JP2022546284A - 二次電池及びそのための製造方法 - Google Patents
二次電池及びそのための製造方法 Download PDFInfo
- Publication number
- JP2022546284A JP2022546284A JP2022510936A JP2022510936A JP2022546284A JP 2022546284 A JP2022546284 A JP 2022546284A JP 2022510936 A JP2022510936 A JP 2022510936A JP 2022510936 A JP2022510936 A JP 2022510936A JP 2022546284 A JP2022546284 A JP 2022546284A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- lithium
- secondary battery
- active material
- silicon
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 37
- 238000000034 method Methods 0.000 claims abstract description 70
- 239000011871 silicon-based negative electrode active material Substances 0.000 claims abstract description 52
- 229910052744 lithium Inorganic materials 0.000 claims description 213
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 150
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 114
- 239000007773 negative electrode material Substances 0.000 claims description 112
- 229910052799 carbon Inorganic materials 0.000 claims description 82
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 59
- 239000000203 mixture Substances 0.000 claims description 59
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 54
- 229910052710 silicon Inorganic materials 0.000 claims description 47
- 239000010703 silicon Substances 0.000 claims description 46
- 230000002427 irreversible effect Effects 0.000 claims description 37
- 239000002245 particle Substances 0.000 claims description 32
- 239000011777 magnesium Substances 0.000 claims description 30
- 239000011244 liquid electrolyte Substances 0.000 claims description 29
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 27
- 229910052749 magnesium Inorganic materials 0.000 claims description 23
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 22
- 229910021389 graphene Inorganic materials 0.000 claims description 19
- -1 separator Inorganic materials 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 17
- 239000013078 crystal Substances 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 17
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000011149 active material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 14
- 239000010419 fine particle Substances 0.000 claims description 14
- 238000006479 redox reaction Methods 0.000 claims description 14
- 150000004760 silicates Chemical class 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 11
- 238000000151 deposition Methods 0.000 claims description 10
- 229910044991 metal oxide Inorganic materials 0.000 claims description 10
- 150000004706 metal oxides Chemical class 0.000 claims description 10
- 238000010298 pulverizing process Methods 0.000 claims description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000002134 carbon nanofiber Substances 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 8
- 239000011863 silicon-based powder Substances 0.000 claims description 7
- 229920001721 polyimide Polymers 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 238000003795 desorption Methods 0.000 claims description 3
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000011245 gel electrolyte Substances 0.000 claims description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 claims description 3
- RJCRUVXAWQRZKQ-UHFFFAOYSA-N oxosilicon;silicon Chemical compound [Si].[Si]=O RJCRUVXAWQRZKQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229910052634 enstatite Inorganic materials 0.000 claims description 2
- 229910052839 forsterite Inorganic materials 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 239000006183 anode active material Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 239000005518 polymer electrolyte Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 16
- 208000028659 discharge Diseases 0.000 description 47
- 230000000052 comparative effect Effects 0.000 description 25
- 239000007789 gas Substances 0.000 description 24
- 210000004027 cell Anatomy 0.000 description 18
- 239000010408 film Substances 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 15
- 238000007600 charging Methods 0.000 description 14
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 13
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 239000007774 positive electrode material Substances 0.000 description 12
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000007599 discharging Methods 0.000 description 10
- 239000011859 microparticle Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 229910002091 carbon monoxide Inorganic materials 0.000 description 9
- 239000004020 conductor Substances 0.000 description 9
- 229920002125 Sokalan® Polymers 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 229910017625 MgSiO Inorganic materials 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 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 5
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 5
- 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 5
- 239000006245 Carbon black Super-P Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910004283 SiO 4 Inorganic materials 0.000 description 5
- 230000008602 contraction Effects 0.000 description 5
- 230000001351 cycling effect Effects 0.000 description 5
- 238000009831 deintercalation Methods 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 238000009830 intercalation Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910021382 natural graphite Inorganic materials 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- MYWGVEGHKGKUMM-UHFFFAOYSA-N carbonic acid;ethene Chemical compound C=C.C=C.OC(O)=O MYWGVEGHKGKUMM-UHFFFAOYSA-N 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000004584 polyacrylic acid Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 3
- 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 3
- 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 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 230000002687 intercalation Effects 0.000 description 3
- 229910003002 lithium salt Inorganic materials 0.000 description 3
- 159000000002 lithium salts Chemical class 0.000 description 3
- 239000002135 nanosheet Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000009719 polyimide resin Substances 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 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
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000002050 diffraction method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010332 dry classification Methods 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000010574 gas phase reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 2
- 229910052912 lithium silicate Inorganic materials 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- RXXCIBALSKQCAE-UHFFFAOYSA-N 3-methylbutoxymethylbenzene Chemical compound CC(C)CCOCC1=CC=CC=C1 RXXCIBALSKQCAE-UHFFFAOYSA-N 0.000 description 1
- SJHAYVFVKRXMKG-UHFFFAOYSA-N 4-methyl-1,3,2-dioxathiolane 2-oxide Chemical compound CC1COS(=O)O1 SJHAYVFVKRXMKG-UHFFFAOYSA-N 0.000 description 1
- BUPLCMMXKFWTTA-UHFFFAOYSA-N 4-methylidene-1,3-dioxetan-2-one Chemical compound C=C1OC(=O)O1 BUPLCMMXKFWTTA-UHFFFAOYSA-N 0.000 description 1
- 229920003026 Acene Polymers 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910020366 ClO 4 Inorganic materials 0.000 description 1
- 229910017488 Cu K Inorganic materials 0.000 description 1
- 229910017541 Cu-K Inorganic materials 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910015915 LiNi0.8Co0.2O2 Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 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
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 239000000470 constituent Substances 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
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 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
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- CXHHBNMLPJOKQD-UHFFFAOYSA-M methyl carbonate Chemical compound COC([O-])=O CXHHBNMLPJOKQD-UHFFFAOYSA-M 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 239000002296 pyrolytic carbon Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 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
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000010333 wet classification Methods 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
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/0459—Electrochemical doping, intercalation, occlusion or alloying
-
- 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
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/044—Activating, forming or electrochemical attack of the supporting material
- H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
-
- 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
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- 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
-
- 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
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
-
- 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
- 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
- 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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
本発明の実施形態による二次電池は、正極、負極、及び電解質を含み、前記正極は金属酸化物活物質を含み、前記負極はシリコン系負極活物質を含み、前記負極は、負極の初期不可逆容量に相当する量で、リチウムでプリドープされている。
MxSiOy
0.5<{TA×DA×CA0(100-ICE)/100}/CLt×(CLa/CLt)}×TL×DL<TL<{TA×DA×CA0(100-ICE)/100}/CLt×(CLa/CLt)×DL
TA:負極の厚さ(μm)
DA:負極の密度(g/cm3)
ICE:初期効率(%)
CA0:負極の第1の充電容量(mAh/g)
CLt:リチウムの理論容量(3、600mAh/g)
CLa:リチウムの実容量(mAh/g)
TL:リチウム金属板の厚さ(μm)
DL:リチウム金属板の密度(0.53g/cm3)
CnH(2n+2-A)[OH]A
式2において、nは1~20の整数であり、Aは0又は1であり、
CmH2m
式3において、mは2~6の整数であり、
CxHyOz
式4において、xは1~20の整数であり、yは0~20の整数であり、及びzは1又は2である。
炭素含有量:5.1重量%
負極活物質の平均粒径(D50):5.3μm
炭素含有量:5.1重量%
負極活物質の平均粒径(D50):5.3μm
炭素含有量:5重量%
シリコン系負極活物質の平均粒径(D50):7.0μm
炭素含有量:5.1重量%
シリコン系負極活物質の平均粒径(D50):5.3μm
SiOxにおける炭素複合材料の量:SiOxに対して5重量%
SiOx炭素複合材料の粒子径(D50):7.0μm
20:液体電解質
30:リチウム金属板
Claims (22)
- 正極、負極、及び電解質を含む二次電池であって、前記正極は金属酸化物活物質を含み、前記負極はシリコン系負極活物質を含み、及び前記負極は、負極の初期不可逆容量に相当する量で、リチウムでドープされている、二次電池。
- 前記金属酸化物活物質は、コバルト酸リチウム、マンガン酸リチウム、又はその混合物を含むスピネル構造を有する酸化物を含む、請求項1の二次電池。
- 前記シリコン系負極活物質は、シリコン微粒子、SiOx(0.3≦x≦1.6)で表される化合物、二酸化ケイ素、及びマグネシウム、カルシウム、アルミニウム、又はその組み合わせを含むシリケートからなる群から選択される少なくとも1つを含む、請求項1の二次電池。
- 前記マグネシウムを含むシリケートは、MgSiO3結晶、Mg2SiO4結晶、又はその混合物を含む、請求項3の二次電池。
- 前記シリコン系負極活物質は、その表面にカーボンフィルムを含むカーボン層を含む、請求項1の二次電池。
- 前記カーボン層は、前記負極活物質の総重量に基づき、2重量%~10重量%の量で炭素を含む、請求項5の二次電池。
- 前記カーボン層は、カーボンナノファイバ、グラフェン、酸化グラフェン、及び還元型酸化グラフェンからなる群から選択される少なくとも1つを含む、請求項5の二次電池。
- 負極活物質の粒径分布における累積50%平均粒径(D50)が0.5μm~15μmである、請求項5の二次電池。
- 次の関係1を満たし、リチウムドーピングのためのリチウム金属板が10μm~30μmの厚さ及び0.3g/cm3~0.8g/cm3の密度を有する、請求項1の二次電池。
[関係1]
0.5<{TA×DA×CA0(100-ICE)/100}/CLt×(CLa/CLt)}×TL×DL<TL<{TA×DA×CA0(100-ICE)/100}/CLt×(CLa/CLt)×DL
関係1において、
TA:負極の厚さ(μm)
DA:負極の密度(g/cm3)
ICE:初期効率(%)
CA0:負極の第1の充電容量(mAh/g)
CLt:リチウムの理論容量(3,600mAh/g)
CLa:リチウムの実容量(mAh/g)
TL:リチウム金属板の厚さ(μm)
DL:リチウム金属板の密度(0.53g/cm3) - (1-1)シリコン系負極活物質を含む負極活物質組成物を負極集電体に適用して、負極を調製する工程;
(1-2)負極とリチウム金属板との間にセパレータを置いて、セルを調製する工程;
(1-3)工程(1-2)において得られるセルを電気化学的に活性化して、リチウムで負極をプリドープする工程;及び
(1-4)リチウムでプリドープされた負極を使用して、二次電池を製造する工程
を含む、請求項1の二次電池を製造するための方法。 - 工程(1-3)において、負極及びリチウム金属板を電気化学的に接触させる間、リチウムの吸着及び脱着を起こすことにより、負極の初期不可逆容量に相当する量で、リチウムで負極をプリドープする工程を含む、請求項10に記載の二次電池を製造するための方法。
