CN110676058A - Preparation process of solid-state aluminum electrolytic capacitor and solid-state aluminum electrolytic capacitor - Google Patents
Preparation process of solid-state aluminum electrolytic capacitor and solid-state aluminum electrolytic capacitor Download PDFInfo
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- CN110676058A CN110676058A CN201910730689.6A CN201910730689A CN110676058A CN 110676058 A CN110676058 A CN 110676058A CN 201910730689 A CN201910730689 A CN 201910730689A CN 110676058 A CN110676058 A CN 110676058A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/04—Drying; Impregnating
Abstract
The invention discloses a preparation process of a solid-state aluminum electrolytic capacitor and the solid-state aluminum electrolytic capacitor, belonging to the technical field of capacitors. The preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps: firstly, carrying out chemical conversion repair treatment on the core cladding; then, under the negative pressure condition, impregnating the core cladding subjected to the formation repair treatment into a conductive polymer dispersion liquid; then, inverting the core package impregnated with the conductive polymer dispersion liquid, drying, and electrifying the core package subjected to drying; and then, impregnating the core cladding after drying treatment with a post-treatment agent, and performing secondary drying treatment and assembly to obtain the solid aluminum electrolytic capacitor. According to the invention, the core package is electrified during the drying treatment of the core package impregnated with the conductive polymer dispersion liquid, which is equivalent to aging the core package while drying treatment, so that the subsequent aging treatment process can be omitted, thereby reducing energy consumption and improving production efficiency.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a preparation process of a solid-state aluminum electrolytic capacitor and the solid-state aluminum electrolytic capacitor.
Background
At present, the production process of the traditional solid aluminum electrolytic capacitor mainly comprises the procedures of nail coiling, welding, formation, drying, impregnation, polymerization or drying, assembly, aging, testing, forming and the like. Wherein, the solid aluminum electrolytic capacitor product with the working voltage below 25V mostly adopts the preparation process of impregnating monomer and adding oxidant for polymerization; high voltage solid aluminum electrolytic capacitor products with operating voltages of 25v or more are mostly prepared by a preparation process of an impregnated conductive polymer dispersion liquid.
For high-voltage solid aluminum electrolytic capacitor products, patent CN105826076A in the prior art discloses a preparation method of an impregnated conductive polymer dispersion, specifically, a core package dried after formation is immersed in the conductive polymer dispersion, and then the solid aluminum electrolytic capacitor can be obtained through the procedures of high-temperature drying treatment, sealing assembly, aging and the like. However, in the preparation method, after the impregnated core package is dried at a high temperature, the core package needs to be aged after being assembled, so that the preparation method has the problems of high energy consumption, low production efficiency and the like.
Disclosure of Invention
The invention aims to provide a preparation process of a solid-state aluminum electrolytic capacitor and the solid-state aluminum electrolytic capacitor, so as to solve the problems in the background technology.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a preparation process of a solid-state aluminum electrolytic capacitor comprises the following steps:
(1) stacking the positive foil, the electrolytic paper and the negative foil together, and winding into a core package;
(2) applying voltage on the positive electrode and the negative electrode of the core bag, and immersing the core bag into the formation solution to carry out formation repair treatment;
(3) under the negative pressure condition, impregnating the core cladding subjected to the formation repair treatment into a conductive polymer dispersion liquid;
(4) inverting the core package impregnated with the conductive polymer dispersion liquid, drying, and electrifying the core package subjected to drying;
(5) impregnating the core package subjected to drying treatment with a post-treatment agent, and then carrying out secondary drying treatment; the post-treatment agent comprises one or more of dimethyl sulfoxide, N-dimethylformamide, glycerol, sorbitol and isopropanol;
(6) and assembling the core cladding subjected to secondary drying treatment to obtain the solid aluminum electrolytic capacitor.
In a preferable embodiment of the present invention, in the step (2), the chemical solution is an ammonium adipate chemical solution or a boric acid chemical solution.
In another preferable embodiment adopted in the embodiment of the present invention, in the step (2), the voltage value applied to the positive electrode and the negative electrode of the core package is 0.8 to 1.2 times of the withstand voltage value of the positive electrode foil.
According to another preferable scheme adopted by the embodiment of the invention, in the step (2), the time of the formation repair treatment is 5-30 min.
In another preferable embodiment adopted in the embodiment of the present invention, in the step (3), the core package after the formation and repair treatment is impregnated with the conductive polymer dispersion under a negative pressure condition of a vacuum degree of 50 to 90 kPa.
In another preferable embodiment of the present invention, in the step (3), the time for impregnating the conductive polymer dispersion is 3 to 10 min.
In another preferred embodiment of the present invention, the conductive polymer dispersion is an aqueous dispersion of Poly (3,4-ethylenedioxythiophene) [ Poly (3,4-ethylenedioxythiophene), PEDOT ]/polystyrene sulfonate [ Poly (phenylenesulfonate), PSS ].
In another preferred embodiment of the present invention, in the step (4), the core package being dried is electrified by a dc power supply, the electrified voltage is 0.7-1.1 times of the withstand voltage of the positive electrode foil, and the electrified current is 1-8 mA.
In another preferred embodiment adopted in the embodiment of the present invention, in the step (4), the drying temperature is 120-.
According to another preferable scheme adopted by the embodiment of the invention, in the step (5), the temperature of the secondary drying is 80-200 ℃, and the time of the secondary drying is 60-150 min.
In another preferable embodiment adopted in the embodiment of the present invention, in the step (5), the number of times of impregnating the post-treatment agent is 1 to 5 times, and the time for impregnating the post-treatment agent each time is 1 to 10 min.
The embodiment of the invention also provides the solid-state aluminum electrolytic capacitor prepared by adopting the preparation process.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
(1) in the embodiment of the invention, the core package is electrified during the drying treatment of the core package impregnated with the conductive polymer dispersion liquid, which is equivalent to the core package being aged while being dried, so that the subsequent aging treatment process can be omitted, thereby reducing the energy consumption and improving the production efficiency.
(2) The embodiment of the invention also inverts the core bag first and then performs drying treatment, which is beneficial to the drying treatment of the core bag after the core bag is impregnated with the conductive polymer dispersion liquid, thereby improving the efficiency of the drying treatment and further reducing the energy consumption.
(3) The embodiment of the invention also can protect the conductive polymer film formed by the conductive polymer dispersion liquid in the core bag by impregnating the core bag with the post-treatment agent, so that the stability and the conductivity of the conductive polymer film are improved, and the electrical property and the service life of the solid aluminum electrolytic capacitor product can be improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a solid-state aluminum electrolytic capacitor and a preparation process thereof, and particularly the preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 5 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 0.8 times of the voltage withstanding value of the positive electrode foil; the chemical solution can be ammonium adipate system chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 50kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 10 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) After the core package impregnated with the conductive polymer dispersion liquid is inverted, enabling the anode lead and the cathode lead of the core package to face downwards vertically, then placing the core package in a drying oven at 120 ℃ for drying treatment for 150min, and electrifying the core package which is being dried by using a direct-current power supply during the drying treatment; the voltage applied was 0.7 times the withstand voltage of the positive foil, and the current applied was 1 mA.
(5) After the core package after drying treatment is impregnated with the post-treatment agent, placing the core package in an oven at 80 ℃ for secondary drying treatment for 150 min; wherein the post-treatment agent can be selected from commercial dimethyl sulfoxide; the number of impregnation with the post-treatment agent was 1, and the time for impregnation with the post-treatment agent was 10 min.
(6) And sealing and assembling the core cladding subjected to secondary drying treatment, and then testing and forming to obtain the solid aluminum electrolytic capacitor.
Example 2
The embodiment provides a solid-state aluminum electrolytic capacitor and a preparation process thereof, and particularly the preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 30 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 1.2 times of the voltage withstanding value of the positive electrode foil; the chemical solution can be boric acid chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 90kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 3 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) After the core package impregnated with the conductive polymer dispersion liquid is inverted, enabling the anode lead and the cathode lead of the core package to face downwards vertically, then placing the core package in a drying oven at 200 ℃ for drying treatment for 60min, and electrifying the core package which is being dried by using a direct-current power supply during the drying treatment; the voltage applied was 1.1 times the withstand voltage of the positive foil, and the current applied was 8 mA.
(5) After the core wrap after drying treatment is impregnated with the post-treatment agent, placing the core wrap in a drying oven at 200 ℃ for secondary drying treatment for 60 min; wherein, the post-treating agent can be N, N-dimethylformamide which is commercially available; the number of impregnation with the post-treatment agent was 5 times, and the time for impregnation with the post-treatment agent was 1min each time.
(6) And sealing and assembling the core cladding subjected to secondary drying treatment, and then testing and forming to obtain the solid aluminum electrolytic capacitor.
Example 3
The embodiment provides a solid-state aluminum electrolytic capacitor and a preparation process thereof, and particularly the preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 15 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 1 time of the voltage resistance value of the positive electrode foil; the chemical solution can be boric acid chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 70kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 8 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) After the core package impregnated with the conductive polymer dispersion liquid is inverted, