CN106356200B - A kind of caustic solution of whole tantalum capacitor outer casing inner wall - Google Patents
A kind of caustic solution of whole tantalum capacitor outer casing inner wall Download PDFInfo
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- CN106356200B CN106356200B CN201510407819.4A CN201510407819A CN106356200B CN 106356200 B CN106356200 B CN 106356200B CN 201510407819 A CN201510407819 A CN 201510407819A CN 106356200 B CN106356200 B CN 106356200B
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Abstract
The present invention provides a kind of caustic solutions of whole tantalum capacitor outer casing inner wall, include the following steps：NaOH solution is configured with NaOH and deionized water；Tantalum shell is cleaned up with deionized water, places into baking oven after drying and takes out natural cooling；NaOH aqueous solutions are added into the tantalum shell after Drying and cooling；Tantalum shell equipped with NaOH aqueous solutions is placed in baking oven to natural cooling after drying；Residue NaOH aqueous solutions in tantalum shell are removed；After the deionized water for the tantalum shell flowing for removing NaOH aqueous solutions is cleaned, with drying in oven.Tantalum outer casing inner wall of the present invention improves the roughness of its inner wall on the basis of not influencing tantalum outer cover quality, improve the specific surface area of its inner wall, the ruthenium-oxide come can will be decomposited well in the thermal decomposition process of ruthenium trichloride to be combined with tantalum outer casing inner wall, the adhesive force of ruthenium-oxide is improved, while improving the specific surface area and capacity of cathode.
Description
Technical field
The present invention relates to a kind of full tantalum shell inner wall corrosion technology more particularly to a kind of raising full tantalum shell inner wall oxide rutheniums
The corrosion technology of adhesive force.
Background technology
Ultracapacitor refers to using the carbon material with high-specific surface area or the metal that quick faraday's reaction can occur
A kind of electrochemical capacitor that oxide or conducting polymer make as electrode material, capacity higher than traditional capacitor three arrive
Four orders of magnitude；The core of ultracapacitor is electrode active material.Ruthenium oxide electrode material not only has high theory
Specific capacity (>1000F/g), and conductivity it is higher (>100S/cm)；In addition, ruthenium-oxide also has wide electrochemical window and excellent
The advantages such as cyclical stability, therefore be a kind of to be acknowledged as most outstanding electrode material for super capacitor.It is such as now big
The super tantalum capacitor used is measured, cathode material uses ruthenium-oxide, but the adhesion problem of ruthenium-oxide and tantalum perplexs always
The application range of such super tantalum capacitor, the adhesive force for improving ruthenium-oxide and tantalum shell is imperative.
Invention content
In order to solve the above technical problems, the present invention provides a kind of caustic solution of whole tantalum capacitor outer casing inner wall, this is complete
The caustic solution of tantalum capacitor outer casing inner wall passes through
The present invention is achieved by the following technical programs.
A kind of caustic solution of whole tantalum capacitor outer casing inner wall provided by the invention, includes the following steps：
1) NaOH solution of NaOH and deionized water configuration quality a concentration of 35~40% are used；
2) tantalum shell is cleaned up with deionized water, it is cold places into 100~125 DEG C of baking oven taking-up nature after drying
But；
3) the NaOH aqueous solutions of step 1) configuration are added into the tantalum shell after Drying and cooling；
4) the tantalum shell of the NaOH aqueous solutions equipped with step 1) configuration is placed in 80 ± 10 DEG C of baking oven, 20 ± 10 minutes
After take out, natural cooling；
5) residue NaOH aqueous solutions in tantalum shell are removed；
6) deionized water by the tantalum shell flowing after removal NaOH aqueous solutions is cleaned 3~5 times, cleans 10 ± 3 every time
Minute；
7) tantalum shell is impregnated 20 ± 5 minutes to ensure to clean up with absolute ethyl alcohol, has no NaOH residuals；
8) tantalum shell is placed in 80 ± 10 DEG C of drying in oven.
Drying time in the step 2) is 2 ± 0.5h.
The amount for the NaOH aqueous solutions being added in the step 3) in tantalum shell is 2 to four/3rds points of tantalum shell volume
Three.
The beneficial effects of the present invention are：The caustic solution of whole tantalum capacitor outer casing inner wall is not influencing tantalum outer cover quality
On the basis of substantially increase the roughness of inner wall, the specific surface area of inner wall is substantially increased, in the thermal decomposition process of ruthenium trichloride
The middle ruthenium-oxide that will can be decomposited well is combined with tantalum outer casing inner wall, is substantially increased the adhesive force of ruthenium-oxide, is carried simultaneously
The specific surface area and capacity of high cathode；Therefore the degree of roughness for increasing tantalum housing internal surface can not only increase cathode capacities,
The adhesive force of ruthenium-oxide and tantalum shell can also be greatly improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of whole tantalum capacitor outer casing inner wall before processing；
Fig. 2 is the structural schematic diagram of whole tantalum capacitor outer casing inner wall after processing.
Specific implementation mode
Be described further below technical scheme of the present invention, but claimed range be not limited to it is described.
A kind of caustic solution of whole tantalum capacitor outer casing inner wall, includes the following steps：
1) 20gNaOH is weighed, is put into 100ml beakers, it is dense with 30ml deionized water configuration qualities are measured in 50ml graduated cylinders
The NaOH solution that degree is 40%；
2) the tantalum shell of super tantalum capacitor is cleaned up with deionized water, and is put into 100~125 DEG C of baking oven and dries
After 2h, natural cooling is taken out；
3) the NaOH aqueous solutions of a certain amount of step 1) configuration, the NaOH of addition are added into the tantalum shell after Drying and cooling
The amount of aqueous solution is 3rd/2nd to four/3rds of tantalum shell volume；
4) the tantalum shell of the NaOH aqueous solutions equipped with step 1) configuration is placed in 80 DEG C of baking oven, is taken out after twenty minutes,
Natural cooling；
5) residue NaOH aqueous solutions in tantalum shell are removed；
6) deionized water that tantalum shell flows is cleaned 3~5 times, every time cleaning 10 minutes；
7) tantalum shell is impregnated 20 minutes to ensure to clean up with absolute ethyl alcohol, has no NaOH residuals；
8) tantalum shell is placed in 80 DEG C of drying in oven.
The caustic solution of the whole tantalum capacitor outer casing inner wall of the present invention carries significantly on the basis of not influencing tantalum outer cover quality
The high roughness of inner wall, substantially increases the specific surface area of inner wall, as depicted in figs. 1 and 2.In the thermal decomposition of ruthenium trichloride
Cheng Zhongneng will decomposite the ruthenium-oxide come and combined with tantalum outer casing inner wall well, substantially increase the adhesive force of ruthenium-oxide, simultaneously
Improve the specific surface area and capacity of cathode；Therefore cathode appearance can not only be increased by increasing the degree of roughness of tantalum housing internal surface
Amount, can also greatly improve the adhesive force of ruthenium-oxide and tantalum shell.
Claims (1)
1. a kind of caustic solution of whole tantalum capacitor outer casing inner wall, it is characterised in that：Include the following steps：
1) NaOH solution of NaOH and deionized water configuration quality a concentration of 35~40% are used；
2) tantalum shell is cleaned up with deionized water, places into 100~125 DEG C of baking oven after drying and takes out natural cooling,
Drying time is 2 ± 0.5h；
3) the NaOH aqueous solutions of step 1) configuration are added into the tantalum shell after Drying and cooling, the NaOH being added in tantalum shell is water-soluble
The amount of liquid is 3rd/2nd to four/3rds of tantalum shell volume；
4) the tantalum shell of the NaOH aqueous solutions equipped with step 1) configuration is placed in 80 ± 10 DEG C of baking oven, 20 ± take after ten minutes
Go out, natural cooling；
5) residue NaOH aqueous solutions in tantalum shell are removed；
6) deionized water by the tantalum shell flowing after removal NaOH aqueous solutions is cleaned 3~5 times, is cleaned 10 ± 3 minutes every time；
7) tantalum shell is impregnated 20 ± 5 minutes to ensure to clean up with absolute ethyl alcohol, has no NaOH residuals；
8) tantalum shell is placed in 80 ± 10 DEG C of drying in oven.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407819.4A CN106356200B (en) | 2015-07-13 | 2015-07-13 | A kind of caustic solution of whole tantalum capacitor outer casing inner wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510407819.4A CN106356200B (en) | 2015-07-13 | 2015-07-13 | A kind of caustic solution of whole tantalum capacitor outer casing inner wall |
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| CN106356200A CN106356200A (en) | 2017-01-25 |
| CN106356200B true CN106356200B (en) | 2018-08-24 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110957138B (en) * | 2019-11-18 | 2024-04-16 | 湖南华冉科技有限公司 | Inner wall treatment method of tantalum capacitor shell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197212A (en) * | 2007-12-27 | 2008-06-11 | 清华大学 | High-capacity super capacitor and method for producing the same |
| CN103325574A (en) * | 2013-07-05 | 2013-09-25 | 电子科技大学 | Method for manufacturing cathode of total-tantalum electrolytic capacitor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7480130B2 (en) * | 2006-03-09 | 2009-01-20 | Avx Corporation | Wet electrolytic capacitor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197212A (en) * | 2007-12-27 | 2008-06-11 | 清华大学 | High-capacity super capacitor and method for producing the same |
| CN103325574A (en) * | 2013-07-05 | 2013-09-25 | 电子科技大学 | Method for manufacturing cathode of total-tantalum electrolytic capacitor |
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| CN106356200A (en) | 2017-01-25 |
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