WO2000077869A1 - Materiau actif pour plaque positive dans une cellule secondaire electrolytique et non aqueuse et cellule secondaire electrolytique non aqueuse comprenant ce materiau - Google Patents
Materiau actif pour plaque positive dans une cellule secondaire electrolytique et non aqueuse et cellule secondaire electrolytique non aqueuse comprenant ce materiau Download PDFInfo
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- WO2000077869A1 WO2000077869A1 PCT/JP2000/003847 JP0003847W WO0077869A1 WO 2000077869 A1 WO2000077869 A1 WO 2000077869A1 JP 0003847 W JP0003847 W JP 0003847W WO 0077869 A1 WO0077869 A1 WO 0077869A1
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- WIPO (PCT)
- Prior art keywords
- active material
- positive electrode
- secondary battery
- aqueous electrolyte
- electrolyte secondary
- Prior art date
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- 239000011149 active material Substances 0.000 title claims abstract description 7
- 239000011255 nonaqueous electrolyte Substances 0.000 claims abstract description 54
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 31
- 150000003624 transition metals Chemical class 0.000 claims abstract description 28
- 239000002905 metal composite material Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 239000007774 positive electrode material Substances 0.000 claims description 65
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 27
- 229910001416 lithium ion Inorganic materials 0.000 claims description 27
- 239000006182 cathode active material Substances 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 60
- 238000009826 distribution Methods 0.000 abstract description 19
- 238000007600 charging Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000011135 tin Substances 0.000 description 30
- 239000002131 composite material Substances 0.000 description 18
- 239000011230 binding agent Substances 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 239000006258 conductive agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003125 aqueous solvent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 6
- 239000011888 foil Substances 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000007773 negative electrode material Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 description 3
- 229910003002 lithium salt Inorganic materials 0.000 description 3
- 159000000002 lithium salts Chemical class 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- NVJUHMXYKCUMQA-UHFFFAOYSA-N 1-ethoxypropane Chemical compound CCCOCC NVJUHMXYKCUMQA-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910020598 Co Fe Inorganic materials 0.000 description 1
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002519 Co-Fe Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000219977 Vigna Species 0.000 description 1
- 235000010726 Vigna sinensis Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1228—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [MnO2]n-, e.g. LiMnO2, Li[MxMn1-x]O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Cobaltates
- C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
-
- 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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
-
- 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
- C01P2002/54—Solid solutions containing elements as dopants one element only
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—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
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a positive electrode active material comprising a Li-containing transition metal composite oxide used for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery using the same.
- a lithium ion secondary battery using a non-aqueous electrolyte containing a lithium salt is known.
- the lithium ion secondary battery, L i C o 0 2 and L i N i 0 2 L i containing transition metal composite oxide such as is used as the positive electrode active material.
- the negative electrode used is a non-aqueous electrolyte prepared by dissolving Lithium salts such as L i PF 6 and L i BF 4 used is carbonaceous material, and in a non-aqueous solvent.
- Lithium salts such as L i PF 6 and L i BF 4 used is carbonaceous material, and in a non-aqueous solvent.
- Such lithium ion secondary batteries are widely used as power sources for portable electronic devices.
- L i positive electrode active material such as C 00 2 and L i N i 0 2 is typically complex mixtures of oxide cobalt Ya oxide nickel and lithium carbonate and calcined at a temperature of about 900 ° C in air Obtained by oxidizing. Litho In rechargeable batteries, the positive electrode active material greatly affects battery performance and other factors. Therefore, in order to solve such manufacturing problems of improvement and a positive electrode active material of the battery performance, L i C o 0 2 and L i N i 0 2 various additive materials for the like have been proposed.
- JP ⁇ 62- 90863, A x M y N z 0 2 (A is L i of which the alkali metal element, M is C o, N i, transition metal elements such as Mn, N is A
- An active material represented by at least one element selected from the group consisting of 1, In and Sn, 0.05 ⁇ X ⁇ 1.10, 0.85 ⁇ y ⁇ 1.00, 0.001 ⁇ z ⁇ 0.10) is described.
- additives such as Al, In, and Sn are used to improve battery performance such as cycle characteristics.
- Japanese Patent Publication No. 63-121258 describes a positive electrode active material further added with Sc, Mn, Ti, Rb, Sr, B, P and the like.
- Japanese Patent Application Laid-Open No. 10-1316 discloses that a part of C 0 of Li Co 02 is B, Mg, S i,
- the particle size of the positive electrode active material in order to improve the rate characteristics, temperature characteristics, and the like of a lithium ion secondary battery, it is desirable that the particle size of the positive electrode active material be small.
- the particle size of the positive electrode active material is generally controlled by the firing temperature. Specifically, attempts have been made to reduce the particle size by firing at a temperature of about 800C.
- the cathode active material fired at a low temperature has a problem that the charge / discharge characteristics of the secondary battery and the like are deteriorated based on the fact that the reaction does not proceed sufficiently. This is because the L i C o 0 like 2 structure is not sufficiently growth by low-temperature firing. Furthermore, even cowpea to less than 1 L i / C 0 ratio L i C 00 2 active material, it is possible to miniaturize the grain size. Only However, in this case, sufficient crystallinity cannot be obtained as in the case of low-temperature sintering, so that the battery capacity / charge / discharge characteristics are reduced.
- An object of the present invention is to provide a positive electrode active material for a non-aqueous electrolyte secondary battery, which is capable of suppressing generation of gas while maintaining controllability of particle size (control of miniaturization).
- Another object of the present invention is to use such a positive electrode active material to improve battery characteristics such as charge / discharge characteristics and temperature characteristics and to prevent non-aqueous liquids from increasing in pressure inside the battery.
- An object of the present invention is to provide an electrolyte secondary battery. Disclosure of the invention
- a non-aqueous electrolyte secondary battery of the present invention includes a positive electrode containing the above-described positive electrode active material for a non-aqueous electrolyte secondary battery of the present invention, and a negative electrode disposed through the positive electrode and the separator. An electrode for accommodating the positive electrode, the separator and the negative electrode. A battery container; and a non-aqueous electrolyte filled in the battery container.
- the positive electrode active material for a non-aqueous electrolyte secondary battery of the present invention contains a very small amount of Sn (the range of o ⁇ z ⁇ . ⁇ as the value of z in the general formula).
- the L i C 0 0 2 positive active additives the particle size of the material may be finely controlled, such as, but several elements are known, in particular S n among these are polar additives traces It has been found that the effect can be sufficiently exhibited.
- the particle size of the positive electrode active material of the present invention containing a trace amount of Sn can be reduced by firing under ordinary conditions. Furthermore, a sharp particle size distribution is obtained. These make it possible to improve battery characteristics such as charge / discharge characteristics and temperature characteristics.
- FIG. 1 is a diagram showing a partial cross section of a structure of a lithium ion secondary battery as one embodiment of a nonaqueous electrolyte secondary battery of the present invention
- Figure 2 is a diagram showing the relationship between the Sn content in the positive electrode active material and the pressure inside the battery in a lithium ion secondary battery.
- FIG. 3 is a diagram showing the relationship between the Sn content in the positive electrode active material, its particle size, and the capacity retention of the lithium ion secondary battery.
- FIG. 1 is a partially sectional view showing a structure of an embodiment in which a nonaqueous electrolyte secondary battery of the present invention is applied to a lithium ion secondary battery.
- reference numeral 1 denotes a battery container (battery can) made of, for example, stainless steel.
- a battery container battery can
- an insulator 2 is arranged at the bottom of the battery case 1.
- the present invention is applicable to both cylindrical secondary batteries and square secondary batteries.
- the battery case 1 also serves as a negative electrode terminal, and the electrode group 3 is housed in such a battery case 1 as a power generation element.
- the electrode group 3 has a structure in which a band formed by laminating a positive electrode 4, a separator 5 and a negative electrode 6 in this order is wound, for example, in a spiral shape so that the negative electrode 6 is located outside.
