CN105977494B - Aluminium foil and preparation method thereof suitable for lithium ion battery - Google Patents
Aluminium foil and preparation method thereof suitable for lithium ion battery Download PDFInfo
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- CN105977494B CN105977494B CN201610290304.5A CN201610290304A CN105977494B CN 105977494 B CN105977494 B CN 105977494B CN 201610290304 A CN201610290304 A CN 201610290304A CN 105977494 B CN105977494 B CN 105977494B
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- aluminium
- rare earth
- lithium ion
- ion battery
- intermediate alloy
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- 239000005030 aluminium foil Substances 0.000 title claims abstract description 51
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 138
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 136
- 239000004411 aluminium Substances 0.000 claims abstract description 122
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 93
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 55
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 49
- 239000000956 alloy Substances 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 235000012459 muffins Nutrition 0.000 claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 20
- 230000008018 melting Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 238000005097 cold rolling Methods 0.000 claims abstract description 9
- 238000005496 tempering Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000002608 ionic liquid Substances 0.000 claims description 37
- -1 1- butyl -3- methyl imidazolium tetrafluoroborate Chemical compound 0.000 claims description 33
- 239000002105 nanoparticle Substances 0.000 claims description 31
- 150000003839 salts Chemical class 0.000 claims description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- 238000013019 agitation Methods 0.000 claims description 16
- 229910003460 diamond Inorganic materials 0.000 claims description 16
- 239000010432 diamond Substances 0.000 claims description 16
- 239000002086 nanomaterial Substances 0.000 claims description 16
- 239000013049 sediment Substances 0.000 claims description 16
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical group [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims description 15
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- IBZJNLWLRUHZIX-UHFFFAOYSA-N 1-ethyl-3-methyl-2h-imidazole Chemical compound CCN1CN(C)C=C1 IBZJNLWLRUHZIX-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 239000003337 fertilizer Substances 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 8
- CAAMSDWKXXPUJR-UHFFFAOYSA-N 3,5-dihydro-4H-imidazol-4-one Chemical compound O=C1CNC=N1 CAAMSDWKXXPUJR-UHFFFAOYSA-N 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 5
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 150000003863 ammonium salts Chemical class 0.000 claims description 5
- 238000005660 chlorination reaction Methods 0.000 claims description 5
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 5
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 5
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 5
- KAIPKTYOBMEXRR-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole Chemical compound CCCCN1CN(C)C=C1 KAIPKTYOBMEXRR-UHFFFAOYSA-N 0.000 claims description 4
- DYVIVMCAMDJZLM-UHFFFAOYSA-N C(F)(F)F.C(CCC)N1CN(C=C1)C Chemical compound C(F)(F)F.C(CCC)N1CN(C=C1)C DYVIVMCAMDJZLM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052693 Europium Inorganic materials 0.000 claims description 4
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 4
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052689 Holmium Inorganic materials 0.000 claims description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims description 3
- 229910052773 Promethium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 3
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 3
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 3
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 3
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 claims description 3
- VQMWBBYLQSCNPO-UHFFFAOYSA-N promethium atom Chemical compound [Pm] VQMWBBYLQSCNPO-UHFFFAOYSA-N 0.000 claims description 3
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 3
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 229940124530 sulfonamide Drugs 0.000 claims 1
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 description 17
- 239000007789 gas Substances 0.000 description 16
- 239000000047 product Substances 0.000 description 14
- 230000002745 absorbent Effects 0.000 description 12
- 239000002250 absorbent Substances 0.000 description 12
- 239000011888 foil Substances 0.000 description 12
- 238000007872 degassing Methods 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 229910052702 rhenium Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 150000003851 azoles Chemical class 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 150000002460 imidazoles Chemical class 0.000 description 3
- 230000009972 noncorrosive effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012429 reaction media Substances 0.000 description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 3
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052776 Thorium Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- UINDRJHZBAGQFD-UHFFFAOYSA-N 2-ethyl-1-methylimidazole Chemical compound CCC1=NC=CN1C UINDRJHZBAGQFD-UHFFFAOYSA-N 0.000 description 1
- PXKPKGHXANCVMC-UHFFFAOYSA-N 3-butyl-1-methyl-1,2-dihydroimidazol-1-ium;trifluoromethanesulfonate Chemical compound OS(=O)(=O)C(F)(F)F.CCCCN1CN(C)C=C1 PXKPKGHXANCVMC-UHFFFAOYSA-N 0.000 description 1
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- SMWDFEZZVXVKRB-UHFFFAOYSA-N anhydrous quinoline Natural products N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 1
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Natural products C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- SULCVUWEGVSCPF-UHFFFAOYSA-L europium(2+);carbonate Chemical compound [Eu+2].[O-]C([O-])=O SULCVUWEGVSCPF-UHFFFAOYSA-L 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 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
- 239000006187 pill Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
- H01M4/662—Alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention discloses a kind of preparation method of aluminium foil suitable for lithium ion battery, include: one, grind rare earth element, obtain the Nano Rare-earth Materials that partial size is 1-200nm, itself and aluminium powder ground and mixed are stirred, it is pressed into muffin, then muffin is melted, is cast into rare earth aluminium intermediate alloy ingot；Two, melting in smelting furnace is added in rare earth aluminium intermediate alloy ingot and aluminium ingot, obtains blank；Three, by the blank casting after melting, aluminium plate blank is obtained；Four, aluminium plate blank is subjected to tempering heat treatment；Five, aluminium plate blank is subjected to continuous cold rolling, obtains head product；Six, head product is subjected to finish rolling, obtains aluminium foil.Correspondingly, invention additionally discloses a kind of aluminium foils prepared by the above method.The intensity of aluminium foil of the present invention is high, and thermal conductivity is high, and conductivity is high, and mechanical property is good, electrochemical corrosion resistant.
Description
Technical field
The present invention relates to the aluminium foils and its preparation side of metallic aluminium technical field more particularly to a kind of suitable lithium ion battery
Method.
Background technique
Lithium ion battery aluminium foil requires to require than normal aluminium foil high:
First, lithium ion battery is harsher with aluminium foil working environment, in lithium ion battery charge and discharge process, positive material
Material is easy fever, and maximum positive electrode contact area is aluminium foil.Aluminium foil is after thermal cycling, it is desirable that still is able to keep preferably to draw
Stretch intensity and other mechanical performance indexs.
Second, the working environment of aluminum foil for lithium battery is inside battery, there is the corrosiveness of lithium hexafluorophosphate electrolyte solution, institute
To require the corrosion of aluminium foil electrolyte resistance, electrolyte is lithium hexafluoro phosphate, belongs to ionic liquid, has electrochemistry to any metal
And chemical attack.
Third, lithium ion battery has extra electric field when charge and discharge, so electrochemical corrosion is exceedingly fast, common
Rafifinal, in such a case, surface corrosion rate are very fast.The common passivation technology of high-purity aluminum foil only generates a kind of band tunnel
The aluminum oxide passivating film of channel effect, but this passivating film is the corrosion intolerant to electrochemistry.Only rare-earth salt passive film can be with
Electrochemical corrosion, and be conductive passivating film.Therefore, extraordinary aluminium foil alloy is developed, necessity of this battery process is become.It is dilute
Conductive passivating film can be generated in native aluminium alloy, and fine aluminium is protected not to be etched electrochemically, and detection salt spray resistance index can achieve
1000 hours.
4th, the processing technology of lithium ion battery is three kinds at present: stacked, takeup type, lamination add takeup type, these three
Processing technology all exists on the aluminium foil pole piece of lithium battery, applies stress.Stress is the necessary condition that electrochemical corrosion occurs.In lithium
Ion battery anode pole piece stress concentrate place, the speed of electrochemical corrosion faster, so improve aluminium mechanical strength index
It is also a high-tech requirement.
The research and application carried out at present to the electric conductivity of aluminium conductor, is more successfully rare earth aluminum material and boracic aluminium
Material, though the former improves the intensity of aluminium alloy, but affects the electric conductivity of aluminium alloy；Although the latter can be to a certain extent
The electric conductivity of aluminium alloy is improved, but intensity can only achieve the level of fine aluminium.
The prior art, the patent of Publication No. CN1300356 C disclose a kind of aluminium base of the high conductivity containing rare earth, boron
Material, material composition disclosed in embodiment contain aluminium Al, rhenium Re and boron, but just 48.8 tons of the yield of whole world rhenium Re, I
It is just 2 tons of state's rhenium yield, expensive, cause the cost of aluminum material high, it is difficult to marketing, it is difficult to be applied to big production
In the production of the lithium battery of amount.Moreover, the tensile strength and conductivity of the aluminum material of the patent can not meet lithium ion battery
With the requirement of aluminium foil.
Summary of the invention
The technical problem to be solved in the present invention is that providing, a kind of intensity is high, and thermal conductivity is high, and conductivity is high, mechanical property
It is good, electrochemical corrosion resistant, the aluminium foil suitable for lithium ion battery.
The technical problem to be solved in the present invention also resides in a kind of method for preparing above-mentioned aluminium foil that provides, the method step letter
List, raw material sources are extensive, reaction medium is non-corrosive, yield is higher, low energy consumption.
To solve the above-mentioned problems, the present invention provides a kind of preparation method of aluminium foil suitable for lithium ion battery, comprising:
One, the rare earth element of purity >=99% is put into diamond lapping machine and is ground, obtaining partial size is 1-200nm
Nano Rare-earth Materials, the aluminium powder ground and mixed by Nano Rare-earth Materials and purity >=99 %, copper content lower than 0.005% stirs,
It is pressed into muffin according to the weight ratio of 1:900-1200, then muffin is melted, is cast into rare earth aluminium intermediate alloy ingot；
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:8-12, into
Row melting, obtains blank；
Three, by the blank casting after melting, aluminium plate blank is obtained；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to cold rolling, obtains head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
As an improvement of the above scheme, the step 1 includes:
1) rare earth element is added in ionic liquid A and is dispersed, the weight ratio of the rare earth element and ionic liquid A
For 1:1, reaction temperature is 90-110 DEG C, and is passed through carbon dioxide or ammonia, obtains sediment and ionic liquid B；
2) sediment and ionic liquid B are put into grinder and are ground, obtain the nanometer material that partial size is 1-200nm
Material；
3) nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction；
4) by nanoparticle cleaning and heating, drying；
5) nanoparticle after drying is ground with aluminium powder, is mixed, according to the weight ratio pressure of 1:900-1200
At muffin；
6) muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy；
7) contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot；
Wherein, the rare earth element selects times of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium
It is a kind of；
Purity >=99.99% of the rare earth element；
The ionic liquid A selects three cyanogen first salt of 1- ethyl-3-methylimidazole, 1- butyl -3- methylimidazole tetrafluoro boric acid
Salt, 1- butyl -3- methylimidazole hexafluorophosphate, 1- butyl -3- methylimidazole fluoroform sulphonate, 1- butyl -3- methyl miaow
Azoles bis-trifluoromethylsulfoandimide salt, -2 imidazolone of 1,3- dimethyl, chlorination 1,3- bis- (9- methyl anthracene) imidazoles, 1- ethyl -3-
Any one or more of methyl imidazolium tetrafluoroborate, 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt.
As an improvement of the above scheme, the rare earth element is added in ionic liquid A with carbonate or ammonium salt and is divided
It dissipates.
As an improvement of the above scheme, the carbon dioxide or nitrogen and the mixture of rare earth element and ionic liquid A
Molar ratio mole ratio is 1:1.2.
As an improvement of the above scheme, the ionic liquid A selects three cyanogen first salt of 1- ethyl-3-methylimidazole, 1- butyl-
3- methyl imidazolium tetrafluoroborate, 1- butyl -3- methylimidazole hexafluorophosphate, 1- butyl -3- methylimidazole trifluoromethanesulfonic acid
Salt, 1- butyl -3- methylimidazole bis-trifluoromethylsulfoandimide salt, -2 imidazolone of 1,3- dimethyl, (the 9- methyl of chlorination 1,3- bis-
Anthracene) imidazoles, 1- ethyl-3-methylimidazole tetrafluoroborate, appointing in 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt
It is a kind of.
As an improvement of the above scheme, it is 1060 that the aluminium powder, which selects the trade mark, 1070,1080,1050,1145,1235,
1089, aluminium powder made of 8011,8079,8021 aluminium alloy；
Purity >=99.99% of the aluminium powder, copper content are lower than 0.002%；
The nanoparticle and aluminium powder are pressed into muffin according to the weight ratio of 1:1000.
As an improvement of the above scheme, the temperature of the electromagnetic agitation furnace is 660-860 DEG C.
As an improvement of the above scheme, in step 4), nano particles by using deionized water is cleaned, is 100-130 in temperature
Heating, drying is carried out under conditions of DEG C.
As an improvement of the above scheme, the preparation method further include:
The gas that step 1) is generated, which is pumped into, to be absorbed in slot, and chemical fertilizer is obtained, wherein the absorption slot is soda lime.
Correspondingly, invention additionally discloses a kind of aluminium foils suitable for lithium ion battery, wherein it is by above-mentioned preparation method system
?.
Compared with prior art, the beneficial effects of the present invention are:
One, the present invention adds rare earth element in aluminium alloy ingots, cooperates ionic liquid, effectively increase aluminium foil intensity and
Mechanical performance index.Meanwhile rare earth element and aluminium atom are capable of forming regular octahedron structure, band gap is reduced, crystallization refinement, therefore
It being capable of electrochemical corrosion resistant.Moreover, the present invention must can be worked with high-purity rare-earth, and if impurity is more in rare earth, meeting
The disorder for causing aluminium alloy and rare earth to crystallize, is not achieved corrosion resistant effect.In addition, purity >=99.99% of aluminium powder of the present invention,
Copper content is lower than 0.005%, just can form compound with lithium ion when charge and discharge to avoid battery, reduce lithium-ion electric
The loss of tankage reaches the charging effect of high-energy.Further, the present invention is also by the size controlling of nano material in 200nm
Hereinafter, avoiding the reunion between rare earth ion, diffusion of the rare earth in aluminium ensure that, to guarantee that aluminium atom forms regular octahedron
Structure.
Using the current collector aluminum foil for being used as lithium ion battery made of rare earth aluminium intermediate alloy ingot of the present invention, there is high stretch
The advantages that intensity, electrolyte resistance corrosion, good percentage elongation, the convex value of Sven-Gan Eriksson cup is high, the tension of aluminium foil is not lost in long-term charge and discharge
Intensity and every mechanical performance index.The aluminium foil recycles for a long time as power battery will not generate belt phenomenon, and thermal conductivity is led
It is electrically good, can high current charge-discharge repeatedly, hot tearing gap will not be generated.
Two, the present invention is chemically reacted using the high velocity impact in diamond lapping machine, is made by solid phase synthesis process
Rare earth ammonium salt, rare earth carbonate are obtained under solid state shape, chemistry displacement reaction occurs, realizes the purification of rare earth element.Solid grain
Sub- high velocity impact, the heat of generation accelerate reaction speed, meanwhile, it also is heated acting using gas, has exhausted exhaust gas.When
It, will not chemical erosion diamond lap cavity as by-product water and ammonia, carbon dioxide gas when displacement reaction occurs.Instead
The gas that should be generated obtains the fertilizer of production agricultural demand by soda lime absorbent by absorption tower.
Preparation method step of the invention is simple, easily operated, is suitble to large-scale industrial production;Raw material sources are wide
General, reaction medium is non-corrosive, can recycle;Yield is higher, is easy to purify;Reaction condition is mild, atmospheric reverse
It answers, low energy consumption.
Detailed description of the invention
Fig. 1 is the flow chart of the preparation method of aluminium foil of the present invention；
Fig. 2 is the flow chart of the preparation method of rare earth aluminium intermediate alloy ingot of the present invention.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawings and examples
The present invention is described in further detail.
Referring to Fig. 1, the present invention provides a kind of preparation method of aluminium foil suitable for lithium ion battery, comprising:
S1, it prepares rare earth aluminium intermediate alloy ingot: the rare earth element of purity >=99% being put into diamond lapping machine and is ground
Mill obtains the Nano Rare-earth Materials that partial size is 1-200nm, Nano Rare-earth Materials and purity >=99 %, copper content is lower than
0.005% aluminium powder ground and mixed stirring, is pressed into muffin according to the weight ratio of 1:900-1200, then by muffin fusing, be cast into it is dilute
Native aluminium intermediate alloy ingot；
S2, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:8-12, into
Row melting, obtains blank；
Preferably, melting condition is: 6 hours in 700 DEG C of smelting furnaces.
Melting is degasification slagging-off, reduces the hydrogen in rare earth aluminum foil, the impurity in melting is removed, so that crystalline aluminophosphate is more
It is fine and smooth.
S3, by the blank casting after melting, obtain aluminium plate blank；
Specifically, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, rolling
Obtain the aluminium plate blank with a thickness of 0.1-0.5mm；
Preferably, the blank after melting is successively carried out continous way refining skim, crystal grain refinement, continous way degasification slagging-off,
Filtration treatment.More preferably, the present invention is filtered place using argon gas progress continous way degasification slagging-off, using high technology ceramics filter plate
Reason.
S4, aluminium plate blank is subjected to tempering heat treatment；
S5, aluminium plate blank is subjected to continuous cold rolling, obtains head product；
S6, head product is subjected to finish rolling, obtains aluminium foil.
The present invention provides a kind of methods for preparing aluminium foil using casting-rolling technology, and the aluminium of different-thickness requirement can be made
Foil makes it meet the needs of lithium ion battery.Specifically, the thickness of the aluminium foil can be ultra-thin high intensity, high thermal conductivity, conduction
Series: 6-10 μ；It is also possible to medium thickness, high intensity, high thermal conductivity, conductive series: 12-16 μ；It or is that lithium battery use dissipates
Hot plate series: 30-500 μ.
Specifically, the step S1 is to prepare rare earth aluminium intermediate alloy ingot, comprising:
S101, rare earth element is added in ionic liquid A and is dispersed, the weight of the rare earth element and ionic liquid A
Than for 1:1, reaction temperature is 90-110 DEG C, and is passed through carbon dioxide or ammonia, sediment and ionic liquid B are obtained；
Wherein, the rare earth element selects times of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium
It is a kind of；
Purity >=99.99% of the rare earth element.
The ionic liquid A selects three cyanogen first salt of 1- ethyl-3-methylimidazole, 1- butyl -3- methylimidazole tetrafluoro boric acid
Salt, 1- butyl -3- methylimidazole hexafluorophosphate, 1- butyl -3- methylimidazole fluoroform sulphonate, 1- butyl -3- methyl miaow
Azoles bis-trifluoromethylsulfoandimide salt, -2 imidazolone of 1,3- dimethyl, chlorination 1,3- bis- (9- methyl anthracene) imidazoles, 1- ethyl -3-
Any one or more of methyl imidazolium tetrafluoroborate, 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt.
Preferably, the rare earth element is added in ionic liquid A with carbonate or ammonium salt and is dispersed.
The ionic liquid A selects three cyanogen first salt of 1- ethyl-3-methylimidazole, 1- butyl -3- methylimidazole tetrafluoro boric acid
Salt, 1- butyl -3- methylimidazole hexafluorophosphate, 1- butyl -3- methylimidazole fluoroform sulphonate, 1- butyl -3- methyl miaow
Azoles bis-trifluoromethylsulfoandimide salt, -2 imidazolone of 1,3- dimethyl, chlorination 1,3- bis- (9- methyl anthracene) imidazoles, 1- ethyl -3-
Any one of methyl imidazolium tetrafluoroborate, 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt.
The present invention adds rare earth element in aluminium alloy ingots, cooperates ionic liquid, effectively increases the intensity and power of aluminium foil
Learn performance indicator.Meanwhile rare earth element and aluminium atom are capable of forming regular octahedron structure, band gap is reduced, crystallization refinement, therefore energy
Enough electrochemical corrosion resistants.Moreover, the present invention must can be worked with high-purity rare-earth, if impurity is more in rare earth, can make
At the disorder of aluminium alloy and rare earth crystallization, corrosion resistant effect is not achieved.
The molar ratio mole ratio of the mixture of the carbon dioxide or nitrogen and rare earth element and ionic liquid A is 1:
1.2.For the present invention by the way that carbon dioxide or ammonia to be passed through in the mixing liquid of rare earth element and ionic liquid A, residue is height
Purity rare-earth precipitation and a small amount of ionic liquid B.
It is further preferred that the preparation method further include:
The gas that step 1) is generated, which is pumped into, to be absorbed in slot, and chemical fertilizer is obtained, wherein the absorption slot is soda lime.
S102, sediment and ionic liquid B are put into grinder and are ground, obtain the nanometer that partial size is 1-200nm
Material.
Preferably, the grinder is diamond lapping machine.
High-purity rare-earth material is made, is realized using chemical colloidal sol, gel method.But it is realized in chemical sol-gel processes
Process in, the reunion between rare earth ion is very serious, if the precipitation method production rare earth particle it is excessive, influence rare earth
Diffusion in aluminium, to influence the chemical reaction that aluminium atom generates regular octahedron.
Inventor by a large amount of it is demonstrated experimentally that partial size of the rare earth element optimum dispersion in aluminium is no more than 200nm, because
This makes high-purity rare-earth using sol-gal process, and grinding is necessary condition.Common grinding method is " bead mill ", is often used
" zirconium pearl " or " aluminium pill " is used as abrasive media, and milling time is long, and pearl abrasion can bring secondary pollution, reduce the pure of rare earth
Degree.This polishing can bring new impurity into, to influence the corrosion resistance of rare earth aluminium alloy.
The present invention uses diamond lapping machine, does not have abrasive media, only achievees the effect that grinding by diamond cavity.
Particle is ground in the intracavitary generation reciprocating collision of diamond lap, generates energy, to realize grinding refinement.
The present invention by the size controlling of nano material in 200nm hereinafter, avoid the reunion between rare earth ion, ensure that dilute
Diffusion of the soil in aluminium, to guarantee that aluminium atom forms regular octahedron structure.
S103, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction.
S104, nanoparticle is cleaned into simultaneously heating, drying.
Preferably, nano particles by using deionized water is cleaned, carries out heating baking under conditions of temperature is 100-130 DEG C
It is dry.
More preferably, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 105 DEG C.
S105, by after drying nanoparticle and aluminium powder grind, be mixed, according to the weight ratio of 1:900-1200
It is pressed into muffin.
Specifically, the aluminium powder selects the trade mark is 1060,1070,1080,1050,1145,1235,1089,8011,
8079, aluminium powder made of 8021 aluminium alloy.
Purity >=99.99% of the aluminium powder, copper content are lower than 0.005%, just can be to avoid battery when charge and discharge
Compound is formed with lithium ion, the loss of capacity of lithium ion battery is reduced, reaches the charging effect of high-energy.Preferably, described
The copper content of aluminium powder is lower than 0.002%.
More preferably, the nanoparticle and aluminium powder are pressed into muffin according to the weight ratio of 1:1000.
S106, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy.
Preferably, the temperature of the electromagnetic agitation furnace is 660-860 DEG C.
More preferably, the temperature of the electromagnetic agitation furnace is 760 DEG C.
S107, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
In short, the present invention is chemically reacted by solid phase synthesis process using the high velocity impact in diamond lapping machine,
So that chemistry displacement reaction under solid state shape, occurs for rare earth ammonium salt, rare earth carbonate, the purification of rare earth element is realized.Solid
Particle high speed collision, the heat of generation accelerate reaction speed, meanwhile, it also is heated acting using gas, has exhausted exhaust gas.
It, will not chemical erosion diamond lap cavity as by-product water and ammonia, carbon dioxide gas when displacement reaction occurs.
The gas that reaction generates obtains the fertilizer of production agricultural demand by soda lime absorbent by absorption tower.
Preparation method step of the invention is simple, easily operated, is suitble to large-scale industrial production;Raw material sources are wide
General, reaction medium is non-corrosive, can recycle;Yield is higher, is easy to purify;Reaction condition is mild, atmospheric reverse
It answers, low energy consumption.
Correspondingly, invention additionally discloses a kind of aluminium foils suitable for lithium ion battery, wherein it is by above-mentioned preparation method system
?.
The present invention is reduced the content of copper, is changed the synergistic effect between each element, improved by addition rare earth element
The performance and mechanical strength of aluminium foil, improve conductivity, improve exothermic temperature, its satisfaction is made to prepare power battery lithium battery aluminium
The requirement of foil.
Using the current collector aluminum foil for being used as lithium ion battery made of rare earth aluminium intermediate alloy ingot of the present invention, there is high stretch
The advantages that intensity, electrolyte resistance corrosion, good percentage elongation, the convex value of Sven-Gan Eriksson cup is high, the tension of aluminium foil is not lost in long-term charge and discharge
Intensity and every mechanical performance index.The aluminium foil recycles for a long time as power battery will not generate belt phenomenon, and thermal conductivity is led
It is electrically good, can high current charge-discharge repeatedly, hot tearing gap will not be generated.
Using the aluminium foil for being used as lithium ion battery made of rare earth aluminium intermediate alloy ingot, technical parameter is as follows:
(1), appearance:
1, aluminum foil coil winds elastic appropriateness, and end face is smooth and clean, the smooth of the edge；
2, aluminum foil coil staggered floor is no more than ± 0.5mm；
3, aluminum foil coil die width is wide more than or equal to foil, and two end of the tube core wide 5mm of of length no more than foil, core pipe diameter can select
With 3 inches, 6 inches；
4, aluminium foil is wrapped in die center, and roundness deviation is within national standard；
5, joint area, which rolls up two ends in aluminium, clear joint marker.
(2), mechanical property:
| Thickness range | State | Tensile strength | Elongation percentage | Sven-Gan Eriksson carries on the back convex value |
| 0.007-0.03mm | H18 | 230-270 Mpa | ≥1.0% | ≥7.2 |
(3), other performances:
| Thermal conductivity | Conductivity σ | Pinhole number |
| 230-240 W/(m·K) | 66-89 s/m | A/every sq-km of 0-2 |
It should be noted that for 8 line aluminium alloys, elongation percentage >=4.0% of the present invention.
With specific embodiment, the present invention is further explained below
Embodiment 1
One, rare earth aluminium intermediate alloy ingot is prepared:
1, the carbonate of praseodymium is added in three cyanogen first salt of 1- ethyl-3-methylimidazole and is dispersed, praseodymium and 1- ethyl -3- first
The weight ratio of three cyanogen first salt of base imidazoles is 1:1, and reaction temperature is 90 DEG C, and is passed through carbon dioxide, obtains sediment and ionic liquid
Body B, the gas of generation are imported into soda lime absorbent slot, make chemical fertilizer by soda lime absorbent；
2, sediment and ionic liquid B are put into diamond lapping machine and are ground, ground 1 hour, obtaining partial size is
The nano material of 1-200nm；
3, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction；
4, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 100 DEG C；
5, by after drying nanoparticle and aluminium powder grind, be mixed, be pressed into powder according to the weight ratio of 1:900
Cake, it is aluminium powder made of 1060 aluminium alloys, purity >=99.99% that the aluminium powder, which selects the trade mark,；
6, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy, the temperature of the electromagnetic agitation furnace is
660 DEG C, mixing time is 4 hours；
7, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:8, are melted
Refining, obtains blank；
Three, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, it is rolling
With a thickness of the aluminium plate blank of 0.1mm；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to continuous cold rolling, without making annealing treatment, obtain head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
Embodiment 2
One, rare earth aluminium intermediate alloy ingot is prepared:
1, the ammonium salt of neodymium is added in 1- butyl -3- methylimidazole hexafluorophosphate and is dispersed, neodymium and 1- butyl -3- first
The weight ratio of base limidazolium hexafluorophosphate is 1:1, and reaction temperature is 95 DEG C, and is passed through ammonia, obtains sediment and ionic liquid
B, the gas of generation are imported into soda lime absorbent slot, make chemical fertilizer by soda lime absorbent；
2, sediment and ionic liquid B are put into diamond lapping machine and are ground, ground 2 hours, obtaining partial size is
The nano material of 1-200nm；
3, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction.
4, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 110 DEG C
5, by after drying nanoparticle and aluminium powder grind, be mixed, be pressed into powder according to the weight ratio of 1:1000
Cake, it is aluminium powder made of 1080 aluminium alloys, purity >=99.99% that the aluminium powder, which selects the trade mark,；
6, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy, the temperature of the electromagnetic agitation furnace is
700 DEG C, mixing time is 5 hours；
7, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:10, are carried out
Melting obtains blank；
Three, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, it is rolling
With a thickness of the aluminium plate blank of 0.2mm；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to continuous cold rolling, without making annealing treatment, obtain head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
Embodiment 3
One, rare earth aluminium intermediate alloy ingot is prepared:
1, will europium carbonate be added 1- butyl -3- methylimidazole bis-trifluoromethylsulfoandimide salt in disperse, europium and
The weight ratio of 1- butyl -3- methylimidazole bis-trifluoromethylsulfoandimide salt is 1:1, and reaction temperature is 100 DEG C, and is passed through titanium dioxide
Carbon obtains sediment and ionic liquid B, and the gas of generation is imported into soda lime absorbent slot, makees chemical fertilizer by soda lime absorbent；
2, sediment and ionic liquid B are put into diamond lapping machine and are ground, ground 3 hours, obtaining partial size is
The nano material of 1-200nm；
3, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction.
4, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 115 DEG C
5, by after drying nanoparticle and aluminium powder grind, be mixed, be pressed into powder according to the weight ratio of 1:1100
Cake, it is aluminium powder made of 1050 aluminium alloys, purity >=99.99% that the aluminium powder, which selects the trade mark,；
6, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy, the temperature of the electromagnetic agitation furnace is
750 DEG C, mixing time is 5 hours；
7, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:10, are carried out
Melting obtains blank；
Three, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, it is rolling
With a thickness of the aluminium plate blank of 0.3mm；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to continuous cold rolling, without making annealing treatment, obtain head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
Embodiment 4
One, rare earth aluminium intermediate alloy ingot is prepared:
1, the carbonate of thorium is added in -2 imidazolone of 1,3- dimethyl and is dispersed, thorium and 1, -2 imidazoles of 3- dimethyl
The weight ratio of quinoline ketone is 1:1, and reaction temperature is 100 DEG C, and is passed through carbon dioxide, obtains sediment and ionic liquid B, generation
Gas is imported into soda lime absorbent slot, makees chemical fertilizer by soda lime absorbent；
2, sediment and ionic liquid B are put into diamond lapping machine and are ground, ground 3 hours, obtaining partial size is
The nano material of 1-200nm；
3, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction.
4, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 120 DEG C
5, by after drying nanoparticle and aluminium powder grind, be mixed, be pressed into powder according to the weight ratio of 1:1150
Cake, it is aluminium powder made of 1235 aluminium alloys, purity >=99.99% that the aluminium powder, which selects the trade mark,；
6, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy, the temperature of the electromagnetic agitation furnace is
750 DEG C, mixing time is 6 hours；
7, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:9, are melted
Refining, obtains blank；
Three, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, it is rolling
With a thickness of the aluminium plate blank of 0.4mm；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to continuous cold rolling, without making annealing treatment, obtain head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
Embodiment 5
One, rare earth aluminium intermediate alloy ingot is prepared:
1, the ammonium salt of ytterbium is added in 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt and is dispersed, ytterbium and 1-
The weight ratio of ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt is 1:1, and reaction temperature is 110 DEG C, and is passed through ammonia, is obtained
To sediment and ionic liquid B, the gas of generation is imported into soda lime absorbent slot, makees chemical fertilizer by soda lime absorbent；
2, sediment and ionic liquid B are put into diamond lapping machine and are ground, ground 4 hours, obtaining partial size is
The nano material of 1-200nm；
3, nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction.
4, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 130 DEG C
5, by after drying nanoparticle and aluminium powder grind, be mixed, be pressed into powder according to the weight ratio of 1:1200
Cake, the aluminium powder select aluminium powder made of the aluminium alloy that the trade mark is 8021, purity >=99.99%；
6, muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy, the temperature of the electromagnetic agitation furnace is
860 DEG C, mixing time is 6 hours；
7, contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot.
Two, rare earth aluminium intermediate alloy ingot and purity >=99 % aluminium ingot are added in smelting furnace by weight 1:12, are carried out
Melting obtains blank；
Three, by the blank after melting successively carry out refining skim, crystal grain refinement, degasification slagging-off, filtration treatment, it is rolling
With a thickness of the aluminium plate blank of 0.5mm；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to continuous cold rolling, without making annealing treatment, obtain head product；
Six, head product is subjected to finish rolling, obtains aluminium foil.
