CN106409513A - Square aluminum electrolytic capacitor based on gel electrolyte and preparation method thereof - Google Patents

Square aluminum electrolytic capacitor based on gel electrolyte and preparation method thereof Download PDF

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Publication number
CN106409513A
CN106409513A CN201610765811.XA CN201610765811A CN106409513A CN 106409513 A CN106409513 A CN 106409513A CN 201610765811 A CN201610765811 A CN 201610765811A CN 106409513 A CN106409513 A CN 106409513A
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acid
series
ammonium
solution system
solvent
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胡少强
艾亮
贾明
黄家奇
张超
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Hunan Aihua Group Co Ltd
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Hunan Aihua Group Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/022—Electrolytes; Absorbents
    • H01G9/025—Solid electrolytes
    • H01G9/028—Organic semiconducting electrolytes, e.g. TCNQ
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/0029—Processes of manufacture
    • H01G9/0036—Formation of the solid electrolyte layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/08—Housing; Encapsulation

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

Abstract

The invention discloses a square aluminum electrolytic capacitor based on a gel electrolyte. The square aluminum electrolytic capacitor comprises a square aluminum shell, a flat and oval-shaped winding type core bag, a rubber plug and a cover plate, and the core bag is sealed in the square aluminum shell by the rubber plug and the cover plate; aluminum stalks of a positive wire and a negative wire of the core bag are hermetically connected with the rubber plug through UV gum or epoxy thermo-curing gum; the gelatinous electrolyte is formed in the core bag and between the core bag and the square aluminum shell; the gelatinous electrolyte is a gelatinous high-molecular compound obtained by polymerizing a solution system as shown in the description and a solution system as shown in the description under the initiation of an initiating agent. The square aluminum electrolytic capacitor disclosed by the invention is small in thickness (width) and great in length, the height can be the same with that of a cylindrical structure aluminum electrolytic capacitor, and the demand of placing an aluminum electrolytic capacitor in a flat space is satisfied while guaranteeing the volume capacity density requirement of the aluminum electrolytic capacitor.

Description

A kind of square aluminium electrolutic capacitor based on gel electrolyte and preparation method thereof
Technical field
The present invention relates to electronic applications, more particularly, to a kind of square aluminium electrolutic capacitor based on gel electrolyte and its system Preparation Method.
Background technology
At present, the aluminium electrolutic capacitor that market can be seen is cylindrical structural design, and this kind of capacitor core bag is logical Cross nail volume machine winding to be obtained, be cylindrical core bag, cylindrical core is comprised to soak and inserts after electrolyte in cylindrical aluminium shell through with a tight waist Group is vertical, prepared cylindrical capacitor.However, some application scenarios, for reducing the volume of integrated circuit, improve volume utilization, A flat space can only be stayed can not to obtain placing aluminium electrolutic capacitor, the space of cylindrical structural aluminium electrolutic capacitor surrounding Effectively utilizes, the volume utilization in flat space is relatively low.On the other hand, under the operating mode of high ripple current, capacitor internal Easily accumulation heat, if heat can not effectively dissipate away, can affect properties of product.Because the structure of capacitor itself is special Point, the radial direction thermal resistance of cylindrical capacitor is big, and rate of heat dispation is slower, if making flat square structure, thickness is less, radiating Speed is fast, the performance of favourable electricity container performance.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide one kind take up room rationally, anode Square aluminium electrolutic capacitor that paper tinsel and Cathode Foil are not easily broken and preparation method thereof.
For solving above-mentioned technical problem, technical scheme proposed by the present invention is：A kind of square aluminum based on gel electrolyte Electrolysis condenser, including square aluminum hull, the takeup type core bag in flattened oval shape, rubber stopper and cover plate, described rubber stopper and lid Core bag is sealed in square aluminum hull plate；The aluminum stalk of the positive wire of described core bag and negative wire passes through UV glue or epoxy thermosetting Change glue to be connected with rubber stopper seal；It is formed with gel electrolyte between described core bag inside and core bag and square aluminum hull；Institute State gel electrolyte and be polymerized, for solution system I and solution system II, the gel producing high-molecular obtaining under the initiation of initiator Compound；The mixing match of described solution system I and solution system II is 1:4-4:1；Described solution system II includes 85%-95% Polymerized monomer, 2%-20% cross-linking agent and 0.1%-10% initiator, described polymerized monomer be the compound containing double bond or It is can the acrylic acid that is polymerized of open loop and its derivant；Described initiator includes thermal initiator or light trigger, described heat Initiator includes one or more of hydrogen peroxide, persulfate and hydroperoxides；Described light trigger includes Photoinitiator184, photoinitiator907, photoinitiator1173, photoinitiator369 and two One or more of Phenyl ethyl ketone.
The thermal initiator that the present invention uses is water solublity, mineral-type, middle warm type, can uniformly be dissolved into the molten of electrolyte In agent, uniform gel state electrolyte can be obtained, effectively prevent other types initiator and be unable to uniform dissolution to electrolyte The partial polymerization bringing in solvent is insufficient, the short-circuit equivalent risk of capacitor internal.Thermal initiator is uniformly distributed in solvent, In the case of heating, thermal initiator itself is decomposed, fracture, forms two initial radical, and trigger monomer free radical is sent out then Raw polyreaction, the ratio of viscosities polymerisation in bulk of the polymerization system obtaining is low, and mixing and radiating are easier, production operation and temperature All easily controllable, the evaporation being also with solvent is to exclude heat of polymerization.
Conventional organic peroxide polymerization initiator is (for example：α, α `- azodiisobutyronitrile) decompose at its own Reaction can produce nitrogen and be solidified with the state in gel internal package bubble, due to bubble while producing free radical Exist it is difficult to obtain uniform gel macromolecule.
In the present invention, thermal initiator molecule contains weak bond, produces two primary group of free radicals by heat resolve, primary free Then trigger monomer produces free radical thus occurring chain initiation reaction polyreaction to occur thus forming gel state to base.As Fig. 1 institute It is shown as the schematic diagram that persulfate initiator heat resolve becomes free radical.
In polymerization process, initiation is divided into the following steps:(1) initiator resolves into initial radical in aqueous phase；(2) initial Free radical causes polymerization in aqueous phase (electrolyte even all can have the presence of water in process for preparation after the completion of preparing)；(3) Initial radical monomer in aqueous phase is diffused in emulsion particle or in monomer droplet；(4) free radical causes polymerization in emulsion particle, Generate high molecular polymer so that emulsion particle is constantly grown up.
First stage, emulsion particle generated the phase one by one.From starting to cause polymerization, until the micelle that emulsifying agent is formed disappears, polymerization Increasing rate.The free radical producing in aqueous phase diffuses in micelle, carries out causing, increases, and constantly forms emulsion particle, water simultaneously In phase, monomer can also cause polymerization, and absorption emulsifier molecules form emulsion particle.With proceeding of initiation polymerization, solubilized glue Restraint continuous nucleation, emulsion particle is on the increase or is increased, when monomer conversion 15% about, micelle all disappears, do not re-form new Emulsion particle, later cause polymerization carry out in latex intragranular completely.
The second stage constant speed phase one by one.After micelle disappears, polymerization enters second stage.Chain causes, increases and terminating reaction Continue to carry out in latex intragranular, drop still plays a part warehouse, constantly supply monomer to emulsion particle.Monomer concentration in emulsion particle Keep constant, add that latex grain number is constant, the rate of polymerization in this stage is also substantially certain.Monomer conversion reaches 50% about, Drop all disappears, and monomer fully enters emulsion particle, starts to proceed to the phase III.
The reduction of speed phase one by one phase III.Latex intragranular is made up of monomer and polymer two parts, and the free radical in water is permissible Continue to diffuse into emulsion particle to cause or terminate, but monomer no supplements source again, rate of polymerization is by with latex intragranular monomer concentration Reduce and reduce, until polymerization completes.
Light trigger is that a class absorbs certain wavelength in ultraviolet region (250-420nm) or visible region (400-800nm) Energy, produce free radical, cation etc. thus the compound of trigger monomer polymerization crosslinking solidification
The present invention uses the crack type photoinitiator in radical polymerization light trigger, and that is, initiator molecule absorbs luminous energy Afterwards, transit to excited singlet, through being between alter jump arrive excited triplet state, in its excited singlet or triplet state, molecular structure is in Labile state, wherein weak bond can occur homolysis to produce primary activity free radical, cause polymerization.Photoinitiator molecules absorb luminous energy Afterwards, excited state molecule is become by ground state and Norrish Ι reaction occurs, covalent bond between carbonyl and adjacent carbon atom elongates, weak Change, rupture, generate primary group of free radicals.
X-Y-------(X…Y)`-------X`+Y`
Primary group of free radicals is discharged thus trigger monomer occurs radical chain polyreaction after the wavelength of light trigger absorption UV lamp, Living radical and unsaturated functional group react when forming new molecular structure, and central carbon atom can form tertiary carbon free radical, It can make the cross-linked structure that original additive reaction is inversely carried out or polymer pyrolysis are original, during regeneration one with carbon atom is 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 separately The generation of one double bond, is making the functional group of cross-linking agent and resinous polymer cross linked chain occur freely by adding cross-linking agent The polyreaction of base mediation, promotes the cross linked chain of derivatized polymers to rearrange so that original polymerization shrinkage stress obtains To discharge, and react and occur during whole polyreaction, thus obtaining that crosslink density is moderate, good mechanical properties solidifying Colloidal electrolyte.
The above-mentioned square aluminium electrolutic capacitor based on gel electrolyte it is preferred that described monomer include acrylic acid, poly- third One or more of olefin(e) acid, acrylic acid methyl ester., Isobutyl 2-propenoate and ethyl methacrylate.
The above-mentioned square aluminium electrolutic capacitor based on gel electrolyte is it is preferred that described cross-linking agent includes metering system The one of acid -2- Octyl Nitrite, methacrylic acid -2- hydroxy methacrylate, methacrylic acid -2- hydroxy propyl ester and methyl methacrylate Plant or multiple.Cross-linking agent is the comonomer of gel state electrolyte, and the polymerization obtaining can be controlled to produce by the change of addition The character of thing, viscosity, hardness.
The above-mentioned square aluminium electrolutic capacitor based on gel electrolyte is it is preferred that described solution system I is light-initiated system Row or thermal initiation series；Described thermal initiation series includes the thermal initiation series main solvent of 45%-65%, the heat of 15%-25% is drawn Send out serial secondary solvent, the main solute of thermal initiation series of 8-25%, the thermal initiation series pair solute of 2%-5% and 0.5%- 3% thermal initiation series additive；Described thermal initiation series main solvent can be ethylene glycol, described thermal initiation series secondary solvent Including water, glycerol, glycerol, propylene glycol and BDO one or more；The serial main solute of described thermal initiation includes fourth Diacid, 1,3-propanedicarboxylic acid, adipic acid, ammonium adipate, ammonium octanedioic acid, ammonium azelate, ammonium sebacate, 1,7- ammonium sebacate, isosebacic acid Ammonium, alkyl ammonium sebacate, dodecandioic acid ammonium, one or more of 2- hexyl adipic acid；Described thermal initiation series pair solute includes Boric acid, polyvinyl alcohol, Polyethylene Glycol, butylphosphoric acid ester, phosphoric acid mono-n-butylester, ammonium pentaborate, phthalic acid, terephthalic acids, citric acid One or more, improve the electrical conductivity of electrolyte by adding secondary solute；Described thermal initiation series additive includes nitration Compound, including paranitrophenol, onitrophenol, meta-dinitro-benzent, paranitroanisole or p nitrobenzyl alcohol, ortho phosphorous acid One or more of ammonium.
It is stable that the main solvent of the thermal initiation series of the present invention possesses following feature 1, physical and chemical performance；2nd, have relatively low Freezing point and higher boiling point；3rd, there is higher dissolubility to selected solute or additive；4th, there is corruption in discord aluminium foil The chemical reactions such as erosion；5th, relative low price.
Main solvent is often difficult to have both above-mentioned performance simultaneously, needs to add secondary solvent to improve correlated performance, the present invention Middle selection dielectric constant is larger, the excellent secondary solvent of high temperature performance, on the one hand can improve main solvent property at high and low temperature, separately On the one hand, two kinds of different solvents systems interact, and are conducive to improving solvation, increase dissolubility and the ionization of solute Degree.
In thermal initiation series, auxiliary additive includes waterproof mixture and disappear hydrogen agent, wherein waterproof mixture, such as：Ammonium hypophosphite Can suppress alumite that hydration occurs, extend capacitor service life, disappear hydrogen agent, such as：To paranitrophenol, adjacent nitro Phenol, meta-dinitro-benzent, paranitroanisole can Electolyte-absorptive repair oxide-film during negative electrode produce hydrogen, from And it is prevented effectively from the undesirable conditions such as the prominent, valve opening in capacitor bottom.
The above-mentioned square aluminium electrolutic capacitor based on gel electrolyte is it is preferred that described light-initiated series includes 65%- 80% light-initiated range of solvents, the light-initiated serial main solute of 8%-25%, 2%-20% light-initiated series pair solute and The light-initiated Series P H regulator of 0.5%-10%, described light-initiated range of solvents includes alcohols solvent, esters solvent and ethers One or more of solvent, described light-initiated serial main solute include suberic acid, decanedioic acid, Azelaic Acid, 1,6- decane dicarboxylic acid, One or more of maleic acid ammonium, maleic acid hydrogen ammonium and ammonium benzoate；Described light-initiated series pair solute include ethanedioic acid, the third two One or more of acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, glutamic acid and L-Glutamine, secondary molten by adding Matter is improving the electrical conductivity of electrolyte；Described light-initiated Series P H regulator includes ethylenediamine, triethylamine, triethanolamine and phytic acid One or more.
