JP2021101434A - 負極活物質及びそれを含む二次電池 - Google Patents
負極活物質及びそれを含む二次電池 Download PDFInfo
- Publication number
- JP2021101434A JP2021101434A JP2021063451A JP2021063451A JP2021101434A JP 2021101434 A JP2021101434 A JP 2021101434A JP 2021063451 A JP2021063451 A JP 2021063451A JP 2021063451 A JP2021063451 A JP 2021063451A JP 2021101434 A JP2021101434 A JP 2021101434A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- particle size
- active material
- electrode active
- graphite
- 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.)
- Pending
Links
- 239000007773 negative electrode material Substances 0.000 title claims abstract description 62
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 55
- 229910021382 natural graphite Inorganic materials 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims description 91
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 25
- 239000011247 coating layer Substances 0.000 claims description 22
- 239000011230 binding agent Substances 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 30
- 229920000642 polymer Polymers 0.000 description 18
- -1 lithium ions form lithium ion clusters Chemical class 0.000 description 16
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 15
- 229910002804 graphite Inorganic materials 0.000 description 15
- 239000010439 graphite Substances 0.000 description 15
- 239000010954 inorganic particle Substances 0.000 description 15
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 14
- 229910001416 lithium ion Inorganic materials 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 239000002002 slurry Substances 0.000 description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 229920006254 polymer film Polymers 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 239000011148 porous material Substances 0.000 description 8
- 239000002033 PVDF binder Substances 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 229920000098 polyolefin Polymers 0.000 description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000008151 electrolyte solution Substances 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 101100000210 Mus caroli Orm8 gene Proteins 0.000 description 4
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 4
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 4
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 229910000314 transition metal oxide Inorganic materials 0.000 description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910014089 LiMn1/3Ni1/3Co1/3O2 Inorganic materials 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 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
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000307 polymer substrate Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- HCGFUIQPSOCUHI-UHFFFAOYSA-N 2-propan-2-yloxyethanol Chemical compound CC(C)OCCO HCGFUIQPSOCUHI-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- 229910018871 CoO 2 Inorganic materials 0.000 description 1
- 229920008712 Copo Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000004807 desolvation Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 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
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- CXHHBNMLPJOKQD-UHFFFAOYSA-M methyl carbonate Chemical compound COC([O-])=O CXHHBNMLPJOKQD-UHFFFAOYSA-M 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene 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
- 239000002244 precipitate Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007767 slide coating Methods 0.000 description 1
- 238000007764 slot die coating Methods 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-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
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—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
- H01M4/362—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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
-
- 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
- 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
- H01M2004/027—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)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
の設計は様々な因子を考慮しなければならず、殆どが経験によって決定される場合が多い。これが電池設計が難しく思われる理由である。
うち少なくともいずれか1つをさらに含む負極に関する。
ら六角網面を結合させることで得られる。π電子は炭素六角網面の間を比較的自由に移動できるため、黒鉛の電子伝導性が良好になる。このような黒鉛層間を結合しているπ結合は弱いファンデルワールス結合を成すが、炭素六角網面内の結合は非常に強い共有結合であって異方的性質(anisotropy)を示し、リチウムイオンはこれら黒鉛層の間に挿入及び脱離するようになる。
製造した。
Claims (8)
- 大粒径人造黒鉛及び小粒径天然黒鉛を含み、
前記小粒径天然黒鉛と大粒径人造黒鉛との平均粒径の比率は1:1.5〜1:5であり、
前記大粒径人造黒鉛及び小粒径天然黒鉛はそれぞれ非晶質炭素を含むコーティング層をさらに備え、
前記コーティング層は大粒径人造黒鉛及び小粒径天然黒鉛の全体100重量部に対して1〜10重量部であり、
前記大粒径人造黒鉛と小粒径天然黒鉛との含量比は1:9〜4:6である負極活物質。 - 前記大粒径人造黒鉛の平均粒径は18〜30μmである請求項1に記載の負極活物質。
- 前記小粒径天然黒鉛の平均粒径は5〜13μmである請求項1に記載の負極活物質。
- 集電体、及び前記集電体の少なくとも一面に形成され、請求項1〜請求項3のうちいずれか1項に記載の負極活物質を含む負極活物質層を備えた負極。
- 前記負極活物質層はバインダー、導電材及び分散材のうち少なくともいずれか1つをさらに含む請求項4に記載の負極。
- 前記負極活物質層は1〜2のパッキング密度を有する請求項4に記載の負極。
- 正極、請求項4に記載の負極、及び前記正極と負極との間に介在されたセパレータを含む二次電池。
- 前記二次電池はリチウム二次電池である請求項7に記載の二次電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023065098A JP2023083386A (ja) | 2016-02-05 | 2023-04-12 | 負極活物質及びそれを含む二次電池 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20160015158 | 2016-02-05 | ||
KR10-2016-0015158 | 2016-02-05 | ||
JP2018517757A JP2018530887A (ja) | 2016-02-05 | 2017-02-06 | 負極活物質及びそれを含む二次電池 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018517757A Division JP2018530887A (ja) | 2016-02-05 | 2017-02-06 | 負極活物質及びそれを含む二次電池 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023065098A Division JP2023083386A (ja) | 2016-02-05 | 2023-04-12 | 負極活物質及びそれを含む二次電池 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2021101434A true JP2021101434A (ja) | 2021-07-08 |
Family
ID=59499899
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018517757A Pending JP2018530887A (ja) | 2016-02-05 | 2017-02-06 | 負極活物質及びそれを含む二次電池 |
JP2021063451A Pending JP2021101434A (ja) | 2016-02-05 | 2021-04-02 | 負極活物質及びそれを含む二次電池 |
JP2023065098A Pending JP2023083386A (ja) | 2016-02-05 | 2023-04-12 | 負極活物質及びそれを含む二次電池 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018517757A Pending JP2018530887A (ja) | 2016-02-05 | 2017-02-06 | 負極活物質及びそれを含む二次電池 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023065098A Pending JP2023083386A (ja) | 2016-02-05 | 2023-04-12 | 負極活物質及びそれを含む二次電池 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10938033B2 (ja) |
EP (1) | EP3324467B1 (ja) |
JP (3) | JP2018530887A (ja) |
KR (1) | KR101953757B1 (ja) |
CN (1) | CN107925083B (ja) |
PL (1) | PL3324467T3 (ja) |
WO (1) | WO2017135794A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11742475B2 (en) | 2017-04-03 | 2023-08-29 | Global Graphene Group, Inc. | Encapsulated anode active material particles, lithium secondary batteries containing same, and method of manufacturing |
KR102277734B1 (ko) * | 2018-02-26 | 2021-07-16 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 음극 활물질, 이를 포함하는 리튬 이차전지용 음극 및 리튬 이차전지 |
KR102426797B1 (ko) * | 2018-04-04 | 2022-07-29 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 음극 활물질, 이의 제조방법, 이를 포함하는 리튬 이차전지용 음극, 및 리튬 이차전지 |
KR102546827B1 (ko) * | 2018-04-24 | 2023-06-21 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 및 이를 포함하는 리튬 이차 전지 |
CN108899543B (zh) * | 2018-06-11 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | 一种锂离子电池复合石墨负极的合浆工艺 |
US20190393508A1 (en) * | 2018-06-21 | 2019-12-26 | Nanotek Instruments, Inc. | Method of improving cycle-life of a lithium metal secondary battery |
KR102347003B1 (ko) | 2018-12-17 | 2022-01-05 | 주식회사 엘지에너지솔루션 | 이차전지용 음극 활물질, 이를 포함하는 음극 및 이의 제조방법 |
KR102492760B1 (ko) * | 2019-01-14 | 2023-01-27 | 주식회사 엘지에너지솔루션 | 음극 활물질의 제조 방법 |
CN109888368A (zh) * | 2019-03-05 | 2019-06-14 | 深圳鸿鹏新能源科技有限公司 | 低温锂离子电池 |
CN111732096B (zh) * | 2019-03-25 | 2022-02-22 | 中信国安盟固利动力科技有限公司 | 一种高功率锂离子电池的负极材料及其制备方法 |
CN110957476A (zh) * | 2019-10-30 | 2020-04-03 | 深圳市卓能新能源股份有限公司 | 一种高倍率锂离子动力电池及制造方法 |
CN111646466A (zh) * | 2020-03-23 | 2020-09-11 | 万向一二三股份公司 | 一种高容量高压实快充复合石墨负极材料及其制备方法 |
PL3955349T3 (pl) * | 2020-04-30 | 2023-07-17 | Contemporary Amperex Technology Co., Limited | Materiał czynny elektrody ujemnej, sposób jego wytwarzania, akumulator i urządzenie zawierające akumulator |
CN112951339B (zh) * | 2021-01-29 | 2022-10-18 | 天津市捷威动力工业有限公司 | 一种负极片的设计方法及锂电池 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073618A (ja) * | 2008-09-22 | 2010-04-02 | Sony Corp | 負極および二次電池 |
WO2014010973A1 (ko) * | 2012-07-13 | 2014-01-16 | 주식회사 엘지화학 | 바이모달 타입의 음극 활물질 및 이를 포함하는 리튬 이차전지 |
WO2015152113A1 (ja) * | 2014-03-31 | 2015-10-08 | Necエナジーデバイス株式会社 | 黒鉛系負極活物質材料、負極及びリチウムイオン二次電池 |
WO2015152115A1 (ja) * | 2014-03-31 | 2015-10-08 | Necエナジーデバイス株式会社 | リチウムイオン二次電池 |
WO2016018023A1 (ko) * | 2014-07-29 | 2016-02-04 | 주식회사 엘지화학 | 흑연 2차 입자 및 이를 포함하는 리튬 이차전지 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3691714B2 (ja) * | 2000-03-06 | 2005-09-07 | 三洋電機株式会社 | リチウム二次電池 |
CN101454928B (zh) | 2006-10-16 | 2012-09-05 | 松下电器产业株式会社 | 非水电解质二次电池用复合负极活性物质及其制造方法、以及采用其的非水电解质二次电池 |
KR20090094575A (ko) | 2008-03-03 | 2009-09-08 | 삼성에스디아이 주식회사 | 음극활물질, 이를 구비하는 음극 및 리튬이차전지 |
KR101626026B1 (ko) * | 2009-12-17 | 2016-05-31 | (주)포스코켐텍 | 리튬 이차전지용 음극 활물질 및 이를 포함하는 리튬 이차전지 |
CN102668196A (zh) * | 2010-06-30 | 2012-09-12 | 松下电器产业株式会社 | 非水电解质二次电池用负极及其制造方法 |
KR101223970B1 (ko) | 2011-04-21 | 2013-01-22 | 쇼와 덴코 가부시키가이샤 | 흑연재료, 전지전극용 탄소재료, 및 전지 |
KR101602526B1 (ko) * | 2013-02-04 | 2016-03-11 | 주식회사 엘지화학 | 리튬 이차 전지용 음극 활물질 및 이를 포함하는 리튬 이차 전지 |
CN104995784A (zh) * | 2013-02-27 | 2015-10-21 | 三菱化学株式会社 | 非水电解液及使用该非水电解液的非水电解质电池 |
KR101790400B1 (ko) * | 2013-12-20 | 2017-10-25 | 주식회사 엘지화학 | 음극 활물질 및 이를 포함하는 리튬 이차전지 |
KR101685832B1 (ko) | 2014-07-29 | 2016-12-12 | 주식회사 엘지화학 | 흑연 2차 입자 및 이를 포함하는 리튬 이차전지 |
-
2017
- 2017-02-06 WO PCT/KR2017/001300 patent/WO2017135794A1/ko active Application Filing
- 2017-02-06 CN CN201780002886.5A patent/CN107925083B/zh active Active
- 2017-02-06 US US15/753,606 patent/US10938033B2/en active Active
- 2017-02-06 PL PL17747837T patent/PL3324467T3/pl unknown
- 2017-02-06 EP EP17747837.7A patent/EP3324467B1/en active Active
- 2017-02-06 KR KR1020170016443A patent/KR101953757B1/ko active IP Right Grant
- 2017-02-06 JP JP2018517757A patent/JP2018530887A/ja active Pending
-
2021
- 2021-04-02 JP JP2021063451A patent/JP2021101434A/ja active Pending
-
2023
