JP2022508147A - リチウム二次電池用正極材、これを含む正極及びリチウム二次電池 - Google Patents
リチウム二次電池用正極材、これを含む正極及びリチウム二次電池 Download PDFInfo
- Publication number
- JP2022508147A JP2022508147A JP2021527945A JP2021527945A JP2022508147A JP 2022508147 A JP2022508147 A JP 2022508147A JP 2021527945 A JP2021527945 A JP 2021527945A JP 2021527945 A JP2021527945 A JP 2021527945A JP 2022508147 A JP2022508147 A JP 2022508147A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- particle size
- size particles
- electrode material
- transition metal
- 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 82
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 73
- 239000002245 particle Substances 0.000 claims abstract description 175
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000002131 composite material Substances 0.000 claims abstract description 46
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract description 44
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 20
- 150000003624 transition metals Chemical class 0.000 claims abstract description 19
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 10
- 239000010941 cobalt Substances 0.000 claims abstract description 10
- 238000009826 distribution Methods 0.000 claims abstract description 7
- 230000002902 bimodal effect Effects 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 27
- 239000003792 electrolyte Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 229910052772 Samarium Inorganic materials 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 23
- 239000011572 manganese Substances 0.000 description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 229910013716 LiNi Inorganic materials 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 16
- 239000010410 layer Substances 0.000 description 13
- -1 lithium transition metal Chemical class 0.000 description 13
- 239000008151 electrolyte solution Substances 0.000 description 12
- 239000011230 binding agent Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000007773 negative electrode material Substances 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 7
- 235000002639 sodium chloride Nutrition 0.000 description 7
- 239000011780 sodium chloride Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 208000035126 Facies Diseases 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 5
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 229910003002 lithium salt Inorganic materials 0.000 description 5
- 159000000002 lithium salts Chemical class 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 229910021383 artificial graphite Inorganic materials 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910021382 natural graphite Inorganic materials 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 3
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 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 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000113 differential scanning calorimetry Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- 229940032159 propylene carbonate Drugs 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003660 carbonate based solvent Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 2
- 239000002931 mesocarbon microbead Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 239000002296 pyrolytic carbon Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- DSMUTQTWFHVVGQ-UHFFFAOYSA-N 4,5-difluoro-1,3-dioxolan-2-one Chemical compound FC1OC(=O)OC1F DSMUTQTWFHVVGQ-UHFFFAOYSA-N 0.000 description 1
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910010090 LiAlO 4 Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910015044 LiB Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910020813 Sn-C Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910018732 Sn—C Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 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
- 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
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- IPZJQDSFZGZEOY-UHFFFAOYSA-N dimethylmethylene Chemical compound C[C]C IPZJQDSFZGZEOY-UHFFFAOYSA-N 0.000 description 1
- 150000004862 dioxolanes Chemical class 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011357 graphitized carbon fiber Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- 229910000686 lithium vanadium oxide Inorganic materials 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011302 mesophase pitch Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 150000005181 nitrobenzenes Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- CIBMHJPPKCXONB-UHFFFAOYSA-N propane-2,2-diol Chemical compound CC(C)(O)O CIBMHJPPKCXONB-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000001008 quinone-imine dye Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910021435 silicon-carbon complex Inorganic materials 0.000 description 1
- 239000011867 silicon-carbon complex material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 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
- 239000011787 zinc oxide Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Images
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
- H01M4/364—Composites as mixtures
-
- 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
-
- 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
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Secondary Cells (AREA)
Abstract
Description
本出願は、2018年12月10日に出願された韓国特許出願第10-2018-0158017号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
したがって、エネルギー密度及び容量特性に優れながらも高温寿命特性に優れた正極材の開発が要求されている。
先ず、本発明に係る正極材に対して説明する。
Lix[NiyCozAlwM1 v]O2
Lix[NiyCozAlwMnv]O2
Lia[NibCocM2 dM3 e]O2
前記のような本発明に係る正極材は、リチウム二次電池の正極の製造に有用に用いられてよい。
実施例1
平均粒径(D50)が5μmのLiNi0.81Co0.05Mn0.12Al0.02O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Aを形成した。
平均粒径(D50)が5μmのLiNi0.81Co0.08Mn0.09Al0.02O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Bを形成した。
平均粒径(D50)が5μmのLiNi0.81Co0.05Mn0.11Al0.03O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Cを形成した。
平均粒径(D50)が5μmのLiNi0.83Co0.11Mn0.6O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Dを形成した。
平均粒径(D50)が5μmのLiNi0.83Co0.05Mn0.08Al0.04O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Eを形成した。
平均粒径(D50)が5μmのLiNi0.82Co0.11Mn0.06Al0.01O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Fを形成した。
平均粒径(D50)が5μmのLiNi0.70Co0.15Mn0.10Al0.05O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Gを形成した。
平均粒径(D50)が5μmのLiNi0.86Co0.10Mn0.02Al0.02O2と平均粒径(D50)が15μmのLiNi0.83Co0.08Mn0.07Al0.02O2を2:8の重量比で混合し、正極材Hを形成した。
前記実施例1~3及び比較例1~5によって製造された正極材、カーボンブラック導電材及びPVdFバインダーを、N‐メチルピロリドン溶媒中で重量比で96.5:1.5:2.0の比率で混合して正極合剤を製造し、これをアルミニウム集電体の一面に塗布した後、130℃で乾燥後、圧延して正極を製造した。
前記のように、実施例1~3及び比較例1~5の正極材を用いて製造されたそれぞれのコインハーフセルに0.2Cの電流を加えて4.25Vまで充電した後、2.5Vまで放電してから、再び4.25Vまで0.2Cの電流で完全充電させた。その後、完全充電されたコインセルを分解して正極を回収し、回収された正極をジメチルカーボネートで30秒間洗浄して電極の表面に残っている電解液を除去し、乾燥させた。乾燥された電極を示差走査熱量測定装置(Setaram社製のHP‐DSC)のパン(pan)の大きさに合うように打ち抜き、前記コインセルに投入された電解液と同一の電解液20μLとともに前記パンに投入した後、パンをシーリングした。その後、25℃から400℃まで毎分10℃ずつ昇温しながら発熱量を測定した。
実施例1~3及び比較例1~5の正極材を用いて製造されたコインハーフセルに対して連続充電時の電流漏洩量を測定した。具体的には、前記コインハーフセルを50℃で0.2C/0.2Cの条件で充放電した後、CC‐CVモードで4.7Vとなるまで0.2Cで充電し、120時間に終了設定をした後、120時間の間の容量を時間で割って平均の漏洩電流(leak current)を求めた。測定の結果は、図2に示した。
<フルセルの製造>
実施例1~3及び比較例1~5により製造されたそれぞれの正極材とカーボンブラック導電材とPVdFバインダーをN‐メチルピロリドン溶媒中で96.5:1.5:2.0の重量比率で混合して正極合剤を製造し、これをアルミニウム集電体の一面に塗布した後、130℃で乾燥後、圧延して正極を製造した。
Claims (10)
- 平均粒径(D50)が異なる大粒径粒子及び小粒径粒子を含むバイモーダル粒度分布を有する正極材であり、
前記大粒径粒子は、全遷移金属のうちニッケルの含有量が80原子%以上のリチウム複合遷移金属酸化物であり、
前記小粒径粒子は、ニッケル、コバルト、及びアルミニウムを含み、全遷移金属のうちニッケルの含有量が80原子%から85原子%であり、アルミニウムに対するコバルトの原子の比率(Co/Al)が1.5から5のリチウム複合遷移金属酸化物である、正極材。 - 前記小粒径粒子は、下記[化学式1]で表されるリチウム複合遷移金属酸化物であり、
[化学式1]
Lix[NiyCozAlwM1 v]O2
前記化学式1中、前記M1は、Mn、W、Cu、Fe、Ba、V、Cr、Ti、Zr、Zn、In、Ta、Y、La、Sr、Ga、Sc、Gd、Sm、Ca、Ce、Nb、Mg、B、及びMoよりなる群から選択される1種以上であり、0.9≦x≦1.5、0.8≦y≦0.85、0<z≦0.1、0<w≦0.1、1.5≦z/w≦5、0≦v<0.2である、請求項1に記載の正極材。 - 前記小粒径粒子は、下記[化学式2]で表されるリチウム複合遷移金属酸化物であり、
[化学式2]
Lix[NiyCozAlwMnv]O2
前記化学式2中、0.9≦x≦1.5、0.8≦y≦0.85、0<z≦0.1、0<w≦0.1、1.5≦z/w≦5、0≦v<0.2である、請求項1に記載の正極材。 - 前記大粒径粒子は、下記化学式3で表されるリチウム複合遷移金属酸化物であり、
[化学式3]
Lia[NibCocM2 dM3 e]O2
前記化学式3中、前記M2は、Mn及びAlから選択される1種以上であり、前記M3は、W、Cu、Fe、Ba、V、Cr、Ti、Zr、Zn、In、Ta、Y、La、Sr、Ga、Sc、Gd、Sm、Ca、Ce、Nb、Mg、B、及びMoよりなる群から選択される1種以上であり、0.9≦a≦1.5、0.8≦b<1、0<c≦0.15、0<d<0.2、0≦e<0.2である、請求項1から3のいずれか一項に記載の正極材。 - 前記化学式3中、前記M2がAld1Mnd2であり、0.9≦a≦1.5、0.8≦b<1、0<c≦0.1、0<d1≦0.1、0<d2<0.2であり、1.5≦c/d1≦5である、請求項4に記載の正極材。
- 前記小粒径粒子の平均粒径(D50)が2から8μmである、請求項1から5のいずれか一項に記載の正極材。
- 前記大粒径粒子の平均粒径(D50)が10から20μmである、請求項1から6のいずれか一項に記載の正極材。
- 前記小粒径粒子と大粒径粒子が1:9から5:5の重量比率で含まれる、請求項1から7のいずれか一項に記載の正極材。
- 正極集電体と、前記正極集電体上に形成される正極活物質層を含み、
前記正極活物質層は、請求項1から8のいずれか一項に記載の正極材を含む、正極。 - 請求項9に記載の正極、
負極、
前記正極と前記負極との間に介在される分離膜、及び
電解質を含むリチウム二次電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020180158017A KR102453274B1 (ko) | 2018-12-10 | 2018-12-10 | 리튬이차전지용 양극재, 이를 포함하는 양극 및 리튬이차전지 |
KR10-2018-0158017 | 2018-12-10 | ||
PCT/KR2019/017027 WO2020122497A1 (ko) | 2018-12-10 | 2019-12-04 | 리튬 이차전지용 양극재, 이를 포함하는 양극 및 리튬 이차전지 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022508147A true JP2022508147A (ja) | 2022-01-19 |
JP7191419B2 JP7191419B2 (ja) | 2022-12-19 |
Family
ID=71075673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021527945A Active JP7191419B2 (ja) | 2018-12-10 | 2019-12-04 | リチウム二次電池用正極材、これを含む正極及びリチウム二次電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220059832A1 (ja) |
EP (1) | EP3869590A4 (ja) |
JP (1) | JP7191419B2 (ja) |
KR (1) | KR102453274B1 (ja) |
CN (1) | CN113169320B (ja) |
WO (1) | WO2020122497A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102339704B1 (ko) * | 2020-06-18 | 2021-12-15 | 주식회사 에코프로비엠 | 양극 활물질 및 이를 포함하는 리튬 이차전지 |
KR102479276B1 (ko) * | 2020-10-14 | 2022-12-20 | 주식회사 에코프로비엠 | 양극 활물질 및 이를 포함하는 리튬 이차전지 |
KR102473536B1 (ko) * | 2020-10-30 | 2022-12-02 | 삼성에스디아이 주식회사 | 니켈계 리튬 금속 복합 산화물, 그 제조방법, 이를 포함한 양극 및 리튬이차전지 |
CN114551857A (zh) * | 2020-11-25 | 2022-05-27 | 宁德新能源科技有限公司 | 正极材料及使用其的电化学装置和电子设备 |
KR102580745B1 (ko) * | 2020-12-21 | 2023-09-19 | 포스코홀딩스 주식회사 | 양극 활물질 및 이를 포함하는 리튬 이차 전지 |
KR102580744B1 (ko) * | 2020-12-21 | 2023-09-19 | 포스코홀딩스 주식회사 | 양극 활물질 및 이를 포함하는 리튬 이차 전지 |
CN112635754B (zh) * | 2020-12-22 | 2021-11-16 | 北京当升材料科技股份有限公司 | 多元正极材料及其制备方法和应用 |
US20230369578A1 (en) * | 2020-12-23 | 2023-11-16 | Lg Chem, Ltd. | Positive Electrode Active Material, Method of Preparing the Same, and Positive Electrode Material, Positive Electrode, and Lithium Secondary Battery Which Include the Same |
KR20230030694A (ko) * | 2021-08-25 | 2023-03-07 | 주식회사 엘지화학 | 양극재, 이의 제조방법 및 이를 포함하는 리튬이차전지 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013065468A (ja) * | 2011-09-16 | 2013-04-11 | Panasonic Corp | リチウムイオン二次電池 |
WO2014061399A1 (ja) * | 2012-10-15 | 2014-04-24 | 日本碍子株式会社 | リチウム二次電池用正極活物質及びそれを用いた正極 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060091486A (ko) * | 2005-02-15 | 2006-08-21 | 삼성에스디아이 주식회사 | 양극 활물질, 그 제조 방법 및 이를 채용한 양극과 리튬 전지 |
KR101403828B1 (ko) * | 2007-03-05 | 2014-06-03 | 도다 고교 가부시끼가이샤 | 비수전해질 이차 전지용 Li-Ni 복합 산화물 입자 분말 및 그의 제조 방법 및 비수전해질 이차 전지 |
KR20120126021A (ko) * | 2011-05-10 | 2012-11-20 | 니폰 가가쿠 고교 가부시키가이샤 | 리튬 2차 전지용 양극 활물질 분체, 그 제조 방법 및 리튬 2차 전지 |
KR101669113B1 (ko) * | 2012-05-08 | 2016-10-25 | 삼성에스디아이 주식회사 | 복합양극활물질, 이를 채용한 양극 및 리튬 전지 |
KR101718057B1 (ko) * | 2012-08-02 | 2017-03-20 | 삼성에스디아이 주식회사 | 양극 활물질 및 이를 채용한 양극과 리튬전지 |
JP2014123529A (ja) * | 2012-12-21 | 2014-07-03 | Jfe Mineral Co Ltd | リチウム二次電池用正極材料 |
US20150340686A1 (en) * | 2012-12-26 | 2015-11-26 | Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) | Cathode active material for lithium secondary battery |
KR101593005B1 (ko) * | 2013-01-31 | 2016-02-11 | 주식회사 엘지화학 | 내구성이 향상된 이차전지용 양극 활물질 및 이를 포함하는 리튬 이차전지 |
KR102325781B1 (ko) * | 2013-05-22 | 2021-11-15 | 스미토모 긴조쿠 고잔 가부시키가이샤 | 비수계 전해질 이차 전지용 정극 활물질과 그의 제조 방법 |
WO2014189329A1 (ko) * | 2013-05-23 | 2014-11-27 | 주식회사 엘지화학 | 다층의 활물질층을 포함하는 리튬 이차전지 |
KR101785262B1 (ko) * | 2013-07-08 | 2017-10-16 | 삼성에스디아이 주식회사 | 양극 활물질, 그 제조방법, 이를 채용한 양극 및 리튬이차전지 |
KR101991254B1 (ko) * | 2013-12-30 | 2019-06-21 | 주식회사 에코프로비엠 | 고출력 장수명을 나타내는 혼합 양극활물질 |
KR101761367B1 (ko) | 2014-12-19 | 2017-07-25 | 주식회사 엘지화학 | 혼합 양극활물질, 이를 포함하는 양극 및 이차전지 |
KR102012427B1 (ko) * | 2015-11-30 | 2019-08-21 | 주식회사 엘지화학 | 이차전지용 양극활물질, 이를 포함하는 이차전지용 양극 및 이차전지 |
KR102101006B1 (ko) * | 2015-12-10 | 2020-04-14 | 주식회사 엘지화학 | 이차전지용 양극 및 이를 포함하는 이차전지 |
