WO2004030124A1 - 電池用正極活物質並びにその製造方法及びそれを用いた電池 - Google Patents
電池用正極活物質並びにその製造方法及びそれを用いた電池 Download PDFInfo
- Publication number
- WO2004030124A1 WO2004030124A1 PCT/JP2003/006377 JP0306377W WO2004030124A1 WO 2004030124 A1 WO2004030124 A1 WO 2004030124A1 JP 0306377 W JP0306377 W JP 0306377W WO 2004030124 A1 WO2004030124 A1 WO 2004030124A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- positive electrode
- electrode active
- active material
- titanium
- Prior art date
Links
- 239000013543 active substance Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 84
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 45
- 239000010936 titanium Substances 0.000 claims abstract description 45
- 239000011777 magnesium Substances 0.000 claims abstract description 38
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 38
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007774 positive electrode material Substances 0.000 claims description 103
- 238000004519 manufacturing process Methods 0.000 claims description 32
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 30
- 238000005868 electrolysis reaction Methods 0.000 claims description 23
- 239000003792 electrolyte Substances 0.000 claims description 23
- 239000008151 electrolyte solution Substances 0.000 claims description 22
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 18
- 229940099596 manganese sulfate Drugs 0.000 claims description 17
- 239000011702 manganese sulphate Substances 0.000 claims description 17
- 235000007079 manganese sulphate Nutrition 0.000 claims description 17
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 17
- 239000002244 precipitate Substances 0.000 claims description 16
- 150000003609 titanium compounds Chemical class 0.000 claims description 12
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 9
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 9
- QDZRBIRIPNZRSG-UHFFFAOYSA-N titanium nitrate Chemical compound [O-][N+](=O)O[Ti](O[N+]([O-])=O)(O[N+]([O-])=O)O[N+]([O-])=O QDZRBIRIPNZRSG-UHFFFAOYSA-N 0.000 claims description 6
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 5
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 5
- 229940126062 Compound A Drugs 0.000 claims 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims 1
- 150000003608 titanium Chemical class 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 41
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 39
- 229910052744 lithium Inorganic materials 0.000 description 39
- 229910052748 manganese Inorganic materials 0.000 description 32
- 239000011572 manganese Substances 0.000 description 32
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 27
- 238000010304 firing Methods 0.000 description 17
- 238000012360 testing method Methods 0.000 description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 239000007773 negative electrode material Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 229910003002 lithium salt Inorganic materials 0.000 description 5
- 159000000002 lithium salts Chemical class 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- -1 hydrazine compound Chemical class 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/36—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
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/06—Electrolytic coating other than with metals with inorganic materials by anodic processes
-
- 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
-
- 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
-
- 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
-
- 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
Definitions
- the present invention relates to a positive electrode active material for a battery containing manganese diacid as a main component, a method for producing the same, and a battery using the same.
- manganese dioxide As a positive electrode active material for batteries such as manganese batteries, alkaline manganese batteries, and lithium batteries, manganese dioxide has been conventionally used as a typical material. Manganese dioxide used in such a positive electrode active material for batteries is produced by electrolytic deposition of an electrolytic solution containing manganese sulfate and sulfuric acid, but various improvements have been made to improve performance. Has been done.
- Japanese Patent Application Laid-Open No. 2-57673 discloses that manganese dioxide having a higher specific surface area can be produced by electrolyzing an electrolytic solution containing manganese sulfate, sulfuric acid, and phosphoric acid. Has been described.
- Japanese Patent Application Laid-Open No. 5-21062 discloses that an electrolytic solution containing manganese sulfate, sulfuric acid, and an ammonium salt is electrolyzed to obtain an ⁇ -type manganese dioxide containing ammonia. It is described that the discharge capacity of a battery can be increased by neutralizing with a lithium salt aqueous solution or by mixing a lithium salt and using the mixture as a positive electrode active material of a lithium secondary battery.
- Japanese Patent No. 3065630 discloses that manganese dioxide obtained by electrolysis or the like is reduced with a hydrazine compound and immersed in a lithium salt aqueous solution to form a positive electrode active material of a lithium secondary battery. It is described that the reproducibility of the charge / discharge cycle of the battery can be improved by using it.
