CN107086123A - Doping gel capacitor electrolyte based on photocuring and preparation method thereof - Google Patents

Doping gel capacitor electrolyte based on photocuring and preparation method thereof Download PDF

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Publication number
CN107086123A
CN107086123A CN201710212915.2A CN201710212915A CN107086123A CN 107086123 A CN107086123 A CN 107086123A CN 201710212915 A CN201710212915 A CN 201710212915A CN 107086123 A CN107086123 A CN 107086123A
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China
Prior art keywords
solution system
acid
photocuring
solvent
capacitor electrolyte
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CN201710212915.2A
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Chinese (zh)
Inventor
贾明
艾亮
殷宝华
黄家奇
黎际宇
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Central South University
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Central South University
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/022Electrolytes; Absorbents
    • H01G9/035Liquid electrolytes, e.g. impregnating materials

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

Doping gel capacitor electrolyte based on photocuring, is polymerize under the initiation of UV light by solution system I and solution system II and obtained, and the ratio of solution system I and solution system II is 1:4‑4:1;Solution system I is that aqueous electrolyte can also be containing the nanometer Al O for accounting for the mass percent of solution system I 5% 20% in non-aqueous electrolyte, and solution system I;Solution system II includes 85% ~ 95% monomer, 2% 10% crosslinking agent and 0.1% 10% light trigger, and monomer is the high-molecular compound for being capable of device polymerisation or polycondensation reaction containing hydroxyl, the functional group of carbon-carbon double bond class.The electrical conductivity of the doping gel capacitor electrolyte of the present invention can reach that the electrical conductivity than the gel electrolyte without addition nanometer Al O improves nearly by 50%.

Description

Doping gel capacitor electrolyte based on photocuring and preparation method thereof
Technical field
The present invention relates to a kind of electrolyte of aluminium electrolutic capacitor, more particularly to a kind of doping gel electricity based on photocuring Container electrolyte.
Background technology
Electrolyte is one of important composition of aluminium electrolutic capacitor, and aluminium electrolutic capacitor can be divided into liquid according to electrolyte form State alminium electrolytic condenser and the class of solid-state aluminum electrolytic capacitor two, go back the outlet solid gel electrolyte of half liquid half now;But it is this Electrolyte make it that electrolyte conductance is low due to the presence of polymer, it is impossible to meet market needs.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art high there is provided a kind of conductance, and is electrolysed The small doping gel capacitor electrolyte based on photocuring of liquid impedance.
In order to solve the above technical problems, technical scheme proposed by the present invention is:Doping gel capacitor based on photocuring Electrolyte, by solution systemAnd solution systemIt polymerize under the initiation of UV light and obtains, the solution systemAnd solution systemRatio be 1:4-4:1;The solution systemCan also be non-aqueous electrolyte for aqueous electrolyte, and solution system In containing accounting for solution systemMass percent 5%-20% nanometer Al2O3;The solution systemIncluding 85% ~ 95% monomer, 2%-10% crosslinking agent and 0.1%-10% light trigger, the monomer are containing hydroxyl, the functional group of carbon-carbon double bond class It is capable of the high-molecular compound of device polymerisation or polycondensation reaction;The light trigger include photoinitiator184, Photoinitiator907, photoinitiator1173, photoinitiator369 and diphenylethan one kind or many Kind.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the nanometer Al2O3Account for solution body SystemThe 10% of mass percent.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the crosslinking agent includes metering system Acid -2- ethylhexyls, methacrylic acid -2- hydroxy methacrylates, the one of methacrylic acid -2- hydroxy propyl esters and methyl methacrylate Plant or a variety of.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the monomer includes acrylic acid, poly- third Olefin(e) acid, methyl acrylate, the one or more of isobutyl acrylate and EMA.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the solution systemAlso include 65%- 80% solvent, 8%-25% main solute, 2%-20% secondary solute and 0.5%-10% PH conditioning agents, the solvent include alcohols The one or more of solvent, esters solvent and ether solvent, the main solute includes suberic acid, decanedioic acid, azelaic acid, 1, the 6- last of the ten Heavenly stems Alkane dicarboxylic acids, maleic acid ammonium, the one or more of maleic acid hydrogen ammonium and ammonium benzoate;The secondary solute includes ethanedioic acid, the third two Acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, the one or more of glutamic acid and glutamine.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the PH conditioning agents include ethylenediamine, The one or more of triethylamine, triethanolamine and phytic acid.
The above-mentioned doping gel capacitor electrolyte based on photocuring, it is preferred that the alcohols solvent include ethylene glycol, N-butanol, glycerine, diglycol, polyethylene glycol, the one or more of polyvinyl alcohol and diethylene glycol (DEG);The subclass solvent Include the one or more of gamma-butyrolacton, δ-valerolactone, propene carbonate and methyl ethyl carbonate;The ether solvent includes second Glycol methyl ether, ethylene glycol ethyl ether, diethylene glycol monobutyl ether, the one or more of glycol dimethyl ether and n-butyl ether.
A kind of preparation method of the doping gel capacitor electrolyte based on photocuring, it is characterised in that including following step Suddenly, 1)Prepare solution systemAnd solution system, and by solution systemAnd solution systemAccording to 1:4-4:1 ratio is stirred Mix well mixed, mixing time is 10-30 minutes, 1.1) solution systemPreparation, selected solvent Hybrid Heating is arrived 90-120 degrees Celsius, selected main solute and secondary solute is added, 30-60 minutes is incubated at 110-140 degrees Celsius, is cooled to After 100 degrees Celsius, additive is added, and be cooled to room temperature;1.2)Nanometer Al is added at normal temperatures2O3, and under ultrasonic wave Vibration 30-60 minutes so that nanometer Al2O3Diffusion is uniform;1.3)Selected monomer and crosslinking agent are added sequentially to liquid pool In, after being mixed evenly, initiator is added, is stirred 30-50 minutes;
2) under the irradiation of UV lamp, by solution systemAnd solution system, solidified.
The present invention uses the crack type photoinitiator in radical polymerization light trigger, i.e. initiator molecule and absorbs light After energy, excited singlet is transitted to, excited triplet state is arrived through altering jump between being, in its excited singlet or triplet state, molecular structure In unstable state, wherein weak bond can occur homolysis generation primary activity free radical, trigger polymerization.Photoinitiator molecules absorb light After energy, become excited state molecule by ground state and occur Norrish Ι to react, the covalent bond between carbonyl and adjacent carbon atom elongates, weak Change, be broken, generate primary group of free radicals.
X-Y -------(X…Y)`-------X`+Y`
Light trigger, which absorbs, discharges primary group of free radicals so as to trigger monomer to occur radical chain polymerisation after the wavelength of UV lamp, When living radical reacts to form new molecular structure with unsaturated functional group, tertiary carbon free radical can be formed in central carbon atom, It can be such that original addition reaction inversely carries out or the original cross-linked structure of polymer pyrolysis, and regeneration one is using carbon atom in The free radical of the heart, you can inverse addition, addition product fracture and chain transfer reaction.Whole process class is all that a double bond is opened and another The generation of one double bond, by adding crosslinking agent so that the functional group of crosslinking agent occurs freely with resinous polymer cross linked chain The polymerisation of base mediation, promotes the cross linked chain of derivatized polymers to rearrange so that original polymerization shrinkage stress is obtained To discharge, and reaction occurs during whole polymerisation, so as to obtain that crosslink density is moderate, good mechanical properties it is solidifying Colloidal electrolyte.
In the present invention, nanometer Al2O3The transfer ability of gel polymer electrolytes ion can be improved.One side nanometer Al2O3By having an effect for Surface L ewis acid and copolymer chain and ammonium salt, weaken in polymer chain and ammonium salt atom and ammonium from Active force between son, discharging more ammonium ion improves its transfer ability;Another convenience, nanometer Al2O3It is used as polymerization Crosslink part on thing chain, reduces the crystallinity of polymer chain, strengthens the sub-chain motion of polymer, gathers so as to improve gel The transport number of polymer electrolyte ion and the electrical conductivity of ion, the electrical conductivity of doping gel capacitor electrolyte of the invention can Reach, than no addition nanometer Al2O3Gel electrolyte electrical conductivity improve nearly 50%.
Embodiment
For the ease of understanding the present invention, present invention work more comprehensively, is meticulously described below in conjunction with preferred embodiment, But protection scope of the present invention is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting in the middle of other Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention Protection domain.
Embodiment
Doping gel capacitor electrolyte based on photocuring, by solution systemAnd solution systemIn the initiation of UV light Lower polymerization is obtained, the solution systemAnd solution systemRatio be 1:4-4:1;The solution systemFor aqueous electrolyte Can also be non-aqueous electrolyte, and solution systemIn containing accounting for solution systemMass percent 5%-20% nanometer Al2O3;The solution systemInclude the light trigger of 85% ~ 95% monomer, 2%-10% crosslinking agent and 0.1%-10%, it is described Monomer is the macromolecule chemical combination for being capable of device polymerisation or polycondensation reaction containing hydroxyl, the functional group of carbon-carbon double bond class Thing;The light trigger include photoinitiator184, photoinitiator907, photoinitiator1173, Photoinitiator369 and diphenylethan one or more.
In the present invention, nanometer Al2O3Account for solution systemOptimal mass percent is 10%.
In the present invention, crosslinking agent includes methacrylic acid -2- ethylhexyls, methacrylic acid -2- hydroxy methacrylates, methyl-prop The one or more of olefin(e) acid -2- hydroxy propyl esters and methyl methacrylate.
In the present invention, monomer includes acrylic acid, polyacrylic acid, methyl acrylate, isobutyl acrylate and methacrylic acid The one or more of ethyl ester.
In the present invention, solution systemAlso including 65%-80% solvent, 8%-25% main solute, 2%-20% secondary solute and 0.5%-10% PH conditioning agents, the solvent includes the one or more of alcohols solvent, esters solvent and ether solvent, the master Solute includes the one of suberic acid, decanedioic acid, azelaic acid, 1,6- decane dicarboxylic acids, maleic acid ammonium, maleic acid hydrogen ammonium and ammonium benzoate Plant or a variety of;The secondary solute include ethanedioic acid, malonic acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, glutamic acid and The one or more of glutamine.
In the present invention, PH conditioning agents include the one or more of ethylenediamine, triethylamine, triethanolamine and phytic acid.
In the present invention, alcohols solvent includes ethylene glycol, n-butanol, glycerine, diglycol, polyethylene glycol, poly- second The one or more of enol and diethylene glycol (DEG);The subclass solvent includes gamma-butyrolacton, δ-valerolactone, propene carbonate and carbonic acid The one or more of methyl ethyl ester;The ether solvent includes ethylene glycol monomethyl ether, ethylene glycol ethyl ether, diethylene glycol monobutyl ether, ethylene glycol The one or more of dimethyl ether and n-butyl ether.
A kind of preparation method of the doping gel capacitor electrolyte based on photocuring, comprises the following steps, 1)Prepare molten Liquid systemAnd solution system, and by solution systemAnd solution systemAccording to 1:4-4:1 ratio is uniformly mixed, Mixing time is 10-30 minutes, 1.1) solution systemPreparation, selected solvent Hybrid Heating is Celsius to 90-120 Degree, adds selected main solute, secondary solute and nanometer Al2O3, 30-60 minutes are incubated at 110-140 degrees Celsius, 100 are cooled to After degree Celsius, additive is added, and be cooled to room temperature;1.2)Selected monomer and crosslinking agent are added sequentially to liquid pool In, after being mixed evenly, initiator is added, is stirred 30-50 minutes;
2) under the irradiation of UV lamp, by solution systemAnd solution system, solidified.
Embodiment 1
Dicyandiamide solution
Dicyandiamide solution
Photocuring wavelength 300nm, cure times 30s-15min.

