WO2022108330A1 - 전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 - Google Patents
전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 Download PDFInfo
- Publication number
- WO2022108330A1 WO2022108330A1 PCT/KR2021/016890 KR2021016890W WO2022108330A1 WO 2022108330 A1 WO2022108330 A1 WO 2022108330A1 KR 2021016890 W KR2021016890 W KR 2021016890W WO 2022108330 A1 WO2022108330 A1 WO 2022108330A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- protective cover
- electric vehicle
- sandwich panel
- core layer
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 112
- 239000012792 core layer Substances 0.000 claims abstract description 85
- 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 claims abstract description 83
- 239000003063 flame retardant Substances 0.000 claims abstract description 82
- 239000010410 layer Substances 0.000 claims abstract description 48
- 239000012790 adhesive layer Substances 0.000 claims abstract description 28
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 25
- -1 polyethylene Polymers 0.000 claims description 48
- 239000000853 adhesive Substances 0.000 claims description 43
- 230000001070 adhesive effect Effects 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 42
- 239000004743 Polypropylene Substances 0.000 claims description 35
- 229920001155 polypropylene Polymers 0.000 claims description 34
- 239000003365 glass fiber Substances 0.000 claims description 31
- 238000004080 punching Methods 0.000 claims description 26
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 19
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 12
- 238000009960 carding Methods 0.000 claims description 11
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 7
- 239000008397 galvanized steel Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000003522 acrylic cement Substances 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims description 6
- 239000011491 glass wool Substances 0.000 claims description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 18
- 239000000463 material Substances 0.000 description 18
- 229920001187 thermosetting polymer Polymers 0.000 description 16
- 230000000694 effects Effects 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 13
- 239000011162 core material Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 229920006332 epoxy adhesive Polymers 0.000 description 8
- 239000007769 metal material Substances 0.000 description 7
- 239000004745 nonwoven fabric Substances 0.000 description 7
- 238000001723 curing Methods 0.000 description 6
- 239000003733 fiber-reinforced composite Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000000016 photochemical curing Methods 0.000 description 4
- 229920000058 polyacrylate Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000001029 thermal curing Methods 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000004844 aliphatic epoxy resin Substances 0.000 description 2
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 2
- 229920013640 amorphous poly alpha olefin Polymers 0.000 description 2
- 229940106691 bisphenol a Drugs 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007607 die coating method Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000007756 gravure coating Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000003562 lightweight material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 2
- 229920003986 novolac Polymers 0.000 description 2
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 101000712600 Homo sapiens Thyroid hormone receptor beta Proteins 0.000 description 1
- 239000004609 Impact Modifier Substances 0.000 description 1
- 102100033451 Thyroid hormone receptor beta Human genes 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 235000019169 all-trans-retinol Nutrition 0.000 description 1
- 239000011717 all-trans-retinol Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- QVLTXCYWHPZMCA-UHFFFAOYSA-N po4-po4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002025 wood fiber Substances 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- 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
- B32B5/02—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 structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/229—Composite material consisting of a mixture of organic and inorganic materials
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
- H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
- H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
- B32B2262/144—Non-woven fabric
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/07—Parts immersed or impregnated in a matrix
- B32B2305/076—Prepregs
-
- 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
- B32B2307/302—Conductive
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- 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
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/737—Dimensions, e.g. volume or area
- B32B2307/7375—Linear, e.g. length, distance or width
- B32B2307/7376—Thickness
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Definitions
- the present invention relates to a sandwich panel for an electric vehicle battery pack protective cover, a manufacturing method thereof, and an electric vehicle battery pack protective cover comprising the same.
- the battery pack protective cover which is a part that protects the battery pack, which is a key component in an electric vehicle, is installed on the upper or lower part of the battery pack housing and corresponds to an essential configuration for protecting the battery pack from external impact and moisture penetration.
- the protective cover of the electric vehicle battery pack is currently used metal materials such as steel, titanium, aluminum, or a fiber-reinforced composite material of thermoplastic and thermosetting properties.
- metal protective covers have the disadvantages of high thermal conductivity and high weight, and fiber-reinforced composites have low thermal conductivity and are lightweight materials but are difficult to manufacture with thin thickness, making it difficult to secure battery space compared to metal materials, and flame retardant performance. It had the disadvantage of having to include a separate flame-retardant layer in order to secure it.
- Patent Document 1 Republic of Korea Patent Publication No. 10-2017-0140111, Sandwich panel and manufacturing method thereof
- the present inventors have a sandwich for an electric vehicle battery pack protective cover that can lighten the material of the battery pack protective cover as a part included in a vehicle, have excellent flame retardancy, and secure mechanical properties
- the panel was studied to complete the present invention.
- an object of the present invention is to apply a core layer and a skin layer comprising a core material of a nonwoven fiber aggregate structure including 'thermoplastic resin and flame retardant fiber' instead of a conventional metal material or fiber-reinforced composite material when manufacturing a sandwich panel
- An object of the present invention is to provide a sandwich panel for an electric vehicle battery pack protective cover, which is lightweight and has excellent flame retardancy, and excellent mechanical properties, a manufacturing method thereof, and an electric vehicle battery pack protective cover comprising the same.
- a core layer having a nonwoven fiber aggregate structure having a nonwoven fiber aggregate structure; a skin layer laminated on at least one surface of the core layer; and an adhesive layer for adhering the core layer and the skin layer, wherein the core layer includes a thermoplastic resin and a flame retardant fiber, and provides a sandwich panel for a protective cover for an electric vehicle battery pack.
- the core layer may include 30% by weight or more of flame retardant fibers based on the total weight of the core layer.
- the core layer may include 50% by weight or more of flame-retardant fibers based on the total weight of the core layer.
- the core layer may include 60% by weight or more of flame retardant fibers based on the total weight of the core layer.
- the core layer may include 70% by weight or less of flame retardant fibers based on the total weight of the core layer.
- the core layer may further include a phosphorus-based flame retardant.
- the thermoplastic resin is polyethylene, polypropylene, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyamide, polyphenylene sulfide, and combinations thereof. It may be selected from the group consisting of.
- the flame-retardant fiber may be selected from the group consisting of glass fiber, flame-retardant polyethylene terephthalate (flame-retardant PET), flame-retardant polypropylene (flame-retardant PP), and combinations thereof.
- the glass fiber is C-glass (C-Glass), E-glass (E-Glass), S-glass (S-Glass), glass wool (Glass-Wool) and these It may be selected from the group consisting of combinations.
- the skin layer is selected from the group consisting of aluminum, iron, stainless steel (SUS), magnesium, electro-galvanized steel sheet (EGI), hot-dip galvanized steel sheet (GI), and combinations thereof.
- SUS stainless steel
- EPI electro-galvanized steel sheet
- GI hot-dip galvanized steel sheet
- the adhesive layer may include one selected from the group consisting of an olefin-based adhesive, a urethane-based adhesive, an acrylic adhesive, an epoxy-based adhesive, and combinations thereof.
- It provides an electric vehicle battery pack protective cover, including a sandwich panel for the electric vehicle battery pack protective cover.
- the sandwich panel for a protective cover for an electric vehicle battery pack of the present invention has excellent formability because the material is lightweight and thin through a nonwoven fiber assembly structure, and flame retardant fibers are included in the core material even if a separate functional layer is not applied. As well as securing performance, it has excellent mechanical properties, electromagnetic wave shielding and insulation effects.
- FIG. 1 is a schematic diagram of a sandwich panel according to a preferred embodiment of the present invention.
- FIG. 2 is a schematic diagram illustrating a flame-retardant function and a non-combustible function according to a sandwich panel according to a preferred embodiment of the present invention.
- FIG. 3 is a photograph of a thickness expansion rate test result of a sandwich panel according to an embodiment of the present invention.
- a core layer of a nonwoven fiber aggregate structure to include a thermoplastic resin (PP, PET and PA, etc.) and a flame retardant fiber (glass fiber, flame retardant PET, etc.) within the core of the nonwoven fabric as shown in FIG.
- Electric vehicle battery pack effective in electromagnetic wave shielding by reducing the weight and improving formability, flame-retardant performance, and heat insulation performance It has come to manufacture a sandwich panel for a protective cover.
- a sandwich panel for a protective cover for an electric vehicle battery pack includes a core layer having a nonwoven fiber aggregate structure; a skin layer laminated on at least one surface of the core layer; and an adhesive layer bonding the core layer and the skin layer to each other, wherein the core layer includes a thermoplastic resin and a flame-retardant fiber.
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention includes a core layer having a nonwoven fiber aggregate structure, and the core layer may include two or more nonwoven fiber aggregates.
- the 'nonwoven fiber aggregate structure' is a structure including two or more nonwoven fiber aggregates
- the 'nonwoven fiber aggregate' refers to a nonwoven fiber on a web or a sheet by bonding with an adhesive or , refers to an adhesion using a thermoplastic fiber
- the core layer according to the present invention has a non-woven fiber aggregate in which the fibers are entangled with each other, all or part of the fibers are fused by a binder, and thus, there is a natural The pores are included, the air permeability is improved, and weight reduction can be improved.
- the fibers have natural pores formed while being entangled with each other, unlike the case where pores are artificially formed by an additive such as a foaming agent, it is a non-foaming core, so manufacturing costs can be reduced and the foaming process can be omitted. Efficiency can also be increased. Through the structure of the nonwoven fiber aggregate, moldability and processability may be improved compared to conventional thermoplastic or thermosetting foamed resins.
- the core layer includes a thermoplastic resin and a flame retardant fiber.
- the thermoplastic resin may be a resin capable of deforming a shape by applying heat again after molding by applying heat.
- the elongation may be excellent and the moldability may be excellent.
- it in addition to molding by applying heat again in the state of the plate, it has excellent formability during cold forming, and has the advantage of lower raw material cost compared to thermosetting resins.
- the thermoplastic resin may be selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyamide, polyphenylene sulfide, and combinations thereof, preferably Preferably, it may be selected from the group consisting of polypropylene, polyethylene terephthalate, polyamide, and combinations thereof.
- the core layer may include 30% by weight or more, 35% by weight or more, 40% by weight or more, 50% by weight or more of the thermoplastic resin based on the total weight of the core layer, and 70% by weight or less, 65% by weight or less, 60% by weight or less , or 50% by weight or less of the thermoplastic resin.
- the weight ratio of the thermoplastic resin is satisfied, the nonwoven fiber assembly is manufactured based on the thermoplastic resin to secure the formability of the core layer and mechanical properties as a core material, while reducing the weight of the panel, and flame retardant suitable as a battery cover material performance can be ensured.
- the flame-retardant fiber may be a fiber having excellent durability without burning even if the fiber catches fire, or a processed fiber processed to have such a property.
- the flame-retardant fiber may be selected from the group consisting of glass fiber, flame-retardant polyethylene terephthalate (flame-retardant PET), flame-retardant polypropylene (flame-retardant PP), and combinations thereof, preferably glass fiber. Since the flame-retardant fiber is included in the core layer, shrinkage or melting of the core layer may have insignificant effects even after ignition in case of fire, and excellent flame-retardant performance that does not burn well may be secured.
- the glass fiber may be selected from the group consisting of C-Glass, E-Glass, S-Glass, Glass-Wool, and combinations thereof. , preferably E-glass (E-Glass).
- the core layer may include 30% by weight or more, 40% by weight or more, 50% by weight or more, 60% by weight or more of the flame retardant fiber based on the total weight of the core layer, and 70% by weight or less, 60% by weight or less, or less than by weight , or 60% by weight or less of flame retardant fibers.
- the core layer may further include a phosphorus-based flame retardant.
- a phosphorus-based flame retardant By including the phosphorus-based flame retardant, there is an effect of implementing excellent flame retardancy and stability against heat.
- the core layer may include 5 wt% or more, 10 wt% or more, 15 wt% or more, 20 wt% or more of a phosphorus-based flame retardant based on the total weight of the core layer, and 30 wt% or less, 25 wt% or less, 20 wt% or less , 15% by weight or less of a phosphorus-based flame retardant.
- the phosphorus-based flame retardant is phosphate ester, phosphate (phosphate), phosphonate (phosphonate), phosphinate (phosphinate), phosphine oxide (phosphine oxide), phosphazene (phosphazene), phosphoric acid (Phosphoric Acid) and these It may be selected from the group consisting of combinations.
- the core layer may further include a filler such as carbon fiber, polymer fiber, wood fiber, natural fiber, and the like.
- a filler such as carbon fiber, polymer fiber, wood fiber, natural fiber, and the like.
- additives such as impact modifiers, heat stabilizers, antioxidants, water repellents, and antistatic agents may be further included.
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention includes a skin layer laminated on at least one surface of the core layer.
- the skin layer may be formed of a metal material, preferably from the group consisting of aluminum, iron, stainless steel (SUS), magnesium, electro-galvanized steel sheet (EGI), hot-dip galvanized steel sheet (GI), and combinations thereof. may be selected.
- a skin layer including an electric galvanized steel sheet (EGI) may be applied to a sandwich panel for a protective cover for an electric vehicle battery pack.
- a skin layer containing aluminum may be applied to a sandwich panel for a protective cover for an electric vehicle battery pack.
- any one of a photocuring method, a thermosetting method, and a thermocompression bonding method may be used.
- a sandwich panel may be manufactured by thermosetting or thermocompression bonding a laminate including a skin layer, a core layer, and an adhesive.
- the thermal curing may be performed at 110 to 240° C. for approximately 1 minute to 1 hour, and curing may also be performed at room temperature for approximately 1 to 10 hours.
- the thickness of the skin layer may be 0.1 to 2 mm.
- the skin layer of the conventional sandwich panel had a problem in that the thickness of the skin layer had to be thick due to the low mechanical strength of the core material, thereby increasing the weight of the sandwich panel.
- the thickness of the skin layer is within the above range, but the mechanical properties are not rapidly reduced, and thus the weight can be reduced.
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention includes an adhesive layer for adhering the core layer and the skin layer.
- the adhesive layer is applied between the core layer and the skin layer to adhere the core layer and the skin layer.
- the adhesive layer is preferably applied with a uniform thickness in consideration of the viscosity.
- a sandwich panel may be manufactured by laminating the core layer and the skin layer and then curing, or the core layer and the skin layer may be laminated and then thermocompressed to manufacture a sandwich panel.
- the adhesive penetrates into the core layer during curing or thermocompression bonding, there is an effect of improving the adhesion between the skin layer and the core layer by mechanical bonding as well as chemical bonding with the components constituting the core layer.
- the chemical bonding means that the adhesive becomes a covalent bond with the upper surface and the lower surface of the core layer, a hydrogen bond, a van der Waals bond, an ionic bond, and the like.
- the mechanical bonding refers to a form in which the rings are physically hung as if they were hung with each other while the adhesive permeated into the core layer. This form is also called mechanical interlocking. Due to the natural pores contained in the core layer, the adhesive permeates the upper and lower surfaces of the core layer.
- the adhesive constituting the adhesive layer may include one selected from the group consisting of an olefin-based adhesive, a urethane-based adhesive, an acrylic adhesive, an epoxy-based adhesive, and combinations thereof.
- the olefin-based adhesive may be at least one selected from the group consisting of polyethylene, polypropylene, and amorphous polyalphaolefin adhesives.
- the urethane-based adhesive may be used without limitation as long as it is an adhesive including a urethane structure (-NH-CO-O-).
- the acrylic adhesive may include at least one of a polymethyl methacrylate adhesive, a hydroxyl group-containing polyacrylate adhesive, and a carboxy group-containing polyacrylate adhesive.
- the epoxy adhesive includes at least one of bisphenol-A type epoxy adhesive, bisphenol-F type epoxy adhesive, novolak epoxy adhesive, linear aliphatic epoxy resins, and cycloaliphatic epoxy resins. may include
- the adhesive may include a photocurable adhesive, a hot melt adhesive, or a thermosetting adhesive, and any one of a photocuring method and a thermosetting method may be used.
- a sandwich panel can be manufactured by thermosetting a laminate including a skin layer, a core layer, and an adhesive. The thermal curing may be performed at 110 to 240° C. for approximately 1 minute to 1 hour, and curing may also be performed at room temperature for approximately 1 to 10 hours.
- the adhesive layer may be applied to a thickness of about 20 to 300 ⁇ m, but is not limited thereto.
- any one method selected from among a die coating method, a gravure coating method, a knife coating method, and a spray coating method may be used.
- electromagnetic shielding effectiveness is a measure of the ability of a material or material to block electromagnetic waves, and the electromagnetic shielding ability of the sandwich panel is experimentally measured as electromagnetic interference shielding effect (EMI SE).
- Silver is decibel [dB], based on ASTM D4935-10 (Standard test method for measuring the electromagnetic shielding effectiveness of Planar Materials) measurement standard, and is defined as in Equation 1 below.
- the sandwich panel for the electric vehicle battery pack protective cover has an electromagnetic shielding ability measured as electromagnetic interference shielding effect (EMI SE) of 81 to 120 dB, preferably 81 to 110 dB, more preferably 81 with respect to a frequency of 0.03 to 1.5 GHz. to 100 dB.
- EMI SE electromagnetic interference shielding effect
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention has a flame retardant performance.
- the sandwich panel of the present invention may include fibers using a thermoplastic resin such as PP and flame retardant fibers such as glass fibers in a core material.
- a thermoplastic resin such as PP
- flame retardant fibers such as glass fibers in a core material.
- the PP resin is melted at a high temperature and expanded in the thickness direction of the core material due to the elasticity of the glass fiber. After that, a non-combustible layer is formed by the glass fiber and the carbonized PP, and the propagation of the flame is suppressed by the heat insulating effect.
- the thickness of the panel is increased, so that structural rigidity is improved, and the occurrence of warpage can be suppressed.
- the flame-retardant performance of the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention can be known by checking the thickness expansion rate according to heating.
- the thickness expansion rate (after expansion) When measuring thickness/initial thickness), it may be 150% or more, 200% or more, 250% or more, or 300% or more, and there is no upper limit, but may be up to 1000%.
- the thickness expansion rate of the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention satisfies the above range, there is an effect that the propagation of the flame is suppressed by the thermal insulation effect.
- a combustion test may be performed.
- the combustion test when a flame is applied in the vertical direction of the product, the UL94 Vertical Burning Test may be performed to evaluate the combustion aspect and the degree of flame to the surroundings.
- the combustion time t1 of the specimen is measured, and when the combustion is finished after the first contacting, the combustion time t2 and sparking time t3 of the specimen are measured after contacting again for 10 seconds. do. Also, the combustion pattern (whether or not the cotton wool ignites due to dripping, and whether or not it burns up to the clamp (indicated by 125mm)) is recorded.
- the individual afterflame time (individual afterflame time, t1 or t2) is 10 seconds or less, and the total afterflame time for any condition set (t1 + t2 for 5 samples) is 50 seconds or less, Afterflame plus afterglow time for each Individual specimen after the second flame application, t2+t3) is less than 30 seconds, and Burning up to the holding clamp
- cotton ignition does not occur due to dripping, it is evaluated as V-0 grade, and in this case, it can be evaluated as having secured flame retardant performance that can be used as a sandwich panel for battery pack protection cover for electric vehicles. have.
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention is formed by sequentially stacking the skin layer 20, the core layer 10, and the skin layer 20, and the core layer 10 and the skin layer ( 20) by applying an adhesive layer (not shown) between them. After the above components are laminated, the curing and pressing steps may be performed, but the present invention is not limited thereto.
- the method for manufacturing a sandwich panel for a protective cover for an electric vehicle battery pack comprises the steps of: a) mixing a fiber containing a thermoplastic resin and a flame retardant fiber; b) manufacturing a core layer by performing carding on the mixed fibers, and then bonding the interface to each other through a needle punching process; c) forming an adhesive layer on at least one surface of the core layer; and d) forming a skin layer on the adhesive layer.
- Step a) is a step of mixing the fiber and the flame-retardant fiber containing the thermoplastic resin, and may be mixed after preparing the thermoplastic resin and the flame-retardant fiber in order to prepare a nonwoven fiber assembly.
- thermoplastic resin Specifically, 30 wt% or more, 35 wt% or more, 40 wt% or more, 50 wt% or more, or 70 wt% or less, 65 wt% or less, 60 wt% or less, or to contain 50% by weight or less of the thermoplastic resin,
- thermoplastic resin mixed in the production of the nonwoven fiber assembly is polyethylene, polypropylene, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyamide, polyphenylene sulfide, and combinations thereof. It may be selected from the group consisting of, preferably, polypropylene, polyethylene terephthalate, polyamide, and may be selected from the group consisting of combinations thereof.
- the flame-retardant fiber to be mixed at the time of manufacturing the non-woven fiber assembly may be selected from the group consisting of glass fiber, flame-retardant polyethylene terephthalate (flame-retardant PET), flame-retardant polypropylene (flame-retardant PP), and combinations thereof.
- it may be glass fiber.
- the glass fiber may be selected from the group consisting of C-Glass, E-Glass, S-Glass, Glass-Wool, and combinations thereof. , preferably E-glass (E-Glass).
- Step b) may be a step of manufacturing a core layer by performing carding on the mixed fibers and then bonding the interface to each other through a needle punching process.
- the carding process may be used without particular limitation as long as it is a method used in the industry.
- the number of punches per minute is 300 to 1000 times per minute for the mixed nonwoven fiber assembly, the movement speed of the nonwoven fiber assembly is 1 to 8 m/min, and the punching density is 100 to 500 punches/cm 2 ,
- the needle punching process may be performed, and more preferably, the number of punches per minute is 400 to 700 times per minute, the movement speed of the nonwoven fiber assembly is 1.5 to 6 m/min, and the punching density is 200 to 400 punches/cm 2 to proceed with the needle punching process.
- the number of punches per minute is less than 300, there is a problem in that the degree of binding between the nonwoven fiber aggregates is lowered, and if the number of punchings per minute is more than 1000 times, there is a problem in that the nonwoven fiber aggregate is broken.
- the moving speed of the nonwoven fiber aggregate is slower than 1 m/min, there is a problem in that the production speed is too slow, and if it is faster than 8 m/min, there is a problem in that it is not easy to control the punching density.
- the needle punching process may be performed two or more times. When the needle punching process is performed two or more times, it is possible to increase the binding force of the interlayer fibers, which is effective in preventing delamination.
- the physical bonding force by needle punching is improved, and physical properties such as tensile strength of the core layer are improved, and through this, the shear stiffness of the finally manufactured sandwich panel for battery pack protective cover for electric vehicle.
- the strength and the degree of deflection can be improved.
- the needle punching process of the above conditions is performed to produce a nonwoven fiber aggregate (nonwoven fabric) having a basis weight of 300 to 1800 gsm. have.
- the manufactured nonwoven fiber aggregate (nonwoven fabric) is mounted on a plurality of unwinding devices, and then moved to a hot press. At this time, after mounting 1 to 10 manufactured nonwoven fiber aggregates in a plurality of unwinding devices according to the number, it may be moved to a hot press for manufacturing the core layer.
- a plurality of nonwoven fiber aggregates are used by using a plurality of unwinding devices in this way, since the thickness of each nonwoven fiber aggregate becomes thin, the length of the nonwoven fiber aggregate wound around one unwinding device becomes longer. Therefore, since it is possible to reduce the number of times of use of the softener for connecting the nonwoven fiber aggregates continuously input during the continuous process, there is an advantage that the process can be simplified.
- a plurality of nonwoven fiber aggregates (nonwoven fabrics) moved by the hot press are heated and pressed under a temperature condition of 130 to 240° C. and a pressure condition of 1 to 10 MPa to prepare a core layer having a nonwoven fiber aggregate structure.
- the heating press is not particularly limited as long as it is commonly used in the industry, and as a specific example, a double belt press or the like may be used.
- the method for manufacturing a sandwich panel for a protective cover for an electric vehicle battery pack includes the steps of performing the needle punching process of step b), followed by preheating at a temperature of 130 to 240° C. for 1 to 10 minutes; may further include.
- Step c) may be a step of forming an adhesive layer on at least one surface of the core layer.
- the adhesive layer may include one selected from the group consisting of an olefin-based adhesive, a urethane-based adhesive, an acrylic adhesive, an epoxy-based adhesive, and combinations thereof.
- the olefin-based adhesive may be at least one selected from the group consisting of polyethylene, polypropylene, and amorphous polyalphaolefin adhesives.
- the urethane-based adhesive may be used without limitation as long as it is an adhesive including a urethane structure (-NH-CO-O-).
- the acrylic adhesive may include at least one of a polymethyl methacrylate adhesive, a hydroxyl group-containing polyacrylate adhesive, and a carboxy group-containing polyacrylate adhesive.
- the epoxy adhesive includes at least one of bisphenol-A type epoxy adhesive, bisphenol-F type epoxy adhesive, novolak epoxy adhesive, linear aliphatic epoxy resins, and cycloaliphatic epoxy resins. may include
- the adhesive may include a photocurable adhesive, a hot melt adhesive, or a thermosetting adhesive, and any one of a photocuring method and a thermosetting method may be used.
- a sandwich panel can be manufactured by thermosetting a laminate including a skin layer, a core layer, and an adhesive.
- the adhesive layer may be applied to a thickness of about 20 to 300 ⁇ m, but is not limited thereto.
- any one method selected from among a die coating method, a gravure coating method, a knife coating method, and a spray coating method may be used.
- Step d) may include forming a skin layer on the adhesive layer.
- the skin layer may be made of a metallic material, and preferably selected from the group consisting of aluminum, iron, stainless steel (SUS), magnesium, electrogalvanized steel sheet (EGI), hot-dip galvanized steel sheet (GI), and combinations thereof.
- the thickness of the skin layer may be 0.1 to 2 mm.
- the skin layer of the conventional sandwich panel had a problem in that the thickness of the skin layer had to be thick due to the low mechanical strength of the core material, thereby increasing the weight of the sandwich panel.
- the thickness of the skin layer is within the above range, but the mechanical properties are not rapidly reduced, and thus the weight can be reduced.
- any one of a photocuring method, a thermosetting method, and a thermocompression bonding method may be used.
- a laminate including a skin layer, a core layer, and an adhesive a sandwich panel for a protective cover for an electric vehicle battery pack can be finally manufactured.
- the thermal curing may be performed at 110 to 240° C. for approximately 1 minute to 1 hour, and curing may be performed at room temperature for approximately 1 to 10 hours.
- the electric vehicle battery pack protective cover according to the present invention includes a sandwich panel for the electric vehicle battery pack protective cover.
- the sandwich panel for a protective cover for an electric vehicle battery pack according to the present invention is lightweight and has excellent formability, including a nonwoven fiber aggregate structure, and has secured flame retardancy performance by introducing flame retardant fibers, excellent thermal insulation performance and metal
- it can be used as a protective cover for electric vehicle battery packs by replacing conventional metal composites or thermoplastic and thermosetting fiber-reinforced composites.
- Polypropylene (PP) fiber (GH new material, fineness of 15 denier) and glass fiber E-Glass (Owen Corning, SE4121) were mixed in a weight ratio of 70:30.
- the number of punches per minute is 500 times, the movement speed of the nonwoven fiber assembly is 2 m/min, and the punching density is 200 punches/cm 2
- the needle punching process is repeated. Physical recombination was formed between the nonwoven fiber aggregates.
- the non-woven fiber aggregate bonded by needle punching was preheated for 3 minutes after entering the preheating chamber having a chamber temperature of 210°C.
- the nonwoven fiber aggregate was transferred to a double belt press at a speed of 5 m/min.
- the heating temperature of the double belt press was 200° C. and the pressure was 5 Bar, and after heating/pressurizing for 10 minutes, cold pressing was performed at 25° C. for 6 minutes at 5 bar to prepare a 1.2 mm core layer.
- a polyolefin adhesive (Samsung Gratech, KS010C) was applied to a thickness of 50 ⁇ m to form an adhesive layer, and then an aluminum plate (Namsun Aluminum, 5052H32) having a thickness of 0.4 mm was laminated on the adhesive layer, followed by lamination After heat lamination was performed at 130 ° C. for 6 minutes at 5 bar, the resultant was cooled to 5 bar at 25 ° C. for 4 minutes to finally prepare a 2.0 mm thick sandwich panel for an electric vehicle battery pack protective cover.
- a sandwich panel was prepared in the same manner as in Example 1, except that polypropylene (PP) fiber (GH new material, fineness 15 denier) and glass fiber E-Glass (Owen Corning, SE4121) were mixed in a weight ratio of 50:50. prepared.
- a sandwich panel was prepared in the same manner as in Example 1, except that polypropylene (PP) fiber (GH new material, fineness 15 denier) and glass fiber E-Glass (Owen Corning, SE4121) were mixed in a weight ratio of 40:60. prepared.
- a sandwich panel was prepared in the same manner as in Example 1, except that polypropylene (PP) fiber (GH new material, fineness 15 denier) and glass fiber E-Glass (Owen Corning, SE4121) were mixed in a weight ratio of 30:70. prepared.
- a sandwich panel for a protective cover for an electric vehicle battery pack was manufactured in the same manner as in Example 1, except for coating the surface of the prepared core layer by spraying a phosphorus-based flame retardant with a spray gun.
- a sandwich panel was manufactured in the same manner as in Example 1, except that polypropylene (PP) fibers (GH new material, fineness of 15 denier) and PET fibers (Ocean, Super-A) were mixed in a weight ratio of 40:60.
- PP polypropylene
- GH new material fineness of 15 denier
- PET fibers Olean, Super-A
- Example 2 Example 3
- Example 4 Example 5 Comparative Example 1 Material unit weight (kg/m2) 3.0 3.0 3.0 3.0 3.2 3.0 Part weight (kg) 7.6 7.6 7.6 7.6 8.1 7.6
- Example 2 Example 3
- Example 4 Example 5 Comparative Example 1
- Maximum load (N) 107 148 141 70 160 121 Deflection (mm) 1.8 1.0 1.2 8.0 1.0 1.5
- the glass fiber content had a maximum stiffness value of 40 to 60 wt%.
- the thickness and thickness expansion rate after expansion after holding for 5 minutes in a 200 degree preheated oven was measured and compared in Table 4 below.
- a photograph was taken after the thickness expansion rate test of Example 3 and shown in FIG. 2 .
- the thickness expansion rate was calculated as (thickness after expansion/initial thickness).
- Example 2 Example 3
- Example 4 Example 5 Comparative Example 1 Thickness after expansion (mm) 3.6 4.5 6.0 6.1 5.2 1.8 Thickness Expansion (%) 180 225 300 305 265 90
- the specimen size was cut to 125 mm in width x 13 mm in length x 2 mm in height, and the flammability was improved according to the UL94 vertical burning test. It was measured and compared in Table 5 below. Specifically, individual combustion time, total combustion time for each pretreatment condition, combustion and spark formation after secondary contacting, combustion up to clamp (125mm mark), and whether or not the cotton wool ignited by dripping were measured, and the grades in Table 5 below was set according to the criteria in Table 6 below.
- Example 2 Example 3
- Example 4 Example 5 Comparative Example 1 Individual burn time (sec) 125 10 0 19 0 140 Total burn time (seconds) 624 22 0 81 0 624 Sparkling time (seconds) 125 0 0 19 0 140 125mm Combustion Yes No No No No Yes cotton wool ignition Yes No No No No No Yes Rating out of grade V-0 V-0 V-1 V-0 out of grade
- Example 2 Example 3
- Example 4 Example 5 Comparative Example 1 THR1) (600 seconds, MJ/m 2 ) 16 1.5 0.8 0.3 0.2 24 Peak HRR2) (time over 200 kW/m 2 in seconds) 0 0 0 0 0 0 12 Rating Flame Retardant (Class 3) Semi-Non-flammable (Level 2) Semi-nonflammable (2nd grade) Semi-Non-flammable (Level 2) Semi-Non-flammable (Level 2) Flame Retardant (Class 3)
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
소재 단위 중량 (kg/m2) | 3.0 | 3.0 | 3.0 | 3.0 | 3.2 | 3.0 |
부품 중량 (kg) | 7.6 | 7.6 | 7.6 | 7.6 | 8.1 | 7.6 |
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
최대 하중 (N) | 107 | 148 | 141 | 70 | 160 | 121 |
처짐량 (mm) | 1.8 | 1.0 | 1.2 | 8.0 | 1.0 | 1.5 |
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
열전도율 (W/m·K) | 0.049 | 0.047 | 0.044 | 0.043 | 0.050 | 0.055 |
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
팽창 후 두께 (mm) | 3.6 | 4.5 | 6.0 | 6.1 | 5.2 | 1.8 |
두께 팽창률(%) | 180 | 225 | 300 | 305 | 265 | 90 |
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
개별 연소 시간 (초) | 125 | 10 | 0 | 19 | 0 | 140 |
전체 연소 시간 (초) | 624 | 22 | 0 | 81 | 0 | 624 |
불똥 맺힌 시간 (초) | 125 | 0 | 0 | 19 | 0 | 140 |
125mm 연소 | Yes | No | No | No | No | Yes |
탈지면 발화 | Yes | No | No | No | No | Yes |
등급 | 등급 외 | V-0 | V-0 | V-1 | V-0 | 등급 외 |
구분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 | 실시예 5 | 비교예 1 |
THR1) (600초, MJ/m2) |
16 | 1.5 | 0.8 | 0.3 | 0.2 | 24 |
Peak HRR2)(200kW/m2 초과 시간, 초) | 0 | 0 | 0 | 0 | 0 | 12 |
등급 | 난연 (3등급) | 준불연 (2등급) | 준불연(2등급) | 준불연 (2등급) | 준불연 (2등급) | 난연 (3등급) |
Claims (14)
- 부직 섬유 집합체 구조인 코어층;상기 코어층의 일면 이상에 적층된 스킨층; 및상기 코어층과 스킨층을 접착하는 접착층;을 포함하고,상기 코어층은 열가소성 수지 및 난연성 섬유를 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 코어층은 코어층 총 중량 기준30 중량% 이상의 난연성 섬유를 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 코어층은 코어층 총 중량 기준50 중량% 이상의 난연성 섬유를 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 코어층은 코어층 총 중량 기준60 중량% 이상의 난연성 섬유를 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 코어층은 코어층 총 중량 기준70 중량% 이하의 난연성 섬유를 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 코어층은 인계 난연제를 더 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 열가소성 수지는 폴리에틸렌, 폴리프로필렌, 폴리에틸렌테레프탈레이트, 폴리트리메틸렌테레프탈레이트, 폴리부틸렌테레프탈레이트, 폴리에틸렌나프탈레이트, 폴리아미드, 폴리페닐렌설파이드 및 이들의 조합으로 이루어진 군으로부터 선택된 것인, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 난연성 섬유는 유리 섬유(Glass Fiber), 난연 폴리에틸렌테레프탈레이트(난연 PET), 난연 폴리프로필렌(난연 PP) 및 이들의 조합으로 이루어진 군으로부터 선택된 것인, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제8항에 있어서,상기 유리 섬유는 C-글라스(C-Glass), E-글라스(E-Glass), S-글라스(S-Glass), 글라스울(Glass-Wool) 및 이들의 조합으로 이루어진 군으로부터 선택된 것인, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 스킨층은 알루미늄, 철, 스테인레스강(SUS), 마그네슘, 전기아연도금강판(EGI), 용융아연도금강판(GI) 및 이들의 조합으로 이루어진 군으로부터 선택된 것인, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 접착층은 올레핀계 접착제, 우레탄계 접착제, 아크릴계 접착제, 에폭시계 접착제 및 이들의 조합으로 이루어진 군으로부터 선택된 것을 포함하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- 제1항에 있어서,상기 샌드위치 패널은 200℃ 오븐에서 5분 유지 후의 두께 팽창률(팽창 후 두께/초기 두께)이 150% 이상인 것을 특징으로 하는, 전기자동차 배터리팩 보호커버용 샌드위치 패널.
- a) 열가소성 수지를 포함하는 섬유 및 난연성 섬유를 혼합하는 단계;b) 상기 혼합된 섬유에 카딩을 진행한 후, 그 계면을 니들펀칭 공정으로 상호 접합시켜 코어층을 제조하는 단계;c) 상기 코어층 일면 이상에 접착층을 형성하는 단계; 및d) 상기 접착층 상에 스킨층을 형성하는 단계;를 포함하는, 제1항의 전기자동차 배터리팩 보호커버용 샌드위치 패널의 제조방법.
- 제1항 내지 제12항 중 어느 한 항의 전기자동차 배터리팩 보호커버용 샌드위치 패널을 포함하는, 전기자동차 배터리팩 보호커버.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21895098.8A EP4250451A1 (en) | 2020-11-17 | 2021-11-17 | Sandwich panel for protective cover of battery pack for electric vehicle, manufacturing method therefor, and protective cover of electric vehicle battery pack comprising same |
CN202180090916.9A CN117203835A (zh) | 2020-11-17 | 2021-11-17 | 电动车辆的电池组的保护盖的夹层板、该夹层板的制造方法以及包括该夹层板的电动车辆的电池组的保护盖 |
US18/037,351 US20230405968A1 (en) | 2020-11-17 | 2021-11-17 | Sandwich panel for protective cover of battery pack for electric vehicle, manufacturing method therefor, and protective cover of electric vehicle battery pack comprising same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2020-0153881 | 2020-11-17 | ||
KR20200153881 | 2020-11-17 | ||
KR1020210157031A KR20220067513A (ko) | 2020-11-17 | 2021-11-15 | 전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 |
KR10-2021-0157031 | 2021-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022108330A1 true WO2022108330A1 (ko) | 2022-05-27 |
Family
ID=81709375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2021/016890 WO2022108330A1 (ko) | 2020-11-17 | 2021-11-17 | 전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20230405968A1 (ko) |