- 2023-04-12 JP JP2023065098A patent/JP2023083386A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010073618A (ja) * | 2008-09-22 | 2010-04-02 | Sony Corp | 負極および二次電池 |
WO2014010973A1 (ko) * | 2012-07-13 | 2014-01-16 | 주식회사 엘지화학 | 바이모달 타입의 음극 활물질 및 이를 포함하는 리튬 이차전지 |
WO2015152113A1 (ja) * | 2014-03-31 | 2015-10-08 | Necエナジーデバイス株式会社 | 黒鉛系負極活物質材料、負極及びリチウムイオン二次電池 |
WO2015152115A1 (ja) * | 2014-03-31 | 2015-10-08 | Necエナジーデバイス株式会社 | リチウムイオン二次電池 |
WO2016018023A1 (ko) * | 2014-07-29 | 2016-02-04 | 주식회사 엘지화학 | 흑연 2차 입자 및 이를 포함하는 리튬 이차전지 |
Non-Patent Citations (1)
Title |
---|
荒川 正文: "粒度測定入門", 粉体工学会誌, vol. 17, no. 6, JPN6022051640, 10 June 1980 (1980-06-10), JP, pages 299 - 307, ISSN: 0004941637 * |
Also Published As
Publication number | Publication date |
---|---|
EP3324467A4 (en) | 2018-07-04 |
PL3324467T3 (pl) | 2020-01-31 |
CN107925083A (zh) | 2018-04-17 |
EP3324467A1 (en) | 2018-05-23 |
JP2023083386A (ja) | 2023-06-15 |
WO2017135794A1 (ko) | 2017-08-10 |
US10938033B2 (en) | 2021-03-02 |
KR101953757B1 (ko) | 2019-03-04 |
KR20170093754A (ko) | 2017-08-16 |
JP2018530887A (ja) | 2018-10-18 |
EP3324467B1 (en) | 2019-09-11 |
US20200127289A1 (en) | 2020-04-23 |
CN107925083B (zh) | 2021-06-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2021101434A (ja) | 負極活物質及びそれを含む二次電池 | |
US10454096B2 (en) | Negative electrode for lithium secondary battery and lithium secondary battery comprising the same | |
CN107925058B (zh) | 二次电池用负极、其制造方法及包含其的二次电池 | |
JP5997383B2 (ja) | 多層の活物質層を含むリチウム二次電池 | |
KR102201335B1 (ko) | 전기화학소자용 음극 활물질, 상기 음극 활물질을 포함하는 음극 및 이를 포함하는 전기화학소자 | |
KR101582718B1 (ko) | 구형 천연 흑연을 포함하는 음극 및 이를 포함하는 리튬 이차 전지 | |
CN108140811B (zh) | 制备锂二次电池用的电极的方法和由此制备的锂二次电池用的电极 | |
KR102259971B1 (ko) | 음극 활물질 및 이를 포함하는 전고체 전지용 음극 | |
US10476078B2 (en) | Positive electrode for secondary battery, method of preparing the same, and lithium secondary battery including the positive electrode | |
KR101697008B1 (ko) | 리튬 이차전지 | |
JP6350150B2 (ja) | 蓄電素子 | |
JP2016006763A (ja) | 蓄電素子 | |
JP6704457B2 (ja) | リチウム二次電池 | |
CN112219293A (zh) | 锂二次电池用负极和包含该锂二次电池用负极的锂二次电池 | |
KR102335314B1 (ko) | 리튬 이차전지용 음극, 및 이를 포함하는 리튬 이차전지 | |
KR20160113981A (ko) | 음극 활물질 및 이의 제조방법 | |
JP7143006B2 (ja) | 二次電池用負極活物質の製造方法、二次電池用負極及びこれを含むリチウム二次電池 | |
CN115380407A (zh) | 锂二次电池用负极活性材料、负极和锂二次电池 | |
KR102408988B1 (ko) | 리튬 이차전지용 음극, 이를 포함하는 리튬 이차전지, 및 이의 제조 방법 | |
KR20170034773A (ko) | 리튬 이차전지의 집전체용 금속 메쉬 박판, 이를 포함하는 리튬 이차전지용 전극 및 리튬 이차전지 | |
KR102476648B1 (ko) | 리튬 이차전지용 양극 및 이를 구비한 리튬 이차전지 | |
JP7217358B2 (ja) | 平行に並列配置された複数の集電体を含む負極及びそれを含む二次電池 | |
KR102518386B1 (ko) | 양극 및 이를 포함하는 이차전지 | |
KR102386320B1 (ko) | 흑연계 입자 개질 방법 | |
KR20170086925A (ko) | 전극 및 이를 포함하는 전기화학소자 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210406 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210406 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20211227 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220530 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220830 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20221212 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230412 |
|
C60 | Trial request (containing other claim documents, opposition documents) |
Free format text: JAPANESE INTERMEDIATE CODE: C60 Effective date: 20230412 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20230420 |
|
C21 | Notice of transfer of a case for reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C21 Effective date: 20230424 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20230623 |