GB1296474A - - Google Patents
Info
- Publication number
- GB1296474A GB1296474A GB1296474DA GB1296474A GB 1296474 A GB1296474 A GB 1296474A GB 1296474D A GB1296474D A GB 1296474DA GB 1296474 A GB1296474 A GB 1296474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- persulphate
- acetate
- pbo
- july
- 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.)
- Expired
Links
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 3
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 abstract 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 abstract 1
- 239000005695 Ammonium acetate Substances 0.000 abstract 1
- 230000001464 adherent effect Effects 0.000 abstract 1
- 229940043376 ammonium acetate Drugs 0.000 abstract 1
- 235000019257 ammonium acetate Nutrition 0.000 abstract 1
- -1 and additionally Chemical compound 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 230000001590 oxidative effect Effects 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
- H01G9/0029—Processes of manufacture
- H01G9/0036—Formation of the solid electrolyte layer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/02—Oxides
- C01G21/08—Lead dioxide [PbO2]
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
1296474 Lead dioxide WESTERN ELECTRIC CO Inc 21 July 1970 [23 July 1969 27 Jan 1970] 35190/70 Heading C1A [Also in Division H1] An adherent layer of PbO 2 is formed on a surface by contact, in the presence of Ag ions, with a solution comprising Pb<SP>11</SP>, and a persulphate for oxidizing the Pb<SP>11</SP> to PbO 2 , the pH being in the range 5À0-6À9. The solution preferably contains Pb acetate, and additionally, ammonium acetate. Na, K, or NH 4 persulphate is preferably used. Preferred concentrations for the solution are: amm. acetate 1-8 M, Pb acetate 0À1-1À0 M, persulphate 1-2 M, -and Ag 5À10<SP>-5</SP>-5À10<SP>-4</SP>. An additional PbO 2 deposit may be produced by further treatment with a solution of a Pb<SP>11</SP> compound and a persulphate at pH 10-12, or with the initial solution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84392069A | 1969-07-23 | 1969-07-23 | |
| US616670A | 1970-01-27 | 1970-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1296474A true GB1296474A (en) | 1972-11-15 |
Family
ID=26675268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1296474D Expired GB1296474A (en) | 1969-07-23 | 1970-07-21 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4929374B1 (en) |
| BE (1) | BE753488A (en) |
| DE (1) | DE2036101B2 (en) |
| FR (1) | FR2054645B1 (en) |
| GB (1) | GB1296474A (en) |
| NL (1) | NL142267B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246808B1 (en) * | 1986-05-16 | 1993-01-20 | Showa Denko Kabushiki Kaisha | Solid electrolytic capacitor |
| DE3787119T2 (en) * | 1986-05-20 | 1993-12-23 | Nippon Chemicon | Coil type electrolytic capacitor. |
| JP2586381B2 (en) * | 1993-07-05 | 1997-02-26 | 日本電気株式会社 | Solid electrolytic capacitor and method of manufacturing the same |
| JP4488303B2 (en) * | 2003-09-26 | 2010-06-23 | 昭和電工株式会社 | Capacitor manufacturing method |
-
1970
- 1970-06-30 NL NL7009644A patent/NL142267B/en unknown
- 1970-07-15 BE BE753488D patent/BE753488A/en unknown
- 1970-07-21 GB GB1296474D patent/GB1296474A/en not_active Expired
- 1970-07-21 DE DE19702036101 patent/DE2036101B2/en active Granted
- 1970-07-22 FR FR7027030A patent/FR2054645B1/fr not_active Expired
- 1970-07-23 JP JP45064026A patent/JPS4929374B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2036101B2 (en) | 1973-03-22 |
| FR2054645B1 (en) | 1973-05-25 |
| DE2036101A1 (en) | 1971-02-04 |
| NL7009644A (en) | 1971-01-26 |
| BE753488A (en) | 1970-12-16 |
| FR2054645A1 (en) | 1971-04-23 |
| NL142267B (en) | 1974-05-15 |
| JPS4929374B1 (en) | 1974-08-03 |
| DE2036101C3 (en) | 1973-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |