CN112976704B - Battery module fireproof insulation product for preventing thermal runaway diffusion - Google Patents

Battery module fireproof insulation product for preventing thermal runaway diffusion Download PDF

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Publication number
CN112976704B
CN112976704B CN202110164978.1A CN202110164978A CN112976704B CN 112976704 B CN112976704 B CN 112976704B CN 202110164978 A CN202110164978 A CN 202110164978A CN 112976704 B CN112976704 B CN 112976704B
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carbon nanotubes
insulation product
reaction
thermal runaway
preventing thermal
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CN112976704A (en
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催应发
崔小虎
邓珊珊
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Huizhou Tonmax New Energy Material Co ltd
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Huizhou Tonmax New Energy Material Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09D161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C09D161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/12—Gel
    • B32B2266/126—Aerogel, i.e. a supercritically dried gel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/206—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • 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

Abstract

The invention discloses a battery module fireproof insulation product for preventing thermal runaway diffusion, which comprises a surface layer substrate, wherein the insulation product takes aerogel materials as a core layer, the core layer and the surface layer substrate are firstly sprayed by adopting an insulating agent, and then are bonded and integrally formed by adopting an adhesive after spraying. The fireproof insulation product is sprayed by adopting the insulating agent between the core layer and the surface layer matrix, the insulating agent is formed by raw materials such as melamine formaldehyde resin, modified carbon nanotubes and the like, the carbon nanotubes have high specific surface area and strong bearing capacity, and have high organic degree after modification, and simultaneously, the carbon nanotubes are used as an intermediate carrier to combine the melamine formaldehyde resin with the modified methyl phenyl silicone resin, so that the crosslinking reaction degree between the raw materials of the insulating agent is improved, the insulation performance of the product is improved, and the adhesive is adopted for bonding and integral forming, so that the integral stability of the product is improved, and the flame retardance and the insulation performance of the product are improved.

Description

Battery module fireproof insulation product for preventing thermal runaway diffusion
Technical Field
The invention relates to the technical field of fireproof insulating products, in particular to a battery module fireproof insulating product for preventing thermal runaway diffusion.
Background
The battery module is an assembly capable of providing electric energy, and is one of secondary structures constituting a battery system. Current battery module includes electric core, heat dissipation aluminum plate, plastic frame, utmost point ear fixed block and busbar, at the in-process of assembly battery module, places electric core earlier in heat dissipation aluminum plate, again with plastic frame and heat dissipation aluminum plate installation together, plastic frame and heat dissipation aluminum plate can fix electric core between plastic frame and heat dissipation aluminum plate this moment.
Current battery module adopts the aerogel product to carry out fire prevention processing, though has fire behavior, but insulating properties is poor, influences the wholeness ability of product easily, based on this, needs further improvement to handle.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a battery module fireproof insulating product for preventing thermal runaway diffusion.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a battery module fireproof insulation product for preventing thermal runaway diffusion, which comprises a surface layer substrate, wherein the insulation product takes aerogel materials as a core layer, the core layer and the surface layer substrate are firstly sprayed with an insulating agent, and then are bonded and integrally formed by an adhesive after spraying;
the preparation method of the insulating agent comprises the following steps: mixing melamine formaldehyde resin and modified carbon nanotubes according to a weight ratio of 4:1, feeding the mixture into a reaction kettle for reaction, then adding aqueous solution of octylphenol polyoxyethylene ether, then adding modified methyl phenyl silicone resin accounting for 2-5% of the total amount of the modified carbon nanotubes, reacting at 65-75 ℃ for 20-30min at a reaction speed of 250r/min plus 210, and obtaining the insulating agent after the reaction is finished.
Preferably, the modification method of the modified carbon nanotube is as follows: corona treatment is carried out on carbon nanotubes, the carbon nanotubes are sent into an acetone solvent, then a silane coupling agent KH560 is added, then 1, 5-naphthalene diisocyanate and triethanolamine are added, the mixture is stirred for 35-45min at the rotating speed of 200-300r/min, and the modified carbon nanotubes are obtained after the stirring.
Preferably, the corona treatment is carried out by adopting a corona instrument, the voltage of the corona treatment is 2-10kV, and the corona time is 1-5 min.
Preferably, the voltage of the corona treatment is 6kV and the corona time is 3 min.
Preferably, the modification method of the modified methylphenyl silicone resin comprises the following steps: and (2) feeding the methyl phenyl silicone resin into a solution of vinyl polydimethylsiloxane, then reacting for 20-30min at the reaction temperature of 90-110 ℃, wherein the reaction speed is 80-120r/min, and obtaining the modified methyl phenyl silicone resin after the reaction is finished.
Preferably, the solution of the vinyl polydimethylsiloxane is formed by mixing the vinyl polydimethylsiloxane and the rare earth lanthanum chloride according to the weight ratio of 5 (7-11).
Preferably, the solution of vinyl polydimethylsiloxane is formed by mixing vinyl polydimethylsiloxane and rare earth lanthanum chloride according to the weight ratio of 5: 9.
Preferably, the adhesive is EVA hot melt adhesive.
Preferably, the spraying pressure in the insulating agent spraying treatment is 1-10 MPa.
Compared with the prior art, the invention has the following beneficial effects:
the fireproof insulation product is sprayed by adopting the insulating agent between the core layer and the surface layer matrix, the insulating agent is formed by raw materials such as melamine formaldehyde resin, modified carbon nanotubes and the like, the carbon nanotubes have high specific surface area and strong bearing capacity, and have high organic degree after modification, and simultaneously, the carbon nanotubes are used as an intermediate carrier to combine the melamine formaldehyde resin with the modified methyl phenyl silicone resin, so that the crosslinking reaction degree between the raw materials of the insulating agent is improved, the insulation performance of the product is improved, and the adhesive is adopted for bonding and integral forming, so that the integral stability of the product is improved, and the flame retardance and the insulation performance of the product are improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
Example 1.
The invention provides a battery module fireproof insulation product for preventing thermal runaway diffusion, which comprises a surface layer substrate, wherein the insulation product takes aerogel materials as a core layer, the core layer and the surface layer substrate are firstly sprayed with an insulating agent, and then are bonded and integrally formed by an adhesive after spraying;
the preparation method of the insulating agent comprises the following steps: mixing melamine formaldehyde resin and modified carbon nanotubes according to a weight ratio of 4:1, feeding the mixture into a reaction kettle for reaction, then adding an aqueous solution of octylphenol polyoxyethylene ether, then adding modified methyl phenyl silicone resin accounting for 2% of the total amount of the modified carbon nanotubes, reacting at 65 ℃ for 20min at a reaction speed of 210r/min, and obtaining the insulating agent after the reaction is finished.
The modification method of the modified carbon nanotube of this embodiment is: corona treatment is carried out on carbon nanotubes, the carbon nanotubes are sent into an acetone solvent, then a silane coupling agent KH560 is added, then 1, 5-naphthalene diisocyanate and triethanolamine are added, stirring is carried out for 35min at the rotating speed of 200r/min, and the modified carbon nanotubes are obtained after stirring.
The corona treatment of this example was carried out using a corona meter, the voltage of the corona treatment was 2kV and the corona time was 1 min.
The modification method of the modified methylphenyl silicone resin comprises the following steps: and (2) feeding the methyl phenyl silicone resin into a solution of vinyl polydimethylsiloxane, and then reacting at the reaction temperature of 90 ℃ for 20min at the reaction speed of 80r/min to obtain the modified methyl phenyl silicone resin.
The solution of vinyl polydimethylsiloxane in this example is prepared by mixing vinyl polydimethylsiloxane and rare earth lanthanum chloride in a weight ratio of 5: 7.
The adhesive of this embodiment is EVA hot melt adhesive.
The spraying pressure in the insulating agent spraying treatment of this example was 1 MPa.
Example 2.
The invention provides a battery module fireproof insulation product for preventing thermal runaway diffusion, which comprises a surface layer substrate, wherein the insulation product takes aerogel materials as a core layer, the core layer and the surface layer substrate are firstly sprayed with an insulating agent, and then are bonded and integrally formed by an adhesive after spraying;
the preparation method of the insulating agent comprises the following steps: mixing melamine formaldehyde resin and modified carbon nanotubes according to a weight ratio of 4:1, feeding the mixture into a reaction kettle for reaction, then adding aqueous solution of octylphenol polyoxyethylene ether, then adding modified methyl phenyl silicone resin accounting for 5% of the total amount of the modified carbon nanotubes, reacting at 75 ℃ for 30min at a reaction speed of 250r/min, and obtaining the insulating agent after the reaction is finished.
The modification method of the modified carbon nanotube of this embodiment is: corona treatment is carried out on carbon nanotubes, the carbon nanotubes are sent into an acetone solvent, then a silane coupling agent KH560 is added, then 1, 5-naphthalene diisocyanate and triethanolamine are added, stirring is carried out for 45min at the rotating speed of 300r/min, and the modified carbon nanotubes are obtained after stirring.
The corona treatment of this example was carried out using a corona meter, the voltage of the corona treatment was 10kV and the corona time was 5 min.
Preferably, the voltage of the corona treatment is 6kV and the corona time is 3 min.
The modification method of the modified methylphenyl silicone resin comprises the following steps: and (2) feeding the methyl phenyl silicone resin into a solution of vinyl polydimethylsiloxane, and then reacting at the reaction temperature of 110 ℃ for 30min at the reaction speed of 120r/min to obtain the modified methyl phenyl silicone resin.
The solution of vinyl polydimethylsiloxane in this example is prepared by mixing vinyl polydimethylsiloxane and rare earth lanthanum chloride in a weight ratio of 5: 11.
The adhesive of this embodiment is EVA hot melt adhesive.
The spraying pressure in the insulating agent spraying treatment of this example was 10 MPa.
Example 3.
The invention provides a battery module fireproof insulation product for preventing thermal runaway diffusion, which comprises a surface layer substrate, wherein the insulation product takes aerogel materials as a core layer, the core layer and the surface layer substrate are firstly sprayed with an insulating agent, and then are bonded and integrally formed by an adhesive after spraying;
the preparation method of the insulating agent comprises the following steps: mixing melamine formaldehyde resin and modified carbon nanotubes according to a weight ratio of 4:1, feeding the mixture into a reaction kettle for reaction, then adding aqueous solution of octylphenol polyoxyethylene ether, then adding modified methyl phenyl silicone resin accounting for 3.5% of the total weight of the modified carbon nanotubes, reacting at 70 ℃ for 25min at a reaction speed of 230r/min, and obtaining the insulating agent after the reaction is finished.
The modification method of the modified carbon nanotube of this embodiment is: corona treatment is carried out on carbon nanotubes, the carbon nanotubes are sent into an acetone solvent, then a silane coupling agent KH560 is added, then 1, 5-naphthalene diisocyanate and triethanolamine are added, the mixture is stirred for 40min at the rotating speed of 250r/min, and the modified carbon nanotubes are obtained after the stirring.
The corona treatment of this example was carried out using a corona meter at a voltage of 6kV for 1-5 min.
The modification method of the modified methylphenyl silicone resin comprises the following steps: and (2) feeding the methyl phenyl silicone resin into a solution of vinyl polydimethylsiloxane, and then reacting at the reaction temperature of 100 ℃ for 25min at the reaction speed of 100r/min to obtain the modified methyl phenyl silicone resin.
The solution of vinyl polydimethylsiloxane in this example is prepared by mixing vinyl polydimethylsiloxane and rare earth lanthanum chloride in a weight ratio of 5: 9.
The adhesive of this embodiment is EVA hot melt adhesive.
The spraying pressure in the insulating agent spraying treatment of this example was 5.5 MPa.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A battery module fireproof insulation product for preventing thermal runaway diffusion comprises a surface layer substrate, and is characterized in that an aerogel material is used as a core layer of the insulation product, the core layer and the surface layer substrate are sprayed with an insulating agent, and after spraying, an adhesive is used for bonding and integral forming;
the preparation method of the insulating agent comprises the following steps: mixing melamine formaldehyde resin and modified carbon nanotubes according to a weight ratio of 4:1, feeding the mixture into a reaction kettle for reaction, then adding aqueous solution of octylphenol polyoxyethylene ether, then adding modified methyl phenyl silicone resin accounting for 2-5% of the total amount of the modified carbon nanotubes, reacting at 65-75 ℃ for 20-30min at a reaction speed of 250r/min plus 210, and obtaining an insulating agent after the reaction is finished; the modification method of the modified carbon nanotube comprises the following steps: corona treatment is carried out on carbon nanotubes, the carbon nanotubes are sent into an acetone solvent, then a silane coupling agent KH560 is added, then 1, 5-naphthalene diisocyanate and triethanolamine are added, stirring is carried out for 35-45min at the rotating speed of 200 plus materials and 300r/min, and the stirring is finished, so as to obtain modified carbon nanotubes; the modification method of the modified methyl phenyl silicone resin comprises the following steps: the methyl phenyl silicone resin is fed into a solution of vinyl polydimethylsiloxane, and then the reaction is carried out for 20-30min at the reaction temperature of 90-110 ℃, the reaction speed is 80-120r/min, and the modified methyl phenyl silicone resin is obtained after the reaction is finished; the solution of the vinyl polydimethylsiloxane is formed by mixing the vinyl polydimethylsiloxane and the rare earth lanthanum chloride according to the weight ratio of 5 (7-11).
2. The fireproof insulation product for battery modules for preventing thermal runaway diffusion according to claim 1, wherein the corona treatment is carried out by a corona meter, the voltage of the corona treatment is 2-10kV, and the corona time is 1-5 min.
3. The fire-resistant insulation product for battery modules for preventing thermal runaway diffusion according to claim 2, wherein the voltage of corona treatment is 6kV and the corona time is 3 min.
4. The fireproof insulation product for battery modules for preventing thermal runaway diffusion according to claim 1, wherein the solution of vinyl polydimethylsiloxane is formed by mixing vinyl polydimethylsiloxane and rare earth lanthanum chloride according to a weight ratio of 5: 9.
5. The fireproof insulation product for battery modules for preventing thermal runaway diffusion according to claim 1, wherein the adhesive is EVA hot melt adhesive.
6. The fire-retardant insulation product for battery modules for preventing thermal runaway diffusion according to claim 1, wherein the spraying pressure in the insulation agent spraying treatment is 1-10 MPa.
CN202110164978.1A 2021-02-06 2021-02-06 Battery module fireproof insulation product for preventing thermal runaway diffusion Active CN112976704B (en)

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WO2023113932A1 (en) * 2021-12-16 2023-06-22 Dow Silicones Corporation Laminate barrier with ceramic or aerogel layer defining voids containing endothermic material

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Publication number Priority date Publication date Assignee Title
CN107914428A (en) * 2017-12-19 2018-04-17 深圳市德镒盟电子有限公司 A kind of new-energy automobile power battery heat-insulating fire-proofing material
CN108285612A (en) * 2017-01-09 2018-07-17 江南大学 A kind of high heat conductive insulating thermosetting polymer and preparation method

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JP5271462B1 (en) * 2011-10-31 2013-08-21 パナソニック株式会社 Secondary battery unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285612A (en) * 2017-01-09 2018-07-17 江南大学 A kind of high heat conductive insulating thermosetting polymer and preparation method
CN107914428A (en) * 2017-12-19 2018-04-17 深圳市德镒盟电子有限公司 A kind of new-energy automobile power battery heat-insulating fire-proofing material

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