Claims (8)

1. the doping gel capacitor electrolyte based on photocuring, it is characterised in that:By solution systemAnd solution systemIn UV Polymerization is obtained under the initiation of light, the solution systemAnd solution systemRatio be 1:4-4:1;The solution systemFor water It is that electrolyte can also be non-aqueous electrolyte, and solution systemIn containing accounting for solution systemMass percent 5%-20%'s Nanometer Al2O3;The solution systemInclude the light trigger of 85% ~ 95% monomer, 2%-10% crosslinking agent and 0.1%-10%, The monomer is the producing high-molecular for being capable of device polymerisation or polycondensation reaction containing hydroxyl, the functional group of carbon-carbon double bond class Compound;The light trigger include photoinitiator184, photoinitiator907, photoinitiator1173, Photoinitiator369 and diphenylethan one or more.
2. the doping gel capacitor electrolyte based on photocuring described in as requested 1, it is characterised in that:The nanometer Al2O3 Account for solution systemThe 10% of mass percent.
3. the doping gel capacitor electrolyte according to claim 1 based on photocuring, it is characterised in that:The crosslinking Agent includes methacrylic acid -2- ethylhexyls, methacrylic acid -2- hydroxy methacrylates, methacrylic acid -2- hydroxy propyl esters and methyl The one or more of methyl acrylate.
4. the doping gel capacitor electrolyte according to claim 1 based on photocuring, it is characterised in that:The monomer Include the one or more of acrylic acid, polyacrylic acid, methyl acrylate, isobutyl acrylate and EMA.
5. the doping gel capacitor electrolyte according to claim 1 based on photocuring, it is characterised in that:The solution SystemAlso include 65%-80% solvent, 8%-25% main solute, 2%-20% secondary solute and 0.5%-10% PH conditioning agents, institute Stating solvent includes the one or more of alcohols solvent, esters solvent and ether solvent, and the main solute includes suberic acid, the last of the ten Heavenly stems two Acid, azelaic acid, 1,6- decane dicarboxylic acids, maleic acid ammonium, the one or more of maleic acid hydrogen ammonium and ammonium benzoate;The secondary solute One kind or many including ethanedioic acid, malonic acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, glutamic acid and glutamine Kind.
6. the doping gel capacitor electrolyte according to claim 5 based on photocuring, it is characterised in that:The PH is adjusted Saving agent includes the one or more of ethylenediamine, triethylamine, triethanolamine and phytic acid.
7. the doping gel capacitor electrolyte according to claim 5 based on photocuring, it is characterised in that:The alcohols Solvent includes one kind or many of ethylene glycol, n-butanol, glycerine, diglycol, polyethylene glycol, polyvinyl alcohol and diethylene glycol (DEG) Kind;The subclass solvent includes the one or more of gamma-butyrolacton, δ-valerolactone, propene carbonate and methyl ethyl carbonate;It is described Ether solvent includes one kind or many of ethylene glycol monomethyl ether, ethylene glycol ethyl ether, diethylene glycol monobutyl ether, glycol dimethyl ether and n-butyl ether Kind.
8. a kind of preparation side of doping gel capacitor electrolyte based on photocuring as described in claim any one of 1-7 Method, it is characterised in that comprise the following steps, 1)Prepare solution systemAnd solution system, and by solution systemAnd solution body SystemAccording to 1:4-4:1 ratio is uniformly mixed, and mixing time is 10-30 minutes, 1.1) solution systemPreparation, will Selected solvent Hybrid Heating adds selected main solute, secondary solute and nanometer Al to 90-120 degrees Celsius2O3, in 110- 140 degrees Celsius are incubated 30-60 minutes, are cooled to after 100 degrees Celsius, add additive, and be cooled to room temperature;1.2)Will be selected Monomer and crosslinking agent are added sequentially in liquid pool, after being mixed evenly, and add initiator, are stirred 30-50 minutes;
2) under the irradiation of UV lamp, by solution systemAnd solution system, solidified.
CN201710212915.2A 2017-04-01 2017-04-01 Doping gel capacitor electrolyte based on photocuring and preparation method thereof Pending CN107086123A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107910185A (en) * 2017-10-26 2018-04-13 南宁市浩发科技有限公司 Electrolyte for aluminum electrolytic capacitor and the aluminium electrolutic capacitor using the electrolyte
CN113085397A (en) * 2021-03-29 2021-07-09 美盈森集团股份有限公司 Full-printing process electrochromic display device and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1315752A (en) * 2000-03-30 2001-10-03 中国科学院物理研究所 Secondary Li ion battery using colloidal polymer as electrolyte and its preparing process
CN103066323A (en) * 2012-12-17 2013-04-24 华中科技大学 Inorganic nanometer particle modified polymer electrolyte and preparation method thereof
CN104538670A (en) * 2014-11-24 2015-04-22 深圳华中科技大学研究院 All-solid polymer electrolyte, and preparation method and application of all-solid polymer electrolyte
CN106252078A (en) * 2016-08-31 2016-12-21 湖南艾华集团股份有限公司 A kind of electrolyte of photocuring gel state aluminium electrolutic capacitor and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1315752A (en) * 2000-03-30 2001-10-03 中国科学院物理研究所 Secondary Li ion battery using colloidal polymer as electrolyte and its preparing process
CN103066323A (en) * 2012-12-17 2013-04-24 华中科技大学 Inorganic nanometer particle modified polymer electrolyte and preparation method thereof
CN104538670A (en) * 2014-11-24 2015-04-22 深圳华中科技大学研究院 All-solid polymer electrolyte, and preparation method and application of all-solid polymer electrolyte
CN106252078A (en) * 2016-08-31 2016-12-21 湖南艾华集团股份有限公司 A kind of electrolyte of photocuring gel state aluminium electrolutic capacitor and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107910185A (en) * 2017-10-26 2018-04-13 南宁市浩发科技有限公司 Electrolyte for aluminum electrolytic capacitor and the aluminium electrolutic capacitor using the electrolyte
CN113085397A (en) * 2021-03-29 2021-07-09 美盈森集团股份有限公司 Full-printing process electrochromic display device and manufacturing method thereof

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Application publication date: 20170822