CN113773578A - Lithium ion battery shell - Google Patents
Lithium ion battery shell Download PDFInfo
- Publication number
- CN113773578A CN113773578A CN202111042670.6A CN202111042670A CN113773578A CN 113773578 A CN113773578 A CN 113773578A CN 202111042670 A CN202111042670 A CN 202111042670A CN 113773578 A CN113773578 A CN 113773578A
- Authority
- CN
- China
- Prior art keywords
- parts
- antioxidant
- lithium ion
- ion battery
- modified
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims abstract description 68
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 60
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 43
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 43
- -1 polypropylene Polymers 0.000 claims abstract description 34
- 239000004743 Polypropylene Substances 0.000 claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 22
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 21
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims abstract description 20
- WNVSWLWUPQMHQK-UHFFFAOYSA-N 1,2,2,6,6-pentamethyl-4-prop-2-enoxypiperidine Chemical compound CN1C(C)(C)CC(OCC=C)CC1(C)C WNVSWLWUPQMHQK-UHFFFAOYSA-N 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000006185 dispersion Substances 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 13
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 13
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000416 bismuth oxide Inorganic materials 0.000 claims abstract description 11
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 10
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 10
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 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 abstract description 9
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 9
- 239000002667 nucleating agent Substances 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims description 20
- 239000003377 acid catalyst Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- YWEWWNPYDDHZDI-JJKKTNRVSA-N (1r)-1-[(4r,4ar,8as)-2,6-bis(3,4-dimethylphenyl)-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical group C1=C(C)C(C)=CC=C1C1O[C@H]2[C@@H]([C@H](O)CO)OC(C=3C=C(C)C(C)=CC=3)O[C@H]2CO1 YWEWWNPYDDHZDI-JJKKTNRVSA-N 0.000 claims description 8
- 239000005543 nano-size silicon particle Substances 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 7
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- LKALLEFLBKHPTQ-UHFFFAOYSA-N 2,6-bis[(3-tert-butyl-2-hydroxy-5-methylphenyl)methyl]-4-methylphenol Chemical compound OC=1C(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=CC(C)=CC=1CC1=CC(C)=CC(C(C)(C)C)=C1O LKALLEFLBKHPTQ-UHFFFAOYSA-N 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007171 acid catalysis Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910001593 boehmite Inorganic materials 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 125000005936 piperidyl group Chemical group 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 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 description 1
- 241000446313 Lamella Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a lithium ion battery shell which is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials: polypropylene, glass fiber, modified graphene, montmorillonite, nano-silica, hydrotalcite, ammonium polyphosphate, dipentaerythritol, bismuth oxide, an antioxidant and a nucleating agent; the preparation process of the modified graphene comprises the following steps: heating the graphene oxide water dispersion, an aluminum nitrate water solution and a sodium hydroxide water solution to 80-170 ℃ by microwave and reacting for 5-8min to obtain a material A; under the conditions of nitrogen protection and chloroplatinic acid catalysis, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine reacts with methyldimethoxysilane to obtain a material B; placing the material A in absolute ethyl alcohol to be uniformly dispersed, adding the material B and hexadecyl trimethoxy silane, heating to 55-60 ℃, reacting for 30-60min, adding an antioxidant 565, stirring for 30-120min, filtering and drying.
Description
Technical Field
The invention relates to the technical field of battery materials, in particular to a lithium ion battery shell.
Background
The lithium ion battery has the characteristics of high energy density, small volume, light weight, long service life, wide service temperature range and the like, and is widely applied to the aspects of electric bicycles, electric tools, electric automobiles and the like at present.
The manufacturing material of present lithium ion battery shell mainly has the aluminum product, steel and plastics are three types, it arouses the battery explosion because the short circuit appears very easily when lithium ion battery uses not properly, thermal runaway etc. and wherein steel casing, the aluminium hull battery piece is very easily wounded after the explosion, and plastic housing has the characteristics that ductility is good and is difficult to explode, can reduce the danger that the explosion hurt people to a certain extent, but its main material of current plastic battery shell is polypropylene, its fire resistance is not good enough, meet the external environment and participate in the burning when catching fire, the conflagration has been encouraged, simultaneously its chain has a large amount of unstable tertiary carbon atom, receive the influence of external factors such as heat, oxygen, light, water and can take place ageing, its performance can constantly reduce, life shortens, and then influence its use value.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a lithium ion battery shell which is good in flame retardance and aging resistance, excellent in mechanical property and long in service life.
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 58-65 parts of polypropylene, 12-25 parts of glass fiber, 6-11 parts of modified graphene, 3-8 parts of montmorillonite, 2-9 parts of nano silicon dioxide, 1-2 parts of hydrotalcite, 10-16 parts of ammonium polyphosphate, 1-4.5 parts of dipentaerythritol, 2-6 parts of bismuth oxide, 0.2-0.8 part of antioxidant and 0.1-0.5 part of nucleating agent;
the preparation process of the modified graphene comprises the following steps: adding the graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, heating to 80-170 ℃, reacting for 5-8min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, mixing 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine with chloroplatinic acid catalyst, heating to 60-65 ℃ for activation for 10-20min, adding methyldimethoxysilane, keeping reflux reaction for 3-5h, and distilling and rectifying to obtain a material B; and (2) placing the material A in absolute ethyl alcohol to be uniformly dispersed, adding the material B and hexadecyl trimethoxy silane, heating to 55-60 ℃, reacting for 30-60min, adding an antioxidant 565, stirring for 30-120min, filtering, and drying to obtain the modified graphene.
Preferably, the glass fiber has a diameter of 10 to 12 μm and a length of 8 to 20 mm.
Preferably, the antioxidant is one or a mixture of more of antioxidant 300, antioxidant 626, antioxidant 80 and antioxidant 1010.
Preferably, the nucleating agent is 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol.
Preferably, in the preparation process of the modified graphene, the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 150-280: 80-150.
Preferably, in the preparation process of the modified graphene, the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8-10: 3-5.
Preferably, in the preparation process of the modified graphene, the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 3-8: 1-3: 2-9.
Preferably, the raw materials of the modified polypropylene composite material also comprise 0.2-4 parts by weight of other auxiliary agents; the other auxiliary agent is one or a mixture of more of a compatilizer, a lubricant, a coupling agent and a toughening agent.
Preferably, the compatibilizer is maleic anhydride grafted polypropylene; the lubricant is ethylene bis stearamide; the coupling agent is a silane coupling agent KH-560; the toughening agent is an ethylene-octene copolymer.
Preferably, the chloroplatinic acid catalyst can be obtained by mixing chloroplatinic acid with isopropanol, neutralizing with sodium bicarbonate, and drying with calcium oxide.
Preferably, in the preparation process of the modified graphene, unreacted methyldimethoxysilane is distilled off, rectification under reduced pressure is carried out, and fractions at 140 +/-2 ℃ under the pressure of 2mmHg are collected to obtain the material B.
The lithium ion battery shell is prepared from the specific modified polypropylene composite material, has the characteristics of good flame retardance and excellent aging resistance, and is long in service life; specifically, in the raw materials of the modified polypropylene composite material, in the preparation process of modified graphene, firstly, graphene oxide aqueous dispersion, aluminum nitrate aqueous solution and sodium hydroxide aqueous solution are used as raw materials, reaction conditions are controlled, a material A is obtained, the material A is graphene on which boehmite is uniformly attached, then the material A is modified by a coupling agent containing piperidyl and hexadecyl trimethoxy silane, the surface property of the material A is improved by utilizing the modification capability of the coupling agent, an antioxidant 565 is added, the antioxidant is loaded on the surface of the material A, the obtained modified graphene is added into a system, the modified graphene is uniformly dispersed in the system, the binding force with a matrix is strong, and on one hand, the modified graphene is combined with ammonium polyphosphate, dipentaerythritol, bismuth oxideMontmorillonite and hydrotalcite have synergistic effect, so that polyphosphoric acid and pyrophosphate generated by decomposing ammonium polyphosphate are blocked by lamella, conditions for catalyzing dipentaerythritol to form ester and forming stable carbon layer are provided, and stable phosphate is generated to inhibit P2O5The composite material is volatilized to generate more stable Si-O-P bonds and P-O-Bi bonds, so that the carbon formation is promoted, the stability of a carbon layer framework is enhanced, and the composite material is endowed with excellent flame retardance.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 65 parts of polypropylene, 12 parts of glass fiber, 11 parts of modified graphene, 3 parts of montmorillonite, 2 parts of nano silicon dioxide, 1.2 parts of hydrotalcite, 16 parts of ammonium polyphosphate, 2 parts of dipentaerythritol, 6 parts of bismuth oxide, 3000.2 parts of antioxidant, 0.5 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol, 0.1 part of ethylene bis stearamide and KH-5600.1 parts of silane coupling agent;
wherein the diameter of the glass fiber is 10 μm, and the length is 15 mm;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 150: 150, heating to 100 ℃, reacting for 8min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, heated to 60 ℃ for activation for 20min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8: 3.9, keeping reflux reaction for 3 hours, and obtaining a material B after distillation and rectification; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 60 ℃, reacting for 30min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 8: 1: and 9, stirring for 90min, filtering and drying to obtain the modified graphene.
Example 2
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 58 parts of polypropylene, 25 parts of glass fiber, 6 parts of modified graphene, 6 parts of montmorillonite, 7 parts of nano silicon dioxide, 1 part of hydrotalcite, 12 parts of ammonium polyphosphate, 1 part of dipentaerythritol, 2 parts of bismuth oxide, 6260.6 parts of antioxidant, 800.2 parts of antioxidant, 0.1 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol and 1 part of maleic anhydride grafted polypropylene;
wherein the diameter of the glass fiber is 11 μm, and the length is 15 mm;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 280: 80, heating to 170 ℃, reacting for 5min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, heated to 65 ℃ for activation for 10min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 10: 5, keeping reflux reaction for 4 hours, and obtaining a material B after distillation and rectification; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 58 ℃, reacting for 40min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 3: 3: and 2, stirring for 120min, filtering and drying to obtain the modified graphene.
Example 3
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 62 parts of polypropylene, 18 parts of glass fiber, 8 parts of modified graphene, 8 parts of montmorillonite, 9 parts of nano silicon dioxide, 2 parts of hydrotalcite, 10 parts of ammonium polyphosphate, 4.5 parts of dipentaerythritol, 5 parts of bismuth oxide, 10100.4 parts of antioxidant, 0.1 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol, 1 part of maleic anhydride grafted polypropylene, 1 part of ethylene bis stearamide, 1 part of silane coupling agent KH-5601 parts, and 1 part of ethylene octene copolymer;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 250: 110, heating to 85 ℃, reacting for 7min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, the temperature is raised to 62 ℃, the activation is carried out for 18min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 9: 5, keeping reflux reaction for 5 hours, and distilling and rectifying to obtain a material B; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 55 ℃, reacting for 60min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 7: 2: and 5, stirring for 30min, filtering and drying to obtain the modified graphene.
Example 4
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 60 parts of polypropylene, 21 parts of glass fiber, 7 parts of modified graphene, 4 parts of montmorillonite, 3 parts of nano silicon dioxide, 1.3 parts of hydrotalcite, 15 parts of ammonium polyphosphate, 1.8 parts of dipentaerythritol, 3 parts of bismuth oxide, 3000.4 parts of antioxidant, 6260.3 parts of antioxidant, 0.2 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol, 2 parts of maleic anhydride grafted polypropylene, 0.5 part of ethylene bis stearamide and KH-5600.5 parts of silane coupling agent;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 210: 130, heating to 95 ℃, reacting for 6min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, heated to 64 ℃ for activation for 15min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 9: 4, keeping reflux reaction for 3.5 hours, and obtaining a material B after distillation and rectification; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 57 ℃, reacting for 45min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 4: 3: and 6, stirring for 60min, filtering and drying to obtain the modified graphene.
Example 5
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 63 parts of polypropylene, 14 parts of glass fiber, 10 parts of modified graphene, 5 parts of montmorillonite, 8 parts of nano silicon dioxide, 1.2 parts of hydrotalcite, 15 parts of ammonium polyphosphate, 1.8 parts of dipentaerythritol, 5 parts of bismuth oxide, 10100.4 parts of antioxidant, 0.4 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol, 1.8 parts of ethylene bis stearamide and 1 part of ethylene octene copolymer;
wherein the diameter of the glass fiber is 12 μm, and the length is 8 mm;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 170: 130, heating to 158 ℃, reacting for 7min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, the temperature is raised to 62 ℃, the activation is carried out for 18min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8: 4, keeping reflux reaction for 3.5 hours, and obtaining a material B after distillation and rectification; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 58 ℃, reacting for 45min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 4: 1: and 7, stirring for 100min, filtering and drying to obtain the modified graphene.
Example 6
The lithium ion battery shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 59 parts of polypropylene, 21 parts of glass fiber, 7 parts of modified graphene, 6 parts of montmorillonite, 5 parts of nano silicon dioxide, 1.8 parts of hydrotalcite, 11 parts of ammonium polyphosphate, 3 parts of dipentaerythritol, 3.2 parts of bismuth oxide, 3000.3 parts of antioxidant, 800.2 parts of antioxidant, 10100.2 parts of antioxidant, 0.3 part of 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol, 1.2 parts of maleic anhydride grafted polypropylene, 0.2 part of ethylene bis-stearamide, KH-5600.8 parts of silane coupling agent and 1 part of ethylene octene copolymer;
wherein the diameter of the glass fiber is 10 μm, and the length is 10 mm;
the preparation process of the modified graphene comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 230: 90, heating to 100 ℃, reacting for 6min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, heated to 64 ℃ for activation for 14min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8: 5, keeping reflux reaction for 4.5 hours, and distilling and rectifying to obtain a material B; placing a material A in absolute ethyl alcohol for uniform dispersion, adding a material B and hexadecyl trimethoxy silane, heating to 57 ℃, reacting for 60min, and adding an antioxidant 565, wherein the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 6: 2: and 5, stirring for 60min, filtering and drying to obtain the modified graphene.
Comparative example 1
The only difference from example 6 is that the raw material does not contain modified graphene.
Comparative example 2
The only difference from example 6 is that the starting materials do not contain ammonium polyphosphate, dipentaerythritol and bismuth oxide.
Comparative example 3
The only difference from example 6 is that the raw material contained no bismuth oxide.
Comparative example 4
The only difference from example 6 is that the starting materials do not contain ammonium polyphosphate and dipentaerythritol.
Comparative example 5
The only difference from example 6 is that the raw materials contained unmodified commercially available graphene, but did not contain the modified graphene of the present invention.
Comparative example 6
The difference from example 6 is only that the preparation process of the modified graphene is not modified by using a coupling agent containing piperidyl, namely the preparation process comprises the following steps: adding a graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, wherein the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 230: 90, heating to 100 ℃, reacting for 6min, filtering, washing and drying to obtain a material A; placing a material A in absolute ethyl alcohol for uniform dispersion, adding hexadecyl trimethoxy silane, heating to 57 ℃, reacting for 60min, and adding an antioxidant 565, wherein the weight ratio of the material A to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 2: and 5, stirring for 60min, filtering and drying to obtain the modified graphene.
Comparative example 7
The difference from example 6 is only that the preparation process of the modified graphene does not include the preparation process of the material a, namely the following steps are included: under the protection of nitrogen, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine is mixed with chloroplatinic acid catalyst, heated to 64 ℃ for activation for 14min, and methyldimethoxysilane is added, wherein the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8: 5, keeping reflux reaction for 4.5 hours, and distilling and rectifying to obtain a material B; placing graphene oxide in absolute ethyl alcohol to be uniformly dispersed, adding a material B and hexadecyl trimethoxy silane, heating to 57 ℃, reacting for 60min, and adding an antioxidant 565, wherein the weight ratio of the graphene oxide to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 6: 2: and 5, stirring for 60min, filtering and drying to obtain the modified graphene.
Comparative example 8
The difference from the example 6 is only that the preparation process of the modified graphene comprises the following steps: uniformly mixing graphene oxide, boehmite, 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine, methyldimethoxysilane, hexadecyltrimethoxysilane and an antioxidant 565.
The performance of the modified polypropylene composite material of example 6 and comparative examples 1-8 was tested, wherein the tensile strength was tested according to GB/T1040.3-2006 standard, the notched Izod impact strength was tested according to GB/T1843.2-1996, and the flame retardant performance (1.6mm) was tested according to UL94 standard; the resulting battery casing was subjected to external flame testing according to 7.10 of GB/T31467.3-2015, and the flame after-flame time was recorded after the source of fire was removed, with the results shown in the table below:
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A lithium ion battery shell is characterized in that the shell is prepared from a modified polypropylene composite material; the modified polypropylene composite material comprises the following raw materials in parts by weight: 58-65 parts of polypropylene, 12-25 parts of glass fiber, 6-11 parts of modified graphene, 3-8 parts of montmorillonite, 2-9 parts of nano silicon dioxide, 1-2 parts of hydrotalcite, 10-16 parts of ammonium polyphosphate, 1-4.5 parts of dipentaerythritol, 2-6 parts of bismuth oxide, 0.2-0.8 part of antioxidant and 0.1-0.5 part of nucleating agent;
the preparation process of the modified graphene comprises the following steps: adding the graphene oxide aqueous dispersion, an aluminum nitrate aqueous solution and a sodium hydroxide aqueous solution into a microwave reactor, heating to 80-170 ℃, reacting for 5-8min, filtering, washing and drying to obtain a material A; under the protection of nitrogen, mixing 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine with chloroplatinic acid catalyst, heating to 60-65 ℃ for activation for 10-20min, adding methyldimethoxysilane, keeping reflux reaction for 3-5h, and distilling and rectifying to obtain a material B; and (2) placing the material A in absolute ethyl alcohol to be uniformly dispersed, adding the material B and hexadecyl trimethoxy silane, heating to 55-60 ℃, reacting for 30-60min, adding an antioxidant 565, stirring for 30-120min, filtering, and drying to obtain the modified graphene.
2. The lithium ion battery case of claim 1, wherein the glass fibers have a diameter of 10-12 μm and a length of 8-20 mm.
3. The lithium ion battery housing of claim 1, wherein the antioxidant is one or more of antioxidant 300, antioxidant 626, antioxidant 80, and antioxidant 1010.
4. The lithium ion battery case of claim 1, wherein the nucleating agent is 1,3:2, 4-bis (3, 4-dimethylbenzylidene) -D-sorbitol.
5. The lithium ion battery shell according to claim 1, wherein during the preparation of the modified graphene, the weight ratio of the graphene oxide to the aluminum nitrate to the sodium hydroxide is 1: 150-280: 80-150.
6. The lithium ion battery shell according to claim 1, wherein in the preparation process of the modified graphene, the weight ratio of the 4-allyloxy-1, 2,2,6, 6-pentamethylpiperidine to the methyldimethoxysilane is 8-10: 3-5.
7. The lithium ion battery shell according to claim 1, wherein in the preparation process of the modified graphene, the weight ratio of the material A to the material B to the hexadecyl trimethoxy silane to the antioxidant 565 is 100: 3-8: 1-3: 2-9.
8. The lithium ion battery shell according to any one of claims 1 to 7, wherein the raw materials of the modified polypropylene composite material further comprise 0.2 to 4 parts by weight of other auxiliary agents; the other auxiliary agent is one or a mixture of more of a compatilizer, a lubricant, a coupling agent and a toughening agent.
9. The lithium ion battery housing of claim 8, wherein the compatibilizer is maleic anhydride grafted polypropylene; the lubricant is ethylene bis stearamide; the coupling agent is a silane coupling agent KH-560; the toughening agent is an ethylene-octene copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042670.6A CN113773578A (en) | 2021-09-07 | 2021-09-07 | Lithium ion battery shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042670.6A CN113773578A (en) | 2021-09-07 | 2021-09-07 | Lithium ion battery shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113773578A true CN113773578A (en) | 2021-12-10 |
Family
ID=78841437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111042670.6A Pending CN113773578A (en) | 2021-09-07 | 2021-09-07 | Lithium ion battery shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113773578A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384695A (en) * | 2011-02-25 | 2013-11-06 | 沙特基础创新塑料Ip私人有限责任公司 | Thermally conductive and electrically insulative polymer compositions containing a thermally insulative filler and uses thereof |
| CN104789175A (en) * | 2015-03-06 | 2015-07-22 | 国家纳米科学中心 | Insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection |
| CN109054175A (en) * | 2018-07-13 | 2018-12-21 | 安徽义林塑业有限公司 | A kind of polypropylene packaging material containing modified graphene oxide |
-
2021
- 2021-09-07 CN CN202111042670.6A patent/CN113773578A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384695A (en) * | 2011-02-25 | 2013-11-06 | 沙特基础创新塑料Ip私人有限责任公司 | Thermally conductive and electrically insulative polymer compositions containing a thermally insulative filler and uses thereof |
| CN104789175A (en) * | 2015-03-06 | 2015-07-22 | 国家纳米科学中心 | Insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection |
| CN109054175A (en) * | 2018-07-13 | 2018-12-21 | 安徽义林塑业有限公司 | A kind of polypropylene packaging material containing modified graphene oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102276836B (en) | Flame retardant bimaleimide resin and preparation method thereof | |
| CN106916336B (en) | The method of ion liquid modified hollow glass micropearl and using it as the flame retardant thermoplastic polyurethane elastomer of fire retardant | |
| CN103980430B (en) | A kind of preparation method of unsaturated polyester (UP) flame-proof composite material | |
| CN103589076A (en) | Radiation-resistant halogen-free flame-retardant cable material and preparation method thereof | |
| CN113773578A (en) | Lithium ion battery shell | |
| CN112280100A (en) | Composite intumescent flame retardant and preparation method thereof | |
| CN107459492A (en) | A kind of organically-modified melamine polyphosphate and preparation method thereof | |
| US3878166A (en) | Flame retardant polymeric compositions | |
| Xiao et al. | Study on the flame-retardance and thermal stability of the acid anhydride-cured epoxy resin flame-retarded by triphenyl phosphate and hydrated alumina | |
| CN103408960A (en) | Lanthanum stannate and application of composition of lanthanum stannate and inorganic flame retardant in halogen-containing superpolymer | |
| CN110128698B (en) | Environment-friendly flame-retardant smoke suppressant and preparation method thereof | |
| CN105001571A (en) | Metal oxide-loaded active carbon synergetic intumescent flame retardant cable material and preparation method thereof | |
| CN106189049A (en) | A kind of lead-acid accumulator flame-retardant plastic-housing material | |
| WO2018035999A1 (en) | P-phenylenediamine chemical grafting modified ammonium polyphosphate derivative and preparation method therefor | |
| CN109517279B (en) | Halogen-free phosphorus synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof | |
| CN113185873B (en) | Preparation method of bio-based flame-retardant and anti-photoaging PVA composite material | |
| CN106398150A (en) | A halogen-free flame-retardant thermosetting type resin composite material and a preparing method thereof | |
| CN107674303B (en) | Modified kaolin flame-retardant synergist and preparation method and application thereof | |
| CN110256795B (en) | Olefinic carbon damping material with high fireproof performance as well as preparation method and application thereof | |
| CN108165126A (en) | It is a kind of for fire resistant coating of lithium-ion-power cell packet and preparation method thereof | |
| CN113563829B (en) | Flame-retardant EVA adhesive film and preparation method and application thereof | |
| CN107141576A (en) | The preparation of halogen-free flame retardants and its application in EVA expanded materials | |
| CN111269265A (en) | Pyrazole-rich flame retardant and preparation method thereof | |
| CN110903546A (en) | Flame-retardant high polymer material and preparation method and application thereof | |
| CN105949509A (en) | Organic-inorganic hybrid magnesium hexamethylene phosphate flame retardant and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211210 |