- U.S. Patent No. 5,344,712 discloses manganese dioxide.
- JP2003 / 006377 describes that the life of a battery can be improved by mixing anatase titanium oxide and graphite with a mechanical mixer and using the mixture as a positive electrode active material of the battery. Disclosure of the invention
- the present invention provides a positive electrode active material for a battery and a method for producing the same, which can achieve higher performance such as pulse characteristics by increasing the specific surface area as much as possible and further increasing the reaction area. And a battery using the same.
- the positive electrode active material for a battery according to the first invention is a positive electrode active material for a battery mainly containing manganese dioxide, and is characterized by containing 5 to 400 ppm of magnesium.
- the positive electrode active material for a battery according to the second invention is characterized in that, in the first invention, the specific surface area is 10 to 65 m 2 / g. ⁇ - ⁇
- the positive electrode active material for a battery according to the third invention is the deposit according to the first or second invention, which is formed by electrolysis of an electrolytic solution containing manganese sulfate, sulfuric acid, and magnesium sulfate. I do.
- the positive electrode active material for a battery according to a fourth aspect is the third aspect, wherein the concentration of magnesium in the electrolytic solution is 0.1 to 40 gZL.
- the positive electrode active material for a battery according to the fifth invention is a cathode active material for a battery as a main component of manganese dioxide, characterized by 0.0 0 1 to 3.0 wt 0/0 containing titanium .
- the positive electrode active material for a battery according to a sixth aspect is the fifth aspect, wherein the specific surface area is 40 to 150 m 2 / g.
- the positive electrode active material for a battery according to the seventh invention is the deposit according to the fifth or sixth invention, which is formed by electrolysis of an electrolytic solution containing manganese sulfate, sulfuric acid, and a titanium compound. I do.
- the positive electrode active material for a battery according to the eighth invention is characterized in that, in any of the third, fourth, and seventh inventions, the precipitate is calcined.
- a method for producing a battery positive electrode active material according to a ninth invention is a method for producing a battery positive electrode active material containing manganese dioxide as a main component, comprising: an electrolytic solution containing manganese sulfate, sulfuric acid, and magnesium sulfate. Is electrolyzed to generate a precipitate.
- a method for producing a positive electrode active material for a battery according to a tenth invention is characterized in that, in the ninth invention, the concentration of magnesium in the positive electrode active material for a battery is 5 to 400 p: m.
- a method for producing a positive electrode active material for a battery according to a twelfth invention is the method according to any one of the ninth to eleventh inventions, wherein the concentration of magnesium in the electrolyte is 0.1 to 40 g ZL.
- a method for producing a positive electrode active material for a battery according to a thirteenth invention is a method for producing a positive electrode active material for a battery comprising manganese dioxide as a main component, the electrolytic solution comprising manganese sulfate, sulfuric acid, and a titanium compound. Is electrolyzed to generate a precipitate.
- a method for producing a positive electrode active material for a battery according to a fourteenth aspect is the thirteenth aspect, wherein the titanium compound is at least one selected from the group consisting of titanium sulfate, titanium nitrate, and titanium chloride.
- the method for producing a positive electrode active material for a battery according to a fifteenth invention in the thirteenth or fourteenth invention, the concentration of titanium in the positive electrode active material in a battery 0.0 0 1 to 3.0 weight 0 / A value of 0 is a special feature.
- the method for producing a positive electrode active material for a battery according to the sixteenth invention is directed to the thirteenth to fifteenth inventions.
- the specific surface area of the positive electrode active material for a battery is set to 40 to 15 OrnVg.
- a method for producing a positive electrode active material for a battery according to a seventeenth invention is characterized in that, in any one of the ninth to sixteenth inventions, the produced precipitate is calcined.
- a battery according to an eighteenth invention is characterized in that it uses the positive electrode active material for a battery according to any one of the first to eighth inventions.
- FIG. 1 is a sectional view of an embodiment of a lithium primary battery according to the present invention.
- FIG. 2 is a sectional view of an embodiment of the alkaline manganese battery according to the present invention.
