GB2005918A - Electrolyte system for electrolytic capacitors - Google Patents
Electrolyte system for electrolytic capacitorsInfo
- Publication number
- GB2005918A GB2005918A GB7839868A GB7839868A GB2005918A GB 2005918 A GB2005918 A GB 2005918A GB 7839868 A GB7839868 A GB 7839868A GB 7839868 A GB7839868 A GB 7839868A GB 2005918 A GB2005918 A GB 2005918A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene glycol
- ammonium
- acid
- mole
- amine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title abstract 3
- 239000003792 electrolyte Substances 0.000 title abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 abstract 3
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 abstract 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 150000001412 amines Chemical class 0.000 abstract 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- OTRAYOBSWCVTIN-UHFFFAOYSA-N OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N Chemical compound OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N OTRAYOBSWCVTIN-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- -1 amine salt Chemical class 0.000 abstract 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 abstract 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 abstract 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 abstract 1
- 150000001991 dicarboxylic acids Chemical class 0.000 abstract 1
- 239000001530 fumaric acid Substances 0.000 abstract 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 abstract 1
- 239000011976 maleic acid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000019837 monoammonium phosphate Nutrition 0.000 abstract 1
- 239000011255 nonaqueous electrolyte Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A non-aqueous electrolyte for aluminium-anode capacitors comprises ethylene glycol and a salt such as the ammonium or amine salt of an unsaturated aliphatic dicarboxylic acid (for example, fumaric acid or maleic acid), the amine (such as triethylamine) containing up to 12 carbon atoms, with or without a small amount of an additive such as boric acid, phosphoric acid, ammonium dihydrogen phosphate, ammonium pentaborate, ammonium phosphate and mixtures thereof. The electrolyte offers high electrical conductivity, and increased stability and shelf life, under conditions of no voltage, for low voltage capacitors having high capacitance ratings. In one embodiment, the combination of ethylene glycol, as the solvent, with between about 0.001 to 0.1 mole of unsaturated dicarboxylic acid per mole of ethylene glycol and about 0.001 to 0.2 mole of the amine per mole of ethylene glycol is used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84118177A | 1977-10-11 | 1977-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2005918A true GB2005918A (en) | 1979-04-25 |
| GB2005918B GB2005918B (en) | 1982-03-10 |
Family
ID=25284238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7839868A Expired GB2005918B (en) | 1977-10-11 | 1978-10-09 | Electrolyte system for electrolytic capacitors |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1119395A (en) |
| DE (1) | DE2844069A1 (en) |
| FR (1) | FR2406299A1 (en) |
| GB (1) | GB2005918B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165995A (en) * | 1984-10-19 | 1986-04-23 | Sprague Electric Co | Aluminium electrolytic capacitor |
| US4823236A (en) * | 1988-05-23 | 1989-04-18 | Sprague Electric Company | High temperature aluminum electrolytic capacitor |
| WO1996019815A1 (en) * | 1994-12-21 | 1996-06-27 | Boundary Technologies, Inc. | Electrolyte for electrolytic capacitor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373176A (en) * | 1981-09-30 | 1983-02-08 | Sprague Electric Company | Electrolytic capacitor for at least 200 V service |
| US4747021A (en) * | 1986-08-15 | 1988-05-24 | Asahi Glass Company Ltd. | Electrolytic capacitor |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1420433A (en) * | 1964-10-05 | 1965-12-10 | Safco Condensateurs | electrolytic capacitor electrolyte |
| DE1282187B (en) * | 1964-12-21 | 1968-11-07 | Condensateurs Sic Safco Fa | Electrolyte for electrolytic capacitors |
| SE306789B (en) * | 1966-01-27 | 1968-12-09 | Ericsson Telefon Ab L M | |
| US3509425A (en) * | 1968-01-10 | 1970-04-28 | Gen Electric | Electrolytic capacitor and electrolyte material therefor |
| US3518499A (en) * | 1968-01-29 | 1970-06-30 | Mallory & Co Inc P R | Electrolyte for electrolytic capacitors |
| DE1764869C3 (en) * | 1968-08-22 | 1974-06-06 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Electrolyte for electrolytic capacitors |
| DE1805383C3 (en) * | 1968-10-26 | 1981-09-03 | Les Condensateurs Sic-Safco, Colombes, Hauts-de-Seine | Electrolyte for electrolytic capacitors with aluminum anodes |
| DE2049098C3 (en) * | 1970-10-06 | 1986-10-02 | Roederstein & Türk KG Fabrik elektrischer Bauelemente, 7815 Kirchzarten | Electrolyte for electrolytic capacitors |
| DE2209095C3 (en) * | 1971-02-25 | 1978-03-09 | Sanyo Electric Co., Ltd., Moriguchi, Osaka (Japan) | Electrolyte for electrolytic capacitors |
| JPS5199258A (en) * | 1975-02-27 | 1976-09-01 | Sanyo Electric Co | |
| DE2458452C3 (en) * | 1974-12-10 | 1978-04-20 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Aluminum electrolytic capacitor |
| US4117531A (en) * | 1977-05-25 | 1978-09-26 | Sprague Electric Company | Electrolytic capacitor |
-
1978
- 1978-10-09 GB GB7839868A patent/GB2005918B/en not_active Expired
- 1978-10-10 DE DE19782844069 patent/DE2844069A1/en not_active Withdrawn
- 1978-10-10 CA CA000312922A patent/CA1119395A/en not_active Expired
- 1978-10-11 FR FR7829023A patent/FR2406299A1/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165995A (en) * | 1984-10-19 | 1986-04-23 | Sprague Electric Co | Aluminium electrolytic capacitor |
| US4823236A (en) * | 1988-05-23 | 1989-04-18 | Sprague Electric Company | High temperature aluminum electrolytic capacitor |
| WO1996019815A1 (en) * | 1994-12-21 | 1996-06-27 | Boundary Technologies, Inc. | Electrolyte for electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2005918B (en) | 1982-03-10 |
| CA1119395A (en) | 1982-03-09 |
| FR2406299B1 (en) | 1984-02-10 |
| DE2844069A1 (en) | 1979-04-19 |
| FR2406299A1 (en) | 1979-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |