CN103911088A - Acrylic ester pressure-sensitive adhesive tape and preparation method thereof and lithium ion battery - Google Patents
Acrylic ester pressure-sensitive adhesive tape and preparation method thereof and lithium ion battery Download PDFInfo
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- CN103911088A CN103911088A CN201410165149.5A CN201410165149A CN103911088A CN 103911088 A CN103911088 A CN 103911088A CN 201410165149 A CN201410165149 A CN 201410165149A CN 103911088 A CN103911088 A CN 103911088A
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- 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
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides an acrylic ester pressure-sensitive adhesive tape and a preparation method of the acrylic ester pressure-sensitive adhesive tape and a lithium ion battery using the acrylic ester pressure-sensitive adhesive tape. The acrylic ester pressure-sensitive adhesive tape comprises a substrate and pressure-sensitive adhesive on the surface of the substrate, wherein the pressure-sensitive adhesive comprises an acrylic ester copolymer and a crosslinking and curing agent; the acrylic ester copolymer is obtained by the polymerization of acrylic ester monomers; the acrylic ester monomers comprise a first acrylic ester monomer, a second acrylic ester monomer and a third acrylic ester monomer; the first acrylic ester monomer comprises the acrylic ester monomer with low glass-transition temperature; the second acrylic ester monomer comprises the acrylic ester monomer with high glass-transition temperature; the third acrylic ester monomer comprises functional acrylic ester monomer. The acrylic ester pressure-sensitive adhesive tape is easy to produce, convenient to use, and low in cost, has sufficient viscosity and durability, and can withstand long-time soaking in electrolyte.
Description
Technical field
The present invention relates to a kind of acrylate pressure-sensitive adhesive band and preparation method thereof and the lithium ion battery that uses this acrylate pressure-sensitive adhesive band.
Background technology
Lithium ion battery belongs to the important a kind of product of new forms of energy, has the advantages such as pollution-free, capacity is high, have extended cycle life, and is widely used at present the fields such as automobile power cell, instrument battery, the network energy, requires also more and more higher to its safety performance etc.
At present, in the assembling production process of lithium ion battery, generally use the battery core of adhesive tape to lithium ion battery, lug and termination position are fixed, insulate and protect, and simple cost is low.But adhesive tape all can touch the electrolytic solution of lithium ion battery in series of cells process of assembling and later stage application process, therefore the adhesive tape that is applied to lithium ion battery need to tolerate the long period of soaking of electrolytic solution, after electrolytic solution long period of soaking, do not have leachable, can electrolyte system not formed and be polluted, can keep enough adhesive properties, prevent the seepage of electrolytic solution simultaneously.And existing adhesive tape all has degradation in various degree after soaking in the electrolytic solution of battery.Capital more or less occurs that adhesive tape itself is corroded by electrolytic solution; Sizing agent comes off from film material, thus the viscosity of losing; Or some composition in sizing agent is discharged in electrolytic solution, thereby pollute electrolytic solution, reduced the quality of battery, the problems such as safety and use mission, make its application at lithium ion battery limited.
Existing adhesive tape generally comprises the pressure-sensitive adhesive agent of base material and substrate surface, and wherein, base material is generally polyethylene film, polypropylene film, polyester film or Kapton etc.Be generally uncoiling and application time easy to use, have release layer in another surface-coated of base material, the material of described release layer is generally the non-silicon parting agent of polysiloxane parting agent or polyacrylic ester and polyethylene wax modification.Pressure-sensitive adhesive agent comprises the glutinous agent of silicone based pressure-sensitive adhesive agent, the agent of rubber series pressure-sensitive adhesive and pressure-sensitive acrylate etc.
The glutinous agent of pressure-sensitive acrylate is with its excellent processing characteristics, and excellent Long-Term Properties and ageing resistance are widely used.But the acrylate copolymer in the glutinous agent of the pressure-sensitive acrylate that existing acrylate pressure-sensitive adhesive band applies at substrate surface is generally several (more than two kinds) arbitrarily simple acrylate monomer and obtains after mixing post polymerization, still exist after electrolytic solution soaks, viscosity is inadequate, the position of wrapping has warping in various degree, cause solution leakage, have certain potential safety hazard.