- FIG. 3 is a graph showing the measurement results of X-ray diffraction of the specimen No. 2 and the comparative specimen No. 3 before firing.
- Embodiments of a positive electrode active material for a battery according to the present invention, a method for producing the same, and a battery using the same will be described below, but the present invention is not limited to the following embodiments.
- the positive electrode active material for batteries according to the present invention is a positive electrode active material for batteries containing manganese dioxide as a main component and containing magnesium.
- the positive electrode active material for a battery according to the present invention is manganese dioxide with electrical conductivity produced by an electrolysis method and contains magnesium when produced by electrolysis.
- magnesium is not added to manganese dioxide produced by electrolysis, but magnesium is physically contained inside manganese dioxide during electrolysis. More specifically, for example, manganese dioxide containing magnesium in a state where magnesium is not removed even when washed with diluted sulfuric acid or the like cannot be confirmed. man Suspected to be cancer.
- the content of magnesium is preferably from 5 to 400 ppm.
- the reason is that if the magnesium content is less than 5 ppm, the pulse characteristics and the like cannot be remarkably improved, and if the magnesium content exceeds 400 ⁇ , the pulse characteristics and the like deteriorate. Because.
- the above-mentioned positive electrode active material for a battery has a specific surface area of 10 to 6 It is preferable that Because the specific surface area is 1 If the specific surface area is smaller than 65 m 2 / g, the amount of gas generated will increase.
- the positive electrode active material for a battery as described above can be obtained by electrolyzing an electrolytic solution containing manganese sulfate, sulfuric acid, and magnesium sulfate to generate a precipitate.
- manganese dioxide containing magnesium integrally therein can be easily produced.
- the concentration of magnesium in the electrolyte is preferably 0.1 to 40 gZL. This is because if the concentration of magnesium in the electrolyte is outside the above range, it becomes difficult to make the amount of magnesium integrally contained in manganese dioxide in the range of 5 to 400 ppm. It is.
- conditions for electrolysis may be general conditions conventionally applied.
- the manganese concentration in the electrolyte is 20 to 50 g / L
- the sulfuric acid concentration in the electrolyte is 30 to 80 g / L
- titanium or the like is used for the anode
- carbon or the like is used for the cathode.
- the replenishing method of magnesium sulfate to the electrolytic solution the magnesium sulfate was dissolved in the electrolyte
- the state is not particularly limited as long as it is in a state, and examples thereof include a method of dissolving and adding to a manganese sulfate solution to be replenished into an electrolytic solution.
- a positive electrode active material suitable for use in a lithium battery can be obtained.
- the firing conditions are particularly limited However, if heat treatment is performed at a temperature of 300 to 470 ° C. for about 1 to 5 hours, for example, a positive electrode active material suitable for a lithium battery can be obtained.
- the positive electrode active material for a battery manufactured as described above has a magnesium concentration of 5 to 400 ppm and a specific surface area of 10 to 65 m 2 / g. Batteries using substances can exhibit high-performance pulse characteristics and the like. .
- an alkaline manganese battery using the above-described battery positive electrode active material has a higher manganese dioxide content, which does not contain magnesium at a concentration of 5 to 400 ppm, than an alkaline lithium manganese battery that uses manganese dioxide as the battery positive electrode active material. Since pulse characteristics and the like can be improved by about 3 to 10%, it can be suitably used for digital cameras and the like.
- the lithium battery using the above-mentioned battery positive electrode active material is compared with a lithium battery using magnesium oxide containing no magnesium at a concentration of 5 to 400 ppm as the battery positive electrode active material. Since the pulse characteristics at low temperatures can be improved by about 5 to 10%, it can be suitably used even in a low-temperature environment such as a cold region. It is possible to improve the pulse characteristics at high temperatures by about 10 to 20 ° / 0, so that it is suitable even when used under high temperature conditions such as for automobiles. Can be used for ⁇
- the negative electrode active material used in the battery is not particularly limited, and may be a general one that has been conventionally applied.
- a manganese battery or an alkaline manganese battery zinc or the like may be used.
- lithium or the like lithium or the like can be used.
- the electrolyte used for the battery is not particularly limited and may be a general electrolyte conventionally used.
- a manganese battery zinc chloride, ammonium chloride, etc.
- potassium hydroxide or the like can be used.
- an organic solvent solution of a lithium salt or the like can be used.
- the battery positive electrode active material according to the present invention is a battery positive electrode active material containing manganese dioxide as a main component and containing titanium.
- the positive electrode active material for a battery according to the present invention is electrolytic manganese dioxide produced by an electrolytic method, which contains titanium when produced by electrolysis.
- titanium is not added to the manganese dioxide produced by electrolysis, but titanium is contained in the manganese dioxide during electrolysis. More specifically, for example, manganese dioxide containing titanium in a state where titanium peaks cannot be detected by X-ray diffraction measurement, and manganese dioxide in which titanium is integrally dissolved. It has been speculated.
- the content of titanium is preferably from 0.001 to 3.0% by weight. If the titanium content is less than 0.001% by weight, the specific surface area cannot be remarkably improved, and if the titanium content is more than 3.0% by weight, the specific surface area decreases. Because it will do. ⁇
- the positive electrode active material for a battery preferably has a specific surface area of 40 to 150 ra 2 Z g. If the specific surface area is smaller than 4 O m 2 / g, the pulse characteristics cannot be remarkably improved, and if the specific surface area is larger than 15 O m S / g, the amount of generated gas is large. Because it becomes.
- the positive electrode active material for a battery as described above can be obtained by electrolyzing an electrolytic solution containing manganese sulfate, sulfuric acid, and a titanium compound to generate a precipitate.
- manganese dioxide containing titanium integrally therein can be easily produced.
- the titanium compound include titanium sulfate, titanium nitrate, titanium chloride and the like.
- the amount of the titanium compound in the electrolytic solution is adjusted so that the content of titanium in the precipitate is 0.001 to 3.0 wt / 0 .
- Other conditions for electrolysis may be general conditions conventionally applied, as described above.
- the method of replenishing the titanium compound in the electrolyte is not particularly limited as long as the titanium compound is dissolved in the electrolyte.
- a manganese sulfate solution to be replenished in the electrolyte is used. And adding it after dissolving it.
- the precipitate thus obtained When the precipitate thus obtained is calcined and dehydrated, it can be used as a positive electrode active material particularly preferable for use in a lithium battery.
- the sintering conditions are not particularly limited.For example, heat treatment at a temperature of 350 to 470 ° C. for about 1 to 5 hours can provide a positive electrode active material suitable for a lithium battery. Can be.
- the positive electrode active material for a battery manufactured as described above has a titanium content of 0.001 to 3.0% by weight and a specific surface area of 40 to 15 Om 2 / g. Therefore, a battery using the positive electrode active material for a battery can exhibit high-performance pulse characteristics and the like.
- Al-manganese batteries using the above-mentioned battery positive electrode active material have a pulse characteristic of about 10 to 20% compared to alkaline manganese batteries using manganese dioxide containing no titanium as the battery positive electrode active material. Since it can be improved, it can be suitably used for digital cameras and the like.
- the lithium battery using the above-mentioned battery positive electrode active material has 10 to 25% lower pulse characteristics at low temperature than the lithium battery using manganese dioxide containing no titanium as the battery positive electrode active material. It can be used suitably even in cold regions, etc., and can improve pulse characteristics at high temperatures by about 5 to 15%. Even when used under the following conditions, it can be suitably used.
- the negative electrode active material used in the above battery is not particularly limited, and may be a general one that has been conventionally applied.
- a manganese battery or an alkaline manganese battery zinc is used.
- a lithium battery lithium or the like can be used.
- the Q is not particularly limited and may be a general one that has been conventionally applied.
- zinc chloride, ammonium chloride, or the like can be used.
- potassium hydroxide or the like can be used.
- an organic solvent solution of a lithium salt or the like can be used.
- the positive electrode active material for a battery according to the present invention a method for producing the same, and examples performed for confirming the effects of the battery using the same will be described below, but the present invention is not limited to the following examples. Absent.
- a heating device is provided in a beaker (5 liters), and the anode (titanium plate) and the cathode (black bell) are alternately suspended, and a tube for introducing the electrolytic solution (manganese sulfate) is placed at the bottom of the beaker.
- the electrolytic solution manganese sulfate
- test pieces A1 to A5 and the comparative pieces A1 to A4 were fired in an electric furnace at a temperature shown in Table 1 below for 3 hours. ⁇ table 1 ⁇
- A4 200 5 5 As can be seen from Table 2, in test samples No. 1 to No. 5 (magnesium sulfate concentration during electrolysis: 0.1 to 40 g / L, firing temperature: 300 to 470 ° C), the magnesium content was low. The specific surface area was 5 to 400 ppm, and the specific surface area was 10 to 65 m 2 / g. On the other hand, in Comparative A1 to A4 (magnesium sulfate concentration during electrolysis: less than 0.1 g ZL or more than 40 g / L, firing temperature: less than 300 ° C or more than 470 ° C), At least one of the content and the specific surface area was out of the above range for the test pieces A1 to A5.
- Alkaline manganese batteries (model "LR6" (AA)) using the test specimens A1 to A5 and the comparative specimens A1 to A4 before firing as positive electrode active materials were produced.
- the battery electrolyte was mixed with an aqueous solution of potassium hydroxide (concentration 40%) so that zinc oxyzinc was saturated, and a gelling agent (a mixture of carboxymethylcellulose and sodium polyacrylate) was added. (Approximately 1.0%) was used.
- Zinc powder was used as the negative electrode active material.
- Fig. 2 shows a vertical cross-sectional view of the Al-Li-manganese battery fabricated in this manner.
- the alkaline manganese battery according to the present invention includes a positive electrode active material 12 composed of electrolytic manganese dioxide disposed inside a positive electrode can 11 and a separator 13 disposed inside the positive electrode active material 12 with a separator 13 interposed therebetween. And a negative electrode material 14 made of the gelled sub-complex powder thus obtained.
- a negative electrode current collector 15 is inserted into the negative electrode material 14, and the negative electrode current collector 15 penetrates a sealing body 16 closing the lower portion of the positive electrode can 11 and a negative electrode provided below the sealing body 16. It is joined to the bottom plate 17.
- a cap 18 serving as a positive electrode terminal is provided above the positive electrode can 11.
- Insulating rings 19, 20 sandwiching the cap 18 and the negative electrode bottom plate 17 from above and below are provided.
- the cap 18 and the negative electrode bottom plate 17 are fixed via these insulating rings 19, 20, and the outer periphery of the positive electrode can 11 is covered.
- a heat-shrinkable resin tube 21 and an outer can 22 covering the same are provided.
- the current collector 2 also made of stainless steel is spot-welded inside the positive electrode case 1 made of organic electrolyte resistant stainless steel and also made of stainless steel.
- a positive electrode active material 3 made of electrolytic manganese diacid is pressed onto the upper surface of the body 2.
- a separator 4 made of a polypropylene resin impregnated with the above-described battery electrolyte is disposed.
- a sealing plate 6 with a negative electrode 5 made of metallic lithium joined thereto is disposed with a gasket 7 made of polypropylene interposed therebetween, thereby sealing the battery.
- the diameter of the battery is 2 Omin and the total height of the battery is 3.2 mm.
- the alkaline lithium manganese batteries using specimens A1 to A5 were compared with the alkaline manganese batteries using comparative magnesium A1 (1 ppm), which had a low magnesium content.
- the pulse characteristics of the lithium primary batteries with improved pulse characteristics of 5 to 10% and the use of specimens A1 to A5 are lower than those of the lithium primary batteries using the comparator A1 (1 ppm) with low magnesium content. It is clear that the pulse characteristics at low temperatures are improved by 5 to 15%, and the pulse characteristics at high temperatures are improved by 10 to 20 ° / 0 .
- the lithium primary battery using the comparative A2 (600 ppm) with a high magnesium content has further reduced pulse characteristics at both high and low temperatures than the lithium primary battery using the comparative A1. Became clear. Moreover, when compared with lithium primary battery using a too large compared body A 3 of the specific surface area (7 OmVg), it is clear that the pulse characteristics at high temperatures significantly improved, small compared body having specific surface area A4 (5 m 2 / g), it was found that the pulse characteristics at low temperatures were significantly improved. [Second embodiment: containing titanium]
- An electrolytic replenisher (manganese sulfate and 30% by weight titanium sulfate) was used using the same electrolytic cell as in the first embodiment described above, so that the electrolytic solution in the electrolytic cell had the composition shown in Table 4 below. While adjusting the electrolyte by injecting the amount shown in Table 4 below, maintaining the electrolyte at a temperature of 95 to 98 ° C, and maintaining the electrolyte at a current density shown in Table 4 below for 20 days. After electrolysis, the anode is taken out of the electrolytic cell, and the electrodeposited precipitate is subjected to post-treatment according to a conventional method, thereby producing test specimens B1 to B3 and comparative specimens B1 to B5, respectively. However, in Comparative Example B3, titanium oxide was mixed with the precipitate after electrolysis. Thereafter, the test pieces B1 to B3 and the comparative pieces B1 to B5 are fired in an electric furnace (400 ° C. for 4 hours).
- the first embodiment described above was directed to an alkaline manganese battery (type “LR6” (AA)) using the test specimens B 1 to B 3 and the comparative specimens B 1 to B 5 before firing as a positive electrode active material. Were prepared in the same manner as in the above case.
- the lithium primary battery (model number “CR2032” (coin type)) using the fired test specimens B1 to B3 and the comparative specimens B1 to B5 as the positive electrode active material was the first type described above. Each was produced in the same manner as in the example.
- the specimens B1 to B3 and the comparative specimens B1 to B5 before firing were each used as a positive electrode active material.
- the pulse characteristics at low temperature ( ⁇ 20 ° C.) and high temperature (60 ° C.) were measured in the same manner as in the first embodiment described above. Table 6 shows these results.
- the pulse characteristics of the alkaline manganese batteries using the specimens B1 to B3 before firing were 10 to 10 compared to the alkaline manganese batteries using the comparative specimen B1 before firing.
- the pulse characteristics at low temperatures were lower than that of the lithium primary battery using the fired comparative specimen B 1. It was found that the pulse characteristics at high temperatures were improved by 10 to 25% and the pulse characteristics at high temperatures were improved by 5 to 15%.
- the alkaline manganese battery and the lithium primary battery using the comparative B4 (4.5% by weight) containing a large amount of titanium are the alkaline manganese battery and the lithium primary battery using the comparative B1 containing no titanium.
- the pulse characteristics were further reduced as compared with the case of FIG. (Comparative) Further, the comparative B2 obtained by performing electrolysis while increasing the current density without adding titanium sulfate has a larger specific surface area than the comparative B1, but has a larger specific surface area than the comparative B1. The pulse characteristics are almost the same as the pulse characteristics of the battery using the comparative body B1. On the other hand, the battery using the test sample B1 containing titanium and having a specific surface area almost the same as that of the comparative sample B2 has a significantly larger pulse characteristic than the above-described battery using the comparative sample B1. It became clear that it could be improved.
- Comparative B3 in which titanium was simply mixed with diacid manganese had almost the same specific surface area as Comparative B1, and the above-mentioned battery using Comparative B3 also exhibited Comparative B1.
- the pulse characteristics hardly change as compared with the above-mentioned battery using.
- the specimen B2 produced so as to integrally contain the same amount of titanium as the specimen B3 during the electrolytic production has a significantly larger specific surface area than the specimen B1, and the specimen The battery using B2 also has significantly improved pulse characteristics as compared to the battery using Comparative Example B1.
- a positive electrode active material for a battery which can further improve the performance such as the lubricating property, a method for producing the same, and a battery using the same can be provided, and can be used extremely effectively in industry.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03730565A EP1544929A1 (en) | 2002-09-26 | 2003-05-22 | Active substance of positive electrode for battery, process for producing the same and battery therefrom |
CA002467709A CA2467709A1 (en) | 2002-09-26 | 2003-05-22 | Active substance of positive electrode for battery, process for producing the same and battery therefrom |
US10/496,768 US20060019165A1 (en) | 2002-09-26 | 2003-05-22 | Active substance of postitive electrode for battery, process for producing the same and battery therefrom |
AU2003242387A AU2003242387A1 (en) | 2002-09-26 | 2003-05-22 | Active substance of positive electrode for battery, process for producing the same and battery therefrom |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-280139 | 2002-09-26 | ||
JP2002280139A JP2004119167A (ja) | 2002-09-26 | 2002-09-26 | 電池用正極活物質及び電解二酸化マンガンの製造方法並びに電池 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004030124A1 true WO2004030124A1 (ja) | 2004-04-08 |
Family
ID=32040477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/006377 WO2004030124A1 (ja) | 2002-09-26 | 2003-05-22 | 電池用正極活物質並びにその製造方法及びそれを用いた電池 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060019165A1 (ja) |
EP (1) | EP1544929A1 (ja) |
JP (1) | JP2004119167A (ja) |
KR (1) | KR20050054870A (ja) |
CN (1) | CN1610981A (ja) |
AU (1) | AU2003242387A1 (ja) |
CA (1) | CA2467709A1 (ja) |
WO (1) | WO2004030124A1 (ja) |
ZA (1) | ZA200403761B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009043547A (ja) * | 2007-08-08 | 2009-02-26 | Fdk Energy Co Ltd | 電池用電解二酸化マンガン、正極合剤およびアルカリ電池 |
CN103014800B (zh) * | 2012-12-29 | 2016-06-01 | 北京化工大学 | 铈掺杂的石墨基二氧化铅催化电极的制备方法 |
KR102196363B1 (ko) | 2013-10-29 | 2020-12-30 | 삼성전자주식회사 | 마그네슘 전지용 전극 활물질, 이를 포함하는 전극 및 마그네슘 전지, 및 마그네슘 전지용 전극 활물질의 제조방법 |
CN108793256B (zh) * | 2018-06-26 | 2022-10-11 | 普瑞斯矿业(中国)有限公司 | 一种电解二氧化锰粉末及其制备方法 |
CN109509889B (zh) * | 2018-10-19 | 2020-10-27 | 安徽正熹标王新能源有限公司 | 一种锌锰电池的正极粉环管制造装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0367463A (ja) * | 1989-08-07 | 1991-03-22 | Fuji Elelctrochem Co Ltd | 非水電解液二次電池 |
JPH09153358A (ja) * | 1995-11-30 | 1997-06-10 | Yuasa Corp | 有機電解質電池 |
EP0789410A1 (en) * | 1996-02-02 | 1997-08-13 | Matsushita Electric Industrial Co., Ltd. | Batteries and a manufacturing method of postitive active material for the batteries |
JP2003163003A (ja) * | 2001-11-26 | 2003-06-06 | Mitsui Mining & Smelting Co Ltd | 電池用正極活物質及び電解二酸化マンガンの製造方法並びに電池 |
JP7105233B2 (ja) * | 2017-06-15 | 2022-07-22 | 株式会社Nttドコモ | 端末及び無線通信方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6585881B2 (en) * | 2001-02-20 | 2003-07-01 | The Gillette Company | Process for manufacture and improved manganese dioxide for electrochemical cells |
-
2002
- 2002-09-26 JP JP2002280139A patent/JP2004119167A/ja not_active Withdrawn
-
2003
- 2003-05-22 CA CA002467709A patent/CA2467709A1/en not_active Abandoned
- 2003-05-22 EP EP03730565A patent/EP1544929A1/en not_active Withdrawn
- 2003-05-22 WO PCT/JP2003/006377 patent/WO2004030124A1/ja not_active Application Discontinuation
- 2003-05-22 US US10/496,768 patent/US20060019165A1/en not_active Abandoned
- 2003-05-22 CN CNA038018845A patent/CN1610981A/zh active Pending
- 2003-05-22 AU AU2003242387A patent/AU2003242387A1/en not_active Abandoned
- 2003-05-22 KR KR1020047010445A patent/KR20050054870A/ko not_active Application Discontinuation
-
2004
- 2004-05-17 ZA ZA200403761A patent/ZA200403761B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0367463A (ja) * | 1989-08-07 | 1991-03-22 | Fuji Elelctrochem Co Ltd | 非水電解液二次電池 |
JPH09153358A (ja) * | 1995-11-30 | 1997-06-10 | Yuasa Corp | 有機電解質電池 |
EP0789410A1 (en) * | 1996-02-02 | 1997-08-13 | Matsushita Electric Industrial Co., Ltd. | Batteries and a manufacturing method of postitive active material for the batteries |
JP2003163003A (ja) * | 2001-11-26 | 2003-06-06 | Mitsui Mining & Smelting Co Ltd | 電池用正極活物質及び電解二酸化マンガンの製造方法並びに電池 |
JP7105233B2 (ja) * | 2017-06-15 | 2022-07-22 | 株式会社Nttドコモ | 端末及び無線通信方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2004119167A (ja) | 2004-04-15 |
KR20050054870A (ko) | 2005-06-10 |
ZA200403761B (en) | 2004-11-23 |
AU2003242387A1 (en) | 2004-04-19 |
EP1544929A1 (en) | 2005-06-22 |
CN1610981A (zh) | 2005-04-27 |
CA2467709A1 (en) | 2004-04-08 |
US20060019165A1 (en) | 2006-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7501208B2 (en) | Doped manganese dioxides | |
CN1176507C (zh) | 锂化二氧化锰 | |
US9246164B2 (en) | Protected transition metal hexacyanoferrate battery electrode | |
US20100221613A1 (en) | Coated positive electrode active material, positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and their production methods | |
JP7121219B1 (ja) | リチウム金属複合酸化物の製造方法 | |
CN1816925A (zh) | 具有钒酸铜阴极的锂电池 | |
KR101746188B1 (ko) | 이차 전지용 전극 합제 첨가제, 이의 제조 방법, 이를 포함하는 이차 전지용 전극 및 이차 전지 | |
JPH11224664A (ja) | 高耐湿性、高安全性リチウムイオン二次電池 | |
EP1297581B1 (en) | Doped manganese dioxides | |
JP2014216077A (ja) | 非水電解質リチウムイオン二次電池用正極材料およびその正極材料を用いた非水電解質リチウムイオン二次電池 | |
JP2004186127A (ja) | 電池用正極活物質及び電解二酸化マンガンの製造方法並びに電池 | |
JP3712259B2 (ja) | アルカリマンガン電池用正極活物質及び電池 | |
JP3590178B2 (ja) | 電解二酸化マンガンおよびその製造方法、並びにマンガン乾電池 | |
JP2003017077A (ja) | 密閉型アルカリ亜鉛一次電池 | |
WO2014178170A1 (en) | Protected transition metal hexacyanoferrate battery electrode | |
WO2004030124A1 (ja) | 電池用正極活物質並びにその製造方法及びそれを用いた電池 | |
JP3553541B2 (ja) | 電池用正極活物質及び電解二酸化マンガンの製造方法並びに電池 | |
Lu et al. | Hollow Nanostructured MoO2 Electrode Materials for Supercapacitors | |
CN1305644A (zh) | 锂化氧化锰 | |
JP4843842B2 (ja) | リチウム2次電池用正極板の製造方法 | |
CN114830375A (zh) | 正极活性物质及其制备方法、包括该物质的锂二次电池 | |
JP2021140974A (ja) | 電池の負極材料とその製造方法 | |
JP3353588B2 (ja) | 電池および電池用マンガン酸化物の製造法 | |
EP3757256B1 (en) | Electrodeposited copper foil | |
KR101973003B1 (ko) | 수계 전해액 리튬 이차전지용 음극 소재 및 이의 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA CN KR US ZA |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003242387 Country of ref document: AU Ref document number: 2003730565 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004/03761 Country of ref document: ZA Ref document number: 200403761 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2467709 Country of ref document: CA |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 20038018845 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020047010445 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: 2006019165 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10496768 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2003730565 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10496768 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2003730565 Country of ref document: EP |