JP6055251B2 - 固体電解コンデンサ - Google Patents
固体電解コンデンサ Download PDFInfo
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- JP6055251B2 JP6055251B2 JP2012208684A JP2012208684A JP6055251B2 JP 6055251 B2 JP6055251 B2 JP 6055251B2 JP 2012208684 A JP2012208684 A JP 2012208684A JP 2012208684 A JP2012208684 A JP 2012208684A JP 6055251 B2 JP6055251 B2 JP 6055251B2
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- Prior art keywords
- electrolytic capacitor
- epoxy resin
- solid electrolytic
- acid
- conductive polymer
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims description 47
- 239000007787 solid Substances 0.000 title claims description 38
- 239000003822 epoxy resin Substances 0.000 claims description 51
- 229920000647 polyepoxide Polymers 0.000 claims description 51
- 229920001940 conductive polymer Polymers 0.000 claims description 31
- 239000007784 solid electrolyte Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000000178 monomer Substances 0.000 claims description 14
- 150000001412 amines Chemical class 0.000 claims description 8
- 239000002019 doping agent Substances 0.000 claims description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 5
- 229940092714 benzenesulfonic acid Drugs 0.000 claims description 5
- JIRHAGAOHOYLNO-UHFFFAOYSA-N (3-cyclopentyloxy-4-methoxyphenyl)methanol Chemical compound COC1=CC=C(CO)C=C1OC1CCCC1 JIRHAGAOHOYLNO-UHFFFAOYSA-N 0.000 claims description 4
- SWDHKZPAUHBMHV-UHFFFAOYSA-N 2-ethoxybenzenesulfonic acid Chemical compound CCOC1=CC=CC=C1S(O)(=O)=O SWDHKZPAUHBMHV-UHFFFAOYSA-N 0.000 claims description 4
- FQBAMYDJEQUGNV-UHFFFAOYSA-N 2-methoxybenzenesulfonic acid Chemical compound COC1=CC=CC=C1S(O)(=O)=O FQBAMYDJEQUGNV-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 125000004434 sulfur atom Chemical group 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 19
- 239000000243 solution Substances 0.000 description 15
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 11
- 229920003986 novolac Polymers 0.000 description 11
- 230000001590 oxidative effect Effects 0.000 description 11
- 239000011888 foil Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000007800 oxidant agent Substances 0.000 description 9
- -1 EMI shields Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- ZRSKSQHEOZFGLJ-UHFFFAOYSA-N ammonium adipate Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCC([O-])=O ZRSKSQHEOZFGLJ-UHFFFAOYSA-N 0.000 description 4
- 235000019293 ammonium adipate Nutrition 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- USEHYZSWYYJCHO-UHFFFAOYSA-N 3-ethyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(CC)COC2=CSC=C21 USEHYZSWYYJCHO-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
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- XNJVIJQATFJERB-UHFFFAOYSA-N 2,3,4-trimethylbenzenesulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C(C)=C1C XNJVIJQATFJERB-UHFFFAOYSA-N 0.000 description 2
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 2
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
- NNIKSVAOFGELNT-UHFFFAOYSA-N 3-butyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(CCCC)COC2=CSC=C21 NNIKSVAOFGELNT-UHFFFAOYSA-N 0.000 description 2
- IQOJIHIRSVQTJJ-UHFFFAOYSA-N 3-chlorobenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC(Cl)=C1 IQOJIHIRSVQTJJ-UHFFFAOYSA-N 0.000 description 2
- MXLYDTCSOHXFFA-UHFFFAOYSA-N 3-methyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(C)COC2=CSC=C21 MXLYDTCSOHXFFA-UHFFFAOYSA-N 0.000 description 2
- BCYACKLUJNIIBY-UHFFFAOYSA-N 3-propan-2-yl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound C(C)(C)C1COC=2C(O1)=CSC=2 BCYACKLUJNIIBY-UHFFFAOYSA-N 0.000 description 2
- GSLCVVGAIHMYDK-UHFFFAOYSA-N 3-propyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(CCC)COC2=CSC=C21 GSLCVVGAIHMYDK-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- ZZXDRXVIRVJQBT-UHFFFAOYSA-M Xylenesulfonate Chemical compound CC1=CC=CC(S([O-])(=O)=O)=C1C ZZXDRXVIRVJQBT-UHFFFAOYSA-M 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- FDOCOSUCHDHMCW-UHFFFAOYSA-K benzenesulfonate iron(3+) Chemical compound [Fe+3].[O-]S(=O)(=O)c1ccccc1.[O-]S(=O)(=O)c1ccccc1.[O-]S(=O)(=O)c1ccccc1 FDOCOSUCHDHMCW-UHFFFAOYSA-K 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229930003836 cresol Natural products 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002391 heterocyclic compounds Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- HLANOUYSOJLOPM-UHFFFAOYSA-N methoxy benzenesulfonate Chemical compound COOS(=O)(=O)C1=CC=CC=C1 HLANOUYSOJLOPM-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229940071104 xylenesulfonate Drugs 0.000 description 2
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 1
- BVYPJEBKDLFIDL-UHFFFAOYSA-N 3-(2-phenylimidazol-1-yl)propanenitrile Chemical compound N#CCCN1C=CN=C1C1=CC=CC=C1 BVYPJEBKDLFIDL-UHFFFAOYSA-N 0.000 description 1
- QMCITVXMMYQIOC-UHFFFAOYSA-M 3-fluorobenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC(F)=C1 QMCITVXMMYQIOC-UHFFFAOYSA-M 0.000 description 1
- GNKLXVLAGYHFRJ-UHFFFAOYSA-N 3-hexyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(CCCCCC)COC2=CSC=C21 GNKLXVLAGYHFRJ-UHFFFAOYSA-N 0.000 description 1
- IFSVANOHBDWYFV-UHFFFAOYSA-N 3-pentyl-2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1C(CCCCC)COC2=CSC=C21 IFSVANOHBDWYFV-UHFFFAOYSA-N 0.000 description 1
- RJWBTWIBUIGANW-UHFFFAOYSA-M 4-chlorobenzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=C(Cl)C=C1 RJWBTWIBUIGANW-UHFFFAOYSA-M 0.000 description 1
- WVSYONICNIDYBE-UHFFFAOYSA-N 4-fluorobenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(F)C=C1 WVSYONICNIDYBE-UHFFFAOYSA-N 0.000 description 1
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 1
- SPBDXSGPUHCETR-JFUDTMANSA-N 8883yp2r6d Chemical compound O1[C@@H](C)[C@H](O)[C@@H](OC)C[C@@H]1O[C@@H]1[C@@H](OC)C[C@H](O[C@@H]2C(=C/C[C@@H]3C[C@@H](C[C@@]4(O[C@@H]([C@@H](C)CC4)C(C)C)O3)OC(=O)[C@@H]3C=C(C)[C@@H](O)[C@H]4OC\C([C@@]34O)=C/C=C/[C@@H]2C)/C)O[C@H]1C.C1C[C@H](C)[C@@H]([C@@H](C)CC)O[C@@]21O[C@H](C\C=C(C)\[C@@H](O[C@@H]1O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C1)[C@@H](C)\C=C\C=C/1[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\1)O)C[C@H]4C2 SPBDXSGPUHCETR-JFUDTMANSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920005497 Acrypet® Polymers 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- YPYBVPOMYVNIFW-UHFFFAOYSA-N C(C(C)C)C1COC=2C(O1)=CSC2 Chemical compound C(C(C)C)C1COC=2C(O1)=CSC2 YPYBVPOMYVNIFW-UHFFFAOYSA-N 0.000 description 1
- SXLAYKBRXUFHTM-UHFFFAOYSA-N C(CCC(C)C)C1COC=2C(O1)=CSC2 Chemical compound C(CCC(C)C)C1COC=2C(O1)=CSC2 SXLAYKBRXUFHTM-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- AJMGSFPWXZNJSJ-UHFFFAOYSA-N O1C2=CSC=C2OCC1CCC(C)C Chemical compound O1C2=CSC=C2OCC1CCC(C)C AJMGSFPWXZNJSJ-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 description 1
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FSMLIJWIXPZMLA-UHFFFAOYSA-N ethoxy benzenesulfonate Chemical compound CCOOS(=O)(=O)C1=CC=CC=C1 FSMLIJWIXPZMLA-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000447 polyanionic polymer Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Description
しかしながら、上述した化合物を導電性高分子溶液に含有させた溶液を用いて作製した固体電解コンデンサは、静電容量と等価直列抵抗(以下、「ESR」と略記する。)における耐熱性及び耐湿性に劣る問題があった。
固体電解質層が、導電性高分子とアミン型エポキシ樹脂を少なくとも含有することを特徴とする固体電解コンデンサである。
本発明の固体電解コンデンサは、誘電体酸化皮膜が形成された弁作用金属上に、固体電解質層を有するものであり、該固体電解質層が、導電性高分子とエポキシ樹脂を少なくとも含有することを特徴とするものである。
2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(EDOT)、
2−メチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−メチル−EDOT)、
2−エチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−エチル−EDOT)、
2−プロピル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−プロピル−EDOT)、
2−イソプロピル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−イソプロピル−EDOT)、
2−ブチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−ブチル−EDOT)、
2−イソブチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−イソブチル−EDOT)、
2−ペンチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−ペンチル−EDOT)、
2−イソペンチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−イソペンチル−EDOT)、
2−ヘキシル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−ヘキシル−EDOT)、
2−イソヘキシル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−イソヘキシル−EDOT)、
2−メチル−3,4−エチレンジチアチオフェン、2−エチル−3,4−エチレンジチアチオフェン、2−プロピル−3,4−エチレンジチアチオフェン、2−イソプロピル−3,4−エチレンジチアチオフェン、2−ブチル−3,4−エチレンジチアチオフェン、2−イソブチル−3,4−エチレンジチアチオフェン、2−ペンチル−3,4−エチレンジチアチオフェン、2−イソペンチル−3,4−エチレンジチアチオフェン、2−ヘキシル−3,4−エチレンジチアチオフェン、2−イソヘキシル−3,4−エチレンジチアチオフェン、が挙げられる。
これらの中でも特に好ましいものは、一般式(1)中、Rが炭素数1〜4の直鎖状又は分岐鎖状のアルキル基で、かつ、Zは酸素原子であるものであり、具体的には、
2−メチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−メチル−EDOT)、
2−エチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−エチル−EDOT)、
2−プロピル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−プロピル−EDOT)、
2−イソプロピル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−イソプロピル−EDOT)、
2−ブチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン
(2−ブチル−EDOT)、が挙げられる。
重合性モノマーとして2−エチル−2,3−ジヒドロチエノ[3,4−b]−1,4−ジオキシン(2−エチル−EDOT)を1.0部、導電性高分子製造用酸化剤溶液として40%パラトルエンスルホン酸第二鉄/n−ブタノール溶液を3.0部、エポキシ樹脂(ビスフェノールA型エポキシ樹脂、エピコート828、三菱化学(株))を0.5部、硬化剤として無水酸化物を0.4部、硬化促進剤としてイミダゾールを0.05部準備し、それらを混合した液にコンデンサ素子を100秒間浸漬後、45℃で1時間、200℃で20時間加熱して、化学酸化重合を行い、コンデンサ素子上にポリ−2−エチル−EDOTとエポキシ樹脂とを含有する固体電解質層を形成させた。
参考例1に記載のエポキシ樹脂を表1に対応するエポキシ樹脂に代えた以外は参考例1と同様にして固体電解コンデンサを作製した。
参考例1に記載のエポキシ樹脂、硬化剤、硬化促進剤を用いなかった以外は、参考例1と同様にして固体電解コンデンサを作製した。
参考例1に記載のエポキシ樹脂、硬化剤、硬化促進剤の代わりに表1に記載の添加剤を用いた以外は、参考例1と同様にして固体電解コンデンサを作製した。
耐熱性試験は、温度125℃の条件下で行い、静電容量とESRを測定した。耐湿性試験は、温度60℃、湿度95%の条件下で行い、静電容量とESRを測定した。耐熱性試験並びに耐湿性試験は500時間とした。
エポキシ樹脂(A):ビスフェノールA型エポキシ樹脂、エピコート828、三菱化学(株)
エポキシ樹脂(B):フェノールノボラック型エポキシ樹脂、エピコート152、三菱化学(株)
エポキシ樹脂(C):アミン型エポキシ樹脂、YH−434、東都化学(株)
添加剤(a):ペンタエリスリトール
添加剤(b):ヒドロキシエチルアクリレート
添加剤(c):ポリアクリルアミド
アクリル樹脂:アクリペットIR H−70 三菱レーヨン(株)
ポリウレタン樹脂:パンデックスT−8190N、大日本インキ化学工業(株)
Claims (4)
- 誘電体酸化皮膜が形成された弁作用金属上に、固体電解質層を有する固体電解コンデンサにおいて、
固体電解質層が、導電性高分子とアミン型エポキシ樹脂を少なくとも含有することを特徴とする固体電解コンデンサ。 - 固体電解質層中におけるアミン型エポキシ樹脂の含有量が、1.0〜70質量%であることを特徴とする請求項1に記載の固体電解コンデンサ。
- ドーパント成分が、ベンゼンスルホン酸、パラトルエンスルホン酸、メトキシベンゼンスルホン酸、エトキシベンゼンスルホン酸、キシレンスルホン酸からなる群より選ばれる1種であることを特徴とする請求項3に記載の固体電解コンデンサ。
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