Summary of the invention
The present invention is in order to solve the not technical problem of electrolyte resistance of existing acrylate pressure-sensitive adhesive band, provide a kind of making simple, easy to use, with low cost, there is enough viscosity and weather resistance, can stand acrylate pressure-sensitive adhesive band of the immersion of long electrolytic solution and preparation method thereof and the lithium ion battery that uses this acrylate pressure-sensitive adhesive band.
First object of the present invention is to provide a kind of acrylate pressure-sensitive adhesive band, this acrylate pressure-sensitive adhesive band comprises the pressure-sensitive adhesive agent of base material and substrate surface, described pressure-sensitive adhesive agent comprises acrylate copolymer and crosslinking and curing agent, described acrylate copolymer is obtained by acrylate monomer polymerization, and described acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer.
Second object of the present invention is to provide the preparation method of aforesaid propylene acid esters Pressuresensitive Tape, S1, the preparation of acrylate copolymer: acrylate monomer is by initiator polymerization; S2, the acrylate copolymer that step S1 is made and crosslinking and curing agent are mixed in organic solvent, after be coated in substrate surface; Described acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer.
The 3rd object of the present invention is to provide a kind of lithium ion battery, comprise housing and be positioned at battery core and the electrolytic solution of housing, the lug that described battery core comprises pole piece and is electrically connected with pole piece, described pole piece is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, and/or lug is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, described acrylate pressure-sensitive adhesive band is aforesaid propylene acid esters Pressuresensitive Tape.
Compared with prior art, acrylate pressure-sensitive adhesive band prepared by the acrylate copolymer that the present invention obtains by the polymerization mix of specific acrylate monomer has enough viscosity and weather resistance, can stand the immersion of long electrolytic solution, after soaking, adhesive tape itself can not corroded by electrolytic solution; Sizing agent can not come off from film material, and keeps good viscosity; Also do not have substance release in electrolytic solution, can not cause electrolyte contamination, thereby improve the quality of battery, safety and use mission, meet the application requiring in lithium ion battery completely.And its making is simple, easy to use, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the acrylate pressure-sensitive adhesive band prepared of embodiments of the invention 1.
Embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of acrylate pressure-sensitive adhesive band, comprise the pressure-sensitive adhesive agent of base material and substrate surface, described pressure-sensitive adhesive agent comprises acrylate copolymer and crosslinking and curing agent, described acrylate copolymer is obtained by acrylate monomer polymerization, and described acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer, and its making is simple, easy to use, with low cost, has enough viscosity and weather resistance, can stand the immersion of long electrolytic solution.
Wherein, the acrylate monomer of lower glass transition temperatures generally refers to the acrylate monomer that glass transition temperature Tg is less than-10 ℃; The acrylate monomer of high glass-transition temperature generally refers to the acrylate monomer that glass transition temperature Tg is greater than-10 ℃; Acrylate-functional monomer generally refers to the acrylate monomer with the functional group that can further can react with solidifying agent, for example, contain the acrylate monomer of hydroxyl, carboxyl or epoxy group.
Wherein, base material the present invention be not particularly limited, the various base materials that can be known to the skilled person, the present invention is preferably film substrate, and the material of base material can comprise one or more in polyethylene (PE), polypropylene (PP), polyester (PET) and polyimide.The thickness of general base material does not also limit, and can select according to practical application, and the thickness of preferred substrates of the present invention is 3um ~ 150um, further preferred 8um ~ 75um, and not only performance is more excellent, is more better than for lithium ion battery.
Preferably, the first acrylate monomer is selected from one or more in (methyl) vinylformic acid laurate, Isooctyl acrylate monomer or butyl acrylate, further preferably the first acrylate monomer comprises (methyl) vinylformic acid laurate, must contain (methyl) vinylformic acid laurate, it is more excellent that (methyl) vinylformic acid laurate is applied to Pressuresensitive Tape performance.Further preferably the first acrylate monomer contains at least two kinds of acrylate monomers, preferentially contains the mixing of (methyl) vinylformic acid laurate and other such as Isooctyl acrylate monomer or butyl acrylates etc.
Preferentially, the second acrylate monomer is selected from one or more in (methyl) methyl acrylate, ethyl propenoate, vinylformic acid or vinyl acetate.