EP (1) | EP4250451A1 (ko) |
WO (1) | WO2022108330A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4333177A3 (de) * | 2022-09-01 | 2024-03-27 | ThyssenKrupp Steel Europe AG | Batteriekastendeckel aus thermisch isolierendem stahlsandwichmaterial |
EP4353471A1 (de) * | 2022-10-11 | 2024-04-17 | Cuylits Holding GmbH | Brandschutzvorrichtung mit verbundsystem, verbundsystem und batterie-pack mit brandschutzvorrichtung |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170112571A (ko) * | 2016-03-31 | 2017-10-12 | 도레이케미칼 주식회사 | 흡음성, 수분흡수성 및 보온성이 우수한 섬유집합체, 이를 포함하는 부직포 및 이의 제조방법 |
KR20170140111A (ko) | 2016-06-10 | 2017-12-20 | (주)엘지하우시스 | 샌드위치 패널 및 그의 제조방법 |
KR20190104791A (ko) * | 2018-03-02 | 2019-09-11 | (주)엘지하우시스 | 샌드위치 패널 및 그의 제조방법 |
KR20200029735A (ko) * | 2018-09-11 | 2020-03-19 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
KR20200029736A (ko) * | 2018-09-11 | 2020-03-19 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
KR20200043682A (ko) * | 2018-10-18 | 2020-04-28 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
-
2021
- 2021-11-17 US US18/037,351 patent/US20230405968A1/en active Pending
- 2021-11-17 EP EP21895098.8A patent/EP4250451A1/en active Pending
- 2021-11-17 WO PCT/KR2021/016890 patent/WO2022108330A1/ko active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170112571A (ko) * | 2016-03-31 | 2017-10-12 | 도레이케미칼 주식회사 | 흡음성, 수분흡수성 및 보온성이 우수한 섬유집합체, 이를 포함하는 부직포 및 이의 제조방법 |
KR20170140111A (ko) | 2016-06-10 | 2017-12-20 | (주)엘지하우시스 | 샌드위치 패널 및 그의 제조방법 |
KR20190104791A (ko) * | 2018-03-02 | 2019-09-11 | (주)엘지하우시스 | 샌드위치 패널 및 그의 제조방법 |
KR20200029735A (ko) * | 2018-09-11 | 2020-03-19 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
KR20200029736A (ko) * | 2018-09-11 | 2020-03-19 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
KR20200043682A (ko) * | 2018-10-18 | 2020-04-28 | (주)엘지하우시스 | 배터리팩 케이스용 복합소재 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4333177A3 (de) * | 2022-09-01 | 2024-03-27 | ThyssenKrupp Steel Europe AG | Batteriekastendeckel aus thermisch isolierendem stahlsandwichmaterial |
EP4353471A1 (de) * | 2022-10-11 | 2024-04-17 | Cuylits Holding GmbH | Brandschutzvorrichtung mit verbundsystem, verbundsystem und batterie-pack mit brandschutzvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
EP4250451A1 (en) | 2023-09-27 |
US20230405968A1 (en) | 2023-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2022108330A1 (ko) | 전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 | |
WO2018021623A1 (en) | Complex sheet for wireless charging and method for fabricating the same | |
WO2017200190A1 (ko) | 샌드위치 패널 및 그 제조 방법 | |
WO2011108856A9 (ko) | 닫힌셀의 팽창 퍼라이트를 이용한 보온재 | |
WO2015147449A1 (ko) | 전자기파 차폐시트, 및 이의 제조방법 | |
WO2017003146A1 (ko) | 차량용 언더바디 커버 및 이를 제조하는 방법 | |
WO2019035697A1 (ko) | Emi 차폐필름 | |
WO2012047012A2 (ko) | 열경화성 수지를 이용한 팽창 퍼라이트 단열재, 이의 제조방법 및 이를 이용한 제품 | |
US11607861B2 (en) | Materials for fire protection | |
WO2017069558A1 (ko) | 다공성 단일 수지 섬유 복합재 및 다공성 단일 수지 섬유 복합재를 제조하는 방법 | |
WO2010114276A2 (ko) | 아라미드 복합재 및 그 제조방법 | |
WO2018135916A1 (ko) | 충격흡수용 복합시트 | |
WO2017051963A1 (ko) | 탄소섬유를 이용한 탄소섬유전극 및 이의 제조방법 | |
WO2018048276A1 (ko) | 다공성 섬유강화 복합재 및 이를 제조하는 방법 | |
WO2022265394A1 (ko) | 고분자 발포체 및 폴리이미드를 포함하는 완충 복합 시트 및 이의 제조방법 | |
KR20220067513A (ko) | 전기자동차 배터리팩 보호커버용 샌드위치 패널, 이의 제조방법 및 이를 포함하는 전기자동차 배터리팩 보호커버 | |
WO2021075817A1 (ko) | 성형체, 이를 사용하는 샌드위치 패널, 성형체의 제조방법 및 샌드위치 패널의 제조방법 | |
WO2018221987A1 (ko) | 에어로겔 시트 및 이를 포함하는 단열 재료 | |
JPH06123141A (ja) | 耐火パネル | |
WO2017213478A1 (ko) | 샌드위치 패널 및 그의 제조방법 | |
WO2018056554A1 (ko) | 샌드위치 패널용 심재, 샌드위치 패널 및 샌드위치 패널의 제조방법 | |
CN117203835A (zh) | 电动车辆的电池组的保护盖的夹层板、该夹层板的制造方法以及包括该夹层板的电动车辆的电池组的保护盖 | |
WO2021112535A1 (ko) | 성형체, 이를 사용하는 샌드위치 패널 및 이의 제조방법 | |
WO2017213479A1 (ko) | 성형체 및 그의 제조방법 | |
US20240117153A1 (en) | Sandwich panel for automobile, manufacturing method thereof, and upper cover for automobile battery pack comprising same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21895098 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18037351 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021895098 Country of ref document: EP Effective date: 20230619 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180090916.9 Country of ref document: CN |