- 工程(1-3)において、ひとたび負極がリチウムで電気化学的にプリドープされたとき、負極の初期不可逆容量に相当するリチウムの量以外のリチウムの量が放出されてプリドープが実行される、請求項10に記載の二次電池を製造するための方法。
- (2-1)シリコン系負極活物質を含む負極活物質組成物を負極集電体に適用して、負極を調製する工程;
(2-2)反応器中に負極及びリチウム金属板を配置し、酸化還元反応を実行してリチウムで負極をプリドープする工程;及び
(2-3)リチウムでプリドープされた負極、セパレータ、金属酸化物活物質を含む正極を連続的に積層して、電極を調製する工程
を含む、請求項1の二次電池を製造するための方法。 - 工程(2-2)において、酸化還元反応を一度以上実行して、プリドープの後、負極に過剰量にドープされたリチウムを除く、請求項13に記載の二次電池を製造するための方法。
- 前記負極活物質組成物を前記負極集電体に適用した後、それを巻く及び乾燥させる工程を更に含む、請求項10又は13に記載の二次電池を製造するための方法。
- 前記負極活物質組成物はバインダーを含み、前記バインダーはフッ素系樹脂、ゴム系材料、ポリオレフィン、アクリル樹脂、及びポリイミド系樹脂からなる群から選択される少なくとも1つを含む、請求項15に記載の二次電池を製造するための方法。
- 前記プリドープは、液体電解質において実行され、前記液体電解質は非水性電解質、高分子電解質、又はポリマーゲル電解質を含む、請求項10又は13に記載の二次電池を製造するための方法。
- 前記シリコン系負極活物質は、シリコン微粒子、SiOx(0.3≦x≦1.6)で表される化合物、二酸化ケイ素、及びマグネシウム、カルシウム、アルミニウム、又はその組み合わせを含むシリケートからなる群から選択される少なくとも1つを含む、請求項10又は13に記載の二次電池を製造するための方法。
- 前記シリコン系負極活物質は、シリコン粉末及び二酸化ケイ素粉末を混合してシリコン-シリコン酸化物原料粉末混合物を得る工程;前記原料粉末混合物を加熱及び蒸着してシリコン酸化物複合材料を得る工程;及び前記シリコン酸化物複合材料を粉砕及び分級してシリコン系負極活物質を得る工程、により得られる、請求項18に記載の二次電池を製造するための方法。
- 前記粉砕及び分級の後、化学的熱分解蒸着法を使用することにより、負極活物質の表面にカーボンフィルムを含むカーボン層を形成する工程を更に含む、請求項19に記載の二次電池を製造するための方法。
- カーボン層が形成された後、負極活物質を粉砕及び分級する工程を更に含む、請求項20に記載の二次電池を製造するための方法。
- 前記リチウム金属板は10μm~30μmの厚さ及び0.3g/cm3~0.8g/cm3の密度を有する、請求項10又は13に記載の二次電池を製造するための方法。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020190101354A KR20210022238A (ko) | 2019-08-19 | 2019-08-19 | 이차전지의 제조방법 |
KR10-2019-0101355 | 2019-08-19 | ||
KR1020190101353A KR20210022237A (ko) | 2019-08-19 | 2019-08-19 | 이차전지 및 이의 제조방법 |
KR10-2019-0101353 | 2019-08-19 | ||
KR10-2019-0101354 | 2019-08-19 | ||
KR1020190101355A KR20210022239A (ko) | 2019-08-19 | 2019-08-19 | 이차전지 및 이의 제조방법 |
PCT/KR2020/011028 WO2021034097A1 (ko) | 2019-08-19 | 2020-08-19 | 이차전지 및 이의 제조방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2022546284A true JP2022546284A (ja) | 2022-11-04 |
Family
ID=74660292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022510936A Pending JP2022546284A (ja) | 2019-08-19 | 2020-08-19 | 二次電池及びそのための製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220302428A1 (ja) |
EP (1) | EP4020621A4 (ja) |
JP (1) | JP2022546284A (ja) |
CN (1) | CN114600271A (ja) |
WO (1) | WO2021034097A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008004466A (ja) * | 2006-06-26 | 2008-01-10 | Matsushita Electric Ind Co Ltd | リチウムイオン二次電池の製造方法 |
JP2017091778A (ja) * | 2015-11-09 | 2017-05-25 | 戸田工業株式会社 | 非水電解質二次電池用負極活物質粒子粉末及びその製造方法、並びに非水電解質二次電池 |
JP2018156922A (ja) * | 2017-03-20 | 2018-10-04 | デジュ・エレクトロニック・マテリアルズ・カンパニー・リミテッドDaejoo Electronic Materials Co., Ltd. | リチウム二次電池陰極材用シリコン複合酸化物及びその製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002313324A (ja) | 2000-12-22 | 2002-10-25 | Fmc Corp | リチウム金属分散系である二次電池用アノード |
JP5256660B2 (ja) | 2006-08-30 | 2013-08-07 | 信越化学工業株式会社 | 非水系二次電池用セパレータ及びその製造方法並びに非水電解質二次電池 |
JP5411781B2 (ja) | 2010-04-05 | 2014-02-12 | 信越化学工業株式会社 | 非水電解質二次電池用負極材及び非水電解質二次電池用負極材の製造方法並びにリチウムイオン二次電池 |
JP5406799B2 (ja) * | 2010-07-29 | 2014-02-05 | 信越化学工業株式会社 | 非水電解質二次電池用負極材とその製造方法及びリチウムイオン二次電池 |
KR101179629B1 (ko) * | 2011-07-07 | 2012-09-10 | 한국에너지기술연구원 | 리튬 이온의 프리 도핑 방법에 따른 리튬 이온 커패시터 제조 방법 및 이의 리튬 이온 커패시터 |
JP5899442B2 (ja) * | 2011-12-28 | 2016-04-06 | パナソニックIpマネジメント株式会社 | 非水電解質二次電池用負極およびそれを用いた非水電解質二次電池 |
JP2015046220A (ja) * | 2011-12-29 | 2015-03-12 | パナソニック株式会社 | 非水電解質二次電池 |
KR102344143B1 (ko) | 2012-05-09 | 2021-12-30 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 리튬의 프리도핑 방법, 리튬 프리도핑 전극 및 축전 디바이스 |
JP2014146475A (ja) * | 2013-01-28 | 2014-08-14 | Sanyo Electric Co Ltd | 非水電解質二次電池用負極及び非水電解質二次電池 |
WO2014142523A1 (ko) * | 2013-03-11 | 2014-09-18 | 주식회사 엘지화학 | 리튬의 프리도핑 방법, 상기 방법을 포함하는 리튬 이차전지의 제조방법, 및 상기 제조방법으로부터 제조된 리튬 이차전지 |
CN104584278B (zh) * | 2013-03-11 | 2017-09-29 | 株式会社Lg 化学 | 预锂化的方法、包括该方法的制造锂二次电池的方法以及由该制造方法制造的锂二次电池 |
JP6539029B2 (ja) * | 2014-09-18 | 2019-07-03 | 積水化学工業株式会社 | リチウムイオン二次電池の製造方法 |
JP2021504918A (ja) * | 2017-12-01 | 2021-02-15 | デジュ・エレクトロニック・マテリアルズ・カンパニー・リミテッドDaejoo Electronic Materials Co., Ltd. | ケイ素酸化物複合体を含む非水電解質二次電池用負極活物質、及びその製造方法 |
CN111433949A (zh) * | 2017-12-05 | 2020-07-17 | 大洲电子材料株式会社 | 用于非水电解质二次电池的负极活性物质及其制备方法 |
-
2020
- 2020-08-19 WO PCT/KR2020/011028 patent/WO2021034097A1/ko unknown
- 2020-08-19 CN CN202080071921.0A patent/CN114600271A/zh active Pending
- 2020-08-19 EP EP20855749.6A patent/EP4020621A4/en active Pending
- 2020-08-19 JP JP2022510936A patent/JP2022546284A/ja active Pending
- 2020-08-19 US US17/635,848 patent/US20220302428A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008004466A (ja) * | 2006-06-26 | 2008-01-10 | Matsushita Electric Ind Co Ltd | リチウムイオン二次電池の製造方法 |
JP2017091778A (ja) * | 2015-11-09 | 2017-05-25 | 戸田工業株式会社 | 非水電解質二次電池用負極活物質粒子粉末及びその製造方法、並びに非水電解質二次電池 |
JP2018156922A (ja) * | 2017-03-20 | 2018-10-04 | デジュ・エレクトロニック・マテリアルズ・カンパニー・リミテッドDaejoo Electronic Materials Co., Ltd. | リチウム二次電池陰極材用シリコン複合酸化物及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20220302428A1 (en) | 2022-09-22 |
EP4020621A1 (en) | 2022-06-29 |
EP4020621A4 (en) | 2022-11-23 |
WO2021034097A1 (ko) | 2021-02-25 |
CN114600271A (zh) | 2022-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9843045B2 (en) | Negative electrode active material and method for producing the same | |
US9123955B2 (en) | Negative active material, lithium battery including the material, and method for manufacturing the material | |
JP6448057B2 (ja) | 多孔性シリコン系負極活物質、この製造方法、及びこれを含むリチウム二次電池 | |
WO2015063979A1 (ja) | 負極活物質、負極活物質の製造方法、並びに、リチウムイオン二次電池 | |
CN108292748B (zh) | 负极活性物质、锂离子二次电池及其制造方法、混合负极活性物质材料、负极 | |
US20120148922A1 (en) | Negative electrode for non-aqueous electrolyte secondary battery and method for producing the same | |
KR20060051615A (ko) | 비수전해질 2차 전지용 음극 활성 물질 및 비수전해질 2차전지 | |
US9406933B2 (en) | Negative active material, negative electrode and lithium battery including negative active material, and method of manufacturing negative active material | |
TWI691114B (zh) | 非水電解質二次電池用負極活性物質、非水電解質二次電池用負極及非水電解質二次電池、以及非水電解質二次電池用負極材料的製造方法 | |
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 | |
WO2012176873A1 (ja) | リチウム二次電池 | |
CN111656580B (zh) | 锂二次电池用负极活性材料、包含其的负极以及包含所述负极的锂离子二次电池 | |
JP7143478B2 (ja) | 複合正極活物質、それを採用した正極、リチウム電池及びその製造方法 | |
CN106953090B (zh) | 负极活性物质及包括所述物质的负极和锂电池 | |
KR20170039922A (ko) | 음극 활물질, 이를 채용한 음극과 리튬 전지, 및 상기 음극 활물질의 제조방법 | |
CN114744183A (zh) | 负极活性物质及制造方法、混合负极活性物质材料、负极、锂离子二次电池及制造方法 | |
JP2020535602A (ja) | 二次電池用の正極活物質の製造方法およびこれを用いる二次電池 | |
KR20200080490A (ko) | 음극활물질, 이의 제조방법 및 이를 포함하는 음극을 구비한 리튬 이차전지 | |
JP2022117978A (ja) | 正極、それを採用したリチウム電池、及びその製造方法 | |
EP4007017B1 (en) | Negative electrode material for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery | |
KR20210022239A (ko) | 이차전지 및 이의 제조방법 | |
JP2023536417A (ja) | 多孔性複合体、それを含む負極及びリチウム電池、並びにその製造方法 | |
US20220302428A1 (en) | Secondary battery and manufacturing method therefor | |
JP2017147058A (ja) | 負極活物質、混合負極活物質材料、非水電解質二次電池用負極、リチウムイオン二次電池、及び負極活物質の製造方法 | |
WO2018168196A1 (ja) | 負極活物質、混合負極活物質材料、及び負極活物質の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220418 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220418 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230412 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230509 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230726 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231006 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20240109 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240408 |