Method for manufacturing positive electrode aluminum foil of electrolytic capacitor
A technology of electrolytic capacitors and anode aluminum foil, applied in the direction of electrolytic capacitors, capacitor manufacturing, capacitors, etc., can solve the problems of unstable product quality, weakened dissolution, etc., and achieve the effect of high specific volume and good bending
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0016] Example one
[0017] The high-pressure corrosion foil with a purity of 99.99% is used, treated in pure water above 98°C for 12 minutes, and then in an aqueous solution of 0.04wt% fumaric acid at 75°C for 2.5 minutes. After cleaning with pure water, the treatment time is 0.5 First-stage formation in wt%, 75℃ phosphate, current density 20mA.cm -2 After reaching the predetermined voltage of 200V, it will be kept constant for 8 minutes; then in a mixed solution of 5wt% boric acid, 0.3wt% ammonium borate (or sodium) aqueous solution, 0.5wt% citric acid at 85℃, the current density is 20mA .cm -2 When the voltage reaches 400V, the voltage is constant for 10 minutes; then the third-stage formation is performed in a mixed solution of 5wt% boric acid, 0.15wt% ammonium borate (or sodium) aqueous solution, and 0.1wt% citric acid at 85℃, and the voltage reaches 520V. Press for 15 minutes; then in a mixed solution of 5wt% boric acid, 0.08wt% ammonium borate (or sodium) aqueous solution, ...
Example Embodiment
[0019] Example two
[0020] A high-pressure corrosion foil with a purity of 99.99% was used and treated in pure water above 98°C for 10 minutes, followed by an aqueous solution of maleic acid 0.03% by weight and 75°C for 4 minutes. After cleaning with pure water, the treatment time was 1% by weight. %, 85℃ in phosphate, the first-stage formation, the current density is 30mA.cm -2 After reaching the predetermined voltage of 180V, it is constant for 8 minutes; then the second-stage chemical conversion is carried out in a mixed solution of 3wt% boric acid, 1.0wt% ammonium borate (or sodium) aqueous solution, and 0.20wt% gluconic acid, with a current density of 20mA.cm -2 , Constant voltage for 8 minutes when the voltage reaches 350V; then in the mixed solution of 3wt% boric acid, 0.50wt% ammonium borate (or sodium) aqueous solution, 0.10wt% gluconic acid at 85℃, the third stage formation, the voltage reaches 480V constant Press for 12 minutes; then in a mixed solution of 3wt% boric a...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap