JP4170966B2 - リチウム金属アノードの製造方法 - Google Patents
リチウム金属アノードの製造方法 Download PDFInfo
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- JP4170966B2 JP4170966B2 JP2004239052A JP2004239052A JP4170966B2 JP 4170966 B2 JP4170966 B2 JP 4170966B2 JP 2004239052 A JP2004239052 A JP 2004239052A JP 2004239052 A JP2004239052 A JP 2004239052A JP 4170966 B2 JP4170966 B2 JP 4170966B2
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- Prior art keywords
- lithium
- lithium metal
- metal anode
- current collector
- film
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- 229910052744 lithium Inorganic materials 0.000 title claims description 97
- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 239000010949 copper Substances 0.000 claims description 28
- 229910052802 copper Inorganic materials 0.000 claims description 25
- -1 polyfluorocarbon Polymers 0.000 claims description 24
- 238000000151 deposition Methods 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920006254 polymer film Polymers 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 4
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 4
- 229910001386 lithium phosphate Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000010944 silver (metal) Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 238000007740 vapor deposition Methods 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- IDBFBDSKYCUNPW-UHFFFAOYSA-N lithium nitride Chemical group [Li]N([Li])[Li] IDBFBDSKYCUNPW-UHFFFAOYSA-N 0.000 claims description 3
- GLNWILHOFOBOFD-UHFFFAOYSA-N lithium sulfide Chemical compound [Li+].[Li+].[S-2] GLNWILHOFOBOFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000001465 metallisation Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000002210 silicon-based material Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- KOPJDBJPZUTZKU-UHFFFAOYSA-N [B]=S.[Li] Chemical group [B]=S.[Li] KOPJDBJPZUTZKU-UHFFFAOYSA-N 0.000 claims description 2
- IPLCZXJSAIDLRI-UHFFFAOYSA-N [Ge]=S.[Li] Chemical compound [Ge]=S.[Li] IPLCZXJSAIDLRI-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 125000004404 heteroalkyl group Chemical group 0.000 claims description 2
- 125000001072 heteroaryl group Chemical group 0.000 claims description 2
- 125000004446 heteroarylalkyl group Chemical group 0.000 claims description 2
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 239000011147 inorganic material Substances 0.000 claims description 2
- YQNQTEBHHUSESQ-UHFFFAOYSA-N lithium aluminate Chemical compound [Li+].[O-][Al]=O YQNQTEBHHUSESQ-UHFFFAOYSA-N 0.000 claims description 2
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 2
- IFVGFQAONSKBCR-UHFFFAOYSA-N n-[bis(aziridin-1-yl)phosphoryl]pyrimidin-2-amine Chemical compound C1CN1P(N1CC1)(=O)NC1=NC=CC=N1 IFVGFQAONSKBCR-UHFFFAOYSA-N 0.000 claims description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 2
- 238000009832 plasma treatment Methods 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920001610 polycaprolactone Polymers 0.000 claims description 2
- 239000004632 polycaprolactone Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims 2
- FDLZQPXZHIFURF-UHFFFAOYSA-N [O-2].[Ti+4].[Li+] Chemical compound [O-2].[Ti+4].[Li+] FDLZQPXZHIFURF-UHFFFAOYSA-N 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- GLVGLXXAZUYQQV-UHFFFAOYSA-N lithium lanthanum(3+) oxygen(2-) Chemical compound [Li+].[O--].[O--].[La+3] GLVGLXXAZUYQQV-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 description 48
- 206010040844 Skin exfoliation Diseases 0.000 description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 description 13
- 239000005020 polyethylene terephthalate Substances 0.000 description 13
- 238000000576 coating method Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 11
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229920000307 polymer substrate Polymers 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- 238000007756 gravure coating Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 238000007764 slot die coating Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical group FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 description 1
- OQMIRQSWHKCKNJ-UHFFFAOYSA-N 1,1-difluoroethene;1,1,2,3,3,3-hexafluoroprop-1-ene Chemical group FC(F)=C.FC(F)=C(F)C(F)(F)F OQMIRQSWHKCKNJ-UHFFFAOYSA-N 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 238000007611 bar coating method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001227 electron beam curing Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007755 gap coating Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007760 metering rod coating Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- 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
- H01M4/06—Electrodes for primary cells
- H01M4/08—Processes of manufacture
-
- 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
-
- 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
- H01M4/0402—Methods of deposition of the material
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
-
- 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
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
- H01M4/405—Alloys based on lithium
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Description
厚さ25μmのポリエチレンテレフタレートフィルム上に、ダウコーニング社のSyl−off 7900 22.5重量%、Syl−off 7922 2.5重量%及び水75重量%からなるシリコン樹脂組成物を、メイヤーバーコーティング方式によってコーティングした後、180℃で2分間乾燥させて、シリコン樹脂層の厚さが約0.3μmになるようにした。前記離型層上に銅を3,000Åの厚さまで10Å/秒の速度で蒸着した後、リチウム金属を15μmの厚さに蒸着した後、リチウム金属アノードをポリエチレンテレフタレート基材から剥離させた。
銅の蒸着速度を50Å/秒としたこと以外は前記実施例1と同じ方法でリチウム金属アノードを製造した。
蒸着される銅の厚さを6,000Åとしたこと以外は前記実施例1と同じ方法で、リチウム金属アノードを製造した。
蒸着される銅の厚さを6,000Åとして蒸着速度を50Å/秒としたこと以外は前記実施例1と同じ方法でリチウム金属アノードを製造した。
下部基材としてポリエチレンテレフタレートの代わりに厚さ25μmのアルミニウムホイルを使用したこと以外は、前記実施例1と同じ方法でリチウム金属アノードを製造した。
厚さ25μmのポリエチレンテレフタレートフィルム上にダウコーニング社のSyl−off 7900 22.5重量%、Syl−off 7922 2.5重量%及び水75重量%からなるシリコン樹脂組成物を、メイヤーバーコーティング方式によってコーティングした後、180℃で2分間乾燥させて、シリコン樹脂層の厚さが約0.3μmになるようにした。前記離型層上に銅を3,000Åの厚さまで10Å/秒の速度で蒸着した後、リチウム金属を15μmの厚さに蒸着した。次に、19gのアセトニトリル溶液に非晶質ポリエチレンオキシド1.25gとLiN(CF3SO2)2 0.545gとを混合した後、均一な状態になるまで撹拌した。このようにして得られた高分子溶液を、前記で製造されたリチウムが蒸着された試片上にディッピング法でコーティングし、真空で1時間乾燥させて有機膜を形成させた後、リチウム金属アノードをポリエチレンテレフタレート基材から剥離させた。
有機膜を形成させた後でその表面に厚さ15μmのポリエチレンセパレータを覆って密着させたこと以外は、前記実施例6と同じ方法でリチウム金属アノードを製造した。
25μmの厚さのポリエチレンテレフタレートフィルムを基材として使用し、集電体に使われる銅を3,000Åの厚さまで10Å/秒の速度で蒸着した後、リチウム金属を15μmの厚さに蒸着した。最後に、前記リチウム金属アノードを剥離して、銅がポリエチレンテレフタレートフィルムから正しく剥離されたか否かを確認した。
剥離テスト
前記実施例1〜7及び比較例1で製造された、リチウム金属アノード剥離後の基材の表面状態を観察して、下記表1に示し、実施例7により製造されたリチウム金属アノードの写真を図2に示した。左側の最下部は、実施例7によりセパレータまで付着させた後の剥離時以前の状態を示し、その上には剥離させた後の基材面が示されている。また図2の右側にあるリチウム金属アノードは、実施例7により製造されて剥離段階まで完了した、リチウム金属アノードの正面と背面とを示す写真である。
○:清潔に剥離される
△:銅膜の微細な一部が残っている
×:剥離がほとんどない
剥離面の表面元素分析
実施例7で製造されたリチウム金属アノードの銅層面と、ポリエチレンテレフタレートの剥離面とを、XPS(X−ray Photoelectron Spectroscopy)で元素分析し、その結果を図3に示した。ポリエチレンテレフタレート表面ではSi、C、Oと微量のCuとが検出され、リチウム金属アノードの銅層面でも多量のC、Oと少量のSiとが検出されるが、Cuの検出量は微量である。このことから推測すると本発明の剥離段階では、セパレータ/有機膜/リチウム金属/銅/Si樹脂膜とSi樹脂膜/PET基材形態で剥離されると見られる。一方、銅集電体の背面に残っているSi樹脂膜の厚さは、Cuの検出量が非常に微量であるということから推測して、100Å以上であると判断される。一方、前記剥離面の表面元素の定量分析結果を次の表2に示した。
2 リチウム金属層
3 保護膜
4 セパレータ
5 離型層
6 下部基材
7 剥離されたPET表面
8 蒸着されたリチウム金属表面
Claims (19)
- a)下部高分子膜または下部金属膜上に0.1μm〜5.0μmの厚さを有する離型剤層が形成された離型成分を含む基材上に集電体を形成する段階と、
b)前記集電体上にリチウム金属を蒸着する段階と、
c)蒸着された集電体とリチウム金属とを前記基材から剥離する段階
を含む、リチウム金属アノードの製造方法。 - 前記b)段階後に前処理段階または保護膜をリチウム金属上に蒸着させる段階をさらに含むことを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記離型剤層は、シリコン含有化合物、ポリオレフィン、ポリフルオロカーボン、ポリアミド、ポリエステル、ポリカーボネート、ポリウレタン、ポリスチレン、ポリカプロラクトン、それらの混合物またはそれらの共重合体であることを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記離型成分を含む基材の下部高分子膜は、ポリエステル、ポリエチレン、ポリプロピレンまたはポリイミドであることを特徴とする、請求項2に記載のリチウム金属アノードの製造方法。
- 前記離型成分を含む基材の下部金属膜は、Ni、Ti、Cu、Ag、Au、Pt、Fe、Co、Cr、W、Mo、Al、Mg、K、Na、Ca、Sr、Ba、Si、Ge、Sb、Pb、InまたはZnであることを特徴とする、請求項2に記載のリチウム金属アノードの製造方法。
- 前記集電体はNi、Ti、Cu、Ag、Au、Pt、Fe、Co、Cr、W、Mo、Al、Mg、K、Na、Ca、Sr、Ba、Si、Ge、Sb、Pb、InまたはZnであることを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記集電体は、蒸着によるか、あるいは金属ホイルの付着により形成されることを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記集電体の厚さは100Å〜5μmであることを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記集電体を蒸着により形成する場合に、集電体の蒸着速度は0.1〜1,000Å/秒であることを特徴とする、請求項8に記載のリチウム金属アノードの製造方法。
- 前記リチウム金属の蒸着厚さは1〜200μmであることを特徴とする、請求項1に記載のリチウム金属アノードの製造方法。
- 前記前処理段階は酸素、窒素または二酸化炭素プラズマ処理;単純ガス露出;無機物蒸着;または金属蒸着によるものであることを特徴とする、請求項2に記載のリチウム金属アノードの製造方法。
- 前記金属蒸着に使われる金属は銅またはニッケルであることを特徴とする、請求項12に記載のリチウム金属アノードの製造方法。
- 前記保護膜蒸着段階で使用できる保護膜は、有機物、無機物のうちの少なくとも1つを含む保護膜であることを特徴とする、請求項2に記載のリチウム金属アノードの製造方法。
- 前記有機物は、ポリエチレンオキシド系(PEO系)、シロキサン系、フォスファジン系高分子またはそれらの混合物であることを特徴とする、請求項14に記載のリチウム金属アノードの製造方法。
- 前記無機物は、窒化リチウム、炭酸リチウム、珪酸リチウム、ホウ酸リチウム、アルミン酸リチウム、リン酸リチウム、リン酸リチウムオキシ窒化物、珪素硫化リチウム、硫化ゲルマノイド・リチウム、酸化ランタン・リチウム、酸化チタン・リチウム、硫化ホウ素リチウム、硫化アルミノリチウム、硫化リン酸リチウムまたはそれらの混合物であることを特徴とする、請求項12または14に記載のリチウム金属アノードの製造方法。
- 前記前処理段階または保護膜蒸着段階後に、その表面にセパレータを付着させる段階をさらに含むことを特徴とする、請求項2に記載のリチウム金属アノードの製造方法。
- 請求項1〜17のうちいずれか1項に記載の方法により製造されたリチウム金属アノード。
- 集電体の背面にSiまたはFが含まれることを特徴とする、請求項18に記載のリチウム金属アノード。
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JP2003282142A (ja) | 2002-03-26 | 2003-10-03 | Matsushita Electric Ind Co Ltd | 薄膜積層体、薄膜電池、コンデンサ、及び薄膜積層体の製造方法と製造装置 |
JP2004311073A (ja) | 2003-04-02 | 2004-11-04 | Matsushita Electric Ind Co Ltd | 過電流保護機能付きエネルギーデバイス及びその製造方法 |
-
2003
- 2003-08-19 KR KR10-2003-0057282A patent/KR100496306B1/ko active IP Right Grant
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2004
- 2004-08-18 US US10/920,196 patent/US7629083B2/en active Active
- 2004-08-19 CN CNB2004100766958A patent/CN100544079C/zh not_active Expired - Lifetime
- 2004-08-19 JP JP2004239052A patent/JP4170966B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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CN1585163A (zh) | 2005-02-23 |
JP2005063978A (ja) | 2005-03-10 |
US20050079420A1 (en) | 2005-04-14 |
CN100544079C (zh) | 2009-09-23 |
KR20050019483A (ko) | 2005-03-03 |
US7629083B2 (en) | 2009-12-08 |
KR100496306B1 (ko) | 2005-06-17 |
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