Electrode structure, capacitor and method for producing electrode structure
A structure and electrode technology, applied in the manufacture of electrolytic capacitors, capacitor electrodes, electrolytic capacitors, etc., to achieve the effect of excellent adhesion and high electrostatic capacity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1～5、 comparative example 1～2
[0065] An aluminum rigid foil (JIS A1070-H18) with a thickness of 30 μm was immersed in a titanium alkoxide solution to form a dielectric precursor material with a thickness of 0.15 μm on both sides.
[0066] Then, the aluminum material on which the dielectric precursor material was formed was heated for 12 hours under the conditions of the atmosphere and temperature shown in Table 1 to obtain an electrode structure.
[0067] The composition of titanium alkoxide solution is, Ti(n-OC 4 h 9 ) 4 : 0.15 mol; CH 3 COCH 2 COCH 3 : 0.45 mol; C 2 h 5 OH: 18 moles; H 2 O: 0.3 mol. In an environment with a humidity of 40% or less, the above-mentioned aluminum material was immersed in the above-mentioned titanium alkoxide solution for 3 seconds, and then heated at 100° C. for 10 minutes in air to make it dry. The above-mentioned dipping treatment and heating treatment were repeated three times to form a dielectric precursor material.
[0068] In the electrode structure obtained...
Embodiment 6～8、 comparative example 3～4
[0070] An aluminum rigid foil (JIS A1030-H18) having a thickness of 50 μm was dipped in a titanium oxide dispersion solution to form a dielectric precursor having a thickness shown in Table 2 on both sides.
[0071] Then, the aluminum material on which the dielectric precursor material was formed on the surface was placed in a methane gas atmosphere in Examples 6 to 8, in air in Comparative Example 3, and in an argon atmosphere in Comparative Example 4. , were heated at a temperature of 550° C. for 12 hours to obtain electrode structures.
[0072] The titanium oxide dispersed aqueous solution is prepared by heating titanium hydroxide obtained by hydrolyzing titanium sulfate in an oxygen atmosphere to obtain titanium sulfide, and adding a small amount of nitric acid therein. In addition, it was confirmed by X-ray diffraction that this titanium oxide had an anatase crystal structure. In an environment with a humidity of 40% or less, the above-mentioned aluminum material was imm...
Embodiment 9～13
[0074] An aluminum hard foil with a thickness of 80 μm is immersed in an alkoxide solution or a sol solution containing titanium, tantalum, hafnium, zirconium or niobium, and a dielectric precursor material with a thickness of 0.4 μm is formed on both sides.
[0075] Then, the aluminum material on which the dielectric precursor material was formed was heated at a temperature of 550° C. for 12 hours in an acetylene gas atmosphere to obtain an electrode structure.
[0076] The nominal purity of the aluminum foil is 99.9% by mass, and the mass analysis values of the composition are: silicon 75ppm, iron 72ppm.
[0077] The composition of the tantalum alkoxide solution used in embodiment 9 is, Ta(OC 2 h 5 ) 5 : 0.15 mol; CH 3 COCH 2 COCH 3 : 0.45 mol; C 2 h 5 OH: 18 moles; H 2 O: 0.3 mol.
[0078] The composition of the titanium alkoxide solution used in Example 10 is the same as the solution used in Examples 1 to 5, being Ti(n-OC 4 h 9 ) 4 : 0.15 mol; CH 3 COCH 2 C...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| current density | aaaaa | aaaaa |
| current density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More