CN114678632A - Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery - Google Patents
Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery Download PDFInfo
- Publication number
- CN114678632A CN114678632A CN202210252940.4A CN202210252940A CN114678632A CN 114678632 A CN114678632 A CN 114678632A CN 202210252940 A CN202210252940 A CN 202210252940A CN 114678632 A CN114678632 A CN 114678632A
- Authority
- CN
- China
- Prior art keywords
- fire
- layer
- extinguishing
- retardant
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000003063 flame retardant Substances 0.000 title claims abstract description 58
- 239000002985 plastic film Substances 0.000 title claims abstract description 47
- 229920006255 plastic film Polymers 0.000 title claims abstract description 47
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 title claims description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 30
- 239000000843 powder Substances 0.000 claims abstract description 69
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 35
- 239000003094 microcapsule Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 42
- 239000012790 adhesive layer Substances 0.000 claims description 21
- 239000011247 coating layer Substances 0.000 claims description 17
- 239000004677 Nylon Substances 0.000 claims description 16
- 229920001778 nylon Polymers 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 9
- 239000012792 core layer Substances 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- -1 polyethylene terephthalate Polymers 0.000 claims description 9
- 239000011527 polyurethane coating Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 6
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 239000012796 inorganic flame retardant Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 239000002775 capsule Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 5
- 239000011258 core-shell material Substances 0.000 claims description 4
- IDBYQQQHBYGLEQ-UHFFFAOYSA-N 1,1,2,2,3,3,4-heptafluorocyclopentane Chemical compound FC1CC(F)(F)C(F)(F)C1(F)F IDBYQQQHBYGLEQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 3
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 3
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 3
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 3
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000001962 electrophoresis Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000010977 jade Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- RMLFHPWPTXWZNJ-UHFFFAOYSA-N novec 1230 Chemical compound FC(F)(F)C(F)(F)C(=O)C(F)(C(F)(F)F)C(F)(F)F RMLFHPWPTXWZNJ-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000859 sublimation Methods 0.000 claims description 3
- 230000008022 sublimation Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- 238000007761 roller coating Methods 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
- H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
- H01M50/143—Fireproof; Explosion-proof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film and a battery, wherein a temperature-lowering fire-extinguishing type coating is coated on the outer layer of the aluminum-plastic film or a temperature-lowering fire-extinguishing type prefabricated film layer is compounded, microcapsule powder with flame-retardant and cooling fire-extinguishing functions is contained in the coating or the prefabricated film and is attached to the outermost layer of the aluminum-plastic film, when the lithium ion battery is out of control of heat or in fire, microcapsules in the coating are broken to release flame-retardant, fire-extinguishing and cooling components, so that the effects of quickly extinguishing the fire and lowering the temperature of the battery are achieved, the ignition and explosion probability of the battery is prevented, particularly for a battery pack in power and energy storage, the overall damage of the temperature out of control of a single battery cell to the battery pack can be quickly reduced, and the overall safety of the overall battery pack can be protected.
Description
Technical Field
The invention relates to the field of battery packaging materials, in particular to a coolable fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and a battery.
Background
Along with the technical improvement and the increase of the yield of soft package lithium ion batteries in recent years, the requirements of soft package lithium ion battery packaging materials, particularly the packaging of flat soft package batteries of mobile phones, are getting bigger and bigger, and an aluminum plastic film is a key material for packaging soft package lithium ion batteries and has become a mainstream of application development of soft package lithium ion battery packaging composite materials in the future.
Traditional plastic-aluminum membrane comprises outer protective layer, middle aluminium foil barrier layer and inlayer heat-seal layer basically, bonds with the adhesive between the layer, and outer protective layer generally chooses nylon to select to compound, selects polyethylene terephthalate (PET) to strengthen the complex now in addition, improves combined material's barrier properties, antifriction performance, uses black membrane to carry out battery encapsulation colour and changes the sight simultaneously. However, the lithium ion battery inevitably faces damages such as extrusion, piercing, temperature shock, overcharge, short circuit and the like in the long-term use and storage process, and the lithium ion battery is burnt or even exploded. In recent years, explosion accidents such as mobile phones, electric vehicles, energy storage power stations and the like frequently occur, and serious equipment damage and casualties are caused, so that the safety problem of the lithium ion battery is very important to solve. The safety mode of the traditional improved lithium ion battery basically focuses on improving the materials of an inner core and a diaphragm of the battery, but innovation is needed for improving the safety of the lithium ion battery from the improvement of an aluminum plastic film.
Disclosure of Invention
The invention aims to solve the technical problem of providing a coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film and a battery, wherein the aluminum-plastic film has excellent insulating property, barrier property and chemical stability, and also has the functions of flame retardance, fire extinguishment and cooling.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a but cooling type of putting out a fire hinders fire lithium ion battery plastic-aluminum membrane, this plastic-aluminum membrane be for having 6 layers or 8 layers of structures, by copolymerization propylene layer, aluminium foil layer, nylon layer or nylon and polyethylene glycol terephthalate composite bed, adhesive layer and cooling fire extinguishing coating layer or cooling prefabricated rete of putting out a fire multiple material coating complex such as prefabricated rete form respectively. The 6-layer structural aluminum plastic film sequentially comprises a copolymerized propylene layer CPP, an adhesive layer, an aluminum foil layer AL, an adhesive layer, a nylon layer, a cooling fire extinguishing coating layer or the adhesive layer and a prefabricated film layer from inside to outside; the 8-layer aluminum plastic film sequentially comprises a copolymerized propylene layer CPP, an adhesive layer, an aluminum foil layer AL, an adhesive layer, a nylon layer, an adhesive layer, a polyethylene terephthalate layer, a cooling fire-extinguishing coating layer or the adhesive layer and a prefabricated film layer from inside to outside. The paint type in the paint layer is selected from one of water paint, solvent paint, powder paint and high solid powder paint, and the solvent paint is preferred. The size thickness of the coating layer or the prefabricated film layer is 1-100um, and the coating contains flame-retardant, cooling and fire-extinguishing microcapsule powder, preferably 5-25 um.
The solvent-based coating of the aluminum-plastic film is preferably one of a fluorine-containing polyurethane coating, a polyester polyurethane coating or an acrylic polyurethane coating. The coating resin is preferably a fluororesin andor a tetrafluoro resin andor in combination with other resins.
The aluminum plastic film and the powder coating are selected from thermosetting or thermoplastic powder coatings. The film forming material in the thermosetting powder coating is one or a combination of epoxy powder, polyester powder and polyacrylate powder; the film forming material in the thermoplastic powder coating is selected from one or a combination of more of polyvinyl chloride powder, nylon powder, fluororesin powder and latex powder, and is mixed with flame-retardant, temperature-reducing and fire-extinguishing microcapsule powder, the ratio of the film forming material to the capsule powder is 8:2-2:8, preferably 8:2-5:5, and the ratio of the flame-retardant material to the temperature-reducing material in the capsule powder is 1:9-9:1, so that the proper ratio and thickness are selected according to the difference between the battery capacity and the material to achieve the temperature-reducing and fire-extinguishing aging.
The coating layer of the aluminum-plastic film can also be a prefabricated film material and is combined with other layers of the aluminum-plastic film in a dry compounding mode. The prefabricated film material preferably adopts a fluorine-containing material as a bonding main body, and is mixed with the flame-retardant, cooling and fire-extinguishing microcapsule powder.
The coating or the prefabricated film of the aluminum-plastic film has a core-shell structure of microcapsule powder, the core layer material mainly comprises a flame-retardant fire-extinguishing component and a cooling component, and the shell layer material is one or a combination of melamine-urea-formaldehyde resin or melamine-urea-epoxy resin, melamine-urea-polyacrylate resin and montmorillonite.
The core layer material in the microcapsule powder of the aluminum plastic film has flame retardant and fire extinguishing components selected from one or combination of halogen flame retardant, phosphorus flame retardant, nitrogen flame retardant and inorganic flame retardant. The halogen-based flame retardant is one or a combination of fluorine-based substances such as perfluoro (2-methyl-3-pentanone), the phosphorus-based flame retardant is one or a combination of inorganic substances such as ammonium polyphosphate and ammonium phosphate and organic substances such as phosphate and organic hypophosphite, the nitrogen-based flame retardant is one or a combination of melamine and melamine cyanurate, and the inorganic flame retardant is one or a combination of aluminum hydroxide and magnesium hydroxide. The coolant in the core layer material in the microcapsule powder is used for a high-temperature rapid heat absorption sublimation material, and the component is preferably one or a combination of more of 1, 1, 2, 2, 3, 3, 4-Heptafluorocyclopentane (HFC) or homologues thereof, PA6, jade powder, zirconium dioxide powder, silicon dioxide powder, a dispersing agent and a coupling agent.
The aluminum plastic film is formed by adhering and laminating polypropylene, aluminum foil, nylon and polyethylene terephthalate, and the coating layer is formed by one or a combination of brushing, spraying, rolling, dipping and electrophoresis.
The invention also provides a soft package battery, a hard shell battery and a cylindrical battery of the aluminum plastic film of the coolable fire-extinguishing type flame-retardant lithium ion battery.
After the technical scheme is adopted, the invention has the beneficial effects that: the surface of the aluminum plastic film is coated with effective components containing flame retardance, fire extinguishment and cooling, and under the condition that a certain battery or batteries in the battery pack are out of control and have temperature runaway, the microcapsules are broken at a certain temperature to release the flame retardance, fire extinguishment and cooling components in the microcapsules, so that an early fire source can be extinguished, and the dual functions of flame retardance and fire extinguishment are realized. Meanwhile, the coolant in the microcapsules can realize quick cooling of temperature, prevent secondary combustion of the battery and perform safety protection on the battery pack and the battery.
Drawings
FIG. 1 is a schematic view of an aluminum-plastic film (6 layers) of a coolable fire-extinguishing type flame-retardant lithium ion battery of the present invention;
fig. 2 is a schematic view of an aluminum-plastic film (8 layers) of a coolable fire-extinguishing type flame-retardant lithium ion battery of the invention.
Wherein:
1. the paint comprises a polypropylene copolymer layer CPP, a 2 adhesive layer, a 3 aluminum foil layer AL, a 4 adhesive layer, a 5 nylon layer, a 6 paint layer, a 7 adhesive layer and a 8 polyethylene terephthalate layer.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples (taking 6-layer aluminum-plastic film as an example). It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, the invention provides a coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film which sequentially comprises a propylene copolymer layer CPP (1), an adhesive layer (2), an aluminum foil layer AL (3), an adhesive layer (4), a nylon layer (5) and a coating layer (6) from inside to outside.
The coating type in the coating layer of the aluminum plastic film is one of water-based coating, solvent-based coating, powder coating and high-solid powder coating, and the solvent-based coating is preferred. The size thickness of the coating layer or the prefabricated film layer is 1-100um, and the coating contains flame-retardant, cooling and fire-extinguishing microcapsule powder, preferably 5-25 um.
The aluminum plastic film and the solvent type coating are preferably one of fluorine-containing polyurethane coating or polyester polyurethane coating or acrylic polyurethane coating. The coating resin is preferably a fluororesin andor a tetrafluoroethylene resin andor in combination with other resins.
The aluminum plastic film and the powder coating are selected from one of thermosetting or thermoplastic powder coatings. The film forming material in the thermosetting powder coating is one or a combination of epoxy powder, polyester powder and polyacrylate powder; the film forming material in the thermoplastic powder coating is selected from one or a combination of more of polyvinyl chloride powder, nylon powder, fluororesin powder and latex powder, and is mixed with flame-retardant, temperature-reducing and fire-extinguishing microcapsule powder, the ratio of the film forming material to the capsule powder is 8:2-2:8, preferably 8:2-5:5, and the ratio of the flame-retardant material to the temperature-reducing material in the capsule powder is 1:9-9:1, so that the proper ratio and thickness are selected according to the difference between the battery capacity and the material to achieve the temperature-reducing and fire-extinguishing aging.
The coating layer of the aluminum-plastic film can also be a prefabricated film material and is combined with other layers of the aluminum-plastic film in a dry compounding way. The prefabricated film material preferably adopts a fluorine-containing material as a bonding main body, and is mixed with the flame-retardant, cooling and fire-extinguishing microcapsule powder.
The coating or the prefabricated film of the aluminum-plastic film is provided with microcapsule powder in a core-shell structure, the core layer material mainly comprises a flame-retardant fire-extinguishing component and a cooling component, and the shell layer material is one or a combination of melamine-urea-formaldehyde resin or melamine-urea-epoxy resin, melamine-urea-polyacrylate resin and montmorillonite.
The core layer material in the microcapsule powder of the aluminum-plastic film has flame retardant and fire extinguishing components of one or a combination of halogen flame retardant, phosphorus flame retardant, nitrogen flame retardant and inorganic flame retardant. The halogen flame retardant is one or a combination of fluorine-containing substances such as perfluoro (2-methyl-3-pentanone), the phosphorus flame retardant is one or a combination of inorganic substances such as ammonium polyphosphate and ammonium phosphate and organic substances such as phosphate and organic hypophosphite, the nitrogen flame retardant is one or a combination of melamine and melamine cyanurate, and the inorganic flame retardant is one or a combination of aluminum hydroxide and magnesium hydroxide. The coolant in the core layer material in the microcapsule powder is used for high-temperature rapid heat absorption sublimation materials, and the components are preferably one or a combination of more of 1, 1, 2, 2, 3, 3, 4-Heptafluorocyclopentane (HFC) or homologues thereof, PA6, jade powder, zirconium dioxide powder, silicon dioxide powder, a dispersing agent and a coupling agent.
The invention also provides an 8-layer structure of the coolable fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film, which sequentially comprises a propylene copolymer layer CPP (1), an adhesive layer (2), an aluminum foil layer AL (3), an adhesive layer (4), a nylon layer (5), an adhesive layer (7), a polyethylene terephthalate layer (8) and a coating layer (6) from inside to outside,
the aluminum plastic film is formed by gluing and laminating polypropylene, aluminum foil, nylon and polyethylene glycol terephthalate in the aluminum plastic film, and the coating layer is formed by one or a combination of brushing, spraying, roller coating, dipping and electrophoresis.
The invention also provides a soft package battery, a hard shell battery and a cylindrical battery which are made of the aluminum-plastic film of the coolable fire-extinguishing type flame-retardant lithium ion battery.
The product of the invention achieves the following indexes through determination:
1. through an ignition test of the soft package battery, the aluminum plastic film coating microcapsule is broken, open fire suppression and flame retardance can be realized within 8s, and secondary combustion is avoided;
2. the released coolant allowed the cell to cool rapidly from 800 c to 30 c by placing the cell on a heated hot plate for observation through a cell warm-up test.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (10)
1. The utility model provides a but cooling type of putting out a fire hinders lithium ion battery plastic-aluminum membrane which characterized in that is from inside to outside in proper order for copolymerization propylene layer CPP (1), adhesive layer (2), aluminium foil layer AL (3), adhesive layer (4), nylon layer (5), cooling fire extinguishing paint layer (6) or adhesive layer (6-1) and add prefabricated rete (6-2).
2. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film as claimed in claim 1, wherein the type of the coating in the temperature-reducing fire-extinguishing coating layer is one of water-based coating, solvent-based coating, powder coating and high-solid powder coating, the coating contains flame-retardant, temperature-reducing and fire-extinguishing microcapsule powder, and the thickness of the temperature-reducing fire-extinguishing coating layer and the prefabricated film layer is 1-100 μm.
3. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film according to claim 2, wherein the solvent-based coating is one of a fluorine-containing polyurethane coating or a polyester polyurethane coating or an acrylic polyurethane coating, and the coating resin is one or a combination of a fluorine-containing resin and/or a tetrafluoro resin.
4. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film according to claim 2, wherein the powder coating is one of thermosetting or thermoplastic powder coatings, and the film-forming substance in the thermosetting powder coating is one or a combination of epoxy powder, polyester powder and polyacrylate powder; the film forming substance in the thermoplastic powder coating is one or a combination of more of polyvinyl chloride powder, nylon powder, fluororesin powder and latex powder, and is mixed with the flame-retardant, cooling and fire-extinguishing microcapsule powder, wherein the ratio of the film forming substance to the capsule powder is 8:2-2:8, and the ratio of the flame-retardant material to the cooling material in the cooling and fire-extinguishing microcapsule powder is 1:9-9: 1.
5. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film as claimed in claim 2, wherein the temperature-reducing fire-extinguishing coating layer is a prefabricated film material, and is combined with other layers of the aluminum-plastic film in a dry compounding manner, the prefabricated film material is a fluorine-containing material serving as a bonding main body, and mixed flame-retardant, temperature-reducing and fire-extinguishing microcapsule powder is prepared.
6. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film according to claim 2, characterized in that the temperature-reducing fire-extinguishing coating layer and the temperature-reducing fire-extinguishing microcapsule powder in the prefabricated film layer are of a core-shell structure, the core layer material of the core-shell structure comprises a flame-retardant fire-extinguishing component and a cooling component, and the shell layer material is one or a combination of melamine-urea-formaldehyde resin or melamine-urea-epoxy resin, melamine-urea-polyacrylate resin and montmorillonite.
7. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film as claimed in claim 6, wherein the flame-retardant and fire-extinguishing component in the core layer material is one or a combination of a halogen flame retardant, a phosphorus flame retardant, a nitrogen flame retardant and an inorganic flame retardant, the halogen flame retardant is one or a combination of perfluoro (2-methyl-3-pentanone) substances, the phosphorus flame retardant is one or a combination of ammonium polyphosphate, ammonium phosphate, phosphate and organic hypophosphite, the nitrogen flame retardant is one or a combination of melamine and melamine cyanurate, the inorganic flame retardant is one or a combination of aluminum hydroxide and magnesium hydroxide, the core layer material in the cooling and fire-extinguishing microcapsule powder body is provided with a coolant, the coolant is a high-temperature rapid heat-absorption sublimation material, and the components are 1, 1, 2, 2, 3, 3, 4-Heptafluorocyclopentane (HFC), PA6, jade powder, zirconium dioxide powder, silicon dioxide powder, dispersant and coupling agent.
8. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum-plastic film according to claim 1, wherein an adhesive layer (7) and a polyethylene terephthalate layer (8) are further arranged between the nylon layer (5) and the cooling fire-extinguishing paint layer (6) or the adhesive layer (6-1) and the prefabricated film layer (6-2).
9. The coolable fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film according to claim 8, wherein the copolymerized propylene layer CPP, the aluminum foil layer AL, the nylon layer and the polyethylene terephthalate layer are applied in a gluing and laminating manner, and the temperature-reducing fire-extinguishing coating layer is one or a combination of brushing, spraying, roller coating, dipping and electrophoresis.
10. A pouch cell, a hard-shell cell, a cylindrical cell comprising the coolable fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252940.4A CN114678632A (en) | 2022-03-15 | 2022-03-15 | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210252940.4A CN114678632A (en) | 2022-03-15 | 2022-03-15 | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114678632A true CN114678632A (en) | 2022-06-28 |
Family
ID=82074162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210252940.4A Pending CN114678632A (en) | 2022-03-15 | 2022-03-15 | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114678632A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155307A (en) * | 2017-12-21 | 2018-06-12 | 桑德集团有限公司 | Aluminum plastic film and application thereof |
| CN110744904A (en) * | 2019-10-11 | 2020-02-04 | 成都新柯力化工科技有限公司 | Elastic aluminum plastic film for lithium battery flexible package and preparation method |
| KR20200075167A (en) * | 2018-12-17 | 2020-06-26 | (주)엘라이트 | Capsule containing fire extinguishing compositions and composition containing the same |
| CN210911486U (en) * | 2019-05-15 | 2020-07-03 | 上海恩捷新材料科技有限公司 | Double-layer flame-retardant aluminum-plastic film |
| CN113181589A (en) * | 2021-03-22 | 2021-07-30 | 华中科技大学 | High-efficiency fire extinguishing agent and fire safety extinguishing process |
| CN113858738A (en) * | 2021-10-22 | 2021-12-31 | 浙江锂盾新能源材料有限公司 | Temperature-sensitive color-changing aluminum-plastic film for battery |
| CN218385435U (en) * | 2022-03-15 | 2023-01-24 | 浙江锂盾新能源材料有限公司 | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film |
-
2022
- 2022-03-15 CN CN202210252940.4A patent/CN114678632A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155307A (en) * | 2017-12-21 | 2018-06-12 | 桑德集团有限公司 | Aluminum plastic film and application thereof |
| KR20200075167A (en) * | 2018-12-17 | 2020-06-26 | (주)엘라이트 | Capsule containing fire extinguishing compositions and composition containing the same |
| CN210911486U (en) * | 2019-05-15 | 2020-07-03 | 上海恩捷新材料科技有限公司 | Double-layer flame-retardant aluminum-plastic film |
| CN110744904A (en) * | 2019-10-11 | 2020-02-04 | 成都新柯力化工科技有限公司 | Elastic aluminum plastic film for lithium battery flexible package and preparation method |
| CN113181589A (en) * | 2021-03-22 | 2021-07-30 | 华中科技大学 | High-efficiency fire extinguishing agent and fire safety extinguishing process |
| CN113858738A (en) * | 2021-10-22 | 2021-12-31 | 浙江锂盾新能源材料有限公司 | Temperature-sensitive color-changing aluminum-plastic film for battery |
| CN218385435U (en) * | 2022-03-15 | 2023-01-24 | 浙江锂盾新能源材料有限公司 | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101994813B1 (en) | Self-extinguishing adhesive tape | |
| US9136558B2 (en) | Impact resistant battery | |
| KR102335202B1 (en) | Secondary Battery with improved Stability having Heat Expandable layer and Method thereof | |
| KR101471666B1 (en) | Wrapping material for Secondary Batteries and Secondary Batteries comprising the same | |
| US8178225B2 (en) | Battery and preparation method thereof | |
| US20100035144A1 (en) | Electrode assembly and lithium secondary battery using the same | |
| CN218385435U (en) | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film | |
| JP7019991B2 (en) | Battery packaging materials, their manufacturing methods, and batteries | |
| JPWO2019156113A1 (en) | Battery packaging material, method for producing the same, and battery | |
| US20080020270A1 (en) | Secondary battery with improved safety | |
| CN108155307B (en) | Aluminum plastic film and application thereof | |
| CN108091782A (en) | Accumulator and accumulator group | |
| EP4064423A1 (en) | Thermal insulation element for batteries | |
| US20220263166A1 (en) | Battery Case For Secondary Battery And Method For Manufacturing Pouch Type Secondary Battery | |
| CN110010830A (en) | A kind of lithium battery diaphragm | |
| JP2020537291A (en) | Pouch type secondary battery and pouch for secondary battery | |
| CN114678632A (en) | Cooling fire-extinguishing type flame-retardant lithium ion battery aluminum plastic film and battery | |
| CN108054438A (en) | Aluminum plastic film and application thereof and the battery for including it | |
| CN209056524U (en) | A kind of battery pack with thermal expansion adiabatic apparatus | |
| KR20210096723A (en) | Flame retardant composite pad and method for manufacturing the same, secondary battery module and secondary battery pack including the same | |
| JP2009206101A (en) | Adhesive film for sealing lithium battery metallic terminal part | |
| KR102178726B1 (en) | A pouch case for a secondary battery and a pouch type secondary battery | |
| CN205582974U (en) | Soft packet of lithium cell fire resistive construction | |
| KR101185255B1 (en) | Black ink composition with excellent electric insulation and coverness for high density insulating tape and high density black insulating tape using the same | |
| CN213623953U (en) | Flame-retardant PET (polyethylene terephthalate) insulating protective film for aluminum-shell power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |