WO2004042757A1 - 電解コンデンサ - Google Patents
電解コンデンサ Download PDFInfo
- Publication number
- WO2004042757A1 WO2004042757A1 PCT/JP2003/014216 JP0314216W WO2004042757A1 WO 2004042757 A1 WO2004042757 A1 WO 2004042757A1 JP 0314216 W JP0314216 W JP 0314216W WO 2004042757 A1 WO2004042757 A1 WO 2004042757A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cathode
- electrolytic capacitor
- electrolytic
- capacitor
- anode
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 156
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000011247 coating layer Substances 0.000 claims abstract description 36
- 239000003792 electrolyte Substances 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 28
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 27
- 239000000057 synthetic resin Substances 0.000 claims abstract description 27
- 238000005524 ceramic coating Methods 0.000 claims abstract description 22
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000002978 peroxides Chemical class 0.000 claims abstract description 16
- 229920005549 butyl rubber Polymers 0.000 claims abstract description 15
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920001577 copolymer Polymers 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims description 108
- 239000008151 electrolyte solution Substances 0.000 claims description 42
- UYOMQIYKOOHAMK-UHFFFAOYSA-K aluminum hydron tetrafluoride Chemical compound [H+].[F-].[F-].[F-].[F-].[Al+3] UYOMQIYKOOHAMK-UHFFFAOYSA-K 0.000 claims description 27
- 238000000605 extraction Methods 0.000 claims description 23
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000004703 alkoxides Chemical class 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract 2
- 239000004971 Cross linker Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- -1 imidazolinium cation Chemical class 0.000 description 32
- 239000007788 liquid Substances 0.000 description 25
- 239000011248 coating agent Substances 0.000 description 22
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 22
- 238000000576 coating method Methods 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 12
- 235000011007 phosphoric acid Nutrition 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- 239000010407 anodic oxide Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 238000005530 etching Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 7
- 239000005060 rubber Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 150000001768 cations Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003929 acidic solution Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 3
- 239000001741 Ammonium adipate Substances 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 235000019293 ammonium adipate Nutrition 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 150000003335 secondary amines Chemical class 0.000 description 3
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- WKFQMDFSDQFAIC-UHFFFAOYSA-N 2,4-dimethylthiolane 1,1-dioxide Chemical compound CC1CC(C)S(=O)(=O)C1 WKFQMDFSDQFAIC-UHFFFAOYSA-N 0.000 description 2
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 description 2
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 125000000320 amidine group Chemical class 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 150000001923 cyclic compounds Chemical group 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- DHCJWWQFOMHARO-UHFFFAOYSA-N n-ethylbutanamide Chemical compound CCCC(=O)NCC DHCJWWQFOMHARO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 2
- 150000003016 phosphoric acids Chemical class 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 159000000001 potassium salts Chemical class 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 239000003586 protic polar solvent Substances 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- PYOLJOJPIPCRDP-UHFFFAOYSA-N 1,1,3-trimethylcyclohexane Chemical compound CC1CCCC(C)(C)C1 PYOLJOJPIPCRDP-UHFFFAOYSA-N 0.000 description 1
- XLSXKCPCBOMHON-UHFFFAOYSA-N 1,1-dimethoxypropan-1-ol Chemical compound CCC(O)(OC)OC XLSXKCPCBOMHON-UHFFFAOYSA-N 0.000 description 1
- OTPDWCMLUKMQNO-UHFFFAOYSA-N 1,2,3,4-tetrahydropyrimidine Chemical group C1NCC=CN1 OTPDWCMLUKMQNO-UHFFFAOYSA-N 0.000 description 1
- HJSYENHCQNNLAS-UHFFFAOYSA-N 1,2,4-trimethyl-4,5-dihydroimidazole Chemical compound CC1CN(C)C(C)=N1 HJSYENHCQNNLAS-UHFFFAOYSA-N 0.000 description 1
- AGMJWUBJIPQHBM-UHFFFAOYSA-N 1,2,4-trimethylimidazole Chemical compound CC1=CN(C)C(C)=N1 AGMJWUBJIPQHBM-UHFFFAOYSA-N 0.000 description 1
- QEIHVTKMBYEXPZ-UHFFFAOYSA-N 1,2-dimethyl-4,5-dihydroimidazole Chemical compound CN1CCN=C1C QEIHVTKMBYEXPZ-UHFFFAOYSA-N 0.000 description 1
- ZFDWWDZLRKHULH-UHFFFAOYSA-N 1,2-dimethyl-5,6-dihydro-4h-pyrimidine Chemical compound CN1CCCN=C1C ZFDWWDZLRKHULH-UHFFFAOYSA-N 0.000 description 1
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical compound CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 description 1
- JJNFHWKVZWAKEB-UHFFFAOYSA-N 1,3,4-trimethylimidazolidin-2-one Chemical compound CC1CN(C)C(=O)N1C JJNFHWKVZWAKEB-UHFFFAOYSA-N 0.000 description 1
- VZXTWGWHSMCWGA-UHFFFAOYSA-N 1,3,5-triazine-2,4-diamine Chemical compound NC1=NC=NC(N)=N1 VZXTWGWHSMCWGA-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- UBRWPVTUQDJKCC-UHFFFAOYSA-N 1,3-bis(2-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC(C(C)(C)OOC(C)(C)C)=C1 UBRWPVTUQDJKCC-UHFFFAOYSA-N 0.000 description 1
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- MCVXHGJXDHZDJG-UHFFFAOYSA-N 1-butylcyclohexa-2,4-diene-1-carboperoxoic acid Chemical compound CCCCC1(C(=O)OO)CC=CC=C1 MCVXHGJXDHZDJG-UHFFFAOYSA-N 0.000 description 1
- VMZNMSUASLBPDS-UHFFFAOYSA-N 1-ethyl-2-methyl-4,5-dihydroimidazole Chemical compound CCN1CCN=C1C VMZNMSUASLBPDS-UHFFFAOYSA-N 0.000 description 1
- NYYVCPHBKQYINK-UHFFFAOYSA-N 1-ethyl-2-methylimidazole Chemical compound CCN1C=CN=C1C NYYVCPHBKQYINK-UHFFFAOYSA-N 0.000 description 1
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 1
- VWUDGSYCJGEGOI-UHFFFAOYSA-N 1-methyl-2-phenyl-4,5-dihydroimidazole Chemical compound CN1CCN=C1C1=CC=CC=C1 VWUDGSYCJGEGOI-UHFFFAOYSA-N 0.000 description 1
- ANFXTILBDGTSEG-UHFFFAOYSA-N 1-methyl-4,5-dihydroimidazole Chemical compound CN1CCN=C1 ANFXTILBDGTSEG-UHFFFAOYSA-N 0.000 description 1
- ABNDDOBSIHWESM-UHFFFAOYSA-N 1-methyl-5,6-dihydro-4h-pyrimidine Chemical compound CN1CCCN=C1 ABNDDOBSIHWESM-UHFFFAOYSA-N 0.000 description 1
- FGYADSCZTQOAFK-UHFFFAOYSA-N 1-methylbenzimidazole Chemical compound C1=CC=C2N(C)C=NC2=C1 FGYADSCZTQOAFK-UHFFFAOYSA-N 0.000 description 1
- SEULWJSKCVACTH-UHFFFAOYSA-N 1-phenylimidazole Chemical compound C1=NC=CN1C1=CC=CC=C1 SEULWJSKCVACTH-UHFFFAOYSA-N 0.000 description 1
- WVGXBYVKFQJQGN-UHFFFAOYSA-N 1-tert-butylperoxy-2-propan-2-ylbenzene Chemical compound CC(C)C1=CC=CC=C1OOC(C)(C)C WVGXBYVKFQJQGN-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- DEXUYCSHAAHZFT-UHFFFAOYSA-N 2-benzyl-4-methyl-1h-benzimidazole Chemical compound N=1C=2C(C)=CC=CC=2NC=1CC1=CC=CC=C1 DEXUYCSHAAHZFT-UHFFFAOYSA-N 0.000 description 1
- UINDRJHZBAGQFD-UHFFFAOYSA-N 2-ethyl-1-methylimidazole Chemical compound CCC1=NC=CN1C UINDRJHZBAGQFD-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- OMQHDIHZSDEIFH-UHFFFAOYSA-N 3-Acetyldihydro-2(3H)-furanone Chemical compound CC(=O)C1CCOC1=O OMQHDIHZSDEIFH-UHFFFAOYSA-N 0.000 description 1
- SJZRECIVHVDYJC-UHFFFAOYSA-N 4-hydroxybutyric acid Chemical compound OCCCC(O)=O SJZRECIVHVDYJC-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- PDAXJVMXHHATAJ-UHFFFAOYSA-N CCCCO[PH2]=O Chemical compound CCCCO[PH2]=O PDAXJVMXHHATAJ-UHFFFAOYSA-N 0.000 description 1
- JYFHYPJRHGVZDY-UHFFFAOYSA-N Dibutyl phosphate Chemical compound CCCCOP(O)(=O)OCCCC JYFHYPJRHGVZDY-UHFFFAOYSA-N 0.000 description 1
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- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
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- 229920000877 Melamine resin Polymers 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000004962 Polyamide-imide Substances 0.000 description 1
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- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001061127 Thione Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
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- 239000000010 aprotic solvent Substances 0.000 description 1
- RATMLZHGSYTFBL-UHFFFAOYSA-N azanium;6-hydroxy-6-oxohexanoate Chemical compound N.OC(=O)CCCCC(O)=O RATMLZHGSYTFBL-UHFFFAOYSA-N 0.000 description 1
- 150000001556 benzimidazoles Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- KTHXBEHDVMTNOH-UHFFFAOYSA-N cyclobutanol Chemical compound OC1CCC1 KTHXBEHDVMTNOH-UHFFFAOYSA-N 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- XCIXKGXIYUWCLL-UHFFFAOYSA-N cyclopentanol Chemical compound OC1CCCC1 XCIXKGXIYUWCLL-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-N ethyl dihydrogen phosphate Chemical compound CCOP(O)(O)=O ZJXZSIYSNXKHEA-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical group C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- BCDIWLCKOCHCIH-UHFFFAOYSA-N methylphosphinic acid Chemical compound CP(O)=O BCDIWLCKOCHCIH-UHFFFAOYSA-N 0.000 description 1
- KERBAAIBDHEFDD-UHFFFAOYSA-N n-ethylformamide Chemical compound CCNC=O KERBAAIBDHEFDD-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000005429 oxyalkyl group Chemical group 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010060 peroxide vulcanization Methods 0.000 description 1
- 125000005634 peroxydicarbonate group Chemical group 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-M phthalate(1-) Chemical compound OC(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-M 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 229940070891 pyridium Drugs 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- SEACXNRNJAXIBM-UHFFFAOYSA-N triethyl(methyl)azanium Chemical compound CC[N+](C)(CC)CC SEACXNRNJAXIBM-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/028—Organic semiconducting electrolytes, e.g. TCNQ
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
Definitions
- the present invention relates to an electrolytic capacitor, and more particularly to an electrolytic capacitor having low impedance characteristics and high withstand voltage characteristics.
- An electrolytic capacitor generally has a structure as shown in FIG. That is, a strip-shaped high-purity aluminum foil is chemically or electrochemically etched to enlarge the surface of the aluminum foil, and the aluminum foil is subjected to a chemical conversion treatment in a chemical solution such as an aqueous solution of ammonium borate.
- the anode electrode foil 2 having an oxide film layer formed on the surface of the anode electrode foil 2 and the cathode electrode foil 3 made of high-purity aluminum foil that has been subjected only to etching treatment are passed through a separator 11 made of manila paper or the like. To form a capacitor element 1.
- the capacitor element 1 is impregnated with an electrolytic solution for driving an electrolytic capacitor, and then stored in a bottomed cylindrical outer case 10 made of aluminum or the like.
- a sealing body 9 made of a volatile rubber is mounted, and the outer case 10 is sealed by drawing.
- the lead wires 4 and 5 which are the electrode lead-out means for pulling out the electrodes of both poles to the outside, are attached to the anode electrode foil 2 and the cathode electrode foil 3 by stitching, ultrasonic welding, Connected by means.
- the lead wires 4 and 5, which are the electrode lead-out means consist of a round bar portion 6 made of aluminum and a connecting portion 7 in contact with the bipolar electrode foils 2 and 3.
- An external connection portion 8 made of a metal that can be attached is fixed by means such as welding.
- the voltage for driving the electrolytic capacitor having high conductivity impregnated in the capacitor element As a solution, an imidazolinium cation, which is a quaternized cation of a cyclic amidine compound as a solute, with a main solvent of arptyrolactone as a cation component, a cation component, and an acid conjugate base as anion.
- the one in which the salt used as the component is dissolved is used. (See Japanese Unexamined Patent Application Publication No. 08-321440 and Japanese Unexamined Patent Application Publication No. 08-321441).
- the electrolytic capacitor cannot cope with such low impedance characteristics, and the withstand voltage is limited to 30 V. Although it can cope with 28 V, it is more than 84 V. It could not meet the demand for a high withstand voltage.
- the electrolyte tends to leak from the through hole for the lead wire 5 for drawing out the cathode of the sealing body 9, and the electrolyte leaks, so that the capacitance of the electrolytic capacitor decreases.
- there is a disadvantage that the electrical characteristics of the capacitor are deteriorated and the life of the electrolytic capacitor is shortened as a result.
- an object of the present invention is to provide an electrolytic capacitor having low impedance characteristics, high withstand voltage characteristics of 100 V class, and excellent liquid leakage characteristics and high-temperature life characteristics. Disclosure of the invention
- a first electrolytic capacitor according to the present invention is a capacitor element comprising a separator wound around an anode electrode foil provided with anode extraction means and a cathode electrode foil provided with cathode extraction means, and impregnated with an electrolyte.
- An outer case for accommodating the capacitor element; and a sealing body for sealing an opening of the outer case, wherein an electrolytic solution containing aluminum tetrafluoride is used as the electrolytic solution, and a sealing member for a cathode extracting means.
- a ceramic coating layer is formed at the contact portion with the ceramic coating.
- FIG. 1 is an internal sectional view showing the structure of an electrolytic capacitor
- FIG. 2 is an exploded perspective view showing the structure of a capacitor element
- FIG. 3 is an internal sectional view showing the structure of a large-sized electrolytic capacitor.
- the structure of the aluminum electrolytic capacitor is the same as the conventional structure, as shown in Figs.
- the capacitor element 1 is formed by winding an anode electrode foil 2 and a cathode electrode foil 3 via a separator 11.
- a lead wire 4 and a lead wire 5 which are an anode extracting means and a cathode extracting means are connected to the anode electrode foil 2 and the cathode electrode foil 3, respectively.
- These lead wire 4 and lead wire 5 are composed of a connecting portion 7 connected to each foil, a round bar portion 6 continuous with the connecting portion 7, and an external connecting portion 8 welded to the round bar portion 6.
- each foil and lead wire are stitched, ultrasonic welding, etc. Are connected mechanically.
- the anode electrode foil 2 is obtained by chemically or electrochemically etching an aluminum foil with a purity of at least 99% in an acidic solution, expanding the surface, and then forming it in an aqueous solution of ammonium borate or ammonium adipate. And use an anodic oxide film layer formed on the surface.
- the capacitor element 1 impregnated with the electrolyte is housed in a bottomed cylindrical outer case 10 made of aluminum, and a through hole for leading the lead wires 4 and 5 is formed at the open end of the outer case 10.
- the sealing of the electrolytic capacitor is performed by inserting the sealing body 9 having the above and further caulking the end of the outer case 10.
- an aluminum conductor comprising a round bar portion 6 and a flat portion 7 formed by cutting an aluminum wire rod intermittently pressed into a predetermined size is formed. Then, a chemical conversion treatment is performed to form an anodic oxide film on the surface. Thereafter, external connection portions 8 made of CP wires are welded to the end surfaces of the aluminum conductor to form lead wires 4 and 5.
- ceramics coating is performed on the aluminum conductor serving as the cathode extraction means. That is, a coating agent composed of a metal alkoxide-based ceramic is discharged and coated on the round bar portion 6 of the aluminum conductor having the anodic oxide film formed on the surface as described above, followed by heat treatment, and then the coating is performed again. After the agent is discharged and coated, it is heat treated again to form a coating layer on the aluminum conductor.
- the ceramic used in the metal-alkoxy-based ceramics A 1 2 0 3, S i ⁇ 2, Z R_ ⁇ 2, T i 0 2, M g O, H 2 B 0 3, C r 2 O 3, B a T I_ ⁇ 3, P b T i 0 3 , KT A_ ⁇ 3, and the like.
- the ceramic used herein considering the coatings properties, preferably one selected from among A 1 2 0 3, S i 0 2, Z r 0 2 or is two or more, further, considering the strength, it is preferable to use the a l 2 ⁇ 3, S i 0 2 made of a mixture.
- the round bar 6 is dipped in There is also a way to do this. That is, the aluminum conductor is immersed in a coating agent, then heat-treated, then immersed again in the coating agent, and then heat-treated again to form a coating layer on the aluminum conductor. Thereafter, the flat portion 7 is immersed in a methanol solution, the coating layer is removed by ultrasonic waves or the like, and the ceramic coating layer is left only on the round bar portion 6.
- the adjustment at the time of removing the coating layer is not easy, and the above-described discharge and coating method is more preferable for forming the coating layer on the round bar portion with high accuracy.
- the flat portions 7 of the lead wires 4 and 5 created as described above are mechanically connected to the electrode foils 2 and 3 by a stitch method, ultrasonic welding, or the like.
- a stitch method ultrasonic welding, or the like.
- the ceramic coating layer is formed in advance before the capacitor manufacturing process. Is preferred.
- the lead wire 5 must be formed at least on the round bar portion 6.
- the electrolytic solution for an electrolytic capacitor used in the present invention contains an aluminum tetrafluoride salt.
- the aluminum tetrafluoride salt is a salt containing aluminum tetrafluoride as an anion component.
- an ammonium salt, an amine salt, a quaternary ammonium salt, or a quaternized cyclic amidinium ion is used as a cation component.
- Salts can be used.
- the amines constituting the amine salt include primary amines (methylamine, ethylamine, propylamine, butylamine, ethylenediamine, monoethanolamine, etc.), and secondary amines (dimethylamine, getylamine, dipropylamine, ethylmethylamine, diphenylamine, diethanolamine, etc.).
- the quaternary ammonium constituting the quaternary ammonium salt includes tetraalkylammonium (tetramethylammonium, tetraethylammonium, tetrapropane). Luammonium, tetrabutylammonium, methyltriethylammonium, dimethylgetylammonium, etc., pyridium (1-methylpyridium, 1-ethylpyridium, 1,3-ethylpyridium, etc.) Is mentioned.
- the quaternized cyclic amidinium ion serving as a force thione component is a cyclic compound having an N, N, N'-substituted amidine group.
- the following compounds are examples of cyclic compounds having a graded cation and having an N, N, N'-substituted amidine group.
- Imidazole monocyclic compounds (1-methylimidazole, 1-phenylimidazole, 1,2-dimethylimidazole, 1-ethyl-2-methylimidazole, 2-ethyl-1-methylimidazole, 1,2 —Jetimidazole, imidazole homologues such as 1,2,4-trimethylimidazole and the like, oxyalkyl derivatives such as 1-methyl-2-oxymethylimidazole, 1-methyl-2-oxoxethylimidazole, 1 —Nitro derivatives such as methyl-4- (5) -nitroimidazole; 1,2-dimethyl_5 (4) -aminoimidazole—amino derivatives such as toluene; benzimidazole compounds (1-methylbenzoimidazole, Compounds having methyl-2-benzylbenzimidazole, 1-methyl-5 (6) -1-nitrobenzimidazole, etc.), 2-imidazoline ring 1-Methylimidazo
- a protic polar solvent As the solvent used for the electrolytic solution of the present invention, a protic polar solvent, an aprotic solvent, and a mixture thereof can be used.
- protic polar solvents include monovalent alcohols (ethanol, propanol, butanol, phenol, hexanol). , Cyclobutanol, cyclopentanol, cyclohexanol, benzyl alcohol, etc.), polyhydric alcohols and oxy alcohol compounds (ethylene glycol, propylene glycol, glycerin, methyl sorb, ethyl sorb, methoxy) Propylene glycol, dimethoxypropanol, etc.).
- aprotic polar solvents examples include amides (N-methylformamide, N, N-dimethylformamide, N-ethylformamide, N, N-getylformamide, N-methylacetamide, N, N-dimethyl Acetamide, N-ethylethylacetamide, N, N-ethylethylacetamide, hexamethylphosphoric amide, etc.), lactones (arptyrolactone, avavalerolactone, ⁇ -valerolactone, etc.), sulfolane (Sulfolane, 3-methylsulfolane, 2,4-dimethylsulfolane, etc.), Cyclic amides ( ⁇ -Methyl-2-pyrrolidone, etc.) Nitrite), nitrile type (acetitolitol etc.), sulfoxide type (dimethyl sulfoxide etc.), 2-imi Zolidinones [1,3-dialkyl-1-imidazo
- arptyrolactone because impedance characteristics are improved, and it is preferable to use sulfolane, 3-methylsulfolane, and 2,4-dimethylsulfolane because high-temperature characteristics are improved, and it is preferable to use ethylene glycol. This is preferable because the characteristics are improved.
- the cathode lead wire and the cathode electrode foil constitute a local battery, and force current flows through the cathode lead wire.
- a force current flows through the cathode lead wire, and as a result, at the electrolyte interface between the round bar portion 6 and the connection portion 7 of the cathode lead wire. Hydroxyl is formed.
- the hydroxyl ion thus generated reacts with the quaternized cyclic amidinium, and the quaternized cyclic amidinium is opened to form a secondary amine.
- the solvent aptirolactone also reacts with the hydroxyl ions to generate hydroxybutyric acid, thereby lowering the pH.
- the pH decreases in this way the quaternized cyclic amidinium is formed by ring opening, the secondary amine is closed, and the quaternized cyclic amidinium salt is formed again, and this quaternized cyclic amidinium is formed. Since the salt has no volatility and high hygroscopicity, the quaternized cyclic amidium salt regenerated between the round bar portion of the cathode lead wire and the sealing body absorbs moisture and causes a liquid leakage state. Become.
- a ceramic coating layer is formed at the contact portion of the power cathode extracting means with the sealing member, and an aluminum tetrafluoride salt of a quaternized cyclic amidinium compound is used as a solute. Therefore, generation of hydroxyl ions near the cathode extraction means is hardly observed in order to suppress the current flowing through the cathode extraction means.
- aluminum tetrafluoride salt of the quaternized cyclic amidinium compound reacts with the hydroxide ions. It appears to be of low potential, but these synergistic effects prevent a leak condition. Leakage under no-load conditions can be similarly prevented.
- the electrolytic capacitor of the present invention is a capacitor element comprising: an anode electrode foil provided with anode extraction means; a cathode electrode foil provided with cathode extraction means; a separator wound around the separator, and impregnated with an electrolytic solution; An outer case for accommodating the capacitor element; and a sealing body for sealing an opening of the outer case, wherein an electrolytic solution containing an aluminum tetrafluoride salt is used as the electrolytic solution.
- An insulating synthetic resin layer is formed at a contact portion of the pole extraction means with the sealing body.
- the structure of the electrolytic condenser is the same as that of the first electrolytic condenser, but in the present invention, the aluminum synthetic conductor serving as the cathode lead-out means is coated with an insulating synthetic resin layer.
- the insulating synthetic resin material examples include thermosetting resins such as epoxy resin, phenol resin, furan resin, melamine resin, xylene resin, and guanamine resin, fluororesin, polybutadiene, polyamide, polyamideimide, polyarylate, and polyylate.
- Thermoplastic resins such as imides, polyetherimides, polyetheretherketones, polycarboxylic acids, polyvinylformals, polyphenylene sulfides, liquid crystal polymers, ketone resins, coumarone resins, and MBS resins. These can be used by blending a coupling agent of, for example, a silane type or a titanate type at a ratio of 10% by weight or less.
- an insulating synthetic resin layer is formed on the aluminum conductor by discharging and coating a coating agent composed of a liquid melt of the insulating synthetic resin adjusted by heating or an appropriate solvent, and then performing a drying treatment.
- it may be formed by applying a heat-fusible synthetic resin film to the round bar portion 6 and then performing a heat treatment.
- a coating method there is a method of coating the round bar portion 6 by dipping a coating agent. That is, the aluminum conductor is immersed in a coating agent and then dried to form a coating layer on the aluminum conductor. Thereafter, the flat part 7 is immersed in a methanol solution, the coating layer is removed by ultrasonic waves or the like, and the insulating synthetic resin layer is left only on the round bar part 6.
- this method adjustment when removing the coating layer is not easy, and the round bar portion is precisely coated.
- the insulating synthetic resin layer is formed in advance before the capacitor manufacturing process. Is preferred. Furthermore, in order to obtain a sufficient liquid leakage prevention effect, it must be formed at least on the round bar portion 6 of the lead wire 5.
- the behavior of the leakage of the electrolytic solution is the same as that of the first electrolytic condenser, but in the present invention, an insulating synthetic resin layer is formed at the contact portion of the cathode extracting means with the sealing member, and the solute is formed as a solute.
- An aluminum tetrafluoride salt of a graded cyclic amidinium compound is used. Therefore, the generation of hydroxyl ions in the vicinity of the cathode extraction means is hardly observed in order to suppress the current flowing through the cathode extraction means, and further, the aluminum tetrafluoride salt of the quaternized cyclic amidinium compound is converted to hydroxyl ions. Although the reactivity seems to be low, the synergistic action of these prevents the liquid leakage state. Leakage under no load can also be prevented.
- An electrolytic capacitor according to the present invention includes a capacitor element formed by winding an anode electrode foil, a cathode electrode foil, and a separator and impregnating with an electrolytic solution, an outer case for housing the capacitor element, and an opening of the outer case.
- the configuration of the electrolytic capacitor is the same as that of the first electrolytic capacitor.
- a peroxide obtained by adding a peroxide as a crosslinking agent to a butyl rubber polymer composed of a copolymer of isobutylene, isoprene, and divinylbenzene is used as a sealing body.
- ketone peroxides examples include peroxide ketals, hide-peroxides, dialkyl peroxides, disilver oxides, peroxydicarbonates, and peroxyesters.
- the electrolytic capacitor of the present invention uses a partially cross-linked peroxide butyl rubber obtained by adding a peroxide as a cross-linking agent to a butyl rubber polymer composed of a copolymer of isobutylene, isoprene, and divinylbenzene as a sealing body. Since the electrolyte containing the aluminum tetrafluoride salt is used, it has low impedance characteristics and a high withstand voltage characteristic of 100 V class. The life characteristics are also good.
- the electrolytic capacitor of the present invention is an electrolytic solution comprising an aluminum tetrafluoride salt in a capacitor element wound with a separator interposed between an anode foil having an anode lead-out terminal and a cathode foil having a cathode lead-out terminal. Impregnating the capacitor element into a bottomed cylindrical outer case.
- the open end of the case is closed with a sealing member having a rivet for connecting the cathode lead-out terminal and the external terminal, and the contact of the rivet with the sealing member is provided. It is characterized in that a ceramic coating layer is formed on the part.
- an electrolytic solution containing an aluminum tetrafluoride salt is impregnated into a capacitor element wound with a separator interposed between an anode foil having an anode lead terminal and a cathode foil having a cathode lead terminal.
- a sealing member provided with a rivet for connecting the cathode extraction terminal and an external terminal. And forming a ceramic coating.
- the structure of the aluminum electrolytic capacitor is such that the capacitor element 1 is formed by winding an anode foil and a cathode foil via a separator.
- An anode lead terminal 18 and a cathode lead terminal 19 are connected to the anode foil and the cathode foil, respectively.
- the anode foil is prepared by chemically or electrochemically etching an aluminum foil with a purity of 99% or more in an acidic solution and expanding the surface, and then performing a chemical conversion treatment in an aqueous solution such as ammonium borate or ammonium adipic acid. Use an anodic oxide film layer on the surface.
- the cathode foil a foil obtained by etching an aluminum foil having a purity of 99% or more similarly to the anode foil is used.
- a chemical conversion treatment of 1 to 2 V may be performed.
- the anode extraction terminal 18 and the cathode extraction terminal 19 each use an aluminum foil having a purity of 99% or more.
- rivets 14 and 15 made of aluminum are buried in the vicinity of the center of a sealing member 13 formed by laminating a rigid insulating plate such as a phenol resin laminate and an elastic member such as a rubber plate.
- These rivets 14 and 15 consist of a round bar 16 and a head 17.
- the rivet 15 on the cathode side is provided with a ceramic coating layer.
- a coating agent composed of a metal alkoxide-based ceramic is discharged and coated on the round bar portion 16 of the rivet 15 and then dried to form a coating layer on the aluminum conductor.
- the rivet 15 in consideration of the effect of preventing liquid leakage, the rivet 15 must be formed at least on the round bar portion 16. Further, it is more preferable that the rivet is subjected to a chemical conversion treatment before coating to form an anodic oxide film on the surface.
- the ceramic coating material and the coating method used here are the same as those of the first electrolytic capacitor.
- the rivets 14 and 15 created as described above are buried near the center of a sealing member 13 formed by laminating a hard insulating plate such as a phenolic resin laminate and an elastic member such as a rubber plate. Then, external terminals 20 are provided on the heads 17 of the rivets 14 and 15, and the ends of the rivets 14 and 15 are caulked to fix the external terminals 20.
- a coating may be similarly applied to the cathode lead-out terminal 19.
- the capacitor element 1 configured as described above is impregnated with an electrolytic solution for driving an electrolytic capacitor.
- the same electrolytic solution as used for the first electrolytic capacitor is used.
- the electrochemical relationship between the cathode lead wire 5 and the cathode foil described for the small electrolytic capacitor is based on the cathode rivet 15 or the cathode lead terminal 19 and the cathode. It is thought that there was a similar leak between the foil and the leak.
- a ceramic coating layer is formed on the cathode side rivet 15 or the cathode lead-out terminal 19, no load is applied. It is considered that current did not flow through the rivet 15 on the cathode side or the cathode lead-out terminal 19 on both sides of the load, and leakage was prevented.
- the electrolytic capacitor of the present invention described above has low impedance characteristics, high withstand voltage characteristics of 100 V class, and good liquid leakage characteristics. It also has good high temperature life characteristics. Next, a large fifth electrolytic capacitor will be described.
- the electrolytic capacitor of the present invention comprises an electrolytic solution containing an aluminum tetrafluoride salt in a capacitor element wound by interposing a separator between an anode foil having an anode lead terminal and a cathode foil having a cathode lead terminal.
- the capacitor element is housed in a bottomed cylindrical outer case, and the open end of the case is sealed with a sealing member provided with rivets for connecting the cathode lead-out terminal and the external terminal.
- an insulating synthetic resin layer is formed at a contact portion of the rivet with the sealing member.
- the electrolytic solution containing an aluminum tetrafluoride salt is impregnated in the capacitor element wound by interposing a separator between the anode foil having the anode lead-out terminal and the cathode foil having the cathode lead-out terminal.
- the configuration of the electrolytic capacitor is the same as that of the fourth electrolytic capacitor.
- the rivet 15 on the cathode side is coated with an insulating synthetic resin layer. That is, a coating agent made of an insulating synthetic resin material is discharged onto the round bar portion 16 of the rivet 15, coated, and then dried to form a coating layer on the aluminum conductor. I do.
- the rivet 15 in consideration of the effect of preventing liquid leakage, the rivet 15 must be formed at least on the round bar portion 16. Further, it is more preferable that the rivet is subjected to a chemical conversion treatment before coating to form an anodic oxide film on the surface.
- the insulating synthetic resin material used here and the coating method are the same as those of the second electrolytic capacitor.
- the behavior of the electrolyte leakage is the same as that of the fourth electrolytic capacitor, but in the present invention, an insulating synthetic resin layer is formed on the cathode side rivet 15 or the cathode extraction terminal 19. Therefore, it is considered that no current flows to the cathode side rivet 15 or the cathode extraction terminal 19 under both load and no load, thereby preventing liquid leakage.
- the electrolytic capacitor of the present invention described above has low impedance characteristics, high withstand voltage characteristics of 100 V class, and good liquid leakage characteristics. It also has good high temperature life characteristics. Further, in the first to fifth electrolytic capacitors of the present invention, an electrode foil subjected to a phosphoric acid treatment is used as the electrode foil. Although the effect of the present invention can be obtained by using one of the anode electrode foil and the cathode electrode foil, deterioration of both electrode foils is suppressed when both are used. Normally, high-purity aluminum foil is chemically or electrochemically etched to form an etched foil.
- the electrode foil of the present invention includes a pre-treatment, an intermediate treatment, or a post-treatment of AC etching in this etching step.
- An etching foil obtained by, for example, performing a phosphate aqueous solution immersion treatment is used as a cathode electrode foil. Then, the electrode foil obtained by subjecting the etched foil or the etched foil not subjected to the phosphoric acid treatment to phosphoric acid conversion, or immersing in phosphoric acid before, during, or after the treatment is used as the anode electrode foil.
- a phosphorus compound when added to the electrolytic solution for an electrolytic capacitor, the effect of the present invention is improved.
- the phosphorus compound include the following. Orthophosphoric acid, phosphorous acid, hypophosphorous acid, and salts thereof, and these salts include ammonium salts, aluminum salts, sodium salts, calcium salts, and potassium salts.
- Phosphate compounds such as ethyl phosphate, getyl phosphate, butyl phosphate, dibutyl phosphate, etc .; phosphonic acid compounds such as 1-hydroxyethylidene-1,1-diphosphonic acid, aminotrimethylenephosphonic acid, phenylphosphonic acid, etc. And the like.
- phosphinic acid compounds such as methylphosphinic acid and butyl phosphinate can be mentioned.
- condensed phosphoric acids or salts thereof can be mentioned.
- Linear condensed phosphoric acid such as pyrophosphoric acid, tripolyphosphoric acid, and tetrapolyphosphoric acid, metaphosphoric acid
- It is a cyclic condensed phosphoric acid such as hexametaphosphoric acid, or a combination of such a chain or cyclic condensed phosphoric acid.
- salts of these condensed phosphoric acids ammonium salts, aluminum salts, sodium salts, calcium salts, potassium salts and the like can be used.
- the amount of addition is 0.05-5 wt%, preferably 0.1-2 wt%.
- the above-described electrolytic capacitor of the present invention has low impedance characteristics and 100 V class withstand voltage characteristics, and further has excellent high-temperature life characteristics.
- the moisture in the electrolyte increases the reactivity between the electrolyte and the electrode foil, thereby affecting the characteristics. Since the capacitor uses phosphor-treated electrode foil, the reaction between the electrolyte and the electrode foil is suppressed, and the high-temperature life characteristics are further stabilized.
- the capacitor element 1 is formed by winding the anode electrode foil 2 and the cathode electrode foil 3 via the separator 11. To form. Also, as shown in FIG. 2, a lead wire 4 for leading the anode and a lead wire 5 for leading the cathode are connected to the anode electrode foil 2 and the cathode electrode foil 3, respectively.
- lead wires 4, 5 are composed of a connecting portion 7 in contact with the electrode foil, a round bar portion 6 formed integrally with the connecting portion 7, and an external connecting portion 8 fixed to the tip of the round bar portion 6.
- the connecting portion 7 and the round bar portion 6 are made of 99% aluminum
- the external connecting portion 8 is made of a copper-plated steel wire (hereinafter referred to as a CP wire).
- An anodic oxide film made of aluminum oxide is formed on at least the surface of the round bar portion 6 of the lead wires 4 and 5 by a chemical conversion treatment with an aqueous solution of ammonium phosphate.
- the lead wires 4 and 5 are electrically connected to the bipolar electrode foils 2 and 3 at the connecting portion 7 by means such as stitching and ultrasonic welding.
- the anode electrode foil 2 is obtained by chemically or purely coating 99.9% pure aluminum foil in an acidic solution. After electrochemically etching and enlarging the surface, a chemical conversion treatment is performed in an aqueous solution of ammonium adipate, and an anodic oxide film layer is formed on the surface.
- the capacitor element 1 impregnated with the electrolytic solution is housed in an outer case 10 made of aluminum having a bottomed cylindrical shape, and a sealing body 9 is attached to the opening of the outer case 10 and the outer case 10
- the outer casing 10 is sealed by drawing at the end of the casing.
- the sealing body 9 is made of an elastic rubber such as butyl rubber, for example, and has through holes for leading out the lead wires 4 and 5, respectively.
- a ceramic coating layer is formed on the surface of the round bar portion 6 of the aluminum conductor used for the cathode extraction means.
- the ceramic coating layer is discharging a coating agent consisting of A 1 2 0 3 and S i 0 2 metal alkoxide ceramics round bar portion 6, and heat-treated for 1 0 seconds 1 8 0 ° C, then again the coating After the agent is discharged, heat treatment is again performed at 180 ° C. for 10 seconds, and further heat treatment is performed at 180 ° C. for 20 minutes.
- electrolyte solution A is obtained by dissolving aluminum ethyl tetrafluoride salt (25 parts) as a solvent, using abutyrolactone (75 parts) as a solvent and solute as a solute.
- electrolytic solution B a solution prepared by dissolving 1-ethyl-2,3-dimethylimidazolidinum aluminum tetrafluoride (20 parts) as a solute using as a solvent a solution of carboxylactone (80 parts) was used.
- a solution prepared by dissolving a solution of 11-ethyl-2-, 3-dimethyldimethylimidazolinium hydrogen phthalate as a solute was used as a solvent, using electrolytic solution C and acetylbutyrolactone (75 parts) as a solvent.
- the rated voltage of the electrolytic capacitor configured as described above is 16 V for those using the electrolytes A and C, and 100 V for the one using the electrolyte B.
- the characteristics of these electrolytic capacitors were evaluated.
- the test conditions were 125, no load for 2000 hours, and no load for 2005 and 2000 hours.
- the results are shown in (Table 1-1) to (Table 1-4). (Table 1-1)
- the electrolytic capacitor of the example has a lower ta ⁇ ⁇ and a smaller change of ta ⁇ (5 Is good,
- the structure of the electrolytic capacitor is the same as that of the first electrolytic capacitor, and the electrolytic solution used and the characteristics evaluated are the same. In the present invention, however, the round bar portion of the aluminum conductor used for the cathode lead-out means is used.
- an insulating synthetic resin layer is formed on the surface of 6, an insulating synthetic resin layer is formed. This insulating synthetic resin layer is obtained by mixing 97 parts by weight of epoxy resin with 3 parts by weight of ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane, and coating the round bar with a discharge method. And dried to form. The results are shown in (Table 2-1) to (Table 2_4). (Table 2-1) Initial characteristics 125 ° C-2000 hours load Sickle Electrolyte Coating layer
- Example 3 A Yes 402 0.028 -12.1 0.042 0/25 Comparative Example 2 C ⁇ 406 0.048 -10.2 0.141 6/25 1 ⁇
- the electrolytic capacitor of the example has a lower ta ⁇ ⁇ , a smaller change of ta ⁇ ⁇ at 125 ° C and a higher temperature than the comparative example. It has good life characteristics and prevents liquid leakage. Furthermore, as is clear from (Table 2-3) and (Table 2-4), the initial characteristics and the life characteristics at the rated voltage of 100 V are good, and the 100 V has a low impedance characteristic that has never been achieved before. A V-class electrolytic capacitor has been realized.
- the third electrolytic capacitor of the present invention will be described with reference to examples.
- a butyl rubber polymer made of a copolymer of isoprene, isoprene, and divinylbenzene is used as a sealing agent as a crosslinking agent.
- a partially crosslinked peroxide rubber with an oxide added As a comparative example, butyl rubber obtained by quinoid vulcanization of a butyl rubber polymer made of a copolymer of isoptylene and isoprene was used.
- the electrolyte is the same as in the case of the first electrolytic capacitor.
- the rated voltage of the electrolytic capacitor configured as described above is 16 V for the one using the electrolyte AC and 100 V for the one using the electrolyte ⁇ .
- the characteristics of these electrolytic capacitors were evaluated.
- the test conditions were a load of 125 ° C for 100 hours, a load of 105 t :, and no load for 100 hours.
- the results are shown in (Table 3-1) to (Table 3-4). (Table 3-1)
- the electrolytic capacitor of the example has a lower ta ⁇ (5, and a change of ta ⁇ (5 at 125 ° C) which is lower than that of the comparative example. It is small, has good high-temperature life characteristics, prevents liquid leakage, and, as is clear from (Table 3-3) and (Table 3-4), initial characteristics and life at a rated voltage of 100 V. It has excellent characteristics and realizes a 100 V class electrolytic capacitor with unprecedented low impedance characteristics.
- the structure of the electrolytic capacitor according to the seventh embodiment is such that the capacitor element 1 is formed by winding an anode electrode foil and a cathode electrode foil via a separator.
- An anode lead terminal 18 and a cathode lead terminal 19 are connected to the anode electrode foil and the cathode electrode foil, respectively.
- the anode electrode foil is made by chemically or electrochemically etching an aluminum foil with a purity of 99.9% in an acidic solution, expanding the surface, and then performing a chemical conversion treatment in an aqueous solution of ammonium adipate.
- One having an anodic oxide film layer formed thereon is used.
- an aluminum foil having a purity of 99.9% is etched and subjected to a chemical conversion treatment at 1 V in the same manner as the anode electrode foil.
- the anode lead terminal 18 and the cathode lead terminal 19 use a 99% aluminum foil.
- the capacitor element 1 configured as described above is impregnated with an electrolytic solution for driving an electrolytic capacitor.
- rivets made of 99% aluminum, including round bar part 16 and head part 17 14 and 15 are formed.
- a ceramic coating layer is formed on the surface of the round bar portion 16 of the rivet 15 on the cathode side.
- the rivets 14 and 15 are buried near the center of the sealing member 13 formed by laminating a hard insulating plate such as a phenol resin laminated plate and an elastic member such as a rubber plate. Then, an external terminal 20 is provided on the head 17 and the ends of the rivets 14 and 15 are caulked to fix the external terminal 20.
- Example 8 a ceramic coating layer was formed on the surface of the cathode lead terminal 19 instead of the round bar portion 16 of the rivet 15.
- the electrolyte and the ceramic coating layer are the same as in the first electrolytic capacitor.
- the capacitor element 1 After connecting the electrode lead terminals of the capacitor element 1 to the lower ends of the rivets 14 and 15, the capacitor element 1 is housed in a bottomed cylindrical outer case 10 made of aluminum.
- the sealing member 13 is inserted into the opening end of the outer case 10, and the end of the outer case 10 is drawn and curled to seal the electrolytic capacitor.
- the electrolytic capacitor configured as described above was compared with an electrolytic capacitor in which a ceramic coating layer was not formed on the rivet as Comparative Example 5.
- the conditions were as follows: a load of 16 V was applied at 105 ° C. for 2000 hours, and then the presence or absence of leakage of the electrolyte was determined. The results are shown in (Table 4-1). Further, the sample was allowed to stand at 105 ° C. for 2000 hours, and similarly, the presence or absence of leakage of the electrolyte was determined. The results are shown in (Table 4-2) (Table 4-1)
- an insulating synthetic resin layer is formed on the surface of the round bar portion 16 of the rivet 15 on the cathode side as Example 9 To achieve.
- an insulating synthetic resin layer was formed on the surface of the cathode lead terminal 19 instead of the round bar portion 16 of the rivet 15.
- an electrolytic capacitor configured in the same manner as in Examples 9 and 10 except that the insulating synthetic resin layer was not formed on the rivet was compared.
- the electrolytic solution and the insulating synthetic resin layer are the same as in the second electrolytic capacitor, and the characteristics are evaluated in the same manner as in the fourth electrolytic capacitor. The results are shown in (Table 5-1) and (Table 5-2).
- Example 10 A Cathode extraction terminal 0/25
- a ceramic coating layer is formed on a portion of the rivet which is in contact with the sealing member, and an electrolytic solution containing an aluminum tetrafluoride salt is formed. Since it is used, it is possible to provide an electrolytic capacitor having low impedance characteristics, high withstand voltage characteristics, and excellent liquid leakage characteristics and high-temperature life characteristics.
- a peroxide partially cross-linked butyl rubber obtained by adding a peroxide as a cross-linking agent to a butyl rubber polymer composed of a copolymer of isobutylene, isoprene and divinylbenzene is used as a sealing body. Since an electrolytic solution containing aluminum tetrafluoride is used, it is possible to provide an electrolytic capacitor having low impedance characteristics, high withstand voltage characteristics, good high-temperature life characteristics, and good liquid leakage characteristics. it can.
- an insulating synthetic resin layer is formed at a portion of the rivet which comes into contact with the sealing member, and the aluminum tetrafluoride salt is formed. Since an electrolytic solution containing the same is used, an electrolytic capacitor having low impedance characteristics, high withstand voltage characteristics, and excellent liquid leakage characteristics and high-temperature life characteristics can be provided.
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- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03810663.9A EP1580773B1 (en) | 2002-11-08 | 2003-11-07 | Electrolytic capacitor |
US10/534,235 US7256983B2 (en) | 2002-11-08 | 2003-11-07 | Electrolytic capacitor |
US11/775,364 US20080030926A1 (en) | 2002-11-08 | 2007-07-10 | Electrolytic capacitor |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
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JP2002-326019 | 2002-11-08 | ||
JP2002326011A JP2004165207A (ja) | 2002-11-08 | 2002-11-08 | 電解コンデンサ |
JP2002-326010 | 2002-11-08 | ||
JP2002326019A JP2004165209A (ja) | 2002-11-08 | 2002-11-08 | 電解コンデンサ |
JP2002326010A JP2004165206A (ja) | 2002-11-08 | 2002-11-08 | 電解コンデンサ |
JP2002-326028 | 2002-11-08 | ||
JP2002-326011 | 2002-11-08 | ||
JP2002326028A JP2004165213A (ja) | 2002-11-08 | 2002-11-08 | 電解コンデンサ |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/775,364 Division US20080030926A1 (en) | 2002-11-08 | 2007-07-10 | Electrolytic capacitor |
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WO2004042757A1 true WO2004042757A1 (ja) | 2004-05-21 |
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PCT/JP2003/014216 WO2004042757A1 (ja) | 2002-11-08 | 2003-11-07 | 電解コンデンサ |
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US (2) | US7256983B2 (ja) |
EP (1) | EP1580773B1 (ja) |
KR (1) | KR20050088284A (ja) |
TW (1) | TWI316260B (ja) |
WO (1) | WO2004042757A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7998360B2 (en) * | 2005-09-30 | 2011-08-16 | Mitsubishi Chemical Corporation | Electrolysis solution for electrolytic capacitor, and electrolytic capacitor |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1580773B1 (en) * | 2002-11-08 | 2014-04-09 | Nippon Chemi-Con Corporation | Electrolytic capacitor |
KR101302728B1 (ko) * | 2005-09-30 | 2013-09-03 | 니폰 케미콘 가부시키가이샤 | 전해 콘덴서 |
KR100767544B1 (ko) * | 2006-01-03 | 2007-10-17 | 엘에스전선 주식회사 | 부식 방지를 위한 리드선 및 이를 이용한 전기 이중층캐패시터 |
JP2008130859A (ja) * | 2006-11-22 | 2008-06-05 | Saga Sanyo Industries Co Ltd | 電解コンデンサ |
JP4914769B2 (ja) * | 2007-05-31 | 2012-04-11 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 固体電解コンデンサ電極用導体ペーストおよび該導体ペーストを使用した固体電解コンデンサの電極の製造方法 |
CN101604579B (zh) * | 2008-06-13 | 2012-02-29 | 万裕三信电子(东莞)有限公司 | 引线式铝电解电容器 |
US8784147B2 (en) | 2009-06-09 | 2014-07-22 | Tyco Electronics Corporation | Composite assembly for an electrical connector and method of manufacturing the composite assembly |
US8216006B2 (en) | 2009-06-09 | 2012-07-10 | Tyco Electronics Corporation | Composite assembly for an electrical connector and method of manufacturing the composite assembly |
US8790144B2 (en) | 2010-06-07 | 2014-07-29 | Tyco Electronics Corporation | Contact assembly for an electrical connector and method of manufacturing the contact assembly |
CN103119672A (zh) * | 2010-09-22 | 2013-05-22 | 松下电器产业株式会社 | 密封部件及使用了该密封部件的电容器 |
KR102149799B1 (ko) * | 2014-09-23 | 2020-08-31 | 삼성전기주식회사 | 탄탈륨 커패시터 |
DE102016105696A1 (de) * | 2016-03-29 | 2017-10-19 | Epcos Ag | Elektrolytkondensator |
CN110462771B (zh) * | 2017-03-31 | 2022-08-09 | 日本贵弥功株式会社 | 电极箔及其制造方法以及卷绕式电容器及其制造方法 |
WO2021049015A1 (ja) * | 2019-09-13 | 2021-03-18 | サン電子工業株式会社 | コンデンサ |
JP7465575B2 (ja) * | 2020-02-28 | 2024-04-11 | サン電子工業株式会社 | コンデンサ |
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JPH11135365A (ja) * | 1997-08-28 | 1999-05-21 | Nippon Chemicon Corp | 電解コンデンサ |
JP2001326143A (ja) * | 2001-03-30 | 2001-11-22 | Nippon Chemicon Corp | 電解コンデンサ |
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USRE31743E (en) * | 1980-09-15 | 1984-11-20 | Sprague Electric Company | AC Etching of aluminum capacitor foil |
JP2663544B2 (ja) * | 1988-08-24 | 1997-10-15 | 松下電器産業株式会社 | アルミニウム電解コンデンサ用電極箔の製造方法 |
JPH02249220A (ja) * | 1989-03-22 | 1990-10-05 | Matsushita Electric Ind Co Ltd | 密封電気化学素子 |
TW278192B (ja) * | 1993-12-03 | 1996-06-11 | Sanyo Chemical Ind Ltd | |
JPH1167600A (ja) | 1997-08-25 | 1999-03-09 | Nippon Chemicon Corp | 電解コンデンサ |
JPH11265839A (ja) * | 1998-03-17 | 1999-09-28 | Matsushita Electric Ind Co Ltd | アルミニウム電解コンデンサ |
JP2000150324A (ja) * | 1998-11-10 | 2000-05-30 | Honda Motor Co Ltd | 封口板 |
JP3403103B2 (ja) * | 1998-12-21 | 2003-05-06 | 三洋電機株式会社 | 固体電解コンデンサ |
JP2001102265A (ja) | 1999-09-30 | 2001-04-13 | Nippon Chemicon Corp | アルミニウム電解コンデンサ |
EP1394824A4 (en) * | 2001-05-11 | 2008-01-23 | Mitsubishi Chem Corp | ELECTROLYTIC SOLUTION FOR AN ELECTROLYTE CONDENSER AND ELECTROLYTE CONDENSER THEREWITH |
US6459565B1 (en) * | 2001-06-11 | 2002-10-01 | Kemet Electronics Corporation | Surface mount aluminum capacitor having anode foil anodized in an aqueous phosphate solution |
EP1580773B1 (en) * | 2002-11-08 | 2014-04-09 | Nippon Chemi-Con Corporation | Electrolytic capacitor |
-
2003
- 2003-11-07 EP EP03810663.9A patent/EP1580773B1/en not_active Expired - Fee Related
- 2003-11-07 WO PCT/JP2003/014216 patent/WO2004042757A1/ja active Application Filing
- 2003-11-07 KR KR1020057007950A patent/KR20050088284A/ko not_active Application Discontinuation
- 2003-11-07 TW TW092131325A patent/TWI316260B/zh not_active IP Right Cessation
- 2003-11-07 US US10/534,235 patent/US7256983B2/en not_active Expired - Fee Related
-
2007
- 2007-07-10 US US11/775,364 patent/US20080030926A1/en not_active Abandoned
Patent Citations (2)
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JPH11135365A (ja) * | 1997-08-28 | 1999-05-21 | Nippon Chemicon Corp | 電解コンデンサ |
JP2001326143A (ja) * | 2001-03-30 | 2001-11-22 | Nippon Chemicon Corp | 電解コンデンサ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7998360B2 (en) * | 2005-09-30 | 2011-08-16 | Mitsubishi Chemical Corporation | Electrolysis solution for electrolytic capacitor, and electrolytic capacitor |
Also Published As
Publication number | Publication date |
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US7256983B2 (en) | 2007-08-14 |
KR20050088284A (ko) | 2005-09-05 |
US20080030926A1 (en) | 2008-02-07 |
EP1580773A4 (en) | 2006-01-18 |
EP1580773B1 (en) | 2014-04-09 |
TWI316260B (en) | 2009-10-21 |
US20060164791A1 (en) | 2006-07-27 |
EP1580773A1 (en) | 2005-09-28 |
TW200414247A (en) | 2004-08-01 |
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