CN107615550A - 一种二次电池及其制备方法 - Google Patents
一种二次电池及其制备方法 Download PDFInfo
- Publication number
- CN107615550A CN107615550A CN201780001704.2A CN201780001704A CN107615550A CN 107615550 A CN107615550 A CN 107615550A CN 201780001704 A CN201780001704 A CN 201780001704A CN 107615550 A CN107615550 A CN 107615550A
- Authority
- CN
- China
- Prior art keywords
- lithium
- secondary cell
- electrolyte
- carbonate
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000003792 electrolyte Substances 0.000 claims abstract description 62
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 239000007774 positive electrode material Substances 0.000 claims abstract description 22
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002905 metal composite material Substances 0.000 claims abstract description 20
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 18
- 239000006183 anode active material Substances 0.000 claims abstract description 17
- 239000007773 negative electrode material Substances 0.000 claims abstract description 13
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 7
- 159000000002 lithium salts Chemical group 0.000 claims abstract description 7
- 230000002441 reversible effect Effects 0.000 claims abstract description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 32
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 30
- 239000000654 additive Substances 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 19
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 18
- 239000004411 aluminium Substances 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- -1 hexafluoroarsenate lithium Chemical compound 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 13
- 239000006258 conductive agent Substances 0.000 claims description 13
- WDXYVJKNSMILOQ-UHFFFAOYSA-N 1,3,2-dioxathiolane 2-oxide Chemical compound O=S1OCCO1 WDXYVJKNSMILOQ-UHFFFAOYSA-N 0.000 claims description 12
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 11
- 239000005030 aluminium foil Substances 0.000 claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 10
- 239000010452 phosphate Substances 0.000 claims description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical class COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- 229910052718 tin Inorganic materials 0.000 claims description 8
- 239000011135 tin Substances 0.000 claims description 8
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 125000006091 1,3-dioxolane group Chemical class 0.000 claims description 7
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 7
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 7
- 229920006254 polymer film Polymers 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 150000003457 sulfones Chemical class 0.000 claims description 7
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 6
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 150000003983 crown ethers Chemical class 0.000 claims description 6
- NVJBFARDFTXOTO-UHFFFAOYSA-N diethyl sulfite Chemical group CCOS(=O)OCC NVJBFARDFTXOTO-UHFFFAOYSA-N 0.000 claims description 6
- 150000002170 ethers Chemical class 0.000 claims description 6
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 claims description 6