Preferentially, triacrylate monomer is selected from one or more in (methyl) vinylformic acid, Hydroxyethyl acrylate, hydroxyethyl methylacrylate, (methyl) Propylene glycol monoacrylate, β-propyloic acrylic ester or (methyl) glycidyl acrylate.
The more excellent embodiment of one of the present invention, for example in specific embodiment, acrylate monomer comprises (methyl) vinylformic acid laurate, Isooctyl acrylate monomer, vinylformic acid and Hydroxyethyl acrylate, the Pressuresensitive Tape of preparation shows the electrolytic solution ability of excellent resistance to lithium ion battery, periphery little or nothing warps after being soaked by electrolytic solution, is less than 5% bond area.
Preferentially, with respect to the acrylate monomer of 100 weight parts, described acrylate monomer comprises the first acrylate monomer of 40 ~ 90 weight parts, the second acrylate monomer of 1 ~ 40 weight part, the triacrylate monomer of 1 ~ 15 weight part.
Preferentially, crosslinking and curing agent is selected from one or more in polyisocyanate compound, solidifying agent, chelate of metal ion and aziridines solidifying agent with epoxy-functional.Further preferential crosslinking and curing agent is polyisocyanate compound.By the combination of crosslinking and curing agent of the present invention and acrylate copolymer of the present invention, mutual synergy therebetween, makes the Pressuresensitive Tape performance that makes more excellent.
When base material is that film substrate or base material two surfaces are while all containing sizing agent, for ease of transportation, use etc., at least one surface of adhesive tape can be provided with release layer, preferred embodiments of the present invention can comprise the pressure-sensitive adhesive agent of base material, base material one side surface and the release layer on base material opposite side surface, uncoiling time easy to use by release layer and application for acrylate pressure-sensitive adhesive band.
Release layer the present invention be not particularly limited, the various release layers that can be known to the skilled person, and for example, release layer material can be silicone release agent, comprises the silicone release agent being formed by polysiloxane polymer and composition thereof; Also can be the non-silicon parting agent of acrylate copolymer; Can also be by the non-silicon parting agent after polyvinyl alcohol modification.Preferably by the non-silicon parting agent after polyvinyl alcohol modification.Preferably, the thickness of release layer is 0.01um ~ 5um, more preferably 0.08um ~ 1um.
Pressure-sensitive adhesive agent of the present invention can need to be selected other batchings according to the relevant of product, for example, can in above-mentioned batching, add the additives such as tackifying resin, and the various tackifying resins that tackifying resin can be known to the skilled person, can be commercial.Preferably tackifying resin is one or more in terpine resin, polymerization terpine resin, Gum Rosin, esterified rosin resin and C5 ~ C9 petroleum resin, and further preferred, tackifying resin is esterified rosin resin.
In pressure-sensitive adhesive agent of the present invention, the consumption of each component is preferred, with respect to the pressure-sensitive adhesive agent of 100 weight parts, described pressure-sensitive adhesive agent comprises acrylate copolymer, the tackifying resin of 3 ~ 50 weight parts and the crosslinking and curing agent of 0.01 ~ 5 weight part of 50 ~ 85 weight parts, further preferably, with respect to the pressure-sensitive adhesive agent of 100 weight parts, described pressure-sensitive adhesive agent comprises acrylate copolymer, the tackifying resin of 10 ~ 40 weight parts and the crosslinking and curing agent of 0.08 ~ 1 weight part of 50 ~ 85 weight parts.
The present invention provides a kind of preparation method of acrylate pressure-sensitive adhesive band simultaneously, and step comprises: S1, the preparation of acrylate copolymer: acrylate monomer is by initiator polymerization.Wherein, acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer.
Wherein, acrylate monomer is by initiator polymerization, and wherein, preferably initiator is selected from azo-initiator, for example Diisopropyl azodicarboxylate (AIBN), azo-bis-iso-dimethyl etc.; Peroxide initiator, such as benzoyl peroxide (BPO) etc., in one or more.Preferably, with respect to the acrylate monomer of 100 weight parts, the amount of initiator is 0.01 ~ 1.0 weight part.
