KR20130100625A - 리튬전지 - Google Patents
리튬전지 Download PDFInfo
- Publication number
- KR20130100625A KR20130100625A KR1020120022028A KR20120022028A KR20130100625A KR 20130100625 A KR20130100625 A KR 20130100625A KR 1020120022028 A KR1020120022028 A KR 1020120022028A KR 20120022028 A KR20120022028 A KR 20120022028A KR 20130100625 A KR20130100625 A KR 20130100625A
- Authority
- KR
- South Korea
- Prior art keywords
- lithium
- lithium battery
- manganese oxide
- peak
- solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 97
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000002904 solvent Substances 0.000 claims abstract description 42
- 229910002102 lithium manganese oxide Inorganic materials 0.000 claims abstract description 40
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000009835 boiling Methods 0.000 claims abstract description 14
- 238000001237 Raman spectrum Methods 0.000 claims abstract description 13
- 239000003792 electrolyte Substances 0.000 claims abstract description 11
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 11
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 11
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 10
- 239000011029 spinel Substances 0.000 claims abstract description 10
- 239000012046 mixed solvent Substances 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 22
- 239000011572 manganese Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- -1 fatty acid ester Chemical class 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 229910052796 boron Inorganic materials 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000011163 secondary particle Substances 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000003575 carbonaceous material Substances 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011164 primary particle Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical class CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical class CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 claims description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical class CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical class COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 3
- 229910010238 LiAlCl 4 Inorganic materials 0.000 claims description 3
- 229910010093 LiAlO Inorganic materials 0.000 claims description 3
- 229910015015 LiAsF 6 Inorganic materials 0.000 claims description 3
- 229910013063 LiBF 4 Inorganic materials 0.000 claims description 3
- 229910013372 LiC 4 Inorganic materials 0.000 claims description 3
- 229910013684 LiClO 4 Inorganic materials 0.000 claims description 3
- 229910012513 LiSbF 6 Inorganic materials 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical class COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical class CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
- 238000001069 Raman spectroscopy Methods 0.000 claims 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 claims 1
- 239000008239 natural water Substances 0.000 claims 1
- 238000001228 spectrum Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 25
- 239000007774 positive electrode material Substances 0.000 description 16
- 239000011230 binding agent Substances 0.000 description 14
- 239000006182 cathode active material Substances 0.000 description 14
- 239000004020 conductor Substances 0.000 description 14
- 239000007773 negative electrode material Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 8
- 239000005486 organic electrolyte Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000002033 PVDF binder Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 4
- 229910013716 LiNi Inorganic materials 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 229910000314 transition metal oxide Inorganic materials 0.000 description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910018871 CoO 2 Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 239000006183 anode active material Substances 0.000 description 2
- 229910052795 boron group element Inorganic materials 0.000 description 2
- 229910052800 carbon group element Inorganic materials 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229920005609 vinylidenefluoride/hexafluoropropylene copolymer Polymers 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 229910017796 Sb Si—Y Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- RLTFLELMPUMVEH-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[V+5] Chemical compound [Li+].[O--].[O--].[O--].[V+5] RLTFLELMPUMVEH-UHFFFAOYSA-N 0.000 description 1
- IDSMHEZTLOUMLM-UHFFFAOYSA-N [Li].[O].[Co] Chemical class [Li].[O].[Co] IDSMHEZTLOUMLM-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- FDLZQPXZHIFURF-UHFFFAOYSA-N [O-2].[Ti+4].[Li+] Chemical compound [O-2].[Ti+4].[Li+] FDLZQPXZHIFURF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000003610 charcoal 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 group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001344 confocal Raman microscopy Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010294 electrolyte impregnation Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910021473 hassium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- QEXMICRJPVUPSN-UHFFFAOYSA-N lithium manganese(2+) oxygen(2-) Chemical class [O-2].[Mn+2].[Li+] QEXMICRJPVUPSN-UHFFFAOYSA-N 0.000 description 1
- 229910000686 lithium vanadium oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 239000006051 mesophase pitch carbide Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910021481 rutherfordium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910021477 seaborgium Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—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
- C01G45/1242—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (Mn2O4)-, e.g. LiMn2O4 or Li(MxMn2-x)O4
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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Abstract
Description
도 1b는 도 1a의 확대도이다.
도 2는 실시예 6 및 비교예 2에서 제조된 리튬전지의 고온충방전 실험결과이다.
도 3은 실시예 6 및 비교예 2에서 제조된 리튬전지에 포함된 리튬망간산화물의 고온 방치 후의 라만스펙트럼 측정 결과이다.
도 4는 예시적인 구현예에 따른 리튬전지의 모식도이다.
<도면의 주요 부분에 대한 부호의 설명>
1: 리튬전지 2: 음극
3: 양극 4: 세퍼레이터
5: 전지케이스 6: 캡 어셈블리
| 비표면적[m2/g] | |
| 실시예 1 | 0.30 |
| 비교예 1 | 0.18 |
| 2차 입자 평균입경 (D50) [㎛] |
|
| 실시예 1 | 16.17 |
| 비교예 1 | 24.80 |
| 고온 용량 유지율[%] | |
| 실시예 6 | 98.2 |
| 비교예 2 | 85.4 |
| 용량 회복율[%] | 용량 유지율[%] | |
| 실시예 6 | 86.0 | 98.2 |
| 비교예 2 | 70.2 | 85.4 |
Claims (14)
- 스피넬 구조를 가지는 리튬망간산화물을 포함하는 양극;
음극; 및
전해질을 포함하며,
상기 스피넬 구조를 가지는 리튬망간산화물이, 충전된 상태에서 50℃ 이상의 온도에서 7일 이상 보관 후, 라만 스펙트럼에서 590 cm-1 피크 대 660cm-1 피크의 강도비 I(660)/I(590)가 0 내지 2이며,
상기 전해질이 고유전율 용매와 저비점 용매의 1:9 내지 4:6의 부피비 혼합 용매 및 리튬염 0.5 내지 2M을 포함하는 리튬전지. - 제 1 항에 있어서, 상기 리튬망간산화물의 라만 스펙트럼에서 590 cm-1 피크 대 660cm-1 피크의 강도비 I(660)/I(590)가 0 내지 1.5를 나타내는 리튬전지.
- 제 1 항에 있어서, 상기 리튬망간산화물의 라만 스펙트럼에서 590 cm-1 피크 대 660cm-1 피크의 면적비 A(660)/A(590)이 0 내지 2인 리튬전지.
- 제 1 항에 있어서, 상기 리튬망간산화물의 1차 입자 직경이 1 내지 3㎛인 리튬전지.
- 제 1 항에 있어서, 상기 리튬망간산화물의 2차 입자 평균 입경(D50)이 10 내지 20㎛인 리튬전지.
- 제 1 항에 있어서, 상기 리튬망간산화물의 비표면적이 0.2 내지 0.4 m2/g인 리튬전지.
- 제 1 항에 있어서, 상기 리튬망간산화물이 하기 화학식 1로 표시되는 리튬전지:
<화학식 1>
LixMn2-y-zMyMezO4-aFa
상기 식에서, 0.9≤x≤1.4, 0≤y≤1, 0≤z≤1, 0≤y+z≤1, 0≤a≤1이며,
상기 M이 Al, Co, Ni, Cr, Fe, Zn, Mg 및 Li로 이루어진 군에서 선택된 하나 이상의 금속이고,
상기 Me가 B 또는 V 이다. - 제 1 항에 있어서, 상기 리튬망간산화물이 하기 화학식 2로 표시되는 리튬전지:
<화학식 2>
Lix+zMn2-y-zAlyO4
상기 식에서, 0.9≤x≤1.4, 0≤y≤1, 0≤z≤1이다. - 제 1 항에 있어서, 상기 양극이 하기 화학식 3으로 표시되는 리튬복합산화물을 추가적으로 포함하는 리튬전지:
<화학식 3>
Li[LixMeyM'z]O2+d
상기 식에서, x+y+z=1, 0≤x<0.33, 0≤z≤0.15, 0≤d≤0.1이며,
상기 Me가 Mn, V, Cr, Fe, Co, Ni, Al 및 B로 이루어진 군에서 선택된 하나 이상의 금속이며,
상기 M'가 B, Al, Mg, Si, Fe, V, Cr, Cu, Zn, Ga 및 W로 이루어진 군에서 선택된 하나 이상의 금속이다. - 제 1 항에 있어서, 상기 양극이 하기 화학식 4로 표시되는 리튬복합산화물을 추가적으로 포함하는 리튬전지:
<화학식 4>
LiaCobMncMdNi1-(b+c+d)O2+d
상기 식에서, 1≤a≤1.33,0.1≤b≤0.5,0.05≤c≤0.4,0.01≤d≤0.4,0.05≤b+c+d≤0.5이며,
상기 M이 B, Al, Mg, Si, Fe, V, Cr, Cu, Zn, Ga 및 W로 이루어진 군에서 선택된 하나 이상의 금속이다. - 제 1 항에 있어서, 상기 고유전율 용매가 에틸렌 카보네이트, 프로필렌 카보네이트, 부틸렌 카보네이트 및 감마 부티로락톤으로 구성된 군으로부터 선택된 하나 이상인 것을 특징으로 하는 리튬전지.
- 제 2 항에 있어서, 상기 저비점 용매가 디메틸 카보네이트, 에틸메틸 카보네이트, 디에틸 카보네이트, 디프로필 카보네이트, 디메톡시에탄, 디에톡시에탄 및 지방산 에스테르 유도체로 구성된 군으로 선택된 하나 이상인 것을 특징으로 하는 리튬전지.
- 제 1 항에 있어서, 상기 리튬염이 LiPF6, LiBF4, LiSbF6, LiAsF6, LiClO4, LiCF3SO3, Li(CF3SO2)2N, LiC4F9SO3, LiAlO2, LiAlCl4, LiN(CxF2x+1SO2)(CyF2y+1SO2)(단 x,y는 자연수), LiCl, LiI 및 이들의 혼합물로 이루어진 군에서 선택되는 리튬전지.
- 제 1 항에 있어서, 상기 음극은 탄소계 재료를 포함하는 리튬전지.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120022028A KR20130100625A (ko) | 2012-03-02 | 2012-03-02 | 리튬전지 |
| US13/674,475 US20130230782A1 (en) | 2012-03-02 | 2012-11-12 | Lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120022028A KR20130100625A (ko) | 2012-03-02 | 2012-03-02 | 리튬전지 |
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| KR20130100625A true KR20130100625A (ko) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020120022028A Ceased KR20130100625A (ko) | 2012-03-02 | 2012-03-02 | 리튬전지 |
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| US (1) | US20130230782A1 (ko) |
| KR (1) | KR20130100625A (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016209014A1 (ko) * | 2015-06-26 | 2016-12-29 | 주식회사 엘지화학 | 리튬 이차전지의 제조방법 및 이를 사용하여 제조되는 리튬 이차전지 |
| US20210242707A1 (en) * | 2020-01-30 | 2021-08-05 | Samsung Sdi Co., Ltd. | Method for charging battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4546452A1 (en) * | 2022-06-30 | 2025-04-30 | Ningde Amperex Technology Limited | Electrochemical device and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7316862B2 (en) * | 2002-11-21 | 2008-01-08 | Hitachi Maxell, Ltd. | Active material for electrode and non-aqueous secondary battery using the same |
| JP2006054159A (ja) * | 2004-07-15 | 2006-02-23 | Sumitomo Metal Mining Co Ltd | 非水系二次電池用正極活物質およびその製造方法 |
| US20110003206A1 (en) * | 2009-09-29 | 2011-01-06 | Ngk Insulators, Ltd. | Positive electrode active element and lithium secondary battery |
| KR101147240B1 (ko) * | 2009-11-10 | 2012-05-21 | 삼성에스디아이 주식회사 | 리튬 이차 전지 |
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2012
- 2012-03-02 KR KR1020120022028A patent/KR20130100625A/ko not_active Ceased
- 2012-11-12 US US13/674,475 patent/US20130230782A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016209014A1 (ko) * | 2015-06-26 | 2016-12-29 | 주식회사 엘지화학 | 리튬 이차전지의 제조방법 및 이를 사용하여 제조되는 리튬 이차전지 |
| US10418670B2 (en) | 2015-06-26 | 2019-09-17 | Lg Chem, Ltd. | Method of manufacturing lithium secondary battery and lithium secondary battery manufactured by the same |
| US20210242707A1 (en) * | 2020-01-30 | 2021-08-05 | Samsung Sdi Co., Ltd. | Method for charging battery |
| US11575272B2 (en) * | 2020-01-30 | 2023-02-07 | Samsung Sdi Co., Ltd. | Method for charging battery |
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| US20130230782A1 (en) | 2013-09-05 |
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