KR102642860B1 - 구상화 흑연, 피복 구상화 흑연, 리튬 이온 2차 전지용 부극 및 리튬 2차 전지 - Google Patents
구상화 흑연, 피복 구상화 흑연, 리튬 이온 2차 전지용 부극 및 리튬 2차 전지 Download PDFInfo
- Publication number
- KR102642860B1 KR102642860B1 KR1020217037648A KR20217037648A KR102642860B1 KR 102642860 B1 KR102642860 B1 KR 102642860B1 KR 1020217037648 A KR1020217037648 A KR 1020217037648A KR 20217037648 A KR20217037648 A KR 20217037648A KR 102642860 B1 KR102642860 B1 KR 102642860B1
- Authority
- KR
- South Korea
- Prior art keywords
- graphite
- less
- negative electrode
- coated
- secondary battery
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 98
- 239000010439 graphite Substances 0.000 title claims abstract description 97
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 229910052744 lithium Inorganic materials 0.000 title description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title description 13
- 239000002245 particle Substances 0.000 claims abstract description 34
- 239000011164 primary particle Substances 0.000 claims abstract description 17
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 239000011163 secondary particle Substances 0.000 claims description 36
- 239000011148 porous material Substances 0.000 claims description 20
- 239000003575 carbonaceous material Substances 0.000 claims description 7
- 229910021382 natural graphite Inorganic materials 0.000 claims description 5
- 239000007773 negative electrode material Substances 0.000 abstract description 15
- 238000000227 grinding Methods 0.000 description 35
- 238000000034 method Methods 0.000 description 28
- 239000002994 raw material Substances 0.000 description 24
- 238000010298 pulverizing process Methods 0.000 description 23
- 239000000203 mixture Substances 0.000 description 21
- 239000011255 nonaqueous electrolyte Substances 0.000 description 20
- 238000010304 firing Methods 0.000 description 15
- 238000002156 mixing Methods 0.000 description 14
- 230000002093 peripheral effect Effects 0.000 description 14
- 239000002243 precursor Substances 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000012298 atmosphere Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 10
- 238000002591 computed tomography Methods 0.000 description 10
- 229940021013 electrolyte solution Drugs 0.000 description 10
- 238000007600 charging Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000012798 spherical particle Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- -1 polytetrafluoroethylene Polymers 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 230000000284 resting effect Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 5
- 229910000314 transition metal oxide Inorganic materials 0.000 description 5
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000005518 polymer electrolyte Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000003775 Density Functional Theory Methods 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229910013870 LiPF 6 Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 239000011294 coal tar pitch Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011245 gel electrolyte Substances 0.000 description 3
- 239000007770 graphite material Substances 0.000 description 3
- 238000009396 hybridization Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910013063 LiBF 4 Inorganic materials 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 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
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012982 microporous membrane Substances 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000011271 tar pitch Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical compound O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- PPDFQRAASCRJAH-UHFFFAOYSA-N 2-methylthiolane 1,1-dioxide Chemical compound CC1CCCS1(=O)=O PPDFQRAASCRJAH-UHFFFAOYSA-N 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910015044 LiB Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013534 LiN(HCF2CF2CH2OSO2)2 Inorganic materials 0.000 description 1
- 229910012741 LiNi0.5Co0.5O2 Inorganic materials 0.000 description 1
- 229910016222 LiNi0.9Co0.1O2 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- AQIHMSVIAGNIDM-UHFFFAOYSA-N benzoyl bromide Chemical compound BrC(=O)C1=CC=CC=C1 AQIHMSVIAGNIDM-UHFFFAOYSA-N 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- BDUPRNVPXOHWIL-UHFFFAOYSA-N dimethyl sulfite Chemical compound COS(=O)OC BDUPRNVPXOHWIL-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- YWXYYJSYQOXTPL-SLPGGIOYSA-N isosorbide mononitrate Chemical compound [O-][N+](=O)O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-SLPGGIOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 150000002642 lithium compounds Chemical class 0.000 description 1
- 229910021450 lithium metal oxide Inorganic materials 0.000 description 1
- 239000011302 mesophase pitch Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011301 petroleum pitch Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical compound C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- 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
- H01M4/58—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
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- 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
-
- 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
-
- 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
- C01P2006/14—Pore volume
-
- 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
- C01P2006/16—Pore diameter
-
- 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
- H01M2004/027—Negative 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)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2020-027822 | 2020-02-21 | ||
| JP2020027822 | 2020-02-21 | ||
| PCT/JP2021/005348 WO2021166812A1 (ja) | 2020-02-21 | 2021-02-12 | 球状化黒鉛、被覆球状化黒鉛、リチウムイオン二次電池用負極およびリチウム二次電池 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20210153693A KR20210153693A (ko) | 2021-12-17 |
| KR102642860B1 true KR102642860B1 (ko) | 2024-02-29 |
Family
ID=77391183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020217037648A Active KR102642860B1 (ko) | 2020-02-21 | 2021-02-12 | 구상화 흑연, 피복 구상화 흑연, 리튬 이온 2차 전지용 부극 및 리튬 2차 전지 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7144625B2 (https=) |
| KR (1) | KR102642860B1 (https=) |
| CN (1) | CN114080702B (https=) |
| TW (1) | TWI747740B (https=) |
| WO (1) | WO2021166812A1 (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7309087B1 (ja) * | 2021-08-17 | 2023-07-14 | Ｊｆｅケミカル株式会社 | 被覆球状化黒鉛、リチウムイオン二次電池用負極およびリチウムイオン二次電池 |
| US12351462B1 (en) | 2024-10-25 | 2025-07-08 | Urbix, Inc. | Graphite shaping and coating devices, systems, and methods |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011036783A (ja) | 2009-08-10 | 2011-02-24 | Earth Technica:Kk | 粉体処理設備および粉体処理方法 |
| JP2014022041A (ja) | 2012-07-12 | 2014-02-03 | Sony Corp | 負極活物質および負極活物質の製造方法、ならびにリチウムイオン電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
| JP2014152043A (ja) | 2013-02-04 | 2014-08-25 | Mitsubishi Chemicals Corp | 黒鉛粒子の球形化処理装置、処理装置により球形化された球形化黒鉛、該球形化黒鉛を含有するリチウムイオン二次電池用負極、及び該負極を備えるリチウムイオン二次電池 |
| JP2014151219A (ja) | 2013-02-04 | 2014-08-25 | Mitsubishi Chemicals Corp | 粉体処理装置、該装置を用いて製造した球形化黒鉛粒子、該球形化黒鉛粒子を含有するリチウムイオン二次電池用負極、及び該負極を備えるリチウムイオン二次電池 |
| JP2016105396A (ja) * | 2014-11-19 | 2016-06-09 | 三菱化学株式会社 | 非水系二次電池用炭素材及び非水系二次電池 |
| JP2018133340A (ja) | 2013-01-29 | 2018-08-23 | Ｊｆｅケミカル株式会社 | 炭素質被覆黒鉛粒子、リチウムイオン二次電池用負極およびリチウムイオン二次電池 |
| JP2019046925A (ja) | 2017-08-31 | 2019-03-22 | 日本カーボン株式会社 | リチウムイオンキャパシタ用負極活物質 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3364378B2 (ja) * | 1996-03-15 | 2003-01-08 | 株式会社東芝 | 非水電解液二次電池および非水電解液二次電池の製造方法 |
| CN201120305Y (zh) * | 2007-10-23 | 2008-09-24 | 湛江市新蓄能源科技有限公司 | 一种用于制备球形石墨超微粉体的全自动生产线 |
| CN101905883B (zh) * | 2010-08-11 | 2013-01-02 | 黑龙江省牡丹江农垦奥宇石墨深加工有限公司 | 一种球形石墨的生产方法 |
| US20130246219A1 (en) | 2012-03-14 | 2013-09-19 | Google Inc. | Ranking and optimizing trips |
| JP2013209256A (ja) | 2012-03-30 | 2013-10-10 | Mitsubishi Chemicals Corp | 複合炭素材及びその製造方法、その複合炭素材を用いた負極並びに蓄電デバイス |
| KR102823784B1 (ko) * | 2014-07-07 | 2025-06-20 | 미쯔비시 케미컬 주식회사 | 탄소재, 탄소재의 제조 방법 및 탄소재를 사용한 비수계 2 차 전지 |
| KR101685832B1 (ko) * | 2014-07-29 | 2016-12-12 | 주식회사 엘지화학 | 흑연 2차 입자 및 이를 포함하는 리튬 이차전지 |
| KR101817418B1 (ko) * | 2015-03-23 | 2018-01-11 | 주식회사 엘지화학 | 음극 활물질 및 이의 제조방법 |
| JP7099325B2 (ja) * | 2016-11-22 | 2022-07-12 | 三菱ケミカル株式会社 | 非水系二次電池用負極材、非水系二次電池用負極及び非水系二次電池 |
| JP7067029B2 (ja) * | 2016-11-22 | 2022-05-16 | 三菱ケミカル株式会社 | 非水系二次電池用負極材、非水系二次電池用負極及び非水系二次電池 |
| CN107768669B (zh) * | 2017-10-13 | 2020-12-01 | 乌兰察布市大盛石墨新材料股份有限公司 | 球形石墨及其制备方法 |
| US11646406B2 (en) * | 2017-12-22 | 2023-05-09 | Tokai Carbon Co., Ltd. | Negative electrode material for lithium-ion secondary battery and method for producing negative electrode material for lithium-ion secondary battery |
| JP7621337B2 (ja) * | 2019-08-21 | 2025-01-24 | シラー リソーシーズ リミテッド | 珪酸塩を含む球状天然黒鉛をベースにしたリチウムイオン電池アノード材料 |
-
2021
- 2021-02-12 WO PCT/JP2021/005348 patent/WO2021166812A1/ja not_active Ceased
- 2021-02-12 CN CN202180003562.XA patent/CN114080702B/zh active Active
- 2021-02-12 JP JP2021552677A patent/JP7144625B2/ja active Active
- 2021-02-12 KR KR1020217037648A patent/KR102642860B1/ko active Active
- 2021-02-19 TW TW110105616A patent/TWI747740B/zh active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011036783A (ja) | 2009-08-10 | 2011-02-24 | Earth Technica:Kk | 粉体処理設備および粉体処理方法 |
| JP2014022041A (ja) | 2012-07-12 | 2014-02-03 | Sony Corp | 負極活物質および負極活物質の製造方法、ならびにリチウムイオン電池、電池パック、電子機器、電動車両、蓄電装置および電力システム |
| JP2018133340A (ja) | 2013-01-29 | 2018-08-23 | Ｊｆｅケミカル株式会社 | 炭素質被覆黒鉛粒子、リチウムイオン二次電池用負極およびリチウムイオン二次電池 |
| JP2014152043A (ja) | 2013-02-04 | 2014-08-25 | Mitsubishi Chemicals Corp | 黒鉛粒子の球形化処理装置、処理装置により球形化された球形化黒鉛、該球形化黒鉛を含有するリチウムイオン二次電池用負極、及び該負極を備えるリチウムイオン二次電池 |
| JP2014151219A (ja) | 2013-02-04 | 2014-08-25 | Mitsubishi Chemicals Corp | 粉体処理装置、該装置を用いて製造した球形化黒鉛粒子、該球形化黒鉛粒子を含有するリチウムイオン二次電池用負極、及び該負極を備えるリチウムイオン二次電池 |
| JP2016105396A (ja) * | 2014-11-19 | 2016-06-09 | 三菱化学株式会社 | 非水系二次電池用炭素材及び非水系二次電池 |
| JP2019046925A (ja) | 2017-08-31 | 2019-03-22 | 日本カーボン株式会社 | リチウムイオンキャパシタ用負極活物質 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2021166812A1 (https=) | 2021-08-26 |
| TW202132218A (zh) | 2021-09-01 |
| JP7144625B2 (ja) | 2022-09-29 |
| KR20210153693A (ko) | 2021-12-17 |
| WO2021166812A1 (ja) | 2021-08-26 |
| CN114080702A (zh) | 2022-02-22 |
| TWI747740B (zh) | 2021-11-21 |
| CN114080702B (zh) | 2024-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102618399B1 (ko) | 피복 구상화 흑연, 리튬 이온 2차 전지용 부극 및 리튬 이온 2차 전지 | |
| JP6285350B2 (ja) | 炭素質被覆黒鉛粒子の製造方法およびリチウムイオン二次電池用負極材料の製造方法 | |
| KR102642860B1 (ko) | 구상화 흑연, 피복 구상화 흑연, 리튬 이온 2차 전지용 부극 및 리튬 2차 전지 | |
| KR102640643B1 (ko) | 탄소질 피복 흑연 입자, 리튬 이온 2차 전지용 부극 및 리튬 이온 2차 전지 | |
| TWI812403B (zh) | 被覆碳質的石墨粒子、鋰離子二次電池用負極及鋰離子二次電池 | |
| KR102640642B1 (ko) | 탄소질 피복 흑연 입자, 리튬 이온 2차 전지용 부극 및 리튬 이온 2차 전지 | |
| TWI822252B (zh) | 被覆碳質的石墨粒子、鋰離子二次電池用負極及鋰離子二次電池 | |
| CA3229480C (en) | Carbonaceous material-coated graphite particles, negative electrode for lithium ion secondary batteries, and lithium ion secondary battery | |
| JP2019160791A (ja) | リチウムイオン二次電池負極材料用炭素質被覆黒鉛質粒子の製造方法、リチウムイオン二次電池負極材料用炭素質被覆黒鉛質粒子、リチウムイオン二次電池負極およびリチウムイオン二次電池 | |
| CA3229554C (en) | Carbon-coated graphite particles, negative electrode for lithium-ion secondary battery, and lithium-ion secondary battery | |
| KR20250006252A (ko) | 탄소질 피복 흑연 입자, 리튬 이온 2차 전지용 부극, 리튬 이온 2차 전지 및 탄소질 피복 흑연 입자의 제조 방법 | |
| KR20250005394A (ko) | 탄소질 피복 흑연 입자, 리튬 이온 2차 전지용 부극, 리튬 이온 2차 전지 및 탄소질 피복 흑연 입자의 제조 방법 | |
| JP2004083398A (ja) | 多結晶メソカーボン小球体黒鉛化品、その製造方法およびリチウムイオン二次電池 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0105 | International application |
Patent event date: 20211118 Patent event code: PA01051R01D Comment text: International Patent Application |
|
| PA0201 | Request for examination | ||
| PG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20230724 Patent event code: PE09021S01D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20240129 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20240227 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 20240227 End annual number: 3 Start annual number: 1 |
|
| PG1601 | Publication of registration |