Generally, polyreaction is carried out in solvent, and solvent can be selected from one or several in toluene, ethyl acetate, butanols, Virahol or acetone.Generally, the amount of solvent can be adjusted as required, and the present invention is preferred, and with respect to the acrylate monomer of 100 weight parts, the amount of solvent is 60 ~ 300 weight parts.
S2, the acrylate copolymer that step S1 is made and crosslinking and curing agent are mixed in organic solvent, after be coated in substrate surface.Wherein, mixing of materials is that the conventional blending means of the raw material of above-mentioned formula is mixed.Apply the present invention and also do not limit, the one side that can be coated in base material can be also two sides.According to the character of base material, for convenience of uncoiling and application, can first on a surface of base material, be coated with parting agent and prepare release layer.
Step is specifically as follows:
(1) preparation of acrylate copolymer:
The acrylate monomer mixing 100 weight parts are added in reactor and stirred, add again solvent 60 ~ 300 weight parts, and pass into the oxygen in nitrogen discharge reactor and material, and keep certain pressure, stir, and stir while heat up, the temperature of charge in reactor is raised to 60 ℃, keep, add initiator, then be warmed up to 65 ℃ ~ 85 ℃ and start reaction, keep the temperature-stable of reactor, keep reaction 8 ~ 24 hours.After to be cooled to 40 ℃ of dischargings for subsequent use, its solid content is 30% ~ 66%, viscosity is at 1000 ~ 50000cps.
(2) preparation of release layer
Select base material, base material is film substrate, and material is selected from one or more in polyethylene (PE), polypropylene (PP), polyester (PET) and polyimide.The thickness of film substrate is 8um ~ 75um.
In intaglio plate coating or the excellent mode being coated with of line for selected substrate surface, the solution that contains parting agent is directly coated on to the surface of film substrate, gauge control is at 0.08um ~ 1um.
Wherein, parting agent can be the silicone release agent being formed by polysiloxane polymer and composition thereof; Also can be the non-silicon parting agent of acrylate copolymer; Can also be by the non-silicon parting agent after polyvinyl alcohol modification.The present invention is preferably by the non-silicon parting agent after polyvinyl alcohol modification.
The solution that contains parting agent is for to be dissolved in parting agent etc. in solvent, and solvent can be selected from toluene, ethyl acetate, acetone, butanone or Virahol etc. one or several.In solution, also can contain other materials, the present invention does not limit, for example, can contain some additives etc.
(3) coating of pressure-sensitive adhesive
By acrylate copolymer 100 weight parts synthetic in above-mentioned steps (1), add while stirring a certain amount of tackifying resin and organic solvent, wherein; tackifying resin is terpine resin, polymerization terpine resin, Gum Rosin; esterified rosin resin, C5 ~ C9 petroleum resin, are preferably esterified rosin resin; Solvent is toluene, ethyl acetate, and butanols, Virahol, acetone, can be the composition of one or several above-mentioned substances.After being uniformly mixed, add crosslinking and curing agent to obtain pressure sensitive adhesive solution, crosslinking and curing agent can be one or more in polyisocyanate compound, amine curing agent, solidifying agent, chelate of metal ion or aziridines solidifying agent with epoxy-functional, is preferably the solidifying agent of polyisocyanates.
Pressure sensitive adhesive solution obtained above is directly coated on to another surface of film substrate, in the baking oven of heating, dries, oven temperature is set in 60 ℃ ~ 150 ℃, bondline thickness is at 1um ~ 60um, preferred thickness, at 5um ~ 50um, then will coat the direct rolling of film substrate, make adhesive tape finished product.
The present invention provides a kind of lithium ion battery simultaneously, battery core and electrolytic solution that it comprises housing and is positioned at housing, the lug that described battery core comprises pole piece and is electrically connected with pole piece, described pole piece is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, and/or lug is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, described acrylate pressure-sensitive adhesive band is aforesaid propylene acid esters Pressuresensitive Tape.With respect to lithium ion battery, improvements of the present invention are acrylate pressure-sensitive adhesive band, and the present invention of other structures does not have special requirement, does not repeat at this.
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
(1): the preparation of acrylate copolymer:
By (methyl) vinylformic acid laurate of 9.0 weight parts, the Isooctyl acrylate monomer of 29.2 weight parts, the Hydroxyethyl acrylate of the vinylformic acid of 1.4 weight parts and 0.4 weight part adds in reactor and stirs, add again in the mixed solvent being formed by the toluene of 45 weight part ethyl acetate and 15 weight parts, and pass into nitrogen and discharge the oxygen in reactor and material, and keep certain pressure, stir, and stir while heat up, temperature of charge in reactor is raised to 60 ℃, keep, add the azo-bis-isobutyl cyanide initiator of 0.06 weight part, then be warmed up to 65 ℃ ~ 75 ℃ and start reaction, keep the temperature-stable of reactor, keep reaction 8 ~ 15 hours.After to be cooled to 35 ℃ ~ 45 ℃ dischargings for subsequent use, its solid content is at 60%+/-5%, viscosity is at 3000 ~ 15000cps.
(2): the preparation of release layer
It is the mode of the film substrate 2 surfaces intaglio plate coating of the polyimide of 25 microns at thickness, the solution of the crystalline polymer parting agent that contains polyvinyl alcohol modification is directly coated on to the surface of film substrate 2, gauge control, at 0.3um ~ 0.6um, is then toasted and on a surface at film substrate 2, is covered release layer 3 in 2 ~ 3 minutes in 80 ~ 120 ℃
(3): the coating of pressure-sensitive adhesive
By acrylate copolymer 70.0 weight parts synthetic in above-mentioned steps (1), add while stirring the esterified rosin resin of 2.3 weight parts and the organic solvent being mixed by toluene and ethyl acetate of 23.4 weight parts, after being uniformly mixed, add the crosslinking and curing agent of the isocyanates of 0.8 weight part, obtain pressure sensitive adhesive solution.
Pressure sensitive adhesive solution obtained above is directly coated on to another surface of film substrate 2, in the baking oven of heating, dry, oven temperature is set in 80 ~ 120 ℃, pressure-sensitive adhesive thickness is at 30um ~ 35um, on another surface of film substrate 2, cover pressure sensitive adhesive adhensive layer 1, then will coat the direct rolling of film substrate, make adhesive tape sample S1.
Comparative example 1
Employing Nitto Denko's is a with the same product of structure in we embodiment 1, as comparative example DS1 of the present invention.
Performance test
Adhesive tape sample S1 and DS1 are cut out to the test sample of the specification of 3 25mmX50mm, test sample is sticked on to the surface of the aluminum foil material of 75um, post the rubber roll of 2.0 kilograms of rear use, roll extrusion 2 times back and forth, then as for having in the container of electrolytic solution, then container is positioned in the baking oven of 90 ℃, places 48 hours.From baking oven, take out and be cooled to room temperature, observe whether variable color of electrolytic solution; Whether adhesive tape comes off from film material; Between glue-line and aluminum foil material, whether have and heave or run through by electrolytic solution.
Observe whether variable color result of electrolytic solution as follows: adhesive tape sample S1 is after electrolytic solution soaks, and electrolytic solution itself and adhesive tape maintain original color, does not change; Adhesive tape sample DS1 after electrolytic solution soaks, the slightly variable color of electrolytic solution intrinsic colour, adhesive tape maintains original color, shows that adhesive tape prepared by the present invention, after electrolytic solution soaks, does not all have material to disengage, and can not affect the performance of electrolytic solution.
Observe adhesive tape whether as follows from the film material result that comes off: adhesive tape sample S1 and DS1 all do not come off from aluminum foil material, show that adhesive tape also sticks to aluminium foil surface.
Observe whether to have between glue-line and aluminum foil material and heave or to be run through result by electrolytic solution as follows: after sample S1 periphery little or nothing is soaked by electrolytic solution, warp, be less than 5% bond area; Sample DS1 edge section warps after approximately having 20% bond area to be soaked by electrolytic solution.Show, adhesive tape of the present invention has the ability of excellent resistance to lithium-ion battery electrolytes.
As can be seen from above, the adhesive tape that prepared by the present invention is more suitable for the lug in the assembling production process of lithium ion battery lithium ion battery and stops position and is fixed, insulate and protect.The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an acrylate pressure-sensitive adhesive band, it is characterized in that, comprise the pressure-sensitive adhesive agent of base material and substrate surface, described pressure-sensitive adhesive agent comprises acrylate copolymer and crosslinking and curing agent, described acrylate copolymer is obtained by acrylate monomer polymerization, and described acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer.
