TW548865B - Hybrid thin film/thick film solid oxide fuel cell and method of manufacturing the same - Google Patents
Hybrid thin film/thick film solid oxide fuel cell and method of manufacturing the same Download PDFInfo
- Publication number
- TW548865B TW548865B TW091107948A TW91107948A TW548865B TW 548865 B TW548865 B TW 548865B TW 091107948 A TW091107948 A TW 091107948A TW 91107948 A TW91107948 A TW 91107948A TW 548865 B TW548865 B TW 548865B
- Authority
- TW
- Taiwan
- Prior art keywords
- fuel cell
- layer
- well
- electrolyte
- oxide
- Prior art date
Links
- 239000000446 fuel Substances 0.000 claims description 72
- 239000003792 electrolyte Substances 0.000 claims description 66
- 239000000463 material Substances 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 53
- 239000000758 substrate Substances 0.000 claims description 42
- 239000010408 film Substances 0.000 claims description 32
- 239000010409 thin film Substances 0.000 claims description 30
- 238000011049 filling Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 15
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 13
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 10
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 8
- 239000011195 cermet Substances 0.000 claims description 8
- 238000005229 chemical vapour deposition Methods 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 7
- PACGUUNWTMTWCF-UHFFFAOYSA-N [Sr].[La] Chemical compound [Sr].[La] PACGUUNWTMTWCF-UHFFFAOYSA-N 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- LFKMKZZIPDISEK-UHFFFAOYSA-L magnesium;4-carboxy-2,6-dihydroxyphenolate Chemical compound [Mg+2].OC1=CC(C([O-])=O)=CC(O)=C1O.OC1=CC(C([O-])=O)=CC(O)=C1O LFKMKZZIPDISEK-UHFFFAOYSA-L 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 claims description 4
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 2
- 229910052746 lanthanum Inorganic materials 0.000 claims 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 2
- MDTKOPQLOZWILY-UHFFFAOYSA-N [Mn].[Li].[La] Chemical compound [Mn].[Li].[La] MDTKOPQLOZWILY-UHFFFAOYSA-N 0.000 claims 1
- 229910052735 hafnium Inorganic materials 0.000 claims 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims 1
- 239000011224 oxide ceramic Substances 0.000 claims 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 claims 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 claims 1
- 229940075624 ytterbium oxide Drugs 0.000 claims 1
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 230000008901 benefit Effects 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000005530 etching Methods 0.000 description 8
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000873 masking effect Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- -1 arsenite cobalt cobalt Chemical compound 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004377 microelectronic Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000001273 butane Substances 0.000 description 3
- 239000010406 cathode material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010416 ion conductor Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005118 spray pyrolysis Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XGPJPLXOIJRLJN-UHFFFAOYSA-N [Mn].[Sr].[La] Chemical compound [Mn].[Sr].[La] XGPJPLXOIJRLJN-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- JCAWSUJCJVBDBW-UHFFFAOYSA-N benzene-1,2-diamine;ethane-1,2-diamine Chemical compound NCCN.NC1=CC=CC=C1N JCAWSUJCJVBDBW-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004814 ceramic processing Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- NFYLSJDPENHSBT-UHFFFAOYSA-N chromium(3+);lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+3].[La+3] NFYLSJDPENHSBT-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- CQQZFSZWNXAJQN-UHFFFAOYSA-K europium(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[Eu+3] CQQZFSZWNXAJQN-UHFFFAOYSA-K 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229910002119 nickel–yttria stabilized zirconia Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009704 powder extrusion Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910001954 samarium oxide Inorganic materials 0.000 description 1
- 229940075630 samarium oxide Drugs 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9066—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC of metal-ceramic composites or mixtures, e.g. cermets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
- H01M16/006—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers of fuel cells with rechargeable 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8621—Porous electrodes containing only metallic or ceramic material, e.g. made by sintering or sputtering
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
- H01M4/8885—Sintering or firing
-
- 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
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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Description
548865 A7 B7 五、發明説明(1 ) 發明技術背景 本發明一般係有關固態氧化物燃料電池,且更特別係 具有薄膜電解質及厚膜電極之此等燃料電池。 具有對用於微功率應用之以PEM為主之燃料電池系 統發展現今研究及產業活動。所提出之最普遍PEM系統 使用氫或甲醇作為燃料。氫代表對燃料處理及分配之挑 戰。甲醇於直接甲醇PEM電池可能有前途,但變成商業 實施迄今尚未被證實。再者,相較於其它烴燃料(諸如, 丁烧、丙烧、汽油及柴油),甲醇具有相對較低(約一半) 之比能量。報導之PEM電池之電力密度很少超過400 mW/cm2 ° 固態氧化物燃料電池(SOFC)已被證明提供内部改革 之可能性,且報導高至1900 mW/cm2之電力密度。SOFC 之示意代表例係顯示於第1圖,其中v0°°代表氧空位 (oxygen vacancy)。氧還原反應(於陰極發生)係: 〇2 +4e_—202_ 02_離子係從陰極經由電解質轉移至陽極。某些典型 之燃料氧化反應(發生於陽極)係: 2H2 + 202- 2H20 + 4e" (1) 2CO + 202' -> 2C02 + 4e_ (2) 陽極之氧化反應(其釋放電子)結合陰極之還原反應 (其消耗電子)造成有用電壓及經此負荷物之電流。 “薄膜”處理技術之應用已被報導使SOFC之實際操作 溫度由800°C至ll〇〇°C範圍降至約500°C或更少。 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) !:r-L'ri.--------裝------------------訂------------------線_ (請先閲讀背面之注意事項再填寫本頁) 548865 A7 ~----Ιί__ 五、發明説明(2 ) 一般亦相信”薄,,電解質層不應太薄,且少於10//m 之厚度被勸阻以避免短路之可能性。某些研究已致力於提 供一種優於習知技術之改良式膠體沈積技術―習知之於單 一步驟塗覆中使用膠體沈積方式沈積比10//111厚之薄膜 之努力先前係造成乾燥後薄膜破裂。 但是’ ’’薄”膜SOFC非迄今具有最高被證實之性能之 SOFC。較高性能/較高電力密度之s〇Fc —般係於較高溫 度操作,且使用金屬陶瓷及厚膜方法製備陽極及陰極。此 等高性能SOFC使用”薄’’膜電解質;但是,此等,,薄,,膜電 解質一般具有約40//m或更多之厚度,且係藉由電化學 蒸氣沈積(EVD)、帶鑄製及其它陶瓷處理技術製備。 已知之薄膜SOFC 100係顯示於第2圖。s〇FC 100 包含基材102,其上具有硝化物層1〇4、薄膜鎳陽極1〇6、 薄膜電解質108及薄膜銀陰極11〇。 某些事先已知之SOFC係電解質支撐(其中電解質層 提供一些結構整體性且係比陽極或陰極更厚);陰極支撐 (其中陰極層提供一些結構整體性且係比陽極或電解質更 厚);或陽極支撐(其中陽極提供一些結構整體性且係比陰 極或電解質更厚)。 製備一般已被瞭解係SOFC固有之主要問題之一。此 係因於所有組件(陽極、陰極、電解質、互連材料等)於關 於化學安定性及機械和諸性(例如,熱膨脹係數)需可相 容。此等層亦需被沈積成使適當黏著係於未使此等材料因 燒結溫度太高而降解下達成。此等要求迄今使成功且成本 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) --------裝…: (請先閲讀背面之注意事項再填寫本頁) 、^τ— -線- 548865 A7 五、發明説明( 有效地製備高性能SOFC變得非常困難。 因此,所欲者係提供一種克服上述缺點之s〇FC及製 備SOFC之方法。 發明之概要說明 本發明係藉由提供一種燃料電池(較佳係固態氧化物 燃料電池)克服及解決上述問題且符合如下列舉之目的及 優點及未列舉者,此燃料電池包含具有第一表面及第二表 面之薄膜電解質層,此第一表面係與第二表面相對。厚膜 陽極層被置放於第一表面上;且厚膜陰極層被置放於第二 表面上。 一種製備本發明燃料電池之方法包含於介電或半導體 基材之一側產生井之步驟。薄膜固態氧化物燃料電池被沈 積於此井之表面上。電極層被塗敷於電解質塗覆之井内。 相對之井於基材之另一側產生,此相對之井緊鄰電解質 層。此方法進一步包含使相對之電極層塗敷於相對井内之 步驟。 圖示簡要說明 本發明之其它目的、特徵及優點藉由參考下列詳細描 述及圖示而變明顯,其中: 第1圖係基本固態氧化物燃料電池之示意圖; 第2圖係習知技藝之薄膜固態氧化物燃料電池結構之 截面圖; 第3圖係本發明方法中之初步步驟之截面圖,其顯示 於基材二側上之遮蔽膜; 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) (請先閲讀背面之注意事項再填寫本頁)
•、可I :線丨 "6 =" 548865 五、發明説明(4 ) 第4圖係本發明方法之進一步步驟之截面圖 於基材一側上形成圖案之遮蔽膜; 第5圖係本發明方法之進一步步驟之截面圖 於基材材料内形成之井; 第6圖係本發明方法之進一步步驟之截面圖, 鄰近此井之遮蔽膜自基材移除; 第7圖係本發明方法之進—步步驟之截面圖, 塗敷薄固態電解質層; 第8圖係本發明方法之進—步步驟之截面圖, 於井内塗敷厚膜電極; 第9圖係本發明方法之進—步步驟之截面圖, 此基材之相反侧上形成圖案之遮蔽膜; 第10圖係本發明方法之進_步步驟之截面圖 示於基材材料之相反侧上形成之相對井; 一第11圖係本發明方法之進一步步驟之截面圖 示鄰近相對井之遮蔽膜自基材移除; 第12圖係本發明方法之進一步步驟之截面圖 示鄰近相對井之於基材上之隔離介電質; 第13圖係本發明方法之進一步步驟之截面圖 示使厚膜相對電極塗敷於相對井内; 第14圖係帛13圖所示之本發明之半示意上視圖, 描述陽極及陰極接觸墊; 第15圖係數個本發明S0FC之平面陣列之切面圖 及 其顯 示 其顯示 其顯示 其顯示 其顯示 其顯示 其顯 其顯 其顯 其顯 其 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適财關家標準(CNS) A4規格⑵GX297公复) 548865 A7 _________B7 五、發明説明(5 ) 第16圖係第15圖所示之平面陣列之電示意圖。 較佳具體例之詳細描述 本發明之目的係提供一種具有與厚膜陽極/燃料電極 及厚膜陰極/空氣電極結合之薄膜電解質之固態氧化物燃 料電池;藉此,有利地達成較低操作溫度及較高性能/電 力密度。本發明之進一步目的係提供一種製備此一固態氧 化物燃料電池之方法,此方法有利地併入微電子處理步驟 且係有效率及價格上有效的。再者,本發明之目的係提供 此一薄膜/厚膜固態氧化物燃料電池之積體平面陣列,此 平面陣列有利地提供適應燃料電池系統之操作電壓之簡化 手段。 本發明已不可預期且意外地發現與傳統s〇FC極度相 反地,本發明之SOFC可於較低操作溫度溫度時展現高性 能(例如,比傳統PEM電池更高之電力密度,及可能比傳 統鬲性能SOFC更高之電力密度)。較低操作溫度係相當 期望,因為較不昂貴之材料可被作為s〇FC之組件。通常, 虽操作溫度上升,SOFC組件之材料變得更昂貴。但是, 傳統上(如上所探討),為利用較低操作溫度,較高性能需 被犧牲。 不欲受任何理論所限,相信本發明之s〇FC經由使厚 膜電極材料結合至薄膜電解質而於較低操作溫度時成功地 達成高性能。需瞭解於本發明上下文内之,,薄膜,,被定義成 包含-般與電子/半導體產業相關聯之厚度,,可以諸 如喷滅沈積之方法達成之厚度,例如,從少於至約 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公复) (請先閲讀背面之注意事項再填寫本頁) ,裝丨 、^τ— :線丨 548865
發明説明 2〇口。對於”薄”膜S0FC電解質之此一厚度,即使文獻 上已認知,但其迄今尚未被商業實施。 ;:.r:卜 --------裝 (請先閲讀背面之注意事項再填寫本頁) 因此本叙明之SOFC以某方面而言係”混合式,,,其 薄膜電解質係藉由傳統上已被用於微電子產業(例如,製 備積體電路)之方法形成;而厚膜電極係藉由傳統之s〇fc 製備技術形成。此等傳統S〇FC之—些例子不受限地包含 粉末壓製及燒結、粉末擠塑及燒結、膠體懸浮噴灑或浸潰 塗覆、篩網印刷、;賴方法、帶鑄製、帶壓延、電裝喷灑 塗覆、火焰喷灑塗覆及喷灑熱解、電化學蒸氣沈積(EVD)、 化學蒸氣沈積(CVD)等。 需瞭解非所有此等傳統厚膜s〇FC製備技術可適用於 本發明。於較佳具體例中,任何所欲之厚膜電極可藉由不 叉限地包含膠體懸浮喷灑或浸潰塗覆、篩網印刷、淤漿方 法、電漿喷灑塗覆、火焰喷灑塗覆及噴灑熱解及化學蒸氣 沈積(CVD)之方法塗敷。 線丨 現參考第13圖,本發明之混合式薄膜/厚膜固態氧化 物燃料電池被指定為10。固態氧化物燃料電池(S〇FC)1〇 包含具有第一表面14及第二表面16之薄膜電解質層12, 第一表面14被置於第二表面16。 需瞭解薄膜電解質層12可具有於下列參數中之所欲 及/或適於特殊最終使用之任何厚度。電解質層12理想上 需儘可能薄,但需電絕緣(僅呈離子導性),不透氣,具有 足夠介電強度以避免電池1〇短路,且需夠厚以覆蓋地形 上之不規則性,藉此,提供覆蓋完整性,亦避免電池10 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公釐) 548865 A7 ----____B7 _ 五、發明説明(7 ) 短路。 (請先閲讀背面之注意事項再填寫本頁) ,於較佳具體例中,電解質層12可具有從約少於⑽ 米至約20微米之範圍之厚度。於更佳具體例中,電解質 層12可具有少於約10微米之厚度。於進一步較佳具體例 中,電解質層12可具有約2微米與約5微米間範圍之厚 度。 亦需瞭解厚的陽極18及陰極2〇層之每一者可具有於 下列參數中之所欲及/或適於特殊最終使用之任何厚度。 相對於某些已知S0FC(其促進電極支撐之s〇Fc,同時使 相對電極保持薄(如上所探討)),本發明中不可預期地發 現若陽極18與陰極20係厚且呈多孔時係有利的。 厚且多孔(互連多孔性)之電極之某些優點係不受限地 包含下述。電極愈厚,對所欲電催化反應之表面積愈大。 線丨 此較大之表面積,有利地呈現大的三相邊界面積(反應物、 電極催化劑及電解質之同時接觸)對於其間發生内部改進 (及因而產生氫)及/或燃料之直接氧化之陽極/燃料電極18 係為特別期望;較大表面有利地造成燃料電池能於未受氫 生產速率不當限制下產生電力。若選作電極之材作作為混 合電子/離子導體(MEIC)時,此三相邊界面積更大。再者, 多孔厚膜電極18, 20係比已知之緻密薄膜電極更為所欲, 因為燃料及氧化劑可比緻密薄膜電極更有效率地到達電解 質(其至少部份係由於對運送之較低抗性之故)。再者,較 厚電極提供較低之電寄生損失。 於較佳具體例中,陽極及陰極層之每一者具有大於約 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 548865 五、發明説明(8 / V、:之厚度。於進-步之較佳具體例中,陽極及陰極 6母者具有1巳圍為約30微米與約500微米間之厚产。 需瞭解雖然陽極18於篦由# 又 , 於弟13圖中係以比陰極2〇厚而描述, 係非限制性之例子。被認為係於本發明範圍内者係且有 ,此之厚度相等或基本上相等、陽極18比陰極20薄等之 陽極18及陰極2〇,但二電極% 2〇係如此間界定般厚 (即’大於約30微米)。 本發明之SOFC 1〇進一步包含具有範圍為約19%與 約55%間之互連多孔性之陽極層18,·及具有範圍為約抓 與約55%間之互連多孔性之陰極層2()。於更佳之具體例 中,陽極層18之互連多孔性及陰極層之互連多孔性之每 一者範圍係約20%與約25%之間。 作為陽極及/或陰極所選之材料(此等材料於下將進一 步詳述)可藉由任何傳統已知方法呈互連多孔性。此一方 法之非限制性例子係混合適當之形成孔洞之材料(諸如, 澱粉);適當黏著劑或聚合物;及適當溶劑以形成陶瓷糊/ 淤漿。然後,於二步驟熱處理方法中,黏著劑及溶劑被趨 出,且孔洞形成物於高溫氧化。然後,此材料於典型上大 於100(TC之溫度燒結,達成陶瓷及/或金屬顆粒之固態擴 散及凝固。此造成具有互連多孔性之材料。如此技藝中所 知,各種處理參數可被改變以造成特殊百分率之互連多孔 性。 需暸解許多適當材料可被選作各種層12, 18, 2〇(及作 為如下探討之互連及界面之材料)。於較佳具體例中,電 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 548865 A7 B7 五、發明説明(9 ) 解質層12包含選自氧化釔安定化之氧化鍅(YSZ)(約8莫 耳%與約10莫耳%間之Y203)、氧化釤摻混之氧化鈽 (SDC,其化學計量組成物之一例子係CeuSmwOu)、部 份安定化之氧化锆(PSZ)、安定化之鉍倍半氧化物(Bi203)、 五氧化二鈕(Ta205)及鑭锶鎵鎂氧化物(LSGM,其化學計 置組成物之一例子係La〇 8Sr〇 2Ga〇 85Mg〇 1502 825)所組成之 族群之材料。 於更佳具體例中,電解質層12基本上由Ta205或鑭 锶鎵鎂氧化物(LSGM)組成。於另一較佳具體例中,電解 質層12基本上由YSZ或SDC組成。 於較佳具體例中,陽極層18包含選自鎳(Ni)、Ni-氧 化釔安定化之氧化鍅金屬陶瓷(Ni-YSZ金屬陶瓷)、銅摻 混之氧化飾、亂摻混之氧化飾、IS掺混之氧化錦、氧化記 摻混之氧化鈽、CU-YSZ金屬陶瓷、Co-安定化之氧化錘 金屬陶瓷、Ru-安定化之氧化鍅金屬陶瓷、LSGM+氧化鎳 及其混合物所組成族群之材料。 於較佳具體例中,陰極層20包含諸如銀等之材料, 或具有鈣鈦礦結構之材料。於較佳具體例中,陰極層20 包含具鈣鈦礦結構之材料,其係選自鑭锶錳(LSM)、鐵酸 鑭锶、鑭锶輝砷鈷礦(LSC)、LaFe03/LaCo03、ΥΜη03、 CaMn03、YFe03及其混合物所組成之族群。LSC及LSM 係更佳之陰極材料,而Ag係適合,但次佳。 需暸解陰極層20及/或陽極層18可自作為混合電子/ 離子導體(MEIC)之材料形成。 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) η --------裝------------------、可------------------線· (請先閲讀背面之注意事項再填寫本頁) 五、發明説明(10 ) 本發明之燃料電池10可進一步包含置放於陽極18及 電解質12間之第一界面層22 ;及置放於陰極2〇與電解 質12間之第二界面層24。需瞭解界面層22, 24可包含能 所欲地提供緩衝及/或相互擴散障壁性質及作為混合電子/ 離子V體(MEIC)之任何適當材料。於較佳具體例中,第 一界面層22包含氧化釔摻混之氧化鈽(YDC,化學計量組 成物之一例子係(Y2〇3)(M5(Ce〇2)() 85)),且第二界面層24 包含氧化釔安定化叙倍半氧化物(YSB,Bi2〇 j。 需瞭解層22, 24之界面材料可相互變換或未相互變 換。例如,氧化釔摻混之氧化鈽(YDC)已被報導作為陽極 /電解質及陰極/電解質界面之緩衝物。 本發明之SOFC 10可進一步包含使燃料電池1〇連接 至電負荷L及/或電儲存裝置(未示出)之材料26,26,,此 連接材料26, 26,被沈積於陽極層18及陰極層2〇之至少 一者上。需瞭解此連接層26, 26,可覆蓋陽極18及/或陰 極20之表面之一部份或實質上全部。層26,26,亦可覆蓋 基材30之一相反表面4〇上之電解質層12之一部份或實 質上全部,且其亦可覆蓋基材3〇之另一相反表面42上之 隔離介質電層46之一部份或實質上全部。但是,被意欲 者係若層26, 26’延伸超出陽極18及/或陰極2〇之表面, 製備燃料電池10之方法可能需多於二個遮蔽罩(此方法及 遮蔽罩將於如下進一步探討)。 電負荷L可包含許多裝置,其不受限地包含電腦、 攜V式電子器具(例如,攜帶式數位輔助器(pDA)、攜帶式 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公釐) 548865 A7 B7 五、發明説明(11 ) 電力工具等)、通訊裝置(攜帶式或其它,消費性及軍事性) 之任意者或全部。電儲存裝置可包含作為非受限式例子之 電容器、電池及電力調節裝置之任意者或全部。某些例示 之電力調節裝置包含不可中斷之電力供應器、DC/AC轉 換器、DC電壓轉換器、電壓調節器、電流限制器等。亦 被意欲者係本發明之SOFC 10可適用於運輸工業(例如, 電力汽車)及公共產業(例如,於電力廠内)。 需瞭解連接材料26, 26’可包含任何適當材料,但是, 於較佳具體例中,此連接材料具有作為其主要組份之選自 銀、Ιε、鈿、金、鈦、组、鉻、鐵、鎳、礙及其混合物所 組成族群之材料。 SOFC 10可進一步包含用以使混合式薄膜/厚膜之固 態氧化物燃料電池10之至少二者互連之材料28, 28’(平 面陣列之電池10係於第15圖顯示),互連材料28,28’被 沈積於陽極層18與陰極層20之至少一者上。 互連材料28,28’可為任何適當材料。但是,於較佳 具體例中,此材料28, 28’係選自亞鉻酸鑭、鎳、銅、鈦、 鈕、鉻、鐵、碳及其混合物所組成之族群。 需暸解作為連接層26, 26’之材料可與作為互連層28, 28’互換或不互換。 可作為連接材料26, 26’及/或互連材料28, 28’之某些 額外材料不受限地包含W(鎢)、不鏽鋼(若操作溫度被足 夠降低),及高溫鎳合金(例如,某些此等合金可購自賓州 Wexford 之國際鎳公司(International Nickel Company)之商 -.14 ,- (請先閲讀背面之注意事項再填寫本頁) 、?τ— •線- 548865 A7 B7 五、發明説明(12 ) 品名為INCONEL 600及INCONEL 601,及印地安納州 KoKomo 之 Haynes Internation,Inc.之 HASTELLOY X 及 HA-230)。 第14圖係第13圖所示之燃料電池10之半示意上視 圖,顯示陽極接觸墊56及陰極接觸墊58。 需暸解任何適當燃料/反應物可與本發明之SOFC 10 使用。於較佳具體例中,燃料/反應物係選自甲烷、丁烷、 丙烷、戊烷、甲醇、乙醇、較高之直鏈或混合之烴(較佳 係低硫烴,例如,低硫汽油、低硫煤油、低硫柴油)及其 混合物所組成之族群。於更佳具體例中,燃料/反應物係 選自丁烷、丙烷、甲醇、戊烷及其混合物所組成之族群。 適當燃料需因其對内部及/或直接重整之適合性、感興趣 之操作溫度範圍内之適當蒸氣壓及相似參數而選擇。 被認為於本發明範圍内係大量燃料電池10可藉由作 為層12,18, 20所列示材料之各種不同結合而形成。更大 數量之燃料電池10可藉由使作為層12,18, 20所列示材 料與選擇性層22,24,26, 28之任意或全部之任意結合而 形成。需瞭解此”混合及匹配”係於本發明範圍内;但是, 較佳係下列指示被依循。較佳係具有所選層間之機械相容 性,例如,此等層需具有實質上相匹配之熱係數。亦較佳 係具有所選層間之化學相容性,例如,於升高溫度之製備 期間需缺乏非所欲反應。進一步較佳係所選層於感興趣之 操作溫度範圍施行。再者,較佳係所選燃料於感興趣操作 溫度内施行。 --_15 -- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) (請先閱讀背面之注意事項再填寫本頁) _、τ· 線- 不贫明另 膜/厚膜嫩杈士义 一π囬巴兮数個混合式薄 子腸燃料電池1 〇 1 〇,〗η,,甘7么#好· 列。 ^ 、 , ,10其係於基材30内排成陣 、纟(系β式及/或平行)係於數個陽極層18間提供; 電連接(系列式及/或平行)係於數個陰極層2〇間提供。 圖描述此陣列之較佳具體例,其中數個燃料電 、’ 1〇 ’ 1〇於平面陣列32内連接,平面陣列32具有 :以連接氧源之第一平34,第一平面具有數個位於其 料之陰極層2〇。平面陣列32進-步具有相反於第一平面 # ^第一平面36’第二平面36係用於接觸燃料(未示出), 第平面36具有數個陽極層18。於較佳具體例中,氧源 係空氣。 第16圖係第15圖所示之平面陣列32之電示意圖。 第15圖所示之平面陣列32可使用7遮蔽罩方法製 備平面陣列32之某些優點不受限地包含下述。藉由所 不方式製備平面Ρ車列,微電力應用之完全實際系列式及/ 或平行式、、Ό 口之電池(以獲得所欲之輸出電壓/電流操作特 性)可於單-基材上建構,其係使用_般且已建立之微電 子製備技術。此轉變成優於傳統3_維堆疊方式之可能具 經濟性之優點,且提供許多設計多變性。再者,與弘維 堆疊之結構相反,因為陽極與陰極皆係於單—基材之其本 身之相同側之故,平面陣列造成—種簡化之燃料及空氣歧 管系統。此簡化歧管可紐昂#之二極板及精巧氣體密封 設計之需求。密封問題已證明係許多已知平面s〇FC技術 思想之重大缺點。較低之電寄生損失可能係個別電池間之 548865 五、發明説明(14 ) 簡化互連及與外部負荷之簡化連接之結果。 树明之燃料電池1G係商性能,且具有相當所欲之 電力密度。於較佳具體例中,SOFC1〇具有約i〇〇mw/cm2 及大於約2000 mW/cm2間之電力密度。於更佳具體例卜 燃料電池10具有約1000 mW/cm2及大於約2〇〇〇 mW/cm2 間之電力密度。 燃料電池:U)較佳係具有約40(rc與約8〇〇。〇:間之操作 溫度。更佳地,燃料電池10具有約40(rc與約60(rc間之 操作溫度。更佳地,燃料電池10具有約40(rc與約500它 間之操作溫度。 本發明有利地提供以PEM為主之電池之約2至1〇倍 之電力密度;燃料之直接氧化及/或内部重整之可能性; 及降低之SOFC操作溫度。 本發明燃料電池10之製備方法包含於介電或半導體 基材内產生井38之步驟,基材30具有第一側4〇及第二 侧42,第二侧42與第一側40相反,且井38係於第一侧 40内界定(見第5圖)。薄膜固態氧化物電解質層12被置 放於井38之表面上(見第7圖)。電極層ι8被塗敷於電解 質12塗覆井38(見第8圖)。相對井44於第二側42内產 生,相對井44係鄰近電解質層12(見第10圖)。本發明方 法進一步包含於相對井44内塗敷相對電極層2〇之步驟(見 第13圖)。 需瞭解雖然”電極”被指定為陽極層18,且,,相對電極,, 被指定為陰極層20,其可為相反;即,”電極”可為陰極, 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) 548865 A7 B7 五、發明説明(15 ) 且”相對電極”可為陽極18。 需瞭解薄膜電解質層12可藉由任何適合手段沈積, 但是,於較佳具體例中,沈積電解質層12之步驟係藉由 喷濺沈積及/或化學蒸氣沈積(CVD)施行。 本發明方法可選擇性地進一步包含於塗敷電極層18 前點燃電解質層12之步驟。此步驟可能為必需或不為必 需。例如,若電解質層12可於足夠高之温度喷濺沈積, 點燃步驟可為不需要。再者,點燃電極18,20之步驟可 能對於電解質層12係必要條件,因而使個別電解質12之 點燃步驟係不必需。 本發明方法進一步包含使隔離介電質46塗敷/沈積於 基材30之第二側42上(見第12圖)。再者,若所選基材30 係矽,隔離介電質46可於基材30之第二側42上生長。 需暸解任何適當材料可被選作隔離介電質46;但是, 於較佳具體例中,隔離介電質46材料係選自熱生長二氧 化矽、電漿促進化學蒸氣沈積(PECVD)二氧化矽、PECVD 氮化矽、PECVD碳化矽、低壓化學蒸氣沈積(LPCVD)氮 化矽及其混合物所組成之族群。於較佳具體例中,選擇材 料係熱生長二氧化矽,其係一種自行遮蔽/自行校直之氧 化物。相對地,沈積膜一般可能需使用額外遮蔽度。 本發明方法可進一步包含使用平面化技術處理電極層 18及相對電極層20之步驟。需暸解任何適當平面化技術 可被使用;但是,於較佳具體例中,平面化係藉由化學機 械拋光(CMP)及/或機械拋光施行。平面化係一種有利地 -L-18 _- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐) --------裝------------------、可------------------線· (請先閲讀背面之注意事項再填寫本頁) 548865 A7 I ----------—— B7__ 五、發明説明(16 ) 使電極層18及相對電極層20個別控制於井38及相對井 44。需進一步瞭解陽極材料丨8之平面化處理可於點燃之 前或之後完成,或於低溫凝固熱步驟之後完成。相似地, 需暸解陰極材料20之平面化處理可於點燃之前或之後完 成’或於低溫;旋固熱步驟之後完成。 本發明方法可進一步包含於產生井38之步驟前塗敷/ 沈積硬遮蔽罩48至基材30之第一側40之步驟。本發明 方法亦可進一步包含於產生相對井44之步驟前塗敷/沈積 硬遮蔽罩50至基材30之第二側42。若基材30係矽(如 圖中所述),硬遮蔽罩48, 50可於基材30之第一及第二側 40, 42上生長。需瞭解任何適當之遮蔽罩48,5〇可被使用; 但疋,於較佳具體例中,遮蔽罩48,5〇係選自氧化物、 氮化物、碳化物及其混合物所組成之族群。於更佳具體例 中,遮蔽罩48, 50係選自氧化物、氮化矽、碳化矽及其 混合物。雖然次佳,但遮蔽罩48, 5〇可包含金屬硬遮蔽 罩。 需瞭解井38及相對井44可藉由任何適當手段形成, 其不受限地包含蝕刻及壓製。壓製一般可被考量,例如, 若諸如氧化鋁之材料被選作基材30,且若基材3〇藉由壓 製及燒結製備。於此情況中,井38可藉由於基材製備方 I 法期間壓製而形成。 於較佳具體例中,井38及相對井44係藉由蝕刻產生。 若基材30係矽,蝕刻較佳係藉由濕式各向異性蝕刻劑、 電漿各向異性蝕刻劑及其混合物所組成族群之蝕刻劑施 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公爱)' ' = 一 -----
--------裝…: (請先閲讀背面之注意事項再填寫本頁) 、一叮 :線— 548865 A7 -- ---— __—B7 五、發明説明(17 ) ^一'' ----- 行。絲刻劑係於井38及相對井44丨有利地形成超平滑 表面。 而瞭解任何適當之濕式各向異性钱刻劑可被使用,但 其需形成如此間所述之超平滑表面。於較佳具體例中,濕 f各向異㈣刻劑係選自氫氧化鉀(KOH)、四甲基氫氧化 錢(TMAH) 1氧化鉀及異丙基醇之混合物、氮氧化錢、 氯氧化納、氫氧化鈽、乙二胺鄰苯二紛及其混合物所組成 之私群。濕式各向異性蝕刻劑以相反向外延伸角有利地形 成井38、相對井44之侧壁52, 54,如圖令所示(例如,見 第5及1〇圖)。此等呈角度之側壁52, 54因熱膨脹/收縮 理由可為有利的。 相似地,需瞭解任何適當電漿(乾)各向異性蝕刻劑可 被使用,但其形成如此間所述之超平滑表面。於較佳具體 例中,電漿各向異性蝕刻劑係六氟化硫然後C4F8之交替 塗敷。C4F8於蝕刻表面上(特別是於侧壁上)留下薄聚合 物。/、氟化硫然後CJ8之塗敷被重複至所欲餘刻被達成 為止。 電漿各向異性蝕刻劑係所欲,因為其能形成非常深之 井3 8,44。但是,電漿各向異性蝕刻劑亦形成實質上垂直 (未示出)之側壁52, 54,其於某些例子中因熱膨脹/收縮理 由係非所欲,且對電解質及電極18, 20材料之侧壁覆 蓋亦係非所欲(即,其難以覆蓋實質上垂直之壁)。 於次佳具體例中,各向異性钱刻劑可被用於石夕基材3〇 上。需瞭解任何適當之各向異性姓刻劑可被使用;但是, 本紙張尺度適用中國國家標準(CNs) A4規格(210X297公爱)
----------.Γ:··:…:裝…: (請先閲讀背面之注意事項再填寫本頁) •訂| :線- 548865 A7 五、發明説明( 於較佳具體例中,此各向異性蝕刻劑係氫氟酸、硝酸及乙 酸之混合物。各向異性蝕刻劑提供具有半圓形戴面之曲線 蝕刻,但是,缺點係遮蔽罩會受各向異性蝕刻劑之非所欲 深切。 若基材係含氧化矽之介電基材,需瞭解蝕刻可藉由任 何適當之各向異性蝕刻劑施行。於較佳具體例中,各向異 性餘刻劑包含含氫氟酸之各向異性蝕刻劑。 需瞭解作為基材30之任何適當材料可被選用。於較 佳具體例中,基材30係選自單晶矽、多晶矽、含氧化矽 之介電基材、氧化鋁、青玉、陶瓷及其混合物所組成之族 群。本發明之較佳具體例中,單晶矽係選用之基材。 已由本發明不可預期且意外地發現藉由傳統用於微電 子工業之製備方法獲得之此等超平滑表面能沈積非常薄之 電解質層12,實質上無會於電解質層12内造成非所欲開 口之表面不規則性之危險。 相對地,已知SOFC製備方法於多孔電極上沈積電解 貝層。但疋,當多孔電極係此基材時,其對電解質層係 不均勻表面,且於沈積時可能會使電解質材料浸入電 内。此會產生不均句之電解質層,且一般會需要較厚之 解質層以確保電解質内無能使空氣、燃十或氣體滲透之 隙。 本發明方法具有進一步優點。電解質層12被沈積(於 電極18, 20之任一者前)於上述超平滑井/相對井%,44表 面上之實質上非多孔基材3〇(例如,單晶矽晶圓)上。除能 呈 極電間 (請先閲讀背面之注意事項再填寫本頁) .裝_ 訂— :線丨 本紙張尺度適用中國國象標準(CNS) A4規格(21〇父297公爱) -21- 548865 A7 五、發明 -—— 沈Μ常薄之電解質層12夕卜,相信超平滑表面及實質上 夕孔|±之基材30會造成接近理論值之開放電路電壓 (OCV) 〇 ^被認為於本發明方法之範圍内係於井38, 44内形成 4膜電極18, 20,同時保持本發明s〇FC之某些(但非全 邛)優點。若此等薄膜電極18,2〇係所欲,其可藉由任何 適當方法塗敷,其不受限地包含化學蒸氣沈積或噴濺積。 藉此,井38及/或相對井44可適於含有厚膜或薄膜之電 極層18, 20。於本發明之一較佳具體例中,井38, 44之每 一者係適於含有厚膜電極18, 20。 現參考第4圖,本發明方法可另外包含使用傳統照相 石版術及蝕刻方法使基材3〇之第一側4〇上之硬遮蔽罩48 形成圖案。第6圖描述介電硬遮蔽罩48被移除。此移除 較佳係藉由一侧電漿蝕刻完成。 使電極18塗敷於井38内之後,電極18可被點燃。 相似地’使電極20塗敷於井44内之後,電極20可被點 燃。 現參考第9圖,本發明方法可另外包含使用傳統照相 石版術及蝕刻方法使基材30之第二側42上之硬遮蔽罩50 形成圖案。第n圖描述介電硬遮蔽罩5〇被移除。此移除 較佳係藉由一側電漿蝕刻完成。若要的話,遮蔽罩50可 被留下。 本發明之某些進一步優點可不受限地包含下述。本發 明方法可有利地為低至2遮蔽罩方法(即第3-13圖所描 本紙張尺度適用中國國家標準(CNS) Α4規格(2〗0Χ297公釐) (請先閱讀背面之注意事項再填寫本頁) -裝丨 、τ :線丨 548865
述)’而此技藝狀恶之微處理器一般使用約-25之遮蔽罩 方法。如此所示多孔厚膜介質之較高性能之陽極/陰極材 料之使用導致較少之極性能損失。本發明之s〇FC 1〇及 本發月之平面陣列3 2提供配置多變性及可按比例之配置 設計。再者,如上所述之方法步驟無需以列示般之順序進 行-本發明之處理順序可以蝕刻選擇性及熱歷史限制為基 準而被有利地改變且可修改。再者,因為燃料電池1〇賦 與内部重整反應之機會(其使烴燃料轉化成氫及一氧化 碳),此能使燃料源呈多樣性。 為進一步例示本發明,下列範例被提供。需瞭解此範 例被提供作為例示說明之目的,且不被作為限制本發範圍 而闡釋。 (請先閲讀背面之注意事項再填寫本頁) -裝丨 、一 =νί. 範例 :線, 本發明之SOFC 10係使用下列材料製備。 La+Sr+Ga+Mg+O (LSGM) +NiO金屬陶瓷被選作為陽極層 18。陽極/電解質界面層22係自Sm+Ge+O (SDC)形成。 La+Sr+Ga+Mg+O (LSGM)被選作電解質層 12。 La+Sr+Co+O )LSC)被選作陰極層20。此SOFC 10之例子 係低操作之SOFC,操作溫度係約600°C與約800。(:間。 雖然本發明之較佳具體例已被詳細描述,對熟習此項 技藝者明顯的是所揭露之具體例可被改良。因此,前述描 述被認為係列示,而非限制,且本發明之真正範圍係於下 列申請專利範圍中所界定。 本紙張尺度適用中國國家標準(CNS) Α4規格(210X297公釐) 548865 A7 B7 21 五、發明説明 元件符號對照表】 100 薄膜 SOFC 26, 26’連接層 102基材 28, 28’互連材料 104硝化物層 30基材 106薄膜鎳陽極 32平面陣列 108薄膜電解質 34第一平面 110薄膜銀陰極 36第二平面 10, 10’,10”固態氧化物燃 38井 料電池(SOFC) 40相反表面 12薄膜電解質層 42相反表面 14第一表面 44相對井 16第二表面 46隔離介質電層 18陽極 48, 50硬遮蔽罩 20陰極 52, 54側壁 22第一界面層 56陽極接觸墊 24第二界面層 58陰極接觸墊 (請先閲讀背面之注意事項再填寫本頁) •裝丨 •訂— :線| 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐)
Claims (1)
- 本紙張尺度適用中國國家標準(CNS) A4規格(21〇χ297公釐) κ、中請專利範園 第91107948號專利申請案申請專利範圍修正本^年各㈣曰 1· 一種燃料電池(10),包含: «層(12)’具有第—表面(14)及第二表面 (16),該第一表面(14)係相對於該第二表面〇6); 厚膜陽極層(18),其係置於該第一表面(14)上;及 厚膜陰極層(20),其係置於該第二表面(16)上。 2·如申請專利範圍第丨項之燃料電池(1〇),其中該電解質 層(12)具有約少於1微米至約2〇微米之範圍的厚度。 3·如申請專利範圍第丨項之燃料電池(1〇),其中該電解質 層(12)具有少於約1〇微米之厚度。 4·如申請專利範圍第3項之燃料電池(1〇),其中該電解質 層(12)具有約2微米與約5微米之間之範圍的厚度。 5·如申請專利範圍第1項之燃料電池(10),其中該陽極(18) 及該陰極(20)層之每一者具有大於約3〇微米之厚度。 6·如申請專利範圍第5項之燃料電池(1〇),其中該陽極(18) 及該陰極(20)層之每一者具有約30微米與約500微米間 範圍之厚度。 7·如申請專利範圍第1項之燃料電池(1〇),其中該陽極層 (18)具有約19%與約55%之間之範圍的互連多孔性;且 該陰極層(20)具有約19%與約55%之間之範圍的互連多 孔性。 8.如申請專利範圍第7項之燃料電池(10),其中該陽極層 (18)之互連多孔性及該陰極層(20)之互連多孔性之每一 者的範圍係約20%與約25%之間。 AS- _(請先閲讀背面之注意事項再填窝本頁) 548865 A8 B8 C8 ________D8 六、申請專利範圍 (諳先閲讀背面之注意事項再填寫本頁) 9·如申請專利範圍第1項之燃料電池(10),其中該電解質 層(12)包含選自經氧化釔安定化之氧化锆、經氧化釤摻 混之氧化鈽、部份經安定化之氧化锆、經安定化之鉍 倍半氧化物(Bi2〇3)、五氧化二钽(τ&2〇5)及鑭锶鎵鎂氧 化物所構成之組群的材料。 10·如申明專利範圍第9項之燃料電池(1 〇),其中該電解質 層(12)基本上由Ta2〇5組成。 U·如申請專利範圍第9項之燃料電池(10),其中該電解質 層(12)基本上由鑭鳃鎵鎂氧化物組成。 I2·如申請專利範圍第1項之燃料電池(10),其中該陽極層 (18)包含選自鎳(Ni)、經Ni-氧化釔安定化之氧化鍅金屬 陶兗、經銅摻混之氧化鈽、經釓摻混之氧化鈽、經銷 摻混之氧化鈽、經氧化釔摻混之氧化鈽、Cu-YSZ金屬 陶竟、經Co安定化之氧化锆金屬陶兗、經如安定化之 氧化銼金屬陶瓷、LSGM+氧化鎳及其混合物所構成之 族群的材料。 13.如申請專利範圍第丨項之燃料電池(1〇),其中該陰極層 (20)包含具有鈣鈦礦結構之材料。 14·如申請專利範圍第13項之燃料電池(1〇),其中該陰極層 (20)包含選自鑭鋰錳、鐵酸鑭锶、鑭鳃輝神姑礦、 LaFe03/LaCo03、YMn03、CaMn03、YFe〇3及其混合物 所構成之族群的材料。 15.如申請專利範圍第丨項之燃料電池(1〇),其中該陰極層 (20)包含銀。 本紙張尺度適用中國國家標準(CNS) A4规格(210 X 297公釐) 04 548865 A8 B8 C8 _ D8 六、申請專利範園 16·如申請專利範圍第1項之燃料電池(1〇),其中該燃料電 池(10)進一步包含: (請先閲讀背面之注意事項再填寫本頁) 第一界面層(22),其係置於該陽極(18)與該電解質 (12)之間;及 第一界面層(24),其係置於該陰極(2〇)與該電解質 (12)之間。 17·如申請專利範圍第16項之燃料電池(1〇),其中該第一界 面層(22)包含經氧化釔摻混之氧化鈽(ydc)。 18·如申請專利範圍第16項之燃料電池(1 〇),其中該第二界 面層(24)包含經氧化釔安定化之鉍倍半氧化物(YSB)。 19· 一種製備燃料電池(10)之方法,該方法包含下述步驟: 於介電或半導體基材(30)内產生井(38),該基材(3〇) 具有第一側(40)及第二侧(42),該第二側(42)係相對於 該第一側(40),且該井(38)係界定於該第一側(4〇)内; 使薄膜固態氧化物電解質層(12)沈積於該井(3 8)之 表面上; 使電極層(18)塗敷於該以電解質塗覆之井内; 於該第二側(42)内產生相對井;(44),該相對井(44) 鄰近該電解質層(12);及 於該相對井(44)内塗敷相對電極層(20)。 20·如申請專利範圍第19項之方法,其中該沈積該電解質 層(12)之步驟係藉由噴濺沈積及化學蒸氣沈積(CVD)之 至少一者施行。 ________29---- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐)
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- 2002-04-16 JP JP2002584416A patent/JP2005500647A/ja active Pending
- 2002-04-16 CN CNA028124316A patent/CN1610985A/zh active Pending
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- 2002-04-16 WO PCT/US2002/012018 patent/WO2002087002A1/en not_active Ceased
- 2002-04-18 TW TW091107948A patent/TW548865B/zh not_active IP Right Cessation
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| US6869722B2 (en) | 2005-03-22 |
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| US20040091609A1 (en) | 2004-05-13 |
| US20040101729A1 (en) | 2004-05-27 |
| WO2002087002A1 (en) | 2002-10-31 |
| EP1380065A1 (en) | 2004-01-14 |
| US20020155335A1 (en) | 2002-10-24 |
| DE60203169D1 (de) | 2005-04-14 |
| DE60203169T2 (de) | 2006-01-19 |
| US6896992B2 (en) | 2005-05-24 |
| CA2444417A1 (en) | 2002-10-31 |
| CN1610985A (zh) | 2005-04-27 |
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