- the electrode group 3 is not limited to the spiral type, and may be a plurality of the positive electrode 4, the separator 5, and the negative electrode 6 laminated in this order.
- the non-aqueous electrolyte is accommodated in the battery container 1 in which the electrode group 3 is accommodated.
- an insulating paper 7 having a central opening is placed above the electrode group 3 in the battery container 1.
- An insulating sealing plate 8 is arranged at an upper opening of the battery container 1. The insulating sealing plate 8 is liquid-tightly fixed to the battery container 1 by caulking inward the vicinity of the upper end of the battery container 1.
- a positive electrode terminal 9 is fitted to the center of the insulating sealing plate 8.
- One end of a positive electrode lead 10 is connected to the positive electrode terminal 9 via a safety valve 11.
- the other end of the positive electrode lead 10 is connected to the positive electrode 4.
- the negative electrode 6 is connected to a battery container 1 as a negative electrode terminal via a negative electrode lead (not shown).
- a lithium ion secondary battery 12 as a non-aqueous electrolyte secondary battery is configured.
- the positive electrode 4 is manufactured by suspending a positive electrode active material, a conductive agent, and a binder in an appropriate solvent, applying the suspension to a current collector, and drying to form a thin plate.
- a positive electrode active material for the positive electrode active material,
- M represents one element at least selected from transition metals, the number X, y and Z satisfying it it 0 ⁇ 9 ⁇ ⁇ ⁇ 1.15, 0.85 ⁇ y ⁇ 1.00 0 ⁇ Ku 0.001 Is
- the Li-containing transition metal composite oxide substantially represented by
- Li-containing transition metal composite oxide represented by the formula (1) various transition metals such as Co, Ni, Mn, Fe, and V can be used as the M element.
- the miniaturization of the particle size due to the trace amount of Sn can be obtained more effectively especially when Co is used as at least a part of the M element.
- the Li-containing transition metal composite oxide constituting the positive electrode active material has a general formula: L i x (C o i -a M ' a ) y Sn z 0 2 ... (2)
- M ′ represents at least l elements selected from Ni, Mn, Fe and V, and x, y, z and a represent ⁇ ⁇ 9 ⁇ ⁇ . ⁇ 5,
- the M element is particularly preferably a mixture of C0 and Ni. It is also effective to use at least one element selected from C 0 and Ni as the M element.
- Li-containing transition metal composite oxide substantially represented by New It can be said that such a Li-containing Co composite oxide is a preferable cathode active material from the viewpoint of battery capacity and the like.
- the x / y ratio is preferably 1 or more. If x / y ⁇ , sufficient crystallinity will not be obtained, and the cycle characteristics and battery capacity will decrease.
- the value of a in the formula (2) is in the range of a ⁇ , but is preferably in the range of ⁇ . ⁇ to ⁇ .5.
- the Li-containing transition metal composite oxide containing a trace amount of Sn can be refined in particle size by firing under ordinary conditions based on the trace amount of added Sn.
- the mixture obtained by mixing the starting materials (eg, oxides and carbonates) of the respective metal elements at a predetermined ratio is used, for example, in the atmosphere. when fired at about 900 ° C can also be achieved an average particle size by the effect of S n example of Io ⁇ m less (5 0% D value).
- the average particle diameter of the Li-containing transition metal composite oxide (cathode active material) is more preferably in the range of 3 to 8 m.
- the particle size distribution can be sharpened.
- 1% D value 0. 2 m or more L i containing transition metal composite oxide the% D value can be less than 50 m.
- the 1% D value of the Li-containing transition metal composite oxide is more preferably 0.4 / m or more, and the "% D value is more preferably 20 / m or less.
- the particle size distribution of the Li-containing transition metal composite oxide can be sharpened by the effect of adding Sn.
- the particle size is
- ultra-coarse grains exceeding 100 zm may cause the clogging of the electrode and the production failure at the time of electrode production. More than Coarse grains often do not appear in the particle size distribution. It is preferable to remove such super coarse particles by an operation such as sieving or classification.
- classification since sieving tends to cause clogging, it is preferable to apply classification using a difference in resistance based on the particle size or density of particles.
- classification is based on the fact that the resistance of particles to physical forces such as gravity, inertia, and centrifugal force depends on their particle size and density.
- the average particle diameter referred to in the present invention (50% D value), the particle size of the particles by measuring the particle size distribution in the micro-track method, reaching 50% by integrating the volume of the particle diameter is small Shall be shown.
- the i% D value is the particle size when the volume of the particles reaches 1%
- the% D value is the particle size when the volume of the particles reaches%. It shows.
- the measurement of the particle size distribution shall be performed as follows. That is, the particle size distribution is measured using MICROTRAC II PART I CLE-SISE ANALYZER manufactured by LEEDS & NORTHRUP. This utilizes the light scattering phenomenon that occurs when laser light is applied to particles as a measurement principle. Since the intensity and the scattering angle of the scattered light greatly depend on the size of the particles, the intensity and the scattering angle of the scattered light are measured by an optical detector, and the resulting particles are subjected to a combinatorial process to obtain a particle size distribution. can get.
- the charge / discharge characteristics and temperature characteristics of the lithium ion secondary battery 12 are improved.
- the low-temperature characteristics of the lithium ion secondary battery 12 are strongly affected by the particle size of the positive electrode active material.
- a low temperature e.g., - 2 o C
- the Li-containing transition metal composite oxide represented by the formula (1) has a very small Sn content, gas generation in the lithium ion secondary battery 12 can be minimized. it can. This is considered to be because the gasification of the electrolytic solution by the catalytic action of Sn is suppressed by making the Sn content extremely small.
- the positive electrode active material of the present invention has found that the effect of reducing the particle size can be achieved with an extremely small amount of Sn, and based on this, it is possible to reduce Sn within a range in which gas generation and the like can be suppressed as much as possible. It was included. For this reason, the Sn content is set to less than 0.001 as the value of z in the above equation (1). When the value of z exceeds Q.001, the catalytic action of Sn described above becomes active, and gasification of the non-aqueous electrolyte is promoted, which causes an increase in the internal pressure of the battery.
- the value of z in equation (1) may be o ⁇ z.
- the value of Z is preferably 0.00001 or more. That is, the value of z in the formula is ⁇ . ⁇ ⁇
- Z is in the range of 0.001 and particularly in the range of O.OOl ⁇ z and 0.001.
- conductive agent Various materials conventionally used for nonaqueous electrolyte secondary batteries can be used as the conductive agent and the binder which are mixed with the above-described positive electrode active material to form a positive electrode mixture.
- Acetylene black, carbon black, graphite and the like are used as the conductive agent.
- binder borotetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene-propylene-one-gen copolymer (EPDM), styrene-butadiene rubber (SBR) and the like are used.
- PTFE polyvinylidene fluoride
- EPDM ethylene-propylene-one-gen copolymer
- SBR styrene-butadiene rubber
- the mixing ratio of the positive electrode active material, the conductive agent and the binder is preferably in the range of 80 to 95% by mass of the positive electrode active material, 3 to 20% by mass of the conductive agent, and 2 to 7% by mass of the binder.
- the current collector to which the suspension containing the positive electrode active material, the conductive agent and the binder is applied and dried for example, an aluminum foil, a stainless steel foil, a nickel foil or the like is used.
- non-aqueous electrolyte secondary batteries can also be applied to other battery components such as Separation 5, negative electrode 6, and non-aqueous electrolyte.
- separator 5 a synthetic resin nonwoven fabric, a polyethylene porous film, a polypropylene porous film, or the like is used as the separator 5.
- the negative electrode 6 is manufactured by suspending a negative electrode active material and a binder in an appropriate solvent, applying the suspension to a current collector, and drying the current collector to form a thin plate.
- negative electrode active materials include pyrolytic carbon, pitch coke, graphite, glassy carbon, phenolic resin and furan resin, which can occlude and release lithium ions.
- Carbon materials such as fired organic polymer compounds, carbon fibers and activated carbon, lithium alloys such as lithium metal and Li-A1 alloy, and polymers such as polyacetylene and polyvirol are used.
- the same binder as used for the positive electrode 5 is used.
- the compounding ratio of the negative electrode active material and the binder is preferably in the range of 90 to 95% by mass of the negative electrode active material and 2 to 10% by mass of the binder.
- a foil such as copper, stainless steel, and nickel, a mesh, a nonmetal, a lath metal, and the like are used.
- a non-aqueous electrolyte is prepared by dissolving an electrolyte in a non-aqueous solvent.
- a non-aqueous solvent for example, various non-aqueous solvents known as solvents for lithium ion secondary batteries can be used.
- Non-aqueous solvent for non-aqueous electrolyte is Although not particularly limited, for example, propylene carbonate, ethylene carbonate, and the like, dimethyl carbonate, methylethyl carbonate, getylcapone, arbutyrrolactone, 1,2-dimethylmethoxyethane, 1,2-jetoxetane And a mixed solvent with ethoxymethoxetane or the like.
- a lithium salt such as L i PF 6, L i BF 4 L i C 10 4, L iAs F 6, L i CF 3 S 0 3 is illustrated.
- Dissolution amount in the non-aqueous solvent such electrolyte is preferably in a range of 0. 5 ⁇ 1.5m O l / L (liter).
- the lithium ion secondary battery 12 to which the present invention is applied as described above excellent battery capacity, excellent charge / discharge characteristics, and excellent temperature are obtained based on the fine particle size of the positive electrode active material and the sharp particle size distribution. Characteristics (especially low-temperature characteristics) are obtained. In addition, since gas generation in the battery can be suppressed as much as possible, it is possible to prevent an increase in battery pressure due to gas generation. That is, safety and quality can be improved.
- cobalt oxide, lithium carbonate, and tin oxide were mixed at a predetermined ratio, and calcined in air at 900 ° C for 5 hours to synthesize a composite oxide as a positive electrode active material.
- Lately composite oxide was boss measured by powder X-ray diffraction method by C uK shed lines, L i C o 0 2 Tohopo matching results.
- the composition of the obtained composite oxide was analyzed in the manner described below, and it was confirmed that the composite oxide had a composition of Li 1.05Co iS ⁇ 0 . ⁇ 3 ⁇ 2 .
- C 0 was determined by decomposing a sample with hydrochloric acid, adding an EDTA solution, and performing a back titration using a zinc solution. Li and Sn were quantified by digesting the sample with hydrochloric acid and performing an ICP measurement. Further, the average particle diameter (5 0% D value) of the composite oxide (positive electrode active material) is 3. was 4 5 ⁇ M. The 1% D value was 0.5 im and the 99% D value was 11 ⁇ m. The particle size distribution and each D value based on the particle size distribution were measured according to the method described above.
- Specific measurement conditions are as follows. First, 0.5 g of a sample is collected and stirred in 100 mL of water, and ultrasonic dispersion is performed at 100 W for 3 min. The particle size distribution of this suspension was measured using a MICROTRAC II PART I CLE-SISE ANALYZER TYPE 997-10 manufactured by LEEDS & NORTHRUP. Find the value for each.
- a positive electrode mixture was prepared by mixing 90% by mass, 6% by mass of graphite as a conductive agent, and 4% by mass of polyvinylidene fluoride as a binder. This positive electrode mixture was dispersed in N-methylile-2-pyrrolidone to form a slurry, which was applied to an aluminum foil and dried. This was compression molded with a roller-one press. The obtained compression molded body was cut into a predetermined size to obtain a sheet-like positive electrode.
- the mass of this positive electrode was measured, and the mass of the positive electrode active material used was calculated by subtracting the weight of the conductive material, the binder, the aluminum foil, and the like. The result was log. In Examples 2 to 18 and Comparative Examples 1 to 5 shown below, the mass of the positive electrode active material was log.
- a negative electrode mixture 93% by mass of a carbon material and 7 % by mass of polyvinylidene fluoride as a binder were mixed to prepare a negative electrode mixture.
- a sheet-like negative electrode was produced in the same manner as the positive electrode except that this negative electrode mixture was used.
- the above-described sheet-shaped positive electrode and the separator composed of the microporous polyethylene film and the sheet-shaped negative electrode are laminated in this order, and this laminate is spirally wound so that the negative electrode is located outside.
- an electrode group was produced.
- This A lead was attached to the electrode group of, and housed in a bottomed cylindrical battery container (battery can). Furthermore, a non-aqueous electrolyte was injected into the battery container, and then sealed, thereby assembling a cylindrical lithium ion secondary battery.
- the nonaqueous ⁇ Kaieki is ethylene carbonate and Mechiruechiruka one Boneto 1: 1 mixed-solvent, was prepared by dissolving L i PF 6 at a concentration of I mol / L.
- the pressure in the battery was measured as follows.
- the battery used for measuring the internal pressure of the battery was equipped with a pressure gauge in advance so that the pressure inside the container (can) could be measured.
- Under the environment of 20 ° C set a current limit of 1A, perform a constant voltage charge of 4.2V for 5 hours, put it in an environment of 85 ° C, leave it for 24 hours, return it to the environment of 20 ° C, The internal pressure when the battery temperature reached 20 ° C was measured.
- Composite oxides as positive electrode active materials were synthesized in the same manner as in Example 1 except that the mixing ratio of each starting material of the positive electrode active material was changed. These and was measured by powder X-ray diffraction method by CuK shed line of each composite oxide rollers, was almost the same as L i C 00 2. Also, the composition of the obtained composite oxide The analysis and the measurement of the particle size distribution were performed in the same manner as in Example 1. Table 1 shows these results.
- Example 1 sheet-like positive electrodes were manufactured in the same manner as in Example 1. Further, using these sheet-shaped positive electrodes, cylindrical lithium ion secondary batteries were assembled in the same manner as in Example 1. The low-temperature characteristics and the internal pressure of each of the cylindrical lithium-ion secondary batteries produced in this manner were measured and evaluated in the same manner as in Example 1. The results of these measurements are shown in Table 1 and Figures 2 and 3.
- Composite oxides as positive electrode active materials were synthesized in the same manner as in Example 1 except that the mixing ratio of each starting material of the positive electrode active material was changed. Each of these composite oxides has a Sn content outside the scope of the present invention. The composition analysis and the particle size distribution of the obtained composite oxide were measured in the same manner as in Example 1. The results are shown in Table 1.
- Example 1 sheet-like positive electrodes were manufactured in the same manner as in Example 1. Further, using these sheet-shaped positive electrodes, cylindrical lithium ion secondary batteries were assembled in the same manner as in Example 1. The low-temperature characteristics and the internal pressure of each of the cylindrical lithium ion secondary batteries produced in this manner were measured and evaluated in the same manner as in Example 1. The results of these measurements are shown in Table 1 and Figures 2 and 3.
- the pressure in the battery becomes larger than the atmospheric pressure. If the internal pressure of the battery increases, the battery may be broken in some cases.
- the material of the battery can depending like the thickness of the can, the battery internal pressure is not to desirable or less 1.27Xl0 5 Pa. Each lithium ion secondary battery according to Examples 1 to 10 all satisfies this condition.
- the positive electrode active material contained in a range of less than 0.001 has a small particle size and a sharp particle size distribution, which indicates that the low temperature characteristics and the like of the lithium ion secondary battery are improved.
- the content of S n is preferably in the range of ⁇ . ⁇ ⁇ ⁇ Ku 0.001 as the value of z, further 0.0001 ⁇ Z ⁇ 0.001 for It is understood that it is desirable to set the range.
- cobalt oxide, nickel oxide, iron oxide, lithium carbonate and tin oxide are appropriately used, and these are mixed at a predetermined ratio.
- composite oxides were each synthesized as a positive electrode active material in the same manner as in Example 1.
- the composition of the M element is as shown in Table 2.
- Composition analysis and measurement of particle size distribution of the obtained composite oxide was carried out in the same manner as in Example 1.
- Table 2 shows the results. Note that Comparative Examples 7 to 10 are all positive electrode active materials containing no Sn.
- Example 2 sheet-like positive electrodes were manufactured in the same manner as in Example 1. Further, using these sheet-shaped positive electrodes, cylindrical lithium ion secondary batteries were assembled in the same manner as in Example 1. The low-temperature characteristics and the internal pressure of each of the cylindrical lithium-ion secondary batteries produced in this manner were measured and evaluated in the same manner as in Example 1. Table 2 shows the measurement results.
- the positive electrode active material for a non-aqueous electrolyte secondary battery of the present invention is excellent in controllability of particle size (miniaturization and sharpening of particle size distribution), and further suppresses gas generation due to gasification of the non-aqueous electrolyte. What you get.
- the nonaqueous electrolyte secondary battery of the present invention using such a positive electrode active material it is possible to improve battery characteristics such as charge / discharge characteristics and temperature characteristics, and to suppress an increase in battery internal pressure. It is possible.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00937215A EP1202363A1 (en) | 1999-06-14 | 2000-06-14 | Positive plate active material for nonaqueous electrolytic secondary cell and nonaqueous electrolytic secondary cell containing the same |
CA002376775A CA2376775A1 (en) | 1999-06-14 | 2000-06-14 | Positive plate active material for nonaqueous electrolytic secondary cell and nonaqueous electrolytic secondary cell containing the same |
JP2001504025A JP3696159B2 (ja) | 1999-06-14 | 2000-06-14 | 非水電解液二次電池用正極活物質およびそれを用いた非水電解液二次電池 |
US10/009,561 US6686093B1 (en) | 1999-06-14 | 2000-06-14 | Positive electrode active material for nonaqueous electrolytic solution secondary battery and nonaqueous electrolytic solution secondary battery therewith |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP16752699 | 1999-06-14 | ||
JP11/167526 | 1999-06-14 |
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WO2000077869A1 true WO2000077869A1 (fr) | 2000-12-21 |
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PCT/JP2000/003847 WO2000077869A1 (fr) | 1999-06-14 | 2000-06-14 | Materiau actif pour plaque positive dans une cellule secondaire electrolytique et non aqueuse et cellule secondaire electrolytique non aqueuse comprenant ce materiau |
Country Status (7)
Country | Link |
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US (1) | US6686093B1 (ja) |
EP (1) | EP1202363A1 (ja) |
JP (1) | JP3696159B2 (ja) |
KR (1) | KR100433592B1 (ja) |
CN (1) | CN1199304C (ja) |
CA (1) | CA2376775A1 (ja) |
WO (1) | WO2000077869A1 (ja) |
Cited By (3)
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JP2002208401A (ja) * | 2001-01-09 | 2002-07-26 | Toshiba Electronic Engineering Corp | 正極活物質,その製造方法および非水電解液二次電池 |
JP2015041582A (ja) * | 2013-08-23 | 2015-03-02 | 日本電気株式会社 | リチウム鉄マンガン系複合酸化物およびそれを用いたリチウムイオン二次電池 |
JPWO2015170561A1 (ja) * | 2014-05-07 | 2017-04-20 | エリーパワー株式会社 | 非水電解質二次電池用正極、非水電解質二次電池 |
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US20080241536A1 (en) | 2007-03-29 | 2008-10-02 | Weyerhaeuser Co. | Method for processing cellulose in ionic liquids and fibers therefrom |
DE102012204170A1 (de) | 2012-03-16 | 2013-09-19 | Siemens Aktiengesellschaft | Speicherstruktur einer elektrischen Energiespeicherzelle |
JP6229657B2 (ja) * | 2012-09-11 | 2017-11-15 | 株式会社Gsユアサ | 非水電解質二次電池 |
CN105576205A (zh) * | 2015-12-21 | 2016-05-11 | 宁波高新区锦众信息科技有限公司 | 一种锂离子电池用碳包覆硅酸锰锂复合材料的制备方法 |
KR20230095278A (ko) * | 2021-12-22 | 2023-06-29 | 포스코홀딩스 주식회사 | 리튬 이차 전지용 음극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지 |
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EP0205856A2 (en) * | 1985-05-10 | 1986-12-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Secondary battery |
JPH10241691A (ja) * | 1996-12-24 | 1998-09-11 | Hitachi Ltd | 電 池 |
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JPH1140154A (ja) * | 1997-07-18 | 1999-02-12 | Hitachi Ltd | 電極及びこれを用いた電池 |
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JPS6290863A (ja) | 1985-05-10 | 1987-04-25 | Asahi Chem Ind Co Ltd | 二次電池 |
JP2704841B2 (ja) * | 1985-05-10 | 1998-01-26 | 旭化成工業株式会社 | 二次電池 |
JP2547992B2 (ja) * | 1986-11-08 | 1996-10-30 | 旭化成工業株式会社 | 非水系二次電池 |
JP3079382B2 (ja) * | 1990-05-17 | 2000-08-21 | 旭化成工業株式会社 | 非水系二次電池 |
JP3046055B2 (ja) * | 1990-10-26 | 2000-05-29 | 旭化成工業株式会社 | 非水系二次電池 |
JPH101316A (ja) | 1996-06-10 | 1998-01-06 | Sakai Chem Ind Co Ltd | リチウムコバルト複合酸化物及びその製造方法並びにリチウムイオン二次電池 |
JPH10241601A (ja) * | 1997-02-28 | 1998-09-11 | Hitachi Ltd | 偏向ヨーク及びディスプレイ装置 |
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2000
- 2000-06-14 KR KR10-2001-7015704A patent/KR100433592B1/ko active IP Right Grant
- 2000-06-14 WO PCT/JP2000/003847 patent/WO2000077869A1/ja active IP Right Grant
- 2000-06-14 US US10/009,561 patent/US6686093B1/en not_active Expired - Lifetime
- 2000-06-14 CA CA002376775A patent/CA2376775A1/en not_active Abandoned
- 2000-06-14 EP EP00937215A patent/EP1202363A1/en not_active Withdrawn
- 2000-06-14 JP JP2001504025A patent/JP3696159B2/ja not_active Expired - Lifetime
- 2000-06-14 CN CNB008089167A patent/CN1199304C/zh not_active Expired - Lifetime
Patent Citations (4)
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EP0205856A2 (en) * | 1985-05-10 | 1986-12-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Secondary battery |
JPH10241691A (ja) * | 1996-12-24 | 1998-09-11 | Hitachi Ltd | 電 池 |
JPH1140154A (ja) * | 1997-07-18 | 1999-02-12 | Hitachi Ltd | 電極及びこれを用いた電池 |
JPH1140140A (ja) * | 1997-07-23 | 1999-02-12 | Asahi Chem Ind Co Ltd | 非水系二次電池 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002208401A (ja) * | 2001-01-09 | 2002-07-26 | Toshiba Electronic Engineering Corp | 正極活物質,その製造方法および非水電解液二次電池 |
JP2015041582A (ja) * | 2013-08-23 | 2015-03-02 | 日本電気株式会社 | リチウム鉄マンガン系複合酸化物およびそれを用いたリチウムイオン二次電池 |
JPWO2015170561A1 (ja) * | 2014-05-07 | 2017-04-20 | エリーパワー株式会社 | 非水電解質二次電池用正極、非水電解質二次電池 |
Also Published As
Publication number | Publication date |
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CN1355941A (zh) | 2002-06-26 |
CA2376775A1 (en) | 2000-12-21 |
KR100433592B1 (ko) | 2004-05-31 |
KR20020012257A (ko) | 2002-02-15 |
CN1199304C (zh) | 2005-04-27 |
EP1202363A1 (en) | 2002-05-02 |
JP3696159B2 (ja) | 2005-09-14 |
US6686093B1 (en) | 2004-02-03 |
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