2. acrylate pressure-sensitive adhesive band according to claim 1, is characterized in that, described the first acrylate monomer is selected from one or more in (methyl) vinylformic acid laurate, Isooctyl acrylate monomer or butyl acrylate;
Described the second acrylate monomer is selected from one or more in (methyl) methyl acrylate, ethyl propenoate, vinylformic acid or vinyl acetate;
Described triacrylate monomer is selected from one or more in (methyl) vinylformic acid, Hydroxyethyl acrylate, hydroxyethyl methylacrylate, (methyl) glycidyl acrylate, (methyl) Propylene glycol monoacrylate or β-propyloic acrylic ester.
3. acrylate pressure-sensitive adhesive band according to claim 1, is characterized in that, described the first acrylate monomer comprises (methyl) vinylformic acid laurate.
4. acrylate pressure-sensitive adhesive band according to claim 1, is characterized in that, described acrylate monomer comprises (methyl) vinylformic acid laurate, Isooctyl acrylate monomer, vinylformic acid and Hydroxyethyl acrylate.
5. acrylate pressure-sensitive adhesive band according to claim 1, it is characterized in that, with respect to the acrylate monomer of 100 weight parts, described acrylate monomer comprises the first acrylate monomer of 40 ~ 90 weight parts, the second acrylate monomer of 1 ~ 40 weight part, the triacrylate monomer of 1 ~ 15 weight part.
6. acrylate pressure-sensitive adhesive band according to claim 1, it is characterized in that, described crosslinking and curing agent is selected from polyisocyanate compound, the solidifying agent with epoxy-functional, the solidifying agent with amido functional group, one or more in chelate of metal ion and aziridines solidifying agent.
7. acrylate pressure-sensitive adhesive band according to claim 1, is characterized in that, described crosslinking and curing agent is polyisocyanate compound.
8. acrylate pressure-sensitive adhesive band according to claim 1, is characterized in that, described acrylate pressure-sensitive adhesive band comprises the pressure-sensitive adhesive agent of base material, base material one side surface and the release layer on base material opposite side surface.
9. a preparation method for acrylate pressure-sensitive adhesive band, is characterized in that, step comprises:
S1, the preparation of acrylate copolymer: acrylate monomer is by initiator polymerization;
S2, the acrylate copolymer that step S1 is made and crosslinking and curing agent are mixed in organic solvent, after be coated in substrate surface;
Described acrylate monomer comprises the first acrylate monomer, the second acrylate monomer and triacrylate monomer; Described the first acrylate monomer comprises the acrylate monomer of lower glass transition temperatures; Described the second acrylate monomer comprises the acrylate monomer of high glass-transition temperature; Described triacrylate monomer comprises acrylate-functional monomer.
10. a lithium ion battery, it is characterized in that, comprise housing and be positioned at battery core and the electrolytic solution of housing, the lug that described battery core comprises pole piece and is electrically connected with pole piece, described pole piece is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, and/or lug is provided with for insulating or fixing acrylate pressure-sensitive adhesive band, described acrylate pressure-sensitive adhesive band is the acrylate pressure-sensitive adhesive band described in claim 1-8 any one.
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| CN201410165149.5A CN103911088B (en) | 2014-04-23 | 2014-04-23 | A kind of acrylate pressure-sensitive adhesive band and preparation method thereof and lithium ion battery |
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| CN201410165149.5A CN103911088B (en) | 2014-04-23 | 2014-04-23 | A kind of acrylate pressure-sensitive adhesive band and preparation method thereof and lithium ion battery |
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Denomination of invention: Acrylic ester pressure-sensitive adhesive tape and preparation method thereof and lithium ion battery Effective date of registration: 20170627 Granted publication date: 20151028 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Meixin Electronic Co., Ltd. Registration number: 2017990000548 |
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Address after: No. 192, DAHAO Er village, Xili Town, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Meixin new materials Co.,Ltd. Address before: No. 192, DAHAO Er village, Xili Town, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Meixin Electronics Co.,Ltd. |
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