CN110982472A - Flame-retardant adhesive for lithium battery pack and preparation method thereof - Google Patents
Flame-retardant adhesive for lithium battery pack and preparation method thereof Download PDFInfo
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- CN110982472A CN110982472A CN201911136355.2A CN201911136355A CN110982472A CN 110982472 A CN110982472 A CN 110982472A CN 201911136355 A CN201911136355 A CN 201911136355A CN 110982472 A CN110982472 A CN 110982472A
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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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/06—Polyurethanes from polyesters
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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
- C09J11/04—Non-macromolecular additives inorganic
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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
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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Abstract
According to the flame-retardant adhesive for lithium battery packs and the preparation method thereof, polyolefin is used as a cross-linking agent, phthalate is used as a plasticizer, polyester polyol and isocyanate are used as monomers to carry out on-site thermal polymerization to synthesize polyurethane, aluminum hydroxide and carbonate are uniformly dispersed in a polyurethane carrier system and are cured under heating to generate the flame-retardant adhesive, the flame-retardant adhesive has good fluidity after the component A and the component B are uniformly mixed, and the effect of fully isolating oxygen can be achieved by ensuring that all gaps and spaces in a module are filled with liquid adhesive; after being cured, the flame-retardant adhesive can generate endothermic reaction when burning in case of fire, thereby reducing the ignition point of the combustion reaction and achieving the purpose of quickly reducing the temperature and further playing a role of flame retardance; after being cured, the flame-retardant adhesive can release flame-retardant gases such as carbon dioxide, nitrogen and the like when burning in fire, thereby achieving the purpose of thorough fire extinguishment and flame retardance; this application is from fully isolated oxygen, reducing ignition point, release fire-retardant gas, can more thoroughly, more fully play fire-retardant effect.
Description
Technical Field
The application relates to the technical field of lithium batteries, in particular to a flame-retardant adhesive for lithium battery packs and a preparation method thereof.
Background
With the popularization of portable electric tools with larger power and the wide application of lithium batteries, a single lithium battery can not meet the requirements, the lithium ion battery is usually installed and fixed into a battery module through an insulating and flame-retardant support material, and the battery module forms a battery pack through different series-parallel connection modes.
Safety is the biggest problem in lithium battery application, and although the performance of a single battery is excellent, the application performance problem is prominent after a battery pack is formed, and the most obvious of the problems are as follows: the lithium ion battery has high specific energy density, the activity of the internal material of the battery is high, the reaction of Li & lt + & gt in the process of embedding and removing the Li & lt + & gt in the positive and negative electrode materials is active, if the lithium ion battery is subjected to external extreme conditions, the lithium ion battery is very easy to cause fire and explosion due to short circuit, and due to the fact that the generated open fire and high temperature and high heat are very easy to ignite other adjacent batteries, the safety accidents such as the fire and the explosion of the whole battery pack are caused.
At present, the battery pack is prevented from burning accidents by pouring the pouring sealant into the gap of the battery pack, the pouring sealant plays a flame-retardant role through isolating oxygen, however, the flame-retardant effect of the existing pouring sealant is not thorough and insufficient due to poor sealing performance and no complete isolating oxygen, so that the flame-retardant effect of the existing pouring sealant is low.
Disclosure of Invention
The application provides a flame-retardant adhesive for a lithium battery pack and a preparation method thereof, which aim to solve the technical problem of low flame-retardant effect of the conventional pouring sealant.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
in a first aspect, the application provides a lithium battery pack flame-retardant adhesive, which is formed by mixing and curing a component A and a component B, wherein:
the component A comprises the following components in percentage by mass: 5-15 parts of a polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate;
the component B comprises the following components in percentage by mass: 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant.
Optionally, the component a comprises, by mass: 5 parts of polyolefin compound, 20 parts of polyester polyol, 60 parts of phthalate, 60 parts of aluminum hydroxide, 20 parts of carbonate and 20 parts of borate;
the component B comprises the following components in percentage by mass: 25 parts of isocyanate, 70 parts of phthalate and 5 parts of reaction agent.
Optionally, the mass ratio of the component A to the component B is 5:1-10: 1.
Optionally, the polyester polyol is a phosphorus flame-retardant polyester polyol; the isocyanate is phosphorus-based isocyanate.
Optionally, the polyester polyol is one or more of polyethylene adipate, polypropylene adipate, polyethylene terephthalate and polypropylene terephthalate.
Optionally, the reactant includes a catalyst and a chain extender, and the chain extender is a hydroxyl-terminated chain extender or an amino-terminated chain extender, where:
the catalyst is a platinum catalyst;
the hydroxyl-terminated chain extender is one or more of ethylene glycol, propylene glycol and butanediol;
the amino-terminated chain extender is one or more of ethylenediamine, propylenediamine and butylenediamine.
Optionally, the isocyanate includes any one or more of diphenylmethane diisocyanate, polyphenyl methane polyisocyanate, and xylylene dicyanate.
In a second aspect, the present application also provides a preparation method of the flame retardant adhesive for lithium battery pack, including:
controlling the temperature of 5-15 parts of polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate at 60-70 ℃, continuously stirring for 2-4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A;
controlling the temperature of 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant to be 20-25 ℃, continuously stirring for 1-2 hours at the stirring speed of 30 revolutions per minute, and mixing to obtain a component B;
and (2) mixing the component A and the component B according to the proportion of 5:1-10: and 1, controlling the temperature to be 60-70 ℃, continuously stirring for 2-4 hours under high-speed shearing at a stirring speed of 20 revolutions per minute, and mixing to obtain the flame-retardant adhesive for lithium battery packs.
Compared with the prior art, the beneficial effect of this application is:
according to the technical scheme, the flame retardant adhesive for lithium battery packs and the preparation method thereof provided by the application have the advantages that the polyolefin compound is used as the cross-linking agent, the phthalic acid ester is used as the plasticizer, the reactant is added, the polyester polyol and the isocyanate are used as monomers to carry out on-site thermal polymerization, polyurethane is formed through copolymerization, the polyurethane is used as a carrier, the aluminum hydroxide and the carbonate are uniformly dispersed in a polyurethane carrier system, and the flame retardant adhesive for lithium battery packs is formed through curing under heating, so that:
(1) the component A and the component B are both liquid systems and have certain fluidity, so that the A, B components are conveniently and fully stirred, the uniform mixing is ensured, the flame-retardant adhesive has better fluidity after uniform mixing, the filling and sealing are convenient, the gap infiltration is realized, all gaps and spaces in the module can be ensured to be filled with the liquid adhesive, the wrapping purpose is achieved, the effect of fully isolating oxygen can be realized, and the combustion risk is reduced;
(2) after being cured, the flame-retardant adhesive provided by the application can generate endothermic reaction when burning in case of fire, generate steam, and reduce the temperature in the battery pack, so that the ignition point of the combustion reaction is reduced, and the purposes of quickly cooling and further retarding the flame are achieved;
(3) the application provides a fire-retardant glue can release flame retardant gases such as carbon dioxide, nitrogen gas when meeting fire burning after the solidification, realizes the thorough fire-retardant purpose of putting out a fire.
This application is from abundant isolated oxygen, reducing ignition, release flame retardant gas, and layer upon layer progressive formula realizes flame retardant efficiency, and triple assurance can more thoroughly, play fire-retardant effect more fully, improves the security performance of lithium cell package.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a preparation method of a flame retardant adhesive for lithium battery packs provided by the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Safety is the biggest problem in lithium battery application, and although the performance of a single battery is excellent, the application performance problem is prominent after a battery pack is formed, and the most obvious of the problems are as follows: the lithium ion battery has high specific energy density, the activity of the internal material of the battery is high, the reaction of Li & lt + & gt in the process of embedding and removing the Li & lt + & gt in the positive and negative electrode materials is active, if the lithium ion battery is subjected to external extreme conditions, the lithium ion battery is very easy to cause fire and explosion due to short circuit, and due to the fact that the generated open fire and high temperature and high heat are very easy to ignite other adjacent batteries, the safety accidents such as the fire and the explosion of the whole battery pack are caused.
The application provides a pair of lithium cell package is with fire-retardant glue, fire-retardant glue is formed by solidification after A component and B component mix, wherein:
the component A comprises the following components in percentage by mass: 5-15 parts of a polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate;
the component B comprises the following components in percentage by mass: 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant.
Specifically, the component A comprises the following components in percentage by mass: 5 parts of polyolefin compound, 20 parts of polyester polyol, 60 parts of phthalate, 60 parts of aluminum hydroxide, 20 parts of carbonate and 20 parts of borate;
the component B comprises the following components in percentage by mass: 25 parts of isocyanate, 70 parts of phthalate and 5 parts of reaction agent.
Specifically, the mass ratio of the component A to the component B is 5:1-10: 1.
Specifically, the polyester polyol is phosphorus flame-retardant polyester polyol; the isocyanate is phosphorus-based isocyanate.
The polyester polyol is one or more of polyethylene adipate, polypropylene adipate, polyethylene terephthalate and polypropylene terephthalate.
Specifically, the reactant comprises a catalyst and a chain extender, and the chain extender is a hydroxyl-terminated chain extender or an amino-terminated chain extender, wherein:
the catalyst is a platinum catalyst;
the hydroxyl-terminated chain extender is one or more of ethylene glycol, propylene glycol and butanediol;
the amino-terminated chain extender is one or more of ethylenediamine, propylenediamine and butylenediamine.
Specifically, the isocyanate comprises any one or more of diphenylmethane diisocyanate, polyphenyl methane polyisocyanate and xylylene dicyanate.
Traditional casting glue's viscosity is higher, is difficult to evenly embedment every gap department in the battery package, and the phthalate of adding in this application is the plasticizer, can adjust the viscosity of system to a certain extent, reaches suitable viscosity, guarantees that the fire-retardant glue that this application provided can evenly soak every gap department in the battery package, and then fully isolated oxygen.
According to the technical scheme, the flame retardant adhesive for lithium battery packs and the preparation method thereof provided by the application have the advantages that the polyolefin compound is used as the cross-linking agent, the phthalic acid ester is used as the plasticizer, the reactant is added, the polyester polyol and the isocyanate are used as monomers to carry out on-site thermal polymerization, polyurethane is formed through copolymerization, the polyurethane is used as a carrier, the aluminum hydroxide and the carbonate are uniformly dispersed in a polyurethane carrier system, and the flame retardant adhesive for lithium battery packs is formed through curing under heating, so that:
(1) the component A and the component B are both liquid systems and have certain fluidity, so that the A, B components are stirred sufficiently and uniformly mixed, the flame-retardant adhesive has better fluidity and viscosity after uniform mixing, filling and sealing are facilitated, gap infiltration are facilitated, all gaps and spaces in a module can be filled with the liquid adhesive, the wrapping purpose is achieved, the effect of sufficiently isolating oxygen can be achieved, and the combustion risk is reduced;
(2) the application provides a meeting endothermic reaction can take place when burning of fire-retardant glue solidification back, produces the aqueous vapor, reduces the inside temperature of battery package to reduce combustion reaction's ignition, reach rapid cooling and further play fire-retardant purpose, the system that specifically takes place the reaction is the endothermic reaction of aluminium hydroxide.
(3) After being cured, the flame-retardant adhesive can release flame-retardant gases such as carbon dioxide and nitrogen when burnt in fire, so that the aim of thorough fire extinguishment and flame retardance is fulfilled; specifically, the carbonate may release carbon dioxide after the reaction and nitrogen after the isocyanate reaction.
This application is from abundant isolated oxygen, reducing ignition, release flame retardant gas, and layer upon layer progressive formula realizes flame retardant efficiency, and triple assurance can more thoroughly, play fire-retardant effect more fully, improves the security performance of lithium cell package.
Referring to the attached drawing 1, fig. 1 shows a schematic flow chart of a preparation method of a flame retardant adhesive for lithium battery pack provided by an embodiment of the application. The following describes a preparation method of the flame retardant adhesive for lithium battery packs provided in the embodiments of the present application with reference to fig. 1.
As shown in fig. 1, the present application provides a method for preparing a flame retardant adhesive for lithium battery packs, the method including:
s110: controlling the temperature of 5-15 parts of polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate at 60-70 ℃, continuously stirring for 2-4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A;
s120: controlling the temperature of 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant to be 20-25 ℃, continuously stirring for 1-2 hours at the stirring speed of 30 revolutions per minute, and mixing to obtain a component B;
s130: and (2) mixing the component A and the component B according to the proportion of 5:1-10: and 1, controlling the temperature to be 60-70 ℃, continuously stirring for 2-4 hours under high-speed shearing at a stirring speed of 20 revolutions per minute, and mixing to obtain the flame-retardant adhesive for lithium battery packs.
Example 1: the component A comprises 5 parts of polyolefin compound, 1 part of polyester polyol, 10 parts of phthalate, 50 parts of aluminum hydroxide, 1 part of carbonate and 5 parts of borate.
The synthesis process comprises the following steps: controlling the temperature to be 60 ℃, continuously stirring for 2 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A of the battery flame-retardant adhesive;
the component B comprises the following components in percentage by mass: 5 parts of isocyanate, 10 parts of phthalate and 1 part of reactant.
The synthesis process comprises the following steps: controlling the temperature of each material of the component B at 20 ℃, continuously stirring for 1 hour at the stirring speed of 30 revolutions per minute, and mixing to obtain a component B of the battery flame-retardant adhesive;
mixing method before perfusion, wherein A, B components are mixed according to the proportion of 5:1, controlling the temperature at 60 ℃, continuously stirring for 2 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a finished product of glue;
the glue injection work of the battery module is required to be completed within 1-2 hours after the mixing; curing conditions of the module after glue injection: controlling the temperature to be 60-70 ℃, continuously baking for 2-4 hours, taking out, and finishing curing. And injecting flame-retardant glue into the battery module and curing the flame-retardant glue. And obtaining the flame-retardant battery module.
Example 2: the component A comprises 15 parts of polyolefin compound, 50 parts of polyester polyol, 90 parts of phthalate, 70 parts of aluminum hydroxide, 50 parts of carbonate and 30 parts of borate.
The synthesis process comprises the following steps: controlling the temperature to be 70 ℃, continuously stirring for 4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A of the battery flame-retardant adhesive;
the component B comprises the following components in percentage by mass: 50 parts of isocyanate, 90 parts of phthalate and 5 parts of reactant.
The synthesis process comprises the following steps: controlling the temperature of each material of the component B at 20-25 ℃, continuously stirring for 1-2 hours at a stirring speed of 30 revolutions per minute, and mixing to obtain a component B of the battery flame-retardant adhesive;
mixing method before perfusion, wherein A, B components are mixed according to the proportion of 10: and 1, controlling the temperature to be 70 ℃, continuously stirring for 4 hours at the stirring speed of 20 revolutions per minute, and mixing to obtain the finished product glue.
The glue injection work of the battery module is required to be completed within 1-2 hours after the mixing; curing conditions of the module after glue injection: controlling the temperature to be 60-70 ℃, continuously baking for 2-4 hours, taking out, and finishing curing. And injecting flame-retardant glue into the battery module and curing the flame-retardant glue. And obtaining the flame-retardant battery module.
Example 3: example 1: the component A comprises 10 parts of polyolefin compound, 20 parts of polyester polyol, 50 parts of phthalate, 60 parts of aluminum hydroxide, 25 parts of carbonate and 20 parts of borate.
The synthesis process comprises the following steps: controlling the temperature to be 60-70 ℃, continuously stirring for 2-4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A of the battery flame-retardant adhesive;
the component B comprises the following components in percentage by mass: 20 parts of isocyanate, 40 parts of phthalate and 3 parts of reactant.
The synthesis process comprises the following steps: controlling the temperature of each material of the component B at 20-25 ℃, continuously stirring for 1-2 hours at a stirring speed of 30 revolutions per minute, and mixing to obtain a component B of the battery flame-retardant adhesive;
mixing method before perfusion, wherein A, B components are mixed according to the proportion of 5:1-10: and 1, controlling the temperature to be 60-70 ℃, continuously stirring for 2-4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain the finished product glue.
The glue injection work of the battery module is required to be completed within 1-2 hours after the mixing; curing conditions of the module after glue injection: controlling the temperature to be 60-70 ℃, continuously baking for 2-4 hours, taking out, and finishing curing. And injecting flame-retardant glue into the battery module and curing the flame-retardant glue. And obtaining the flame-retardant battery module.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (8)
1. The flame-retardant adhesive for lithium battery packs is characterized by being formed by mixing and curing a component A and a component B, wherein:
the component A comprises the following components in percentage by mass: 5-15 parts of a polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate;
the component B comprises the following components in percentage by mass: 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant.
2. The flame-retardant adhesive for lithium battery packs as claimed in claim 1, wherein the component A comprises the following components in percentage by mass: 5 parts of polyolefin compound, 20 parts of polyester polyol, 60 parts of phthalate, 60 parts of aluminum hydroxide, 20 parts of carbonate and 20 parts of borate;
the component B comprises the following components in percentage by mass: 25 parts of isocyanate, 70 parts of phthalate and 5 parts of reaction agent.
3. The flame retardant adhesive for lithium battery packs as claimed in claim 1, wherein the mass ratio of the component A to the component B is 5:1-10: 1.
4. The flame retardant adhesive for lithium battery packs according to claim 1, wherein the polyester polyol is a phosphorus flame retardant polyester polyol;
the isocyanate is phosphorus-based isocyanate.
5. The flame retardant adhesive for lithium battery packs as claimed in claim 1, wherein the polyester polyol is one or more of polyethylene adipate, polypropylene adipate, polyethylene terephthalate and polypropylene terephthalate.
6. The flame retardant adhesive for lithium battery packs according to claim 1, wherein the reactant comprises a catalyst and a chain extender, and the chain extender is a hydroxyl-terminated chain extender or an amino-terminated chain extender, wherein:
the catalyst is a platinum catalyst;
the hydroxyl-terminated chain extender is one or more of ethylene glycol, propylene glycol and butanediol;
the amino-terminated chain extender is one or more of ethylenediamine, propylenediamine and butylenediamine.
7. The flame retardant adhesive for lithium battery packs as claimed in claim 1, wherein the isocyanate comprises any one or more of diphenylmethane diisocyanate, polyphenylmethane polyisocyanate, and xylylene dicyanate.
8. A preparation method of a flame-retardant adhesive for lithium battery packs is characterized by comprising the following steps:
controlling the temperature of 5-15 parts of polyolefin compound, 1-50 parts of polyester polyol, 10-90 parts of phthalate, 50-70 parts of aluminum hydroxide, 1-50 parts of carbonate and 5-30 parts of borate at 60-70 ℃, continuously stirring for 2-4 hours at a stirring speed of 20 revolutions per minute, and mixing to obtain a component A;
controlling the temperature of 5-50 parts of isocyanate, 10-90 parts of phthalate and 1-5 parts of reactant to be 20-25 ℃, continuously stirring for 1-2 hours at the stirring speed of 30 revolutions per minute, and mixing to obtain a component B;
and (2) mixing the component A and the component B according to the proportion of 5:1-10: and 1, controlling the temperature to be 60-70 ℃, continuously stirring for 2-4 hours under high-speed shearing at a stirring speed of 20 revolutions per minute, and mixing to obtain the flame-retardant adhesive for lithium battery packs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911136355.2A CN110982472A (en) | 2019-11-19 | 2019-11-19 | Flame-retardant adhesive for lithium battery pack and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911136355.2A CN110982472A (en) | 2019-11-19 | 2019-11-19 | Flame-retardant adhesive for lithium battery pack and preparation method thereof |
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| CN110982472A true CN110982472A (en) | 2020-04-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140141161A1 (en) * | 2011-06-28 | 2014-05-22 | Dow Global Technologies Llc | Sprayable flame resistant polyurethane coating composition |
| CN106367013A (en) * | 2016-11-07 | 2017-02-01 | 东莞市腾威电子材料技术有限公司 | Two-component adhesive for assembling power lithium battery module |
| CN109280526A (en) * | 2018-09-19 | 2019-01-29 | 广州市白云化工实业有限公司 | Two-component power battery structure glue and preparation method thereof |
| CN109880578A (en) * | 2019-02-28 | 2019-06-14 | 上海富铭密封材料有限公司 | A kind of two-component soft thermal polyurethane casting glue and preparation method thereof |
-
2019
- 2019-11-19 CN CN201911136355.2A patent/CN110982472A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140141161A1 (en) * | 2011-06-28 | 2014-05-22 | Dow Global Technologies Llc | Sprayable flame resistant polyurethane coating composition |
| CN106367013A (en) * | 2016-11-07 | 2017-02-01 | 东莞市腾威电子材料技术有限公司 | Two-component adhesive for assembling power lithium battery module |
| CN109280526A (en) * | 2018-09-19 | 2019-01-29 | 广州市白云化工实业有限公司 | Two-component power battery structure glue and preparation method thereof |
| CN109880578A (en) * | 2019-02-28 | 2019-06-14 | 上海富铭密封材料有限公司 | A kind of two-component soft thermal polyurethane casting glue and preparation method thereof |
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