KR101815779B1 - 입도 및 입도 분포를 제어할 수 있는 활물질 전구체의 제조방법 - Google Patents
입도 및 입도 분포를 제어할 수 있는 활물질 전구체의 제조방법 Download PDFInfo
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- KR101815779B1 KR101815779B1 KR1020160096198A KR20160096198A KR101815779B1 KR 101815779 B1 KR101815779 B1 KR 101815779B1 KR 1020160096198 A KR1020160096198 A KR 1020160096198A KR 20160096198 A KR20160096198 A KR 20160096198A KR 101815779 B1 KR101815779 B1 KR 101815779B1
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- 239000002243 precursor Substances 0.000 title claims abstract description 183
- 239000002245 particle Substances 0.000 title claims abstract description 102
- 239000011149 active material Substances 0.000 title claims abstract description 59
- 238000009826 distribution Methods 0.000 title abstract description 33
- 238000000034 method Methods 0.000 title abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000011268 mixed slurry Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 45
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- 238000000975 co-precipitation Methods 0.000 claims description 27
- 239000011572 manganese Substances 0.000 claims description 20
- 239000006182 cathode active material Substances 0.000 claims description 12
- 230000007935 neutral effect Effects 0.000 claims description 9
- 229910013716 LiNi Inorganic materials 0.000 claims description 7
- 239000007774 positive electrode material Substances 0.000 claims description 7
- 229910013733 LiCo Inorganic materials 0.000 claims description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 claims description 3
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims description 3
- 229910014689 LiMnO Inorganic materials 0.000 claims description 3
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 claims description 3
- NDPGDHBNXZOBJS-UHFFFAOYSA-N aluminum lithium cobalt(2+) nickel(2+) oxygen(2-) Chemical compound [Li+].[O--].[O--].[O--].[O--].[Al+3].[Co++].[Ni++] NDPGDHBNXZOBJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- 229910002102 lithium manganese oxide Inorganic materials 0.000 claims description 3
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 claims description 3
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 claims description 3
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical compound [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 claims description 2
- MWLDTCPVXXMIRC-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[Al+3].[Ni++] Chemical compound [Li+].[O--].[O--].[O--].[Al+3].[Ni++] MWLDTCPVXXMIRC-UHFFFAOYSA-N 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 12
- 230000002902 bimodal effect Effects 0.000 abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 72
- 239000007864 aqueous solution Substances 0.000 description 60
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 50
- 239000000243 solution Substances 0.000 description 46
- SEVNKUSLDMZOTL-UHFFFAOYSA-H cobalt(2+);manganese(2+);nickel(2+);hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mn+2].[Co+2].[Ni+2] SEVNKUSLDMZOTL-UHFFFAOYSA-H 0.000 description 32
- 239000012452 mother liquor Substances 0.000 description 28
- 229910021529 ammonia Inorganic materials 0.000 description 25
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 23
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 23
- 235000011130 ammonium sulphate Nutrition 0.000 description 23
- 239000000203 mixture Substances 0.000 description 18
- 238000001035 drying Methods 0.000 description 15
- 235000012970 cakes Nutrition 0.000 description 13
- 239000010419 fine particle Substances 0.000 description 13
- 239000012535 impurity Substances 0.000 description 13
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 239000002131 composite material Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 12
- 229910000000 metal hydroxide Inorganic materials 0.000 description 12
- 150000004692 metal hydroxides Chemical class 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 238000002156 mixing Methods 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 239000003513 alkali Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 150000001868 cobalt Chemical class 0.000 description 8
- 150000002696 manganese Chemical class 0.000 description 8
- 150000002815 nickel Chemical class 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 239000008235 industrial water Substances 0.000 description 7
- 238000010409 ironing Methods 0.000 description 7
- -1 metal complex salt Chemical class 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 239000003518 caustics Substances 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 238000003921 particle size analysis Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000008234 soft water Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000008139 complexing agent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 241000080590 Niso Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000011437 continuous method Methods 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- XHKDRDHFKWLHAE-UHFFFAOYSA-F C(C(=O)[O-])(=O)[O-].[Ti+4].[Ti+4].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-] Chemical compound C(C(=O)[O-])(=O)[O-].[Ti+4].[Ti+4].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-].C(C(=O)[O-])(=O)[O-] XHKDRDHFKWLHAE-UHFFFAOYSA-F 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- LFYMLMKKOJHYFY-UHFFFAOYSA-N [O-2].[Al+3].[Ni+2] Chemical compound [O-2].[Al+3].[Ni+2] LFYMLMKKOJHYFY-UHFFFAOYSA-N 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000013566 allergen Substances 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
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 1
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 1
- BRMXSFRLQQTALQ-UHFFFAOYSA-J cobalt(2+);manganese(2+);tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Mn+2].[Co+2] BRMXSFRLQQTALQ-UHFFFAOYSA-J 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000021463 dry cake Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese dihydroxide Chemical class [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- XNHGKSMNCCTMFO-UHFFFAOYSA-D niobium(5+);oxalate Chemical compound [Nb+5].[Nb+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O XNHGKSMNCCTMFO-UHFFFAOYSA-D 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- VLOPEOIIELCUML-UHFFFAOYSA-L vanadium(2+);sulfate Chemical compound [V+2].[O-]S([O-])(=O)=O VLOPEOIIELCUML-UHFFFAOYSA-L 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
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Classifications
-
- 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
- C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)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
- C01G49/00—Compounds of iron
-
- 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
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y02E60/122—
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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)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
도 2는 본 발명의 일 측면에 따른 이차전지 활물질 전구체 제조방법 시스템 구성을 개략적으로 나타낸 모식도이다.
