WO1994022767A1 - METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL - Google Patents
METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL Download PDFInfo
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- WO1994022767A1 WO1994022767A1 PCT/JP1994/000530 JP9400530W WO9422767A1 WO 1994022767 A1 WO1994022767 A1 WO 1994022767A1 JP 9400530 W JP9400530 W JP 9400530W WO 9422767 A1 WO9422767 A1 WO 9422767A1
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- WIPO (PCT)
- Prior art keywords
- mol
- metal salt
- basic metal
- ratio
- aqueous solution
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 title abstract 2
- 101100074807 Mus musculus Lhx3 gene Proteins 0.000 title abstract 2
- 238000000034 method Methods 0.000 title description 8
- 239000000463 material Substances 0.000 title description 2
- -1 basic metal salt Chemical class 0.000 claims abstract description 18
- 239000012298 atmosphere Substances 0.000 claims abstract description 16
- 229910052728 basic metal Inorganic materials 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 150000002642 lithium compounds Chemical class 0.000 claims abstract description 12
- 150000001450 anions Chemical class 0.000 claims abstract description 7
- 239000012736 aqueous medium Substances 0.000 claims abstract description 4
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 238000010304 firing Methods 0.000 claims description 15
- 238000001694 spray drying Methods 0.000 claims description 12
- 238000002441 X-ray diffraction Methods 0.000 claims description 11
- 239000007774 positive electrode material Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 5
- 102100038123 Teneurin-4 Human genes 0.000 claims 1
- 101710122302 Teneurin-4 Proteins 0.000 claims 1
- 239000011149 active material Substances 0.000 abstract description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 43
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 30
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- 239000007864 aqueous solution Substances 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 23
- 239000000243 solution Substances 0.000 description 22
- 239000000843 powder Substances 0.000 description 21
- 239000011572 manganese Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000000725 suspension Substances 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 15
- 239000001301 oxygen Substances 0.000 description 15
- 229910052760 oxygen Inorganic materials 0.000 description 15
- 239000000047 product Substances 0.000 description 15
- 239000004570 mortar (masonry) Substances 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 11
- 239000013078 crystal Substances 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 2
- CONKBQPVFMXDOV-QHCPKHFHSA-N 6-[(5S)-5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-2-oxo-1,3-oxazolidin-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C[C@H]1CN(C(O1)=O)C1=CC2=C(NC(O2)=O)C=C1 CONKBQPVFMXDOV-QHCPKHFHSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 2
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- SXAMGRAIZSSWIH-UHFFFAOYSA-N 2-[3-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,2,4-oxadiazol-5-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NOC(=N1)CC(=O)N1CC2=C(CC1)NN=N2 SXAMGRAIZSSWIH-UHFFFAOYSA-N 0.000 description 1
- ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2 ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 0.000 description 1
- YJLUBHOZZTYQIP-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)NN=N2 YJLUBHOZZTYQIP-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003795 chemical substances by application 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
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- LFLZOWIFJOBEPN-UHFFFAOYSA-N nitrate, nitrate Chemical compound O[N+]([O-])=O.O[N+]([O-])=O LFLZOWIFJOBEPN-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000007704 transition Effects 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1228—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO2)-, e.g. LiMnO2 or Li(MxMn1-x)O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1242—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (Mn2O4)-, e.g. LiMn2O4 or Li(MxMn2-x)O4
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Complex oxides containing cobalt and at least one other metal element
- C01G51/42—Complex oxides containing cobalt and at least one other metal element 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—Complex oxides containing nickel and at least one other metal element
- C01G53/42—Complex oxides containing nickel and at least one other metal element 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
- 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
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/74—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by peak-intensities or a ratio thereof only
-
- 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
-
- 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
- L i M 3 + 0 2 M 3 + is N i 3 + or Z and C o 3 ⁇ ) or L i Mn 2 0 4 with a use as a positive electrode material of rechargeable secondary battery and new manufacturing method, a secondary battery positive electrode L i N i 3 + 0 2 obtained in its preparation.
- the active material of the positive electrode of the secondary battery is being L i CO0 2 (lithium Kobanoreto acid) force rather heavy.
- L i CO0 2 lithium Kobanoreto acid
- the powder of the powder and C 0 C0 3 of L i 2 C O3 were mixed by a dry or wet
- the mixture is preliminarily baked, pulverized, mixed, and then baked, which is a complicated and inefficient method.
- FIG. 4 shows this synthesis method, which uses a double-pipe apparatus in which an inner pipe 2 made of nickel is inserted into an outer pipe 1 made of nickel.
- the inner tube 2 has an opening at its insertion end to form a blowout port 3, and the outer tube 1 is filled with a predetermined amount of L OH powder 4, for example, 50 g.
- the present invention has been made in view of the above circumstances, and it is possible to easily obtain a crystal having a high purity, a high degree of crystal perfection and a wide range of crystal particle diameters by a simple operation such as firing at a low temperature and a short time.
- L i M 3 + 0 2 (M 3 + is N) that can be manufactured, can be mass-produced industrially, and can exhibit excellent charge / discharge characteristics when applied to the active material of the positive electrode of a secondary battery.
- the present invention aims to provide a secondary battery for use in a positive electrode L i N i 3 + 0 2 obtained by this manufacturing method.
- L iM 3 + 0 2 (M 3 + is N i 3 or / and C o 3+) or L IMN
- the production method of 20 is characterized in that a slurry obtained by reacting an alkaline water-soluble lithium compound containing an anion which volatilizes during firing with a basic metal salt in an aqueous medium is dried, and then fired. And
- the lithium compound and the basic metal salt used in the present invention are volatilized during the calcination described below. Those containing anions are used.
- Examples of the lithium compound, L i OH, L i C0 3 or Ki out to select one or more from among such hydrates thereof, basic metal salt (M 2+ (OH) 2 - nx ( a "") - mH 2 0 n i 2 + is a M 2 + in) is at least one of Co 2+ and Mn 2+, anionic or a n - is N0 3 -, CI-, B r-, CH 3 C00-, C0 3 2 - is represented by Anion n-valent such as (n l ⁇ 3) can be selected from the compounds.
- L i OH is used as a lithium compound
- N i (OH) ( ⁇ ) is used as a basic metal salt.
- the reaction is carried out by mixing these lithium compounds and basic metal salts in an aqueous medium.
- concentration of the reaction solution to be used can be appropriately selected from the range of 5 to 25 wt%, and is not particularly limited.
- the reaction can be selected within the range of room temperature to 100 ° C., and is not particularly limited.
- a major feature of the present invention is that a basic salt of M 2+ having a specific composition is used as the M 2+ compound.
- This basic salt of ⁇ 2 ⁇ having a specific composition has a layered structure, and both the composition and the crystal structure are close to those of M 2+ (OH). Reacts with alkaline lithium compounds such as LiOH and easily migrates to M 2+ (OH), resulting in extremely good Li M 2 + O 2 or Li M n to form a 2 0 4 precursor.
- Basic metal salt used here is an aqueous solution of M 2 ⁇ , against M 2 +, about 0.7 to 0 It can be produced by adding 95.5 equivalents, preferably about 0.8 to 0.95 equivalents of an alkali under a reaction condition of about 80 ° C. or lower and reacting.
- alkali metal used here include alkali metal hydroxide such as sodium hydroxide, alkaline earth metal hydroxide such as calcium hydroxide, and amines. It is more preferable that the basic metal salt is aged at 40 ° C. to 70 ° C. for 0.1 to 10 hours after the synthesis. Next, by-products are removed by washing with water and reacted with a lithium compound.
- the method of drying the slurry obtained by such a reaction can be performed by a commonly used method, for example, heating drying in a furnace, spray drying, drying under reduced pressure, or other means. Of these, spray drying is preferred from the viewpoint of uniformity, thermal efficiency, and productivity of the resulting composition.
- the firing is performed by performing heat treatment in a temperature range of about 500 to 100 ° C. for about 0.1 to 20 hours.
- heating in a temperature range of 700 to 800 ° C. is good, and firing is performed in a gas atmosphere having an oxidizing power including air, oxygen, or ozone.
- It is preferable to carry out in. - L i M 3 + 0 2 or L i Mn 2 0 4 obtained in this way leads to improve characteristics of the active substance of the positive electrode.
- Li Ni 0 2 there is no generation of impurities such as Ni 0, and a crystal with high completeness with few lattice defects and lattice distortions can be obtained. Therefore, in the X-ray diffraction pattern, It appears as a high intensity ratio of the (003) plane to the (104) plane, or the ratio of the trivalent Ni is at least 97%, and when it is large, it is almost 100%.
- FIG. 1 is a characteristic diagram by X-ray diffraction of Examples 1 to 4 of the present invention
- FIG. 2 is a characteristic diagram by X-ray diffraction of Examples 5 to 8
- FIG. 5 are characteristic diagrams obtained by X-ray diffraction.
- FIG. 4 is a characteristic diagram showing a conventional manufacturing method. BEST MODE FOR CARRYING OUT THE INVENTION
- the obtained dried gel was placed in an alumina bottle and calcined in an oxygen atmosphere at 750 ° C. for 10 hours in a tubular furnace. Firing product was pulverized in a mortar, and the L i N i 0 2 powder.
- the obtained dried gel was placed in an alumina boat and calcined at 750 ° C. for 10 hours in an oxygen atmosphere in a tubular furnace. Firing product was pulverized in a mortar, and the L i N i 0 2 powder.
- the solution was filtered, washed with water and suspended in water to obtain an Imol / 1 Mn (OH) slurry.
- the obtained dried gel was placed in an alumina boat and calcined in an oxygen atmosphere at 750 ° C. for 10 hours in a tubular furnace. Firing product was pulverized in a mortar, L iMn 2 0 4 It was a powder.
- Battery test method is L i M 3 + 0 2 or prepared in Examples 1-8 and Comparative Examples 1 ⁇ 5 L iMn 2 O 4 powder and the conductive binder (polytetrafluoroethylene one Asechi Len Black) was mixed at a ratio of 2: 1 (weight ratio), and the mixture was pressed into a pellet having a thickness of 0.5 mm and a diameter of 18 mm. This was press-bonded to a stainless steel extract band mesh at a pressure of 1 t / cm 2 using a press machine to obtain a positive electrode mixture molded product.
- the negative electrode active material a material punched out from a sheet of lithium metal to a diameter of 18 mm was used.
- Figs. 1 to 3 show X-ray diffraction patterns.
- the characteristic curve A is the example 1
- the characteristic curve B is the example 2
- the characteristic curve C is the example 3
- the characteristic curve D is the example.
- the characteristic curve E is Example 5
- the characteristic curve F is Example 6
- the characteristic curve G is Example 7
- the characteristic curve H is Example 8, and in FIG. 3, the characteristic curve I is Comparative Example 1, characteristic curve J shows Comparative Example 2, characteristic curve K shows Comparative Example 3, characteristic curve L shows Comparative Example 4, and characteristic curve M shows Comparative Example 5, respectively.
- Table 1 shows the results of identification by X-ray diffraction, the peak ratio, the results of composition analysis of each comparative example and the example obtained by atomic absorption analysis, etc., and Table 2 shows the results of the battery test.
- M means Ni, Co or Mn.
- the N i +3% or C o + 3% is shown as a percentage of total N i or the total C o.
- the Ni + 3 % or Co + 3 % was measured by redox titration. That sample 0. 2 FeS0 of g to 0. 25M 4 - 3. were dissolved in 61 ⁇ of 11 2 S 0 4 solution, after the addition of concentrated phosphoric acid 2 m 1, 0. 1: In 1 ⁇ 110 4 Titrate. Perform a blank test in the same manner, and find Ni + 3 % or Co + 3 % based on the sample amount using equation (2).
- f is KMn0 4 solution factor of 0. 1N, x. Is the blank test titer (ml), x is the titer (ml), m is the sample volume (g), A is 5.871 for Ni, and 5.893 for Co.
- N i + 3 % or C 0 + 3 % is calculated.
- N i + 3%, or C o +3% (3) the total N i%, or C o%
- the X-ray diffraction described above uses the trade name “Geigerflex RAD-IA” (Rigaku Denki Co., Ltd.).
- the LiM can be used as a positive electrode active material of a secondary battery having excellent charge / discharge properties. 3 + 0 2 or L IMN 2 0 4 the industrial production child and can by a simple operation.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Secondary Cells (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69410378T DE69410378T2 (de) | 1993-04-01 | 1994-03-31 | VERFAHREN ZUR PRODUKTION VON LiM3+O2 ODER LiMn2O4 UND LiNi3+O2 ALS POSITIVES POLMATERIAL EINER SEKUNDÄREN ZELLE |
EP94910578A EP0646546B1 (en) | 1993-04-01 | 1994-03-31 | METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL |
US08/347,291 US5648057A (en) | 1993-04-01 | 1994-03-31 | Process for producing LiM3+ O2 or LiMn2 O4 and LiNi+ O2 for use in positive electrode of secondary battery |
CA002137081A CA2137081C (en) | 1993-04-01 | 1994-03-31 | Process for producing lim3+02 or limn2o4 and lini3+02 for use in positive electrode of secondary battery |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9847293 | 1993-04-01 | ||
JP5/98472 | 1993-04-01 | ||
JP6/80895 | 1994-03-28 | ||
JP6080895A JP2729176B2 (ja) | 1993-04-01 | 1994-03-28 | LiM3+O2 またはLiMn2 O4 の製造方法及び2次電池正極材用LiNi3+O2 |
Publications (1)
Publication Number | Publication Date |
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WO1994022767A1 true WO1994022767A1 (en) | 1994-10-13 |
Family
ID=26421856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1994/000530 WO1994022767A1 (en) | 1993-04-01 | 1994-03-31 | METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL |
Country Status (6)
Country | Link |
---|---|
US (1) | US5648057A (ja) |
EP (1) | EP0646546B1 (ja) |
JP (1) | JP2729176B2 (ja) |
CA (1) | CA2137081C (ja) |
DE (1) | DE69410378T2 (ja) |
WO (1) | WO1994022767A1 (ja) |
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US6325988B1 (en) * | 1997-05-07 | 2001-12-04 | Fuji Chemical Industry Co., Ltd. | Process for preparing spinel type lithium manganese composite oxide and cathode active material for rechargeable battery |
US6395250B2 (en) * | 1996-08-12 | 2002-05-28 | Fuji Chemical Industry Co., Ltd. | Lithium/nickel/cobalt composite oxide, process for preparing the same, and cathode active material for rechargeable battery |
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- 1994-03-28 JP JP6080895A patent/JP2729176B2/ja not_active Expired - Fee Related
- 1994-03-31 DE DE69410378T patent/DE69410378T2/de not_active Expired - Lifetime
- 1994-03-31 CA CA002137081A patent/CA2137081C/en not_active Expired - Lifetime
- 1994-03-31 WO PCT/JP1994/000530 patent/WO1994022767A1/ja active IP Right Grant
- 1994-03-31 US US08/347,291 patent/US5648057A/en not_active Expired - Fee Related
- 1994-03-31 EP EP94910578A patent/EP0646546B1/en not_active Expired - Lifetime
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6019955A (en) * | 1996-03-08 | 2000-02-01 | Energy Conversion Devices, Inc. | Active nickel hydroxide material having controlled water content |
US6395250B2 (en) * | 1996-08-12 | 2002-05-28 | Fuji Chemical Industry Co., Ltd. | Lithium/nickel/cobalt composite oxide, process for preparing the same, and cathode active material for rechargeable battery |
US6325988B1 (en) * | 1997-05-07 | 2001-12-04 | Fuji Chemical Industry Co., Ltd. | Process for preparing spinel type lithium manganese composite oxide and cathode active material for rechargeable battery |
Also Published As
Publication number | Publication date |
---|---|
US5648057A (en) | 1997-07-15 |
DE69410378D1 (de) | 1998-06-25 |
CA2137081A1 (en) | 1994-10-13 |
EP0646546B1 (en) | 1998-05-20 |
EP0646546A4 (en) | 1996-04-17 |
JP2729176B2 (ja) | 1998-03-18 |
JPH08130013A (ja) | 1996-05-21 |
EP0646546A1 (en) | 1995-04-05 |
CA2137081C (en) | 2004-11-02 |
DE69410378T2 (de) | 1998-09-17 |
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