CN106905872A - A kind for the treatment of selvedge technique of soft package lithium battery - Google Patents
A kind for the treatment of selvedge technique of soft package lithium battery Download PDFInfo
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- CN106905872A CN106905872A CN201710137961.0A CN201710137961A CN106905872A CN 106905872 A CN106905872 A CN 106905872A CN 201710137961 A CN201710137961 A CN 201710137961A CN 106905872 A CN106905872 A CN 106905872A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/33—Applications of adhesives in processes or use of adhesives in the form of films or foils for batteries or fuel cells
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Sealing Battery Cases Or Jackets (AREA)
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The present invention relates to soft package lithium battery package technique field, and in particular to a kind for the treatment of selvedge technique of soft package lithium battery, comprise the following steps：（1）Coremaking：Anode sizing agent and cathode size are respectively coated on positive plate and negative plate, and are dried, roll-in, cutting, soldering polar ear, be wound into battery core；（2）Pre- envelope：Core is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：The aluminum plastic film being honored as a queen in advance is cut into unnecessary airbag side, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Wherein, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.The present invention substitutes traditional yellow glue band by using the non-flammable adhesive tape with anti-flammability, the fire resistance of lithium battery is improve, so as to improve the security of soft package lithium battery.
Description
Technical field
The present invention relates to soft package lithium battery package technique field, and in particular to a kind for the treatment of selvedge technique of soft package lithium battery.
Background technology
In the prior art, lithium battery has the advantages that pollution-free, capacity is high, has extended cycle life, and is a kind of important energy
Product, but Samsung note7 battery explosion, also watchful consumer and producer, the security performance of lithium battery can not be ignored.
And the important ring in soft package lithium battery production is the edge sealing for using adhesive tape to fix soft package lithium battery, therefore use
The adhesive tape of anti-flammability can necessarily improve the security performance of lithium battery, effectively take precautions against the natural potential safety hazard of battery.But it is existing
Lithium battery adhesive tape is generally adopted by common yellow glue band, does not have anti-flammability, and adhesive property is also not enough, causes edge sealing
Built on the sand, airbag is easily shaken and produces excessive gas, reduces performance and the life-span of soft package lithium battery.
Furthermore, once there is electrolyte leakage, common yellow glue is basic to lose viscosity once contact electrolyte, causes edge sealing
Unstable and electrolyte leakage speed is faster.
The content of the invention
The purpose of the present invention is directed to above-mentioned deficiency of the prior art, there is provided one kind can improve soft package lithium battery security
The treating selvedge technique of the soft package lithium battery of energy.
The purpose of the present invention is achieved through the following technical solutions：
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
Isooctyl acrylate monomer 46-74 parts
Methyl methacrylate 10-20 parts
2-hydroxyethyl methacry-late 30-35 parts
34-43 parts of lauryl acid esters
Butyl acrylate 5-10 parts
Pentalyn 3-10 parts
Crosslinking agent 1-2 parts
0.1-1 parts of dodecyl alcohol sulphur
Initiator 0.1-1 parts
Fire retardant 1-3 parts
Organic solvent 100-200 parts.
In the application formula, using Isooctyl acrylate monomer, methyl methacrylate, 2-hydroxyethyl methacry-late, third
Olefin(e) acid laurate, butyl acrylate carry out radical polymerization in the presence of initiator and form acrylic copolymer, are aided with friendship
Connection agent and the cohesive force and cohesive force of dodecyl alcohol sulphur regulation acrylic copolymer, so as to be formed with three-way network knot
The copolymer of structure, and can effectively keep out the immersion of electrolyte, while long-acting cohesive force is kept in the electrolytic solution, also base
The dissolution of this free from admixture；And due to the characteristic of the network structure, fire retardant can be dispersed, it is to avoid it occurs agglomeration,
Also will not be separated out by electrolyte, both improve the fire resistance of copolymer, also maintain the adhesive property of copolymer.
Preferably, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
Isooctyl acrylate monomer 57-63 parts
Methyl methacrylate 13-17 parts
2-hydroxyethyl methacry-late 31-34 parts
36-39 parts of lauryl acid esters
Butyl acrylate 7-8 parts
Pentalyn 6-7 parts
Crosslinking agent 1-2 parts
0.2-0.4 parts of dodecyl alcohol sulphur
Initiator 0.1-0.3 parts
Fire retardant 1-1.5 parts
100 parts of organic solvent.
The crosslinking agent of the application can be commercially available conventional crosslinking agent, such as polyisocyanates crosslinking agent, the crosslinking of many amines
Agent, polyalcohols crosslinking agent, aziridines crosslinking agent, acrylic ester cross-linking agent, metallo-organic compound etc., it is preferable that institute
Crosslinking agent is stated by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 1：1-3：1 ratio composition.The choosing of crosslinking agent
There is conclusive effect with the formation for combining the network structure for acrylic copolymer, for the acrylic acid list of the application
Body combined system, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 1：1-3：The crosslinking agent of 1 ratio composition
The cementitiousness of the non-flammable adhesive tape of the application can be more improved than single crosslinking agent and viscous ability is held.
Further, the crosslinking agent and the weight ratio of dodecyl alcohol sulphur are 10：1.The crosslinking agent of the application and
Dodecyl alcohol sulphur complements each other, and plays the cohesive force and viscosity, crosslinking agent and dodecyl of regulation acrylic copolymer
The weight ratio of alcohol sulphur is more than 10：When 1, flame-proof acrylic adhesive-layer hardness is bigger, the processing request accurate for lithium battery is difficult to
Flexible adaptation, weight ratio is less than 10：When 1, viscous ability of holding in the electrolytic solution is decreased obviously, therefore is preferably in a proportion of 10：1.
Wherein, can initiator can directly affect the polymerization process of acrylic monomers and be smoothed out, and can also influence
Polymerization rate, it is preferable that the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 1-3：
The ratio composition of 1-3.
Wherein, the fire retardant is at least one in the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene.This
Apply for and be provided without compound fire retardant, such as phosphorus nitrogen expansion type combustion inhibitor, because the lifting except considering fire resistance, also
Need to consider whether fire retardant can easily separate out in acrylic copolymer to pollute electrolyte, it is also contemplated that what is used is fire-retardant
Whether agent is susceptible to agglomeration and reduces the viscosity of the application non-flammable adhesive tape.The phosphorus of six phenoxy group alkane ring three that the application is used
Nitrile and/or hexaaniline cyclotriphosphazene, in the acrylic acid copolymer objects system of the application, with excellent compatibility, both will not
The viscosity of acrylic copolymer is influenceed, will not also be separated out by electrolyte substantially, it is further preferred that the fire retardant is by six benzene oxygen
The phosphonitrile of base alkane ring three and hexaaniline cyclotriphosphazene are by weight 2：1 ratio composition, it is possible to increase the bonding energy of non-flammable adhesive tape
Power and hold viscous ability.
Wherein, the organic solvent is at least one in toluene, dimethylbenzene and ethyl acetate.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 50wt%-70wt% is mixed and heated to 80-90 DEG C, is fully cooled to 30-40 DEG C after reaction, adds rosin Ji Wusi
Alcohol ester and remaining organic solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated on institute
State in PET base material, that is, obtain the non-flammable adhesive tape.
Beneficial effects of the present invention：1st, the present invention substitutes traditional yellow glue band by using the non-flammable adhesive tape with anti-flammability,
The fire resistance of lithium battery is improve, so as to improve the security of soft package lithium battery；2nd, the present invention matches somebody with somebody by non-flammable adhesive tape
Side is combined improvement, improves the adhesive property of non-flammable adhesive tape and the performance of tolerance electrolytic corrosion.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
60 parts of Isooctyl acrylate monomer
15 parts of methyl methacrylate
32.5 parts of 2-hydroxyethyl methacry-late
38.5 parts of lauryl acid esters
7.5 parts of butyl acrylate
6.5 parts of pentalyn
1.5 parts of crosslinking agent
0.15 part of dodecyl alcohol sulphur
0.5 part of initiator
2 parts of fire retardant
150 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 2 for the crosslinking agent：1 ratio composition.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 1：1 ratio composition.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 2：1 ratio
Example composition.
Wherein, the organic solvent is ethyl acetate.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 60wt% is mixed and heated to 85 DEG C, is fully cooled to 35 DEG C after reaction, adds pentalyn and residue to have
Machine solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material,
Obtain the non-flammable adhesive tape.
Embodiment 2
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
63 parts of Isooctyl acrylate monomer
17 parts of methyl methacrylate
34 parts of 2-hydroxyethyl methacry-late
39 parts of lauryl acid esters
8 parts of butyl acrylate
7 parts of pentalyn
2 parts of crosslinking agent
0.4 part of dodecyl alcohol sulphur
0.3 part of initiator
1.5 parts of fire retardant
100 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 3 for the crosslinking agent：1 ratio composition.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 2：3 ratio composition.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 3：1 ratio
Example composition.
Wherein, the organic solvent is dimethylbenzene.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 70wt% is mixed and heated to 90 DEG C, is fully cooled to 40 DEG C after reaction, adds pentalyn and residue to have
Machine solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material,
Obtain the non-flammable adhesive tape.
Embodiment 3
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
57 parts of Isooctyl acrylate monomer
13 parts of methyl methacrylate
31 parts of 2-hydroxyethyl methacry-late
36 parts of lauryl acid esters
7 parts of butyl acrylate
6 parts of pentalyn
1 part of crosslinking agent
0.2 part of dodecyl alcohol sulphur
0.1 part of initiator
1 part of fire retardant
100 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 1 for the crosslinking agent：1 ratio composition.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 2：1 ratio composition.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 1：1 ratio
Example composition.
Wherein, the organic solvent is toluene.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 50wt% is mixed and heated to 80 DEG C, is fully cooled to 30 DEG C after reaction, adds pentalyn and residue to have
Machine solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material,
Obtain the non-flammable adhesive tape.
Embodiment 4
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
62 parts of Isooctyl acrylate monomer
14 parts of methyl methacrylate
33 parts of 2-hydroxyethyl methacry-late
38 parts of lauryl acid esters
7 parts of butyl acrylate
7 parts of pentalyn
2 parts of crosslinking agent
0.2 part of dodecyl alcohol sulphur
0.15 part of initiator
1.25 parts of fire retardant
100 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 2 for the crosslinking agent：1 ratio group
Into.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 3：1 ratio group
Into.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 2：1 ratio
Example composition.
Wherein, the organic solvent is toluene, dimethylbenzene by weight 1:The mixed solvent of 1 composition.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 65wt% is mixed and heated to 83 DEG C, is fully cooled to 33 DEG C after reaction, adds pentalyn and residue to have
Machine solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material,
Obtain the non-flammable adhesive tape.
Embodiment 5
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
74 parts of Isooctyl acrylate monomer
20 parts of methyl methacrylate
35 parts of 2-hydroxyethyl methacry-late
43 parts of lauryl acid esters
10 parts of butyl acrylate
10 parts of pentalyn
2 parts of crosslinking agent
1 part of dodecyl alcohol sulphur
1 part of initiator
3 parts of fire retardant
200 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 2 for the crosslinking agent：1 ratio group
Into.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile by weight 1：1 ratio group
Into.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 2：1 ratio
Example composition.
Wherein, the organic solvent is ethyl acetate.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 60wt% is mixed and heated to 85 DEG C, is fully cooled to 35 DEG C after reaction, adds pentalyn and residue to have
Machine solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material,
Obtain the non-flammable adhesive tape.
