JP2014517480A - 出力特性が向上した複合正極活物質、及びこれを含む二次電池、電池モジュール及び電池パック - Google Patents
出力特性が向上した複合正極活物質、及びこれを含む二次電池、電池モジュール及び電池パック Download PDFInfo
- Publication number
- JP2014517480A JP2014517480A JP2014513463A JP2014513463A JP2014517480A JP 2014517480 A JP2014517480 A JP 2014517480A JP 2014513463 A JP2014513463 A JP 2014513463A JP 2014513463 A JP2014513463 A JP 2014513463A JP 2014517480 A JP2014517480 A JP 2014517480A
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- JP
- Japan
- Prior art keywords
- positive electrode
- lithium
- active material
- electrode active
- composite positive
- 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.)
- Granted
Links
- 239000007774 positive electrode material Substances 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 38
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910002102 lithium manganese oxide Inorganic materials 0.000 claims abstract description 32
- 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 32
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 20
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 32
- 229910052759 nickel Inorganic materials 0.000 claims description 16
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 12
- 239000011572 manganese Substances 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052720 vanadium Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 4
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical compound [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 claims description 3
- BVPMZCWLVVIHKO-UHFFFAOYSA-N lithium cobalt(2+) manganese(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Co+2].[Li+] BVPMZCWLVVIHKO-UHFFFAOYSA-N 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
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- OGCCXYAKZKSSGZ-UHFFFAOYSA-N [Ni]=O.[Mn].[Li] Chemical compound [Ni]=O.[Mn].[Li] OGCCXYAKZKSSGZ-UHFFFAOYSA-N 0.000 claims 1
- 239000010936 titanium Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- -1 Denka black Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910006404 SnO 2 Inorganic materials 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
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- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 4
- 229910016363 Ni0.33Co0.33Mn0.33O2 Inorganic materials 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000733 Li alloy Inorganic materials 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
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- 238000007599 discharging Methods 0.000 description 3
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- 238000001035 drying Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229910015645 LiMn Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical class [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
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- 239000002002 slurry Substances 0.000 description 2
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- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
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- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910016087 LiMn0.5Ni0.5O2 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910012513 LiSbF 6 Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- QMHAHUAQAJVBIW-UHFFFAOYSA-N [methyl(sulfamoyl)amino]methane Chemical compound CN(C)S(N)(=O)=O QMHAHUAQAJVBIW-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
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- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000006231 channel black 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
- 230000008021 deposition Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000011883 electrode binding agent Substances 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N methyl acetate Chemical compound COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- JEMDLNFQNCQAKN-UHFFFAOYSA-N nickel;oxomanganese Chemical class [Ni].[Mn]=O JEMDLNFQNCQAKN-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
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- 239000011591 potassium Substances 0.000 description 1
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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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1228—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [MnO2]n-, e.g. LiMnO2, Li[MxMn1-x]O2
-
- 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
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Abstract
さらに、本発明は、前記複合正極活物質を含み、出力特性が向上した二次電池、電池モジュール及び電池パックを提供する。
Description
a[Li2MnO3]・(1-a)[LiMlO2] (式1)
前記式において、0<a<1であり、前記MlはMn、Ni、Co、Fe、Cr、V、Cu、Zn、Ti、Al、Mg及びBからなる群で選ばれた一種又は二種以上の金属である;
Li(NixCoyAlZ)O2 (式2)
前記式において、前記x、y、zはそれぞれ独立して0<x、y、z<1の範囲から選択され、x+y+z=1である。
a[Li2MnO3]・(1-a)[LiMlO2] (式1)
前記式において、0<a<1であり、前記MlはMn、Ni、Co、Fe、Cr、V、Cu、Zn、Ti、Al、Mg及びBからなる群で選ばれた一種又は二種以上の金属である;
Li(NixCoyAlZ)O2 (式2)
前記式において、前記x、y、zはそれぞれ独立して0<x、y、z<1の範囲から選択され、x+y+z=1である。
(充電)Li2Mn4+O3 → 2Li+ + 2e−+1/2O2 +Mn4+O2
(放電)Mn4+O2 + Li+ + e− → LiMn3+O2
LiM2O2 (式3)
(1)充電状態に応じた出力評価
実施例1乃至3及び比較例1によって製造されたポリマー型リチウム二次電池の充電状態(SOC)に応じた出力(Power)を測定し、その結果を図1に示した。
実施例1乃至3及び比較例1によって製造されたポリマー型リチウム二次電池の充電状態(SOC)による抵抗(Resistance)を測定し、その結果を図2に示した。
実施例3及び比較例1によって製造されたポリマー型リチウム二次電池の充放電電位を測定し、その結果を図3に示した。
Claims (9)
- 下記化学式1で表される層状構造のリチウムマンガン酸化物と、下記化学式2で表されるリチウム含有金属酸化物を含んでなる、複合正極活物質。
a[Li2MnO3]・(1-a)[LiMlO2] (式1)
〔前記式1において、
0<a<1であり、
MlはMn、Ni、Co、Fe、Cr、V、Cu、Zn、Ti、Al、Mg及びBからなる群で選ばれた一種又は二種以上の金属である。〕
Li(NixCoyAlZ)O2 (式2)
〔前記式2において、
前記x、y、zはそれぞれ独立して0<x、y、z<1の範囲から選択され、
x+y+z=1である。〕 - 前記化学式1で表される層状構造のリチウムマンガン酸化物に対する前記化学式2で表されるリチウム含有金属酸化物の混合比が、99:1乃至50:50の重量比であることを特徴とする、請求項1に記載の複合正極活物質。
- 前記化学式1で表される層状構造のリチウムマンガン酸化物が、前記化学式1におけるMlがMn、NiとCoを含んでいることを特徴とする、請求項1又は2に記載の複合正極活物質。
- 前記化学式2において、
xが、0.45乃至0.90であり、
yが、0.05乃至0.35であり、
zが、0.005乃至0.20であることを特徴とする、請求項1〜3の何れか一項に記載の複合正極活物質。 - 前記複合正極活物質が、リチウムコバルト酸化物;リチウムニッケル酸化物;リチウムマンガン酸化物;リチウムコバルト−ニッケル酸化物;リチウムコバルト−マンガン酸化物;リチウムマンガン−ニッケル酸化物;リチウムコバルト−ニッケル−マンガン酸化物;及び、これら酸化物にAl、Mg、Ni、Co、Fe、Cr、V、Ti、Cu、B、Ca、Zn、Zr、Nb、Mo、Sr、Sb、W、Ti及びBiからなる群から選ばれる1種以上の他元素が置換又はドープされた酸化物;からなる群から選択された一種以上のものをさらに含んでなることを特徴とする、請求項1〜4の何れか一項に記載の複合正極活物質。
- 請求項1〜5の何れか一項に記載の複合正極活物質を備えてなる、二次電池。
- 請求項6に記載の二次電池を備えた、電池モジュール。
- 請求項7に記載の電池モジュールを備えた、電池パック。
- 前記電池パックが、電気車(Electric Vehicle、EV)、ハイブリッド電気車(Hybrid Electric Vehicle、HEV)及びプラグインハイブリッド電気車(Plug-in Hybrid Electric Vehicle、PHEV)からなる群から選択された電気車;イーバイク(E−Bike)、イースクーター(E−scooter);電気ゴルフカート(Electric Golf Cart);電気トラック;及び電気商用車からなる中大型デバイス群から選択された一つ以上の電源として使用されることを特徴とする、請求項8に記載の電池パック。
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Also Published As
Publication number | Publication date |
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US8840815B2 (en) | 2014-09-23 |
KR101515678B1 (ko) | 2015-04-28 |
WO2013085317A1 (ko) | 2013-06-13 |
CN107452942B (zh) | 2020-12-01 |
US20140356715A1 (en) | 2014-12-04 |
CN107452942A (zh) | 2017-12-08 |
EP2662916A1 (en) | 2013-11-13 |
JP5880989B2 (ja) | 2016-03-09 |
EP2662916B1 (en) | 2018-08-08 |
KR20130063699A (ko) | 2013-06-17 |
CN103443974A (zh) | 2013-12-11 |
US20130228718A1 (en) | 2013-09-05 |
EP2662916A4 (en) | 2015-04-29 |
US9614219B2 (en) | 2017-04-04 |
PL2662916T3 (pl) | 2019-05-31 |
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