine fluoroform sulfimide salt ion liquid electrolyte.
Embodiment 4
(1) prepare piperidines ionic liquid.
In the flask of 250mL, add respectively the methyl piperidine of 1mol and the methoxychlor propane of 1.1mol.Under the protection of Ar atmosphere, be warming up to 65 ℃, stirring reaction 45h.Leave standstill cooling after by ethyl acetate washing for reaction product three times, then vacuum-drying at 80 ℃, obtains N-methoxy-propyl-N-methyl piperidine villaumite of lurid solid state, productive rate is 82%.
In 250mL flask, add N-methoxy-propyl-N-methyl piperidine villaumite of 0.5mol, the CF of 0.52mol
3sO
3nH
4with 120mL deionized water, at room temperature stir 15h, by dichloromethane extraction 3 times of reacted solution, the consumption of each methylene dichloride is 250mL, combined dichloromethane organic phase.Then by methylene dichloride organic phase with deionized water back extraction repeatedly, the consumption of each deionized water is 60mL, until with saturated AgNO
3till aqueous solution titration water produces without precipitation, collect methylene dichloride phase, this methylene dichloride is concentrated with Rotary Evaporators, then be dried 48 hours under 80 ℃ of vacuum conditions, obtain N-methoxy-propyl-N-methyl piperidine fluoroform sulphonate ionic liquid of colourless liquid shape.
(2) configuration il electrolyte.
Under the protection of N2 atmosphere; take out 10g N-methoxy-propyl-N-methyl piperidine fluoroform sulphonate ionic liquid; then add wherein 40g acetonitrile, and it is mixed its stirring, thereby obtain N-methoxy-propyl-N-methyl piperidine fluoroform sulphonate il electrolyte.
Embodiment 5
Add respectively 8.5g specific surface area to be about 800m
2the charcoal-aero gel of/g, 0.4g acetylene black, 0.5g polyvinylidene difluoride (PVDF) (poly (vinylidene fluoride), and 50g N-Methyl pyrrolidone (N-methyl-2-pyrrolido PVDF), NMP) after, fully stir the slurry that obtains mixing.Then by the slurry blade coating mixing on the aluminium foil cleaning through ethanol.Be 0.01MPa in vacuum tightness, temperature be under 100 ℃ of conditions by blade coating the slurry drying on aluminium foil to constant weight.Dried slurry is pressed into activated carbon electrodes in 10MPa pressure lower roll, then activated carbon electrodes is cut into electrode disk.Get two activated carbon electrodes disks respectively as positive pole and negative pole.In the glove box that is full of argon gas, N-methoxy ethyl-N-methyl piperidine tetrafluoroborate ion liquid electrolytic solution that polypropylene diaphragm and embodiment 1 are prepared is placed between positive pole and negative pole, and on stamping machine, button ultracapacitor is made in sealing.
Embodiment 6
Add respectively 8.5g specific surface area to be about 800m
2the charcoal-aero gel of/g, 0.4g acetylene black, 0.5g polyvinylidene difluoride (PVDF) (poly (vinylidene fluoride), and 50g N-Methyl pyrrolidone (N-methyl-2-pyrrolido PVDF), NMP) after, fully stir the slurry that obtains mixing.Then by the slurry blade coating mixing on the aluminium foil cleaning through ethanol.Be 0.01MPa in vacuum tightness, temperature be under 100 ℃ of conditions by blade coating the slurry drying on aluminium foil to constant weight.Dried slurry is pressed into activated carbon electrodes in 10MPa pressure lower roll, then activated carbon electrodes is cut into electrode disk.Get two activated carbon electrodes disks respectively as positive pole and negative pole.In the glove box that is full of argon gas, N-methoxy-propyl-N-methyl piperidine hexafluorophosphate il electrolyte that polypropylene diaphragm and embodiment 2 are prepared is placed between positive pole and negative pole, and on stamping machine, button ultracapacitor is made in sealing.
Embodiment 7
Add respectively 8.5g specific surface area to be about 800m
2the charcoal-aero gel of/g, 0.4g acetylene black, 0.5g polyvinylidene difluoride (PVDF) (poly (vinylidene fluoride), and 50g N-Methyl pyrrolidone (N-methyl-2-pyrrolido PVDF), NMP) after, fully stir the slurry that obtains mixing.Then by the slurry blade coating mixing on the aluminium foil cleaning through ethanol.Be 0.01MPa in vacuum tightness, temperature be under 100 ℃ of conditions by blade coating the slurry drying on aluminium foil to constant weight.Dried slurry is pressed into activated carbon electrodes in 10MPa pressure lower roll, then activated carbon electrodes is cut into electrode disk.Get two activated carbon electrodes disks respectively as positive pole and negative pole.In the glove box that is full of argon gas, N-methoxyl group butyl-N-methyl piperidine fluoroform sulfimide salt ion liquid electrolyte that polypropylene diaphragm and embodiment 3 are prepared is placed between positive pole and negative pole, and on stamping machine, button ultracapacitor is made in sealing.
Embodiment 8
Add respectively 8.5g specific surface area to be about 800m
2the charcoal-aero gel of/g, 0.4g acetylene black, 0.5g polyvinylidene difluoride (PVDF) (poly (vinylidene fluoride), and 50g N-Methyl pyrrolidone (N-methyl-2-pyrrolido PVDF), NMP) after, fully stir the slurry that obtains mixing.Then by the slurry blade coating mixing on the aluminium foil cleaning through ethanol.Be 0.01MPa in vacuum tightness, temperature be under 100 ℃ of conditions by blade coating the slurry drying on aluminium foil to constant weight.Dried slurry is pressed into activated carbon electrodes in 10MPa pressure lower roll, then activated carbon electrodes is cut into electrode disk.Get two activated carbon electrodes disks respectively as positive pole and negative pole.In the glove box that is full of argon gas, N-methoxy-propyl-N-methyl piperidine fluoroform sulphonate il electrolyte that polypropylene diaphragm and embodiment 4 are prepared is placed between positive pole and negative pole, and on stamping machine, button ultracapacitor is made in sealing.
Following table, for utilizing ultracapacitor that charge-discharge test instrument prepared embodiment 5 ~ embodiment 8 in the electrochemical window of 0V ~ 2.7V, is carried out the ratio capacitance data of constant current charge-discharge test with the electric current of 0.75A/g:
| Embodiment | 5 | 6 | 7 | 8 |
| Than electric capacity (F/g) | 135 | 126 | 120 | 132 |
As can be seen from the table, the prepared il electrolyte of embodiment 5 ~ embodiment 8 is suitable as the electrolytic solution of ultracapacitor, and in the electrochemical window of 2.7V, has good capacitance characteristic.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a piperidines ionic liquid, is characterized in that, its general structure is:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
2. a preparation method for piperidines ionic liquid, is characterized in that, comprises the following steps:
Under shielding gas atmosphere, the methyl piperidine that is 1:1.05 ~ 1.2 by mol ratio and there is general formula CH
3o (CH
2)
nthe haloalkane of X is at 60 ℃ ~ 80 ℃, and stirring reaction obtains crude product, and wherein, X is Cl, Br or I, by described crude product washing, obtains having the Alkylpiperidine halogenide of following general structure after being dried:
Wherein, n is 2,3 or 4, X
-for Cl
-, Br
-or I
-;
According to mol ratio 1:1 ~ 1.1 by described Alkylpiperidine halogenide with there is formula M
+y
-salt at room temperature add in deionized water, wherein M
+for Na
+, K
+or NH
4 +, Y
-for BF
4 -, PF
6 -, (FSO
2)
2n
-, (CF
3sO
2)
2n
-or CF
3sO
3 -, stir ion exchange reaction occurs, after separating-purifying, obtain having the piperidines ionic liquid of following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -.
3. the preparation method of piperidines ionic liquid according to claim 2, is characterized in that, described by the operation of described crude product washing, the solvent of described washing is ethyl acetate.
4. the preparation method of piperidines ionic liquid according to claim 2, is characterized in that, described Alkylpiperidine halogenide and have a formula M
+y
-the mol ratio of salt be 1: 1.05.
5. the preparation method of piperidines ionic liquid according to claim 2, it is characterized in that, described separating-purifying comprises following operation: by the described piperidines ionic liquid dichloromethane extraction obtaining, then methylene dichloride extraction being obtained is used deionized water back extraction mutually, until with saturated AgNO
3aqueous solution titration water then by the vacuum-drying of methylene dichloride phase, is removed methylene dichloride till producing without precipitation, obtains the piperidines ionic liquid after purifying.
6. the preparation method of piperidines ionic liquid according to claim 2, is characterized in that, described methyl piperidine and described in there is general formula CH
3o (CH
2)
nthe mol ratio of the haloalkane of X is 1: 1.1.
7. the preparation method of piperidines ionic liquid according to claim 2, is characterized in that, described being dried as processing under the vacuum condition at 80 ℃.
8. a piperidines il electrolyte, is characterized in that, comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -;
The mass ratio of described piperidines ionic liquid and described organic solvent is 1 ~ 2:5 ~ 1, and described piperidines ionic liquid and described organic solvent evenly mix.
9. piperidines il electrolyte according to claim 8, is characterized in that, described organic solvent is acetonitrile, propylene carbonate or gamma-butyrolactone.
10. a ultracapacitor, is characterized in that, comprises shell, positive pole, negative pole and piperidines il electrolyte;
Described piperidines il electrolyte is between positive pole and negative pole;
Described piperidines il electrolyte comprises organic solvent and has the piperidines ionic liquid shown in following general structure:
Wherein, n is 2,3 or 4, Y
-for BF
4 -, PF
6 -, (CF
3sO
2)
2n
-or CF
3sO
3 -;
The mass ratio of described piperidines ionic liquid and described organic solvent is 1 ~ 2:5 ~ 1, and described piperidines ionic liquid and described organic solvent evenly mix.
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|---|---|---|---|
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|---|---|---|---|
| CN201210428462.4A CN103788017A (en) | 2012-10-31 | 2012-10-31 | Piperidines ionic liquid, and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416617A (en) * | 2019-07-17 | 2019-11-05 | 苏州大学 | A kind of high pressure resistant ionic liquid lithium cell electrolyte and lithium battery |
| CN112086683A (en) * | 2019-06-14 | 2020-12-15 | 比亚迪股份有限公司 | Lithium ion battery electrolyte, preparation method thereof, high-voltage lithium ion battery and battery module |
-
2012
- 2012-10-31 CN CN201210428462.4A patent/CN103788017A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112086683A (en) * | 2019-06-14 | 2020-12-15 | 比亚迪股份有限公司 | Lithium ion battery electrolyte, preparation method thereof, high-voltage lithium ion battery and battery module |
| CN110416617A (en) * | 2019-07-17 | 2019-11-05 | 苏州大学 | A kind of high pressure resistant ionic liquid lithium cell electrolyte and lithium battery |
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Application publication date: 20140514 |