Embodiment 6
A kind for the treatment of selvedge technique of soft package lithium battery, comprises the following steps：（1）Coremaking：Anode sizing agent and cathode size are applied respectively
Cloth is dried, roll-in, cutting, soldering polar ear, is wound into battery core on positive plate and negative plate；（2）Pre- envelope：By core
It is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：By the aluminum plastic film being honored as a queen in advance
Unnecessary airbag side is cut, remaining airbag side is carried out into flanging and battery core of fitting, be finally fixed with non-flammable adhesive tape；Its
In, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
Wherein, the flame-proof acrylic adhesive-layer is made up of the raw material of following parts by weight：
46 parts of Isooctyl acrylate monomer
10 parts of methyl methacrylate
30 parts of 2-hydroxyethyl methacry-late
34 parts of lauryl acid esters
5 parts of butyl acrylate
3 parts of pentalyn
1 part of crosslinking agent
0.1 part of dodecyl alcohol sulphur
0.1 part of initiator
1 part of fire retardant
100 parts of organic solvent.
Wherein, by Toluene-2,4-diisocyanate, 4- diisocyanate and acetic acid acetone aluminium are by weight 1 for the crosslinking agent：1-3：1 ratio
Composition.
Wherein, the initiator is by azo-bis-iso-dimethyl and azodiisobutyronitrile 1-3 by weight：The ratio of 1-3
Example composition.
Wherein, the fire retardant is by the phosphonitrile of six phenoxy group alkane ring three and hexaaniline cyclotriphosphazene by weight 2：1 ratio
Example composition.
Wherein, the organic solvent is at least one in toluene, dimethylbenzene and ethyl acetate.
Wherein, the preparation method of the non-flammable adhesive tape is：It is described by Isooctyl acrylate monomer, methyl methacrylate, methyl
Acrylic acid -2- hydroxyl ethyl esters, lauryl acrylate, butyl acrylate, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and
The organic solvent of 50wt%-70wt% is mixed and heated to 80-90 DEG C, is fully cooled to 30-40 DEG C after reaction, adds rosin Ji Wusi
Alcohol ester and remaining organic solvent, and stir, flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated on institute
State in PET base material, that is, obtain the non-flammable adhesive tape.
Non-flammable adhesive tape to embodiment 1-6 carries out performance test.Test index and corresponding test condition are as follows：
1. conventional adhesion strength.Method of testing is as follows：Test temperature is 23 ± 2 DEG C, and relative humidity is 60-70%, is 20mm by wide cut
Be affixed on adhesive tape on the aluminium sheet of cleaning by non-flammable adhesive tape slight finger pressure, with the pressure roller of 2Kg with the speed of 10m/min come back pressure 3 times,
20min or 24h is placed, non-flammable adhesive tape is peeled off with the peeling rate of 300m/min and 180 ° of peel angle then, remembered
Record peeling force simultaneously calculates average value.
2. electrolyte adhesion strength.Method of testing is as follows：Test temperature is 23 ± 2 DEG C, and relative humidity is 60-70%, by wide cut
For be affixed on adhesive tape on the aluminium sheet of cleaning by 20mm non-flammable adhesive tape slight finger pressures, with the pressure roller of 2Kg with the speed of 10m/min back and forth
Pressure 3 times, places 24h, aluminium sheet is immersed in into 10min in electrolyte, then with the peeling rate of 300m/min and 180 ° of stripping
Angle is peeled off to non-flammable adhesive tape, is recorded peeling force and is calculated average value.
3. conventional confining force.Method of testing is as follows：Test temperature is 23 ± 2 DEG C, and relative humidity is 60-70%, by fire retardant glue
Be affixed on adhesive tape on the aluminium sheet of cleaning by band slight finger pressure, and fitting area is 20mmX20mm, and with the pressure roller of 2Kg with 10m/min
Speed carry out back pressure 3 times, place 20min, the bottom of non-flammable adhesive tape hangs up the counterweight of 1Kg, loading 1h, note by aluminium sheet vertically
Record the distance of fall of counterweight.
4. electrolyte confining force.Method of testing is as follows：Test temperature is 23 ± 2 DEG C, and relative humidity is 60-70%, will be fire-retardant
Be affixed on adhesive tape on the aluminium sheet of cleaning by adhesive tape slight finger pressure, and fitting area is 20mmX20mm, and with the pressure roller of 2Kg with 10m/
The speed of min carrys out back pressure 3 times, places 20min, and aluminium sheet is immersed in into 10min in electrolyte, by aluminium sheet vertically, non-flammable adhesive tape
Bottom hangs up the counterweight of 1Kg, and loading 1h records the distance of fall of counterweight.
5. anti-flammability.Conventional flame retardant level estimate method.
As can be seen from the above table, the non-flammable adhesive tape of the application has excellent cohesive force and confining force, even if by electrolyte
After immersion treatment, hydraulic performance decline is also very limited, and excellent fireproof performance, be used in the technique of the application can make it is soft
The security performance of bag lithium battery is lifted.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. the treating selvedge technique of a kind of soft package lithium battery, it is characterised in that：Comprise the following steps：（1）Coremaking：By anode sizing agent and negative
Pole slurry is respectively coated on positive plate and negative plate, and is dried, roll-in, cutting, soldering polar ear, is wound into battery core；（2）
Pre- envelope：Core is put into aluminum plastic film and is packaged, and reserved airbag, inject electrolyte, pumping, sealing；（3）Treating selvedge：Will be pre-
The aluminum plastic film being honored as a queen cuts unnecessary airbag side, and remaining airbag side is carried out into flanging and battery core of fitting, and finally uses non-flammable adhesive tape
It is fixed；Wherein, the non-flammable adhesive tape is made up of PET base material with the flame-proof acrylic adhesive-layer for being coated on PET base material.
2. the treating selvedge technique of a kind of soft package lithium battery according to claim 1, it is characterised in that：The flame-proof acrylic glues
Glue-line is made up of the raw material of following parts by weight：
Isooctyl acrylate monomer 46-74 parts
Methyl methacrylate 10-20 parts
2-hydroxyethyl methacry-late 30-35 parts
34-43 parts of lauryl acid esters
Butyl acrylate 5-10 parts
Pentalyn 3-10 parts
Crosslinking agent 1-2 parts
0.1-1 parts of dodecyl alcohol sulphur
Initiator 0.1-1 parts
Fire retardant 1-3 parts
Organic solvent 100-200 parts.
3. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The flame-proof acrylic glues
Glue-line is made up of the raw material of following parts by weight：
Isooctyl acrylate monomer 57-63 parts
Methyl methacrylate 13-17 parts
2-hydroxyethyl methacry-late 31-34 parts
36-39 parts of lauryl acid esters
Butyl acrylate 7-8 parts
Pentalyn 6-7 parts
Crosslinking agent 1-2 parts
0.2-0.4 parts of dodecyl alcohol sulphur
Initiator 0.1-0.3 parts
Fire retardant 1-1.5 parts
100 parts of organic solvent.
4. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The crosslinking agent is by first
Benzene -2,4- diisocyanate and acetic acid acetone aluminium are by weight 1：1-3：1 ratio composition.
5. the treating selvedge technique of a kind of soft package lithium battery according to claim 4, it is characterised in that：The crosslinking agent and positive ten
The weight ratio of dialkyl group alcohol sulphur is 10：1.
6. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The initiator is by azo
Two isobutyl dimethyl phthalates and azodiisobutyronitrile are by weight 1-3：The ratio composition of 1-3.
7. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The fire retardant is six benzene
At least one in the phosphonitrile of epoxide alkane ring three and hexaaniline cyclotriphosphazene.
8. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The organic solvent is first
At least one in benzene, dimethylbenzene and ethyl acetate.