The resulting aluminium foil of embodiment 1-5 is made into technology detection, technical parameter is as follows:
In conclusion the intensity of aluminium foil of the present invention is high, thermal conductivity is high, and conductivity is high, and mechanical property is good, and resistance to electrochemistry is rotten
Erosion, can satisfy the requirement of lithium ion battery.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (7)
1. a kind of preparation method of the aluminium foil suitable for lithium ion battery characterized by comprising
One, the rare earth element of purity >=99% is put into diamond lapping machine and is ground, obtaining partial size is receiving for 1-200nm
Rice rare earth material, the aluminium powder ground and mixed by Nano Rare-earth Materials and purity >=99%, copper content lower than 0.005% are stirred, are pressed
It is pressed into muffin according to the weight ratio of 1:900-1200, then muffin is melted, is cast into rare earth aluminium intermediate alloy ingot；
Two, the aluminium ingot of rare earth aluminium intermediate alloy ingot and purity >=99% is added in smelting furnace by weight 1:8-12, is melted
Refining, obtains blank；
Three, by the blank casting after melting, aluminium plate blank is obtained；
Four, aluminium plate blank is subjected to tempering heat treatment；
Five, aluminium plate blank is subjected to cold rolling, obtains head product；
Six, head product is subjected to finish rolling, obtains aluminium foil；
Step 1 includes:
1) rare earth element is added in ionic liquid A with carbonate or ammonium salt and is dispersed, the rare earth element and ionic liquid
The weight ratio of body A is 1:1, and reaction temperature is 90-110 DEG C, and is passed through carbon dioxide or ammonia, obtains sediment and ionic liquid
B；
2) sediment and ionic liquid B are put into grinder and are ground, obtain the nano material that partial size is 1-200nm；
3) nano material is evaporated under reduced pressure, nanoparticle is obtained by extraction；
4) by nanoparticle cleaning and heating, drying；
5) nanoparticle after drying is ground with aluminium powder, is mixed, is pressed into powder according to the weight ratio of 1:900-1200
Cake；
6) muffin is stirred in electromagnetic agitation furnace, is fused into contained aluminium-base intermediate alloy；
7) contained aluminium-base intermediate alloy is cast into rare earth aluminium intermediate alloy ingot；
Wherein, the rare earth element selects any of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium
Kind；
Purity >=99.99% of the rare earth element；
The ionic liquid A selects three cyanogen first salt of 1- ethyl-3-methylimidazole, 1- butyl -3- methyl imidazolium tetrafluoroborate, 1-
Butyl -3- methylimidazole hexafluorophosphate, 1- butyl -3- methylimidazole fluoroform sulphonate, 1- butyl -3- methylimidazole double three
Fluorine sulfonamide, -2 imidazolone of 1,3- dimethyl, chlorination 1,3- bis- (9- methyl anthracene) imidazoles, 1- ethyl -3- methyl miaow
Any one or more of azoles tetrafluoroborate, 1- ethyl-3-methylimidazole bis-trifluoromethylsulfoandimide salt.
2. the preparation method of the aluminium foil according to claim 1 suitable for lithium ion battery, which is characterized in that the dioxy
The molar ratio for changing carbon or ammonia and rare earth element and the mixture of ionic liquid A is 1:1.2.
3. the preparation method of the aluminium foil according to claim 1 suitable for lithium ion battery, which is characterized in that step 5)
In, the aluminium powder selects the aluminium that the trade mark is 1060,1070,1080,1050,1145,1235,1089,8011,8079,8021 to close
Aluminium powder made of gold；
Purity >=99.99% of the aluminium powder, copper content are lower than 0.002%；
The nanoparticle and aluminium powder are pressed into muffin according to the weight ratio of 1:1000.
4. the preparation method of the aluminium foil according to claim 1 suitable for lithium ion battery, which is characterized in that the electromagnetism
The temperature of rabble furnace is 660-860 DEG C.
5. the preparation method of the aluminium foil according to claim 1 suitable for lithium ion battery, which is characterized in that step 4)
In, nano particles by using deionized water is cleaned, carries out heating, drying under conditions of temperature is 100-130 DEG C.
6. the preparation method of the aluminium foil according to claim 1 suitable for lithium ion battery, which is characterized in that the preparation
Method further include:
The gas that step 1) is generated, which is pumped into, to be absorbed in slot, and chemical fertilizer is obtained, wherein the absorption slot is soda lime.
7. a kind of aluminium foil suitable for lithium ion battery, which is characterized in that it is by preparation side described in any one of claims 1-6
Method is made.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102787259A (en) * | 2012-07-12 | 2012-11-21 | 苏州有色金属研究院有限公司 | Aluminium alloy foil for lithium ion battery positive current collector and manufacturing method thereof |
| CN102978483A (en) * | 2012-11-30 | 2013-03-20 | 苏州有色金属研究院有限公司 | Aluminum alloy foil for lithium-ion anode current collector and manufacturing method thereof |
| CN104388766A (en) * | 2014-11-27 | 2015-03-04 | 广西南南铝箔有限责任公司 | Production method of aluminum foil for lithium-ion battery |
| CN105063429A (en) * | 2015-07-15 | 2015-11-18 | 浙江中金铝业有限公司 | Method for preparing aluminum foil for lithium battery |
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| JP2013124402A (en) * | 2011-12-15 | 2013-06-24 | Mitsubishi Alum Co Ltd | Aluminum foil for electrolytic capacitor, and method for producing the same |
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| CN102787259A (en) * | 2012-07-12 | 2012-11-21 | 苏州有色金属研究院有限公司 | Aluminium alloy foil for lithium ion battery positive current collector and manufacturing method thereof |
| CN102978483A (en) * | 2012-11-30 | 2013-03-20 | 苏州有色金属研究院有限公司 | Aluminum alloy foil for lithium-ion anode current collector and manufacturing method thereof |
| CN104388766A (en) * | 2014-11-27 | 2015-03-04 | 广西南南铝箔有限责任公司 | Production method of aluminum foil for lithium-ion battery |
| CN105063429A (en) * | 2015-07-15 | 2015-11-18 | 浙江中金铝业有限公司 | Method for preparing aluminum foil for lithium battery |
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