Dmin | D10 | D50 | D90 | Dmax | |
R1 모액 탱크 | 0.69um | 2.08um | 3.32um | 5.18um | 10.92um |
R2 모액 탱크 | 4.62um | 7.46um | 10.83um | 15.99um | 28.35um |
R3 모액 탱크 | 6.72um | 12.48um | 18.33um | 27.39um | 48.25um |
Dmin | D10 | D50 | D90 | Dmax | |
실시예 1 | 0.71um | 6.21um | 9.95um | 23.58um | 47.33um |
Dmin | D10 | D50 | D90 | Dmax | |
실시예 2 | 1.21um | 7.84um | 13.22um | 24.85um | 46.11um |
Dmin | D10 | D50 | D90 | Dmax | |
Ra 모액 탱크 | 0.54um | 2.74um | 3.88um | 6.18um | 11.84um |
Rb 모액 탱크 | 5.55um | 8.67um | 11.35um | 17.24um | 35.22um |
Rc 모액 탱크 | 8.25um | 13.74um | 20.79um | 32.91um | 56.55um |
Dmin | D10 | D50 | D90 | Dmax | |
실시예 3 | 0.62um | 4.98um | 10.12um | 28.82um | 45.31um |
Dmin | D10 | D50 | D90 | Dmax | |
실시예 4 | 0.61um | 7.14um | 13.13um | 26.42um | 54.13um |
Dmin | D10 | D50 | D90 | Dmax | |
비교예 1 | 0.71um | 2.12um | 3.28um | 5.03um | 10.88um |
Dmin | D10 | D50 | D90 | Dmax | |
비교예 2 | 0.65um | 7.82um | 15.35um | 29.27um | 55.14um |
Fe | Cr | Zn | Cu | Ca | Mg | Na | S | Si | 수분 | |
실시예 1 | 12 | 3 | 2 | 12 | 46 | 34 | 75 | 1468 | 28 | 2600 |
실시예 2 | 10 | 3 | 2 | 11 | 38 | 28 | 69 | 1255 | 25 | 2450 |
실시예 3 | 13 | 3 | 2 | 11 | 45 | 36 | 74 | 1520 | 31 | 2580 |
실시예 4 | 15 | 4 | 3 | 14 | 48 | 37 | 82 | 1740 | 35 | 2980 |
비교예 1 | 24 | 6 | 5 | 19 | 85 | 56 | 102 | 3230 | 45 | 4050 |
비교예 2 | 17 | 5 | 4 | 16 | 65 | 48 | 87 | 2850 | 36 | 3820 |
Claims (5)
- 공침 반응을 통하여 이차전지용 활물질 전구체를 제조하는 방법에 있어서,
(A) 평균입도(D50)가 1~7um인 소립자 활물질 전구체 슬러리와, 평균입도(D50)가 7~15um인 중립자 활물질 전구체 슬러리 및 평균입도(D50)가 15~30um인 대립자 활물질 전구체 슬러리 중 하나 이상을 혼합하여 혼합 슬러리를 제조하되, 상기 소립자 활물질 전구체 슬러리가 전체 혼합 슬러리 100 중량부 대비 5 내지 50 중량부인 혼합 슬러리를 제조하는 단계; 및
(B) 상기 혼합 슬러리를 필터 프레스를 통과시켜 여과하는 단계;
을 포함하는 것을 특징으로 하는, 이차전지용 활물질 전구체를 제조하는 방법
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 활물질 전구체로는, 리튬코발트 산화물(LiCoO2)계 양극활물질, 리튬코발트니켈망간 산화물(LiCoxNiyMnzO2, x+y+z=1)계 양극활물질, 리튬코발트니켈 산화물(LiCoxNiyO2, x+y=1)계, 리튬망간 산화물(LiMnO2)계 양극활물질, 리튬망간인산 산화물(LiMnPO4)계 양극활물질, 리튬철인산 산화물(LiFePO4)계 양극활물질, 리튬니켈알루미늄 산화물(LiNixAlyO2, x+y=1)계 양극활물질 및 리튬니켈코발트알루미늄 산화물(LiNixCoyAlzO2, x+y+z=1)계 활물질로 이루어진 그룹에서 선택된 1종 이상의 활물질을 제조할 수 있는 물질을 사용하는, 이차전지용 활물질 전구체의 제조방법.
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