9. the treating selvedge technique of a kind of soft package lithium battery according to claim 2, it is characterised in that：The system of the non-flammable adhesive tape
It is for technique：By Isooctyl acrylate monomer, methyl methacrylate, 2-hydroxyethyl methacry-late, lauryl acrylate, propylene
The organic solvent of acid butyl ester, initiator, crosslinking agent, dodecyl alcohol sulphur, fire retardant and 50wt%-70wt% is mixed and heated to
80-90 DEG C, 30-40 DEG C fully is cooled to after reaction, adds pentalyn and remaining organic solvent, and stirred,
Flame-proof acrylic viscose glue is obtained, the flame-proof acrylic viscose glue is coated in the PET base material, that is, obtain the fire retardant glue
Band.
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|---|---|---|---|
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| CN107312470A (en) * | 2017-07-14 | 2017-11-03 | 东莞市古川胶带有限公司 | One-faced tapes with fire resistance and preparation method thereof |
| CN108410381A (en) * | 2018-03-30 | 2018-08-17 | 追诚新能源材料（江苏）有限公司 | A kind of cooling adhesive tape |
| CN108822769A (en) * | 2018-04-26 | 2018-11-16 | 广东永邦新能源股份有限公司 | A kind of flame-resistant insulation acrylic acid viscose glue and preparation method thereof and terminal adhesive tape |
| CN110429346A (en) * | 2019-07-23 | 2019-11-08 | 天津池源科技有限公司 | A kind of lithium battery packaging technology |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| CN111952527A (en) * | 2020-08-13 | 2020-11-17 | 梅州市量能新能源科技有限公司 | Packaging method and packaging equipment for flexible package lithium battery |
| KR20220015547A (en) * | 2020-07-31 | 2022-02-08 | 한화솔루션 주식회사 | Adhesive composition for battery modules and outer cover film for battery modules comprising the same |
| CN116676054A (en) * | 2023-04-11 | 2023-09-01 | 江苏荣骐光电材料科技有限公司 | Preparation method of UV (ultraviolet) curing type lithium battery shell protection adhesive tape |
| CN118085760A (en) * | 2024-04-28 | 2024-05-28 | 泰兴联创绝缘材料有限公司 | Single-body insulating flame-retardant protective film for battery cells of power battery and preparation method thereof |
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| CN107312470A (en) * | 2017-07-14 | 2017-11-03 | 东莞市古川胶带有限公司 | One-faced tapes with fire resistance and preparation method thereof |
| CN108410381A (en) * | 2018-03-30 | 2018-08-17 | 追诚新能源材料（江苏）有限公司 | A kind of cooling adhesive tape |
| CN108822769A (en) * | 2018-04-26 | 2018-11-16 | 广东永邦新能源股份有限公司 | A kind of flame-resistant insulation acrylic acid viscose glue and preparation method thereof and terminal adhesive tape |
| CN108822769B (en) * | 2018-04-26 | 2020-10-13 | 广东永邦新能源股份有限公司 | Insulating flame-retardant acrylic acid adhesive, preparation method thereof and termination adhesive tape |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| CN110429346A (en) * | 2019-07-23 | 2019-11-08 | 天津池源科技有限公司 | A kind of lithium battery packaging technology |
| KR20220015547A (en) * | 2020-07-31 | 2022-02-08 | 한화솔루션 주식회사 | Adhesive composition for battery modules and outer cover film for battery modules comprising the same |
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| CN111952527A (en) * | 2020-08-13 | 2020-11-17 | 梅州市量能新能源科技有限公司 | Packaging method and packaging equipment for flexible package lithium battery |
| CN111952527B (en) * | 2020-08-13 | 2022-12-27 | 梅州市量能新能源科技有限公司 | Packaging method and packaging equipment for flexible package lithium battery |
| CN116676054A (en) * | 2023-04-11 | 2023-09-01 | 江苏荣骐光电材料科技有限公司 | Preparation method of UV (ultraviolet) curing type lithium battery shell protection adhesive tape |
| CN118085760A (en) * | 2024-04-28 | 2024-05-28 | 泰兴联创绝缘材料有限公司 | Single-body insulating flame-retardant protective film for battery cells of power battery and preparation method thereof |
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