- 150000002825 nitriles Chemical class 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 claims description 6
- SJHAYVFVKRXMKG-UHFFFAOYSA-N 4-methyl-1,3,2-dioxathiolane 2-oxide Chemical compound CC1COS(=O)O1 SJHAYVFVKRXMKG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 5
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000003575 carbonaceous material Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 4
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- LGCNDZIFJKHQHB-UHFFFAOYSA-N 1,3-dioxacycloundecan-2-one Chemical compound O=C1OCCCCCCCCO1 LGCNDZIFJKHQHB-UHFFFAOYSA-N 0.000 claims description 3
- VIPWUFMFHBIKQI-UHFFFAOYSA-N 1-fluoro-4-methoxybenzene Chemical compound COC1=CC=C(F)C=C1 VIPWUFMFHBIKQI-UHFFFAOYSA-N 0.000 claims description 3
- XQQZRZQVBFHBHL-UHFFFAOYSA-N 12-crown-4 Chemical compound C1COCCOCCOCCO1 XQQZRZQVBFHBHL-UHFFFAOYSA-N 0.000 claims description 3
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 claims description 3
- PCYBDHWNMPLUSI-UHFFFAOYSA-N 2,2,2-trifluoroethylphosphonic acid Chemical class OP(O)(=O)CC(F)(F)F PCYBDHWNMPLUSI-UHFFFAOYSA-N 0.000 claims description 3
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 3
- LFJJGHGXHXXDFT-UHFFFAOYSA-N 3-bromooxolan-2-one Chemical compound BrC1CCOC1=O LFJJGHGXHXXDFT-UHFFFAOYSA-N 0.000 claims description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 3
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 claims description 3
- SBUOHGKIOVRDKY-UHFFFAOYSA-N 4-methyl-1,3-dioxolane Chemical class CC1COCO1 SBUOHGKIOVRDKY-UHFFFAOYSA-N 0.000 claims description 3
- AGQKYUPKNZGEQS-UHFFFAOYSA-N C(C)(=O)OC=C.C(O)(=O)Cl Chemical compound C(C)(=O)OC=C.C(O)(=O)Cl AGQKYUPKNZGEQS-UHFFFAOYSA-N 0.000 claims description 3
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- KIWBPDUYBMNFTB-UHFFFAOYSA-N Ethyl hydrogen sulfate Chemical compound CCOS(O)(=O)=O KIWBPDUYBMNFTB-UHFFFAOYSA-N 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 claims description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 claims description 3
- DJZIBVUGARDLOC-UHFFFAOYSA-N [Ni]=O.[Co]=O.[Li] Chemical compound [Ni]=O.[Co]=O.[Li] DJZIBVUGARDLOC-UHFFFAOYSA-N 0.000 claims description 3
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 3
- ZSTLPJLUQNQBDQ-UHFFFAOYSA-N azanylidyne(dihydroxy)-$l^{5}-phosphane Chemical compound OP(O)#N ZSTLPJLUQNQBDQ-UHFFFAOYSA-N 0.000 claims description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 3
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 claims description 3
- WMNPLXMHVCFDKJ-UHFFFAOYSA-N bromoethene;carbonic acid Chemical compound BrC=C.OC(O)=O WMNPLXMHVCFDKJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- BDMUZCMZJISZQO-UHFFFAOYSA-N carbonic acid;3,3-difluoroprop-1-ene Chemical compound OC(O)=O.FC(F)C=C BDMUZCMZJISZQO-UHFFFAOYSA-N 0.000 claims description 3
- SIXOAUAWLZKQKX-UHFFFAOYSA-N carbonic acid;prop-1-ene Chemical compound CC=C.OC(O)=O SIXOAUAWLZKQKX-UHFFFAOYSA-N 0.000 claims description 3
- AOGYCOYQMAVAFD-UHFFFAOYSA-N chlorocarbonic acid Chemical compound OC(Cl)=O AOGYCOYQMAVAFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- QLVWOKQMDLQXNN-UHFFFAOYSA-N dibutyl carbonate Chemical compound CCCCOC(=O)OCCCC QLVWOKQMDLQXNN-UHFFFAOYSA-N 0.000 claims description 3
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 claims description 3
- BDUPRNVPXOHWIL-UHFFFAOYSA-N dimethyl sulfite Chemical compound COS(=O)OC BDUPRNVPXOHWIL-UHFFFAOYSA-N 0.000 claims description 3
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 229940031098 ethanolamine Drugs 0.000 claims description 3
- VEWLDLAARDMXSB-UHFFFAOYSA-N ethenyl sulfate;hydron Chemical compound OS(=O)(=O)OC=C VEWLDLAARDMXSB-UHFFFAOYSA-N 0.000 claims description 3
- 125000001153 fluoro group Chemical group F* 0.000 claims description 3
- 239000002608 ionic liquid Substances 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 3
- 150000004702 methyl esters Chemical class 0.000 claims description 3
- 229940017219 methyl propionate Drugs 0.000 claims description 3
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 150000008301 phosphite esters Chemical class 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- YCCPTBSIWCOONA-UHFFFAOYSA-N prop-1-ene;sulfurous acid Chemical group CC=C.OS(O)=O YCCPTBSIWCOONA-UHFFFAOYSA-N 0.000 claims description 3
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- SEEPANYCNGTZFQ-UHFFFAOYSA-N sulfadiazine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)NC1=NC=CC=N1 SEEPANYCNGTZFQ-UHFFFAOYSA-N 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 2
- YNESATAKKCNGOF-UHFFFAOYSA-N lithium bis(trimethylsilyl)amide Chemical class [Li+].C[Si](C)(C)[N-][Si](C)(C)C YNESATAKKCNGOF-UHFFFAOYSA-N 0.000 claims description 2
- 229940071264 lithium citrate Drugs 0.000 claims description 2
- WJSIUCDMWSDDCE-UHFFFAOYSA-K lithium citrate (anhydrous) Chemical compound [Li+].[Li+].[Li+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O WJSIUCDMWSDDCE-UHFFFAOYSA-K 0.000 claims description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 claims description 2
- PSBOOKLOXQFNPZ-UHFFFAOYSA-M lithium;2-hydroxybenzoate Chemical compound [Li+].OC1=CC=CC=C1C([O-])=O PSBOOKLOXQFNPZ-UHFFFAOYSA-M 0.000 claims description 2
- UTLRZTUJSMCBHB-UHFFFAOYSA-M lithium;3-oxobutanoate Chemical compound [Li+].CC(=O)CC([O-])=O UTLRZTUJSMCBHB-UHFFFAOYSA-M 0.000 claims description 2
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 claims description 2
- YFVGRULMIQXYNE-UHFFFAOYSA-M lithium;dodecyl sulfate Chemical compound [Li+].CCCCCCCCCCCCOS([O-])(=O)=O YFVGRULMIQXYNE-UHFFFAOYSA-M 0.000 claims description 2
- 239000006259 organic additive Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 2
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 claims 1
- RJFSDTDWWBECIL-UHFFFAOYSA-N trifluoro(methyl)-$l^{4}-sulfane Chemical compound CS(F)(F)F RJFSDTDWWBECIL-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000011258 core-shell material Substances 0.000 abstract 2
- 230000004888 barrier function Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 239000007769 metal material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
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- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- KJANXICSLKGVHC-UHFFFAOYSA-N ethylsulfonylcyclobutane Chemical compound CCS(=O)(=O)C1CCC1 KJANXICSLKGVHC-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- WDGKXRCNMKPDSD-UHFFFAOYSA-N lithium;trifluoromethanesulfonic acid Chemical compound [Li].OS(=O)(=O)C(F)(F)F WDGKXRCNMKPDSD-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
Claims (19)
- 一种二次电池,包括电池负极、电解液、隔膜以及电池正极,其特征在于,其中,所述电池负极包括负极集流体;所述负极集流体包括金属或金属合金或金属复合物导电材料,所述负极集流体同时充当负极活性材料;所述电解液包括电解质和溶剂,所述电解质为锂盐;所述电池正极包括正极集流体和正极活性材料层,所述正极活性材料层包括能可逆脱嵌锂离子的正极活性材料,所述正极集流体包括金属、金属合金或金属复合物导电材料。
- 如权利要求1所述的二次电池,其特征在于,所述负极集流体包括铝、镁、锂、钒、铜、铁、锡、锌、镍、钛、锰中的任意一种、或其中任意一种金属的合金,或其中任意一种金属的复合物。
- 如权利要求2所述的二次电池,其特征在于,所述负极集流体的结构为铝箔、或碳材料包覆的多孔铝、或铝的多层复合结构。
- 如权利要求1所述的二次电池,其特征在于,所述正极活性材料包括钴酸锂、镍酸锂、锰酸锂、磷酸铁锂、镍钴酸锂二元材料、尖晶石结构氧化物、镍钴锰酸锂三元材料、层状富锂高锰材料中的一种或几种或其中一种的复合材料。
- 如权利要求1所述的二次电池,其特征在于,所述正极集流体包括铝、镁、锂、钒、铜、铁、锡、锌、镍、钛、锰中的任意一种,或其中任意一种金属的复合物,或其中任意一种金属的合金。
- 如权利要求1所述的二次电池,其特征在于,所述电解质包括六氟磷酸锂、高氯酸锂、四氟硼酸锂、醋酸锂、水杨酸锂、乙酰乙酸锂、碳酸锂、三氟甲磺 酸锂、十二烷基硫酸锂、柠檬酸锂、双(三甲基硅烷基)氨基锂、六氟砷酸锂、三氟甲烷磺酰亚胺锂中的一种或几种,且浓度范围为0.1–10mol/L。
- 如权利要求6所述的二次电池,其特征在于,所述电解质的浓度为0.5-2mol/L。
- 如权利要求6所述的二次电池,其特征在于,所述电解质为六氟磷酸锂,浓度为1mol/L。
- 如权利要求1所述的二次电池,其特征在于,所述溶剂包括酯类、砜类、醚类、腈类有机溶剂或离子液体中的一种或多种。
- 如权利要求9所述的二次电池,其特征在于,所述溶剂包括碳酸丙烯酯、碳酸乙烯酯、碳酸丁烯酯、碳酸二乙酯、碳酸二甲酯、碳酸二丙酯、碳酸甲乙酯、碳酸甲丙酯、碳酸二丁酯、碳酸甲丁酯、碳酸甲异丙酯、甲酯、甲酸甲酯、乙酸甲酯、N,N-二甲基乙酰胺、氟代碳酸乙烯酯,丙酸甲酯,丙酸乙酯、乙酸乙酯、γ-丁内酯、四氢呋喃、2-甲基四氢呋喃、1,3-二氧环戊烷、4-甲基-1,3-二氧环戊烷、二甲氧甲烷、1,2-二甲氧乙烷、1,2-二甲氧丙烷、三乙二醇二甲醚、二甲基砜、二甲醚、亚硫酸乙烯酯、亚硫酸丙烯脂、亚硫酸二甲脂、亚硫酸二乙脂、冠醚中的一种或多种。
- 如权利要求10所述的二次电池,其特征在于,所述溶剂为体积比为1:1:1的碳酸乙烯酯、碳酸甲乙酯和碳酸二甲酯,或体积比为1:1的碳酸乙烯酯和碳酸二甲酯,或体积比为1:1的碳酸乙烯酯和碳酸甲乙酯。
- 如权利要求1所述的二次电池,其特征在于,所述电解液还包括添加剂,所述添加剂包括酯类、砜类、醚类、腈类或烯烃类有机添加剂中的一种或几种。
- 如权利要求12所述的二次电池,其特征在于,所述添加剂包括氟代碳酸乙烯酯、碳酸亚乙烯酯、碳酸乙烯亚乙酯、1,3-丙磺酸内酯、1,4-丁磺酸内酯、 硫酸乙烯酯、硫酸丙烯酯、硫酸亚乙酯、亚硫酸乙烯酯、亚硫酸丙烯酯、二甲基亚硫酸酯、二乙基亚硫酸酯、亚硫酸亚乙酯、氯代甲酸甲脂、二甲基亚砜、苯甲醚、乙酰胺、二氮杂苯、间二氮杂苯、冠醚12-冠-4、冠醚18-冠-6、4-氟苯甲醚、氟代链状醚、二氟代甲基碳酸乙烯酯、三氟代甲基碳酸乙烯酯、氯代碳酸乙烯酯、溴代碳酸乙烯酯、三氟乙基膦酸、溴代丁内酯、氟代乙酸基乙烷、磷酸酯、亚磷酸酯、磷腈、乙醇胺、碳化二甲胺、环丁基砜、1,3-二氧环戊烷、乙腈、长链烯烃、三氧化二铝、氧化镁、氧化钡、碳酸钠、碳酸钙、二氧化碳、二氧化硫、碳酸锂中的一种或多种。
- 如权利要求12所述的二次电池,其特征在于,所述电解液中,所述添加剂的质量含量为0.1-20wt%。
- 如权利要求13所述的二次电池,其特征在于,所述电解液中,所述添加剂为碳酸亚乙烯酯,质量含量为1-5wt%。
- 如权利要求13所述的二次电池,其特征在于,所述电解液中,所述添加剂为亚硫酸乙烯酯、亚硫酸丙烯酯或亚硫酸亚乙酯,质量含量为1-5wt%。
- 如权利要求1所述的二次电池,其特征在于,所述正极活性材料层还包括导电剂以及粘结剂,所述正极活性材料的含量为60-95wt%,所述导电剂的含量为0.1-30wt%,所述粘结剂的含量为0.1-10wt%。
- 如权利要求1所述的二次电池,其特征在于,所述隔膜为绝缘的多孔聚合物薄膜或无机多孔薄膜,包括多孔聚丙烯薄膜、多孔聚乙烯薄膜、多孔复合聚合物薄膜、玻璃纤维类薄膜和多孔陶瓷隔膜中的一种或多种。
- 一种二次电池的制备方法,其特征在于,包括以下步骤:制备电池负极,将金属、或金属合金、或金属复合物导电材料裁切成所需的尺寸,洗净后作为电池负极,所述金属或金属合金或金属复合物导电材料同 时充当负极集流体和负极活性材料;配制电解液,称取一定量锂盐电解质加入到相应溶剂中,充分搅拌溶解,得到电解液;制备隔膜,将多孔聚合物薄膜、无机多孔薄膜或玻璃纤维类薄膜裁切成所需尺寸,清洗干净;制备电池正极,按一定比例称取正极活性材料、导电剂以及粘结剂,加入到适当溶剂中充分研磨成均匀浆料;取金属或金属合金或金属复合物导电材料,将其表面洗净后作为正极集流体;然后将所述浆料均匀涂覆于所述正极集流体表面,待所述浆料完全干燥形成正极活性材料层后进行裁切,得所需尺寸的电池正极;将所述电池负极、所述电解液、所述隔膜以及所述电池正极按顺序进行组装,得到二次电池。
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CN113661595A (zh) * | 2019-04-03 | 2021-11-16 | 株式会社Lg新能源 | 锂二次电池用电解质以及包含其的锂二次电池 |
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CN114149402A (zh) * | 2021-11-30 | 2022-03-08 | 苏州华一新能源科技股份有限公司 | 一种碳酸亚乙烯酯的制备方法及应用其的锂电池电解液 |
WO2023098188A1 (zh) * | 2021-11-30 | 2023-06-08 | 苏州华一新能源科技股份有限公司 | 碳酸亚乙烯酯、制备方法及应用其的锂电池电解液 |
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Also Published As
Publication number | Publication date |
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EP3370294A1 (en) | 2018-09-05 |
JP6896725B2 (ja) | 2021-06-30 |
EP3370294B1 (en) | 2023-06-28 |
KR20210088770A (ko) | 2021-07-14 |
JP2019501478A (ja) | 2019-01-17 |
EP3370294A4 (en) | 2019-01-09 |
WO2017190572A1 (zh) | 2017-11-09 |
CN107615550B (zh) | 2020-10-27 |
KR20180066169A (ko) | 2018-06-18 |
US20180342758A1 (en) | 2018-11-29 |
WO2017190364A1 (zh) | 2017-11-09 |
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