The above-mentioned square aluminium electrolutic capacitor based on gel electrolyte it is preferred that described alcohols solvent include ethylene glycol, One or more of n-butyl alcohol, glycerol, diglycol, Polyethylene Glycol, polyvinyl alcohol and diethylene glycol；Described esters solvent Including gamma-butyrolacton, δ-valerolactone, Allyl carbonate and Ethyl methyl carbonate one or more；Described ether solvent includes second One or more of glycol methyl ether, ethylene glycol, diethylene glycol monobutyl ether, glycol dimethyl ether and n-butyl ether.
A kind of preparation method of the square aluminium electrolutic capacitor based on gel electrolyte described above, comprises the following steps, 1) electricity container up- coiler, continuously will lead chaff punching press nail riveting in Cathode Foil and anode foils；2) using the instrument that cuts by the moon Pole paper tinsel, anode foils and electrolytic paper cut to pre-set dimension；The anode in anode foils cutting out leads chaff from anode foils on one side Distance be anode foils width 1/4；
3) anode foils, Cathode Foil and electrolytic paper are wound into flattened oval shape takeup type core bag on the winder；
4) prepare solution system I and solution system II, and by solution system I and solution system II according to 1:4-4:1 ratio is stirred Mix mix homogeneously, mixing time is 10-30 minute；
4.1) preparation of described solution system I includes the preparation of light-initiated series and the preparation of thermal initiation series, described thermal initiation The compound method of series is that main solvent and secondary solvent are mixed and heated 90-120 degree Celsius, adds main solute and pair molten Matter, is incubated 30-60 minute at a temperature of 110-140 degree Celsius, is cooled to 100 degrees Celsius of addition additives, and is cooled to room Temperature；Described light-initiated serial being formulated as selected solvent Hybrid Heating to 90-120 degree Celsius, the selected master of addition Solute and secondary solute, are incubated 30-60 minute at 110-140 degree Celsius, after being cooled to 100 degrees Celsius, add additive, and cold But to room temperature；
4.2) described solution system II be formulated as selected monomer and cross-linking agent are added sequentially in liquid pool, mixing is stirred After mixing uniformly, add initiator, stir 30-50 minute；
5) with vacuum impregnation method by step 3) in core comprise to soak the mixed solution of solution system I and solution system II；
6) solidified under the irradiation of UV lamp or in the baking oven that temperature is 65 DEG C～105 DEG C, described oven for curing Time is 20 minutes -4 hours；The irradiation time of described UV lamp is 5 seconds -5 minutes；
7) by step 6) anode wrapped of SMIS leads chaff ultrasonic welding device and welds together；
8) with vacuum plastic sealing machine by step 7) in core bag be sealed in square aluminum hull.
Compared with prior art, it is an advantage of the current invention that：The square aluminium electrolutic capacitor of the present invention is under equal electric capacity Much less than general cylindrical capacitor diameter of thickness, the sky that the square aluminium electrolutic capacitor of the present invention takies in a thickness direction Between few, improve the volume capacity density that ensure that capacitor, improve the utilization rate to space.The square alminium electrolytic condenser of the present invention The core bag of device is in flattened oval shape, after the coiling, because the angle of anode foils and Cathode Foil knee is compared with traditional square aluminium electroloysis The angle of capacitor is big, therefore the pressure of anode foils and Cathode Foil knee is little, be not easily broken.The square alminium electrolytic condenser of the present invention Solve traditional square aluminium electrolutic capacitor aluminum hull and open using UV glue or the sealing of epoxy thermosetting glue at the square aluminum shell opener of device The bad situation of sealing effectiveness at mouthful.
The present invention is to meet the demand that aluminium electrolutic capacitor is placed in flat space, increases space availability ratio and optimizes capacitor Radiating, devises a kind of aluminium electrolutic capacitor of square structure, this kind of square structure aluminium electrolutic capacitor thickness (width) is little, long Degree is big, highly can identical with cylindrical structural aluminium electrolutic capacitor it is ensured that aluminium electrolutic capacitor volume capacity density requirements Meanwhile, meet the demand that aluminium electrolutic capacitor is placed in flat space.
Brief description
Fig. 1 is the structural representation of square aluminium electrolutic capacitor in the embodiment of the present invention 1.
Marginal data
1st, square aluminum hull；2nd, core bag；3rd, rubber stopper；4th, cover plate；5th, positive wire；6th, negative wire.
Specific embodiment
For the ease of understanding the present invention, below in conjunction with Figure of description and preferred embodiment, the present invention is made more complete Face, meticulously describe, 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 fix, affixed, connect or connection is on another element or by connecting in the middle of other Fitting is indirectly fixing, affixed, connect or connection is on another element.
Unless otherwise defined, the implication that all technical term used hereinafter is generally understood that with those skilled in the art Identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit the present invention Protection domain.
Embodiment 1
A kind of square aluminium electrolutic capacitor based on gel electrolyte as shown in Figure 1, including square aluminum hull 1, in flattened oval Core bag 2 is sealed in square aluminum hull 1 for the takeup type core bag 2 of shape, rubber stopper 3 and cover plate 4, rubber stopper 3 and cover plate 4；Core bag 2 The aluminum stalk of positive wire 5 and negative wire 6 is connected with rubber stopper seal by UV glue or epoxy thermosetting glue；Inside core bag 2 with And between core bag 2 and square aluminum hull 1, it is formed with gel electrolyte；Gel electrolyte is solution system I and solution system II It is polymerized the gel macromolecular compound obtaining under the initiation of initiator；Solution system I and the mixing match of solution system II For 1:4-4:1；Solution system II includes 85%-95% polymerized monomer, 2%-20% cross-linking agent and 0.1%-10% initiator, gathers Closing monomer is the compound containing double bond or can the acrylic acid that is polymerized of open loop and its derivant；Initiator includes heat and draws Send out agent or light trigger, thermal initiator includes one or more of hydrogen peroxide, persulfate and hydroperoxides；Light-initiated Agent include photoinitiator184, photoinitiator907, photoinitiator1173, Photoinitiator369 and one or more of diphenylethan.
In the present embodiment, monomer includes acrylic acid, polyacrylic acid, acrylic acid methyl ester., Isobutyl 2-propenoate and metering system One or more of acetoacetic ester.
In the present embodiment, cross-linking agent includes methacrylic acid -2- Octyl Nitrite, methacrylic acid -2- hydroxy methacrylate, methyl 2-hydroxypropyl acrylate and one or more of methyl methacrylate.
In the present embodiment, solution system I is light-initiated series or thermal initiation series；Thermal initiation series includes 45%-65% Thermal initiation series main solvent, the thermal initiation series secondary solvent of 15%-25%, the thermal initiation main solute of series of 8-25%, The thermal initiation series pair solute of 2%-5% and the thermal initiation series additive of 0.5%-3%；Thermal initiation series main solvent is permissible For ethylene glycol, thermal initiation series secondary solvent includes one or more of water, glycerol, glycerol, propylene glycol and BDO； The thermal initiation main solute of series include succinic acid, 1,3-propanedicarboxylic acid, adipic acid, ammonium adipate, ammonium octanedioic acid, ammonium azelate, ammonium sebacate, 1,7- ammonium sebacate, isosebacic acid ammonium, alkyl ammonium sebacate, dodecandioic acid ammonium, one or more of 2- hexyl adipic acid；Heat is drawn Send out series pair solute and include boric acid, polyvinyl alcohol, Polyethylene Glycol, butylphosphoric acid ester, phosphoric acid mono-n-butylester, ammonium pentaborate, phthalic acid, right Phthalic acid, one or more of citric acid；Thermal initiation series additive includes nitro compound, including paranitrophenol, adjacent nitre Base phenol, meta-dinitro-benzent, paranitroanisole or p nitrobenzyl alcohol, one or more of ammonium hypophosphite.
In the present embodiment, light-initiated series includes the light-initiated range of solvents of 65%-80%, the light-initiated system of 8%-25% Arrange main solute, the light-initiated series pair solute of 2%-20% and the light-initiated Series P H regulator of 0.5%-10%, light-initiated system Row solvent includes one or more of alcohols solvent, esters solvent and ether solvent, light-initiated serial main solute include suberic acid, One or more of decanedioic acid, Azelaic Acid, 1,6- decane dicarboxylic acid, maleic acid ammonium, maleic acid hydrogen ammonium and ammonium benzoate；Light-initiated Series pair solute includes ethanedioic acid, malonic acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, glutamic acid and L-Glutamine One or more；Light-initiated Series P H regulator includes one or more of ethylenediamine, triethylamine, triethanolamine and phytic acid.
In the present embodiment, alcohols solvent includes ethylene glycol, n-butyl alcohol, glycerol, diglycol, Polyethylene Glycol, gathers Vinyl alcohol and one or more of diethylene glycol；Esters solvent includes gamma-butyrolacton, δ-valerolactone, Allyl carbonate and carbonic acid first One or more of ethyl ester；Ether solvent includes ethylene glycol monomethyl ether, ethylene glycol, diethylene glycol monobutyl ether, glycol dimethyl ether With n-butyl ether one or more.
The preparation method of the square aluminium electrolutic capacitor based on gel electrolyte of the present embodiment, comprises the following steps, 1) Electricity container up- coiler, continuously will lead chaff punching press nail riveting in Cathode Foil and anode foils；2) using the instrument that cuts by negative electrode Paper tinsel, anode foils and electrolytic paper cut to pre-set dimension；The anode in anode foils cutting out leads chaff from anode foils one side Distance is the 1/4 of anode foils width；
3) anode foils, Cathode Foil and electrolytic paper are wound into flattened oval shape takeup type core bag on the winder；
4) prepare solution system I and solution system II, and by solution system I and solution system II according to 1:4-4:1 ratio is stirred Mix mix homogeneously, mixing time is 10-30 minute；
4.1) preparation of solution system I includes the preparation of light-initiated series and the preparation of thermal initiation series, serial the joining of thermal initiation Method processed is that main solvent and secondary solvent are mixed and heated 90-120 degree Celsius, adds main solute and secondary solute, in 110- It is incubated 30-60 minute at a temperature of 140 degrees Celsius, be cooled to 100 degrees Celsius of addition additives, and be cooled to room temperature；Light-initiated Being formulated as selected solvent Hybrid Heating to 90-120 degree Celsius of series, adds selected main solute and secondary solute, It is incubated 30-60 minute at 110-140 degree Celsius, after being cooled to 100 degrees Celsius, add additive, and be cooled to room temperature；
4.2) solution system II be formulated as selected monomer and cross-linking agent are added sequentially in liquid pool, mix and blend is equal After even, add initiator, stir 30-50 minute；
5) with vacuum impregnation method by step 3) in core comprise to soak the mixed solution of solution system I and solution system II；
6) solidified under the irradiation of UV lamp or in the baking oven that temperature is 65 DEG C～105 DEG C, oven for curing time For 20 minutes -4 hours；The irradiation time of UV lamp is 5 seconds -5 minutes；
7) by step 6) anode wrapped of SMIS leads chaff ultrasonic welding device and welds together；
8) with vacuum plastic sealing machine by step 7) in core bag be sealed in square aluminum hull.
In the present embodiment, solution system I：
Composition Mass percent
Ethylene glycol 60%
Water 10%
Glycerol 15%
Sorbitol 5%
Ammonium pentaborate 10%
Dicyandiamide solution II：
Composition Mass percent
Acrylic acid 85%
Methacrylate 10%
Ammonium persulfate. 5%
80 DEG C -105 DEG C of heat curing temperature, thermal curing time 30min-2h.

Claims (7)

1. a kind of square aluminium electrolutic capacitor based on gel electrolyte it is characterised in that：Including square aluminum hull, in flattened oval Core bag is sealed in square aluminum hull for the takeup type core bag of shape, rubber stopper and cover plate, described rubber stopper and cover plate；Described core bag The aluminum stalk of positive wire and negative wire is connected with rubber stopper seal by UV glue or epoxy thermosetting glue；Inside described core bag with And between core bag and square aluminum hull, it is formed with gel electrolyte；Described gel electrolyte is solution systemAnd solution system It is polymerized the gel macromolecular compound obtaining under the initiation of initiator；Described solution systemAnd solution systemMixing join Than for 1:4-4:1；Described solution systemIncluding 85%-95% polymerized monomer, 2%-20% cross-linking agent and 0.1%-10% initiator, institute Stating polymerized monomer is the compound containing double bond or can the acrylic acid that is polymerized of open loop and its derivant；Described initiator Including thermal initiator or light trigger, described thermal initiator includes one kind of hydrogen peroxide, persulfate and hydroperoxides Or it is multiple；Described light trigger include photoinitiator184, photoinitiator907, Photoinitiator1173, photoinitiator369 and one or more of diphenylethan.
2. the square aluminium electrolutic capacitor based on gel electrolyte according to claim 1 it is characterised in that：Described monomer Including acrylic acid, polyacrylic acid, acrylic acid methyl ester., Isobutyl 2-propenoate and ethyl methacrylate one or more.
3. the square aluminium electrolutic capacitor based on gel electrolyte according to claim 1 it is characterised in that：Described crosslinking Agent includes methacrylic acid -2- Octyl Nitrite, methacrylic acid -2- hydroxy methacrylate, methacrylic acid -2- hydroxy propyl ester and methyl One or more of acrylic acid methyl ester..
4. the square aluminium electrolutic capacitor based on gel electrolyte according to claim 1 it is characterised in that：Described solution SystemFor light-initiated series or thermal initiation series；The thermal initiation series main solvent of described thermal initiation series inclusion 45%-65%, The thermal initiation series secondary solvent of 15%-25%, the thermal initiation main solute of series of 8-25%, 2%-5% thermal initiation series pair solute with And the thermal initiation series additive of 0.5%-3%；Described thermal initiation series main solvent can be ethylene glycol, and described thermal initiation series is auxiliary Cosolvent includes one or more of water, glycerol, glycerol, propylene glycol and BDO；The serial main solute of described thermal initiation Including succinic acid, 1,3-propanedicarboxylic acid, adipic acid, ammonium adipate, ammonium octanedioic acid, ammonium azelate, ammonium sebacate, 1,7- ammonium sebacate, different Ammonium sebacate, alkyl ammonium sebacate, dodecandioic acid ammonium, one or more of 2- hexyl adipic acid；Described thermal initiation series is secondary molten Matter includes boric acid, polyvinyl alcohol, Polyethylene Glycol, butylphosphoric acid ester, phosphoric acid mono-n-butylester, ammonium pentaborate, phthalic acid, terephthalic acids, lemon One or more of lemon acid；Described thermal initiation series additive includes nitro compound, including paranitrophenol, ortho-nitrophenyl Phenol, meta-dinitro-benzent, paranitroanisole or p nitrobenzyl alcohol, one or more of ammonium hypophosphite.
5. the square aluminium electrolutic capacitor based on gel electrolyte according to claim 1 it is characterised in that：Described light draws Send out the serial light-initiated range of solvents including 65%-80%, the light-initiated serial main solute of 8%-25%, the light-initiated series of 2%-20% Secondary solute and the light-initiated Series P H regulator of 0.5%-10%, described light-initiated range of solvents includes alcohols solvent, esters solvent With one or more of ether solvent, described light-initiated serial main solute includes suberic acid, decanedioic acid, Azelaic Acid, 1,6- decane One or more of dicarboxylic acids, maleic acid ammonium, maleic acid hydrogen ammonium and ammonium benzoate；Described light-initiated series pair solute includes second two One or more of acid, malonic acid, adipic acid, ammonium adipate, salicylic acid, ammonium salicylate, glutamic acid and L-Glutamine；Described light Initiation Series P H regulator includes one or more of ethylenediamine, triethylamine, triethanolamine and phytic acid.
6. the square aluminium electrolutic capacitor based on gel electrolyte according to claim 5 it is characterised in that：Described alcohols Solvent includes one kind of ethylene glycol, n-butyl alcohol, glycerol, diglycol, Polyethylene Glycol, polyvinyl alcohol and diethylene glycol or many Kind；Described esters solvent includes one or more of gamma-butyrolacton, δ-valerolactone, Allyl carbonate and Ethyl methyl carbonate；Described Ether solvent includes one kind of ethylene glycol monomethyl ether, ethylene glycol, diethylene glycol monobutyl ether, glycol dimethyl ether and n-butyl ether or many Kind.
7. the preparation side of the square aluminium electrolutic capacitor based on gel electrolyte as described in a kind of any one as claim 1-6 Method it is characterised in that：Comprise the following steps, 1）Electricity container up- coiler, continuously will lead chaff punching press nail riveting arrive Cathode Foil with In anode foils；2）Using the instrument that cuts, Cathode Foil, anode foils and electrolytic paper are cut to pre-set dimension；The anode foils cutting out On anode lead chaff with a distance from anode foils one side be anode foils width 1/4；
3）Anode foils, Cathode Foil and electrolytic paper are wound into flattened oval shape takeup type core bag on the winder；
4）Prepare solution systemAnd solution system, and by solution systemAnd solution systemAccording to 1:4-4:1 ratio stirring Mix homogeneously, mixing time is 10-30 minute；
4.1）Described solution systemPreparation include light-initiated series preparation and thermal initiation series preparation, described thermal initiation system The compound method of row is that main solvent and secondary solvent are mixed and heated 90-120 degree Celsius, adds main solute and secondary solute, It is incubated 30-60 minute at a temperature of 110-140 degree Celsius, be cooled to 100 degrees Celsius of addition additives, and be cooled to room temperature； Described light-initiated serial being formulated as selected solvent Hybrid Heating to 90-120 degree Celsius, the selected main solute of addition With secondary solute, it is incubated 30-60 minute at 110-140 degree Celsius, after being cooled to 100 degrees Celsius, add additive, and be cooled to Room temperature；
4.2）Described solution systemBe formulated as selected monomer and cross-linking agent are added sequentially in liquid pool, mixing is stirred After mixing uniformly, add initiator, stir 30-50 minute；
5）With vacuum impregnation method by step 3）In core comprise soak solution systemAnd solution systemMixed solution；
6）It is to be solidified in 65 DEG C ~ 105 DEG C of baking oven under the irradiation of UV lamp or in temperature, when described oven for curing Between be 20 minutes -4 hours；The irradiation time of described UV lamp is 5 seconds -5 minutes；
7）By step 6）The anode that SMIS is wrapped is led chaff ultrasonic welding device and is welded together；
8）With vacuum plastic sealing machine by step 7）In core bag be sealed in square aluminum hull.
CN201610765811.XA 2016-08-31 2016-08-31 Square aluminum electrolytic capacitor based on gel electrolyte and preparation method thereof Pending CN106409513A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106601482A (en) * 2017-01-25 2017-04-26 广东风华高新科技股份有限公司 Electrolytic capacitor and preparation method thereof
CN107039183A (en) * 2017-04-29 2017-08-11 宁波市华谦电子有限公司 Semi-solid preparation high-pressure aluminum electrolytic capacitor working electrolyte
CN108538587A (en) * 2018-03-01 2018-09-14 湖南艾华集团股份有限公司 A kind of aluminium electrolutic capacitor and preparation method thereof
CN110690050A (en) * 2019-10-15 2020-01-14 厦门法拉和信电子有限公司 Novel gel electrolyte manufacturing method and aluminum electrolytic capacitor
CN110730994A (en) * 2018-10-09 2020-01-24 丰宾电子（深圳）有限公司 Hybrid aluminum electrolytic capacitor and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317512A (en) * 2001-05-25 2001-10-17 复旦大学 Process for preparing gel-state lithium ion polymer as electrolyte and bettery
CN1330107A (en) * 2001-07-12 2002-01-09 复旦大学 Optically triggered polymerization process for preparing electrolyte film of gel-state lithium ion polymer
CN101887803A (en) * 2010-06-23 2010-11-17 东莞万利信新材料元件有限公司 Ultrahigh pressure large-scale aluminum electrolytic capacitor and driving electrolyte thereof
CN105489379A (en) * 2016-01-13 2016-04-13 湖南艾华集团股份有限公司 Square aluminum electrolytic capacitor and manufacturing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317512A (en) * 2001-05-25 2001-10-17 复旦大学 Process for preparing gel-state lithium ion polymer as electrolyte and bettery
CN1330107A (en) * 2001-07-12 2002-01-09 复旦大学 Optically triggered polymerization process for preparing electrolyte film of gel-state lithium ion polymer
CN101887803A (en) * 2010-06-23 2010-11-17 东莞万利信新材料元件有限公司 Ultrahigh pressure large-scale aluminum electrolytic capacitor and driving electrolyte thereof
CN105489379A (en) * 2016-01-13 2016-04-13 湖南艾华集团股份有限公司 Square aluminum electrolytic capacitor and manufacturing method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106601482A (en) * 2017-01-25 2017-04-26 广东风华高新科技股份有限公司 Electrolytic capacitor and preparation method thereof
CN107039183A (en) * 2017-04-29 2017-08-11 宁波市华谦电子有限公司 Semi-solid preparation high-pressure aluminum electrolytic capacitor working electrolyte
CN108538587A (en) * 2018-03-01 2018-09-14 湖南艾华集团股份有限公司 A kind of aluminium electrolutic capacitor and preparation method thereof
CN110730994A (en) * 2018-10-09 2020-01-24 丰宾电子（深圳）有限公司 Hybrid aluminum electrolytic capacitor and manufacturing method thereof
EP3671781A4 (en) * 2018-10-09 2021-03-10 CapXon Electronic (Shenzhen) Co., Ltd Hybrid aluminum electrolytic capacitor and manufacturing method therefor
CN110690050A (en) * 2019-10-15 2020-01-14 厦门法拉和信电子有限公司 Novel gel electrolyte manufacturing method and aluminum electrolytic capacitor

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