-
2018
- 2018-12-10 KR KR1020180158017A patent/KR102453274B1/ko active IP Right Grant
-
2019
- 2019-12-04 US US17/298,818 patent/US20220059832A1/en active Pending
- 2019-12-04 WO PCT/KR2019/017027 patent/WO2020122497A1/ko unknown
- 2019-12-04 CN CN201980077713.9A patent/CN113169320B/zh active Active
- 2019-12-04 JP JP2021527945A patent/JP7191419B2/ja active Active
- 2019-12-04 EP EP19897077.4A patent/EP3869590A4/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013065468A (ja) * | 2011-09-16 | 2013-04-11 | Panasonic Corp | リチウムイオン二次電池 |
WO2014061399A1 (ja) * | 2012-10-15 | 2014-04-24 | 日本碍子株式会社 | リチウム二次電池用正極活物質及びそれを用いた正極 |
Also Published As
Publication number | Publication date |
---|---|
EP3869590A1 (en) | 2021-08-25 |
JP7191419B2 (ja) | 2022-12-19 |
KR20200070650A (ko) | 2020-06-18 |
EP3869590A4 (en) | 2022-01-19 |
US20220059832A1 (en) | 2022-02-24 |
CN113169320B (zh) | 2024-04-19 |
CN113169320A (zh) | 2021-07-23 |
WO2020122497A1 (ko) | 2020-06-18 |
KR102453274B1 (ko) | 2022-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7066223B2 (ja) | リチウム二次電池用正極材、これを含む正極及びリチウム二次電池 | |
JP6612996B2 (ja) | 二次電池用正極及びこれを含むリチウム二次電池 | |
JP7062173B2 (ja) | 二次電池用正極活物質、その製造方法、及びこれを含むリチウム二次電池 | |
JP7048860B2 (ja) | 二次電池用正極活物質、その製造方法及びそれを含むリチウム二次電池 | |
JP7034409B2 (ja) | リチウム二次電池用正極活物質、その製造方法、それを含むリチウム二次電池用正極及びリチウム二次電池 | |
JP7191419B2 (ja) | リチウム二次電池用正極材、これを含む正極及びリチウム二次電池 | |
JP6633659B2 (ja) | 二次電池用正極活物質及びこれを含む二次電池 | |
JP2020537316A (ja) | 二次電池用正極材及びこれを含むリチウム二次電池 | |
JP6771804B2 (ja) | 二次電池用正極活物質、その製造方法、及びそれを含むリチウム二次電池 | |
JP6884829B6 (ja) | 正極活物質およびこれを含むリチウム二次電池 | |
JP7062154B2 (ja) | リチウム二次電池用正極、この製造方法及びこれを含むリチウム二次電池 | |
JP7045598B2 (ja) | リチウム二次電池用正極、その製造方法及びそれを含むリチウム二次電池 | |
JP7020721B2 (ja) | リチウム二次電池用正極活物質、その製造方法、それを含むリチウム二次電池用正極及びリチウム二次電池 | |
JP7098185B2 (ja) | 二次電池用正極活物質の製造方法 | |
JP7046410B2 (ja) | 二次電池用正極活物質の製造方法、及びこれを用いる二次電池 | |
JP2022532110A (ja) | リチウム二次電池用正極活物質の製造方法および前記製造方法により製造された正極活物質 | |
JP2021158105A (ja) | 正極活物質およびこれを含むリチウム二次電池 | |
JP6884238B2 (ja) | リチウム二次電池用正極活物質の製造方法、これによって製造された正極活物質、これを含むリチウム二次電池用正極、及びリチウム二次電池 | |
JP7497903B2 (ja) | 二次電池用正極活物質およびこれを含むリチウム二次電池 | |
KR20220110122A (ko) | 양극 및 이를 포함하는 리튬 이차전지 | |
JP2021527921A (ja) | リチウム二次電池用正極活物質及びリチウム二次電池 | |
JP7076878B2 (ja) | リチウムコバルト系正極活物質、その製造方法、これを含む正極及び二次電池 | |
JP2021525449A (ja) | リチウム二次電池用正極活物質及びリチウム二次電池 | |
JP2020525991A (ja) | リチウム二次電池用正極活物質、その製造方法、それを含むリチウム二次電池用正極及びリチウム二次電池 | |
JP2023500548A (ja) | リチウム二次電池用電極活物質の劣化診断方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210519 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20211222 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220324 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20220531 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220627 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220914 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20221107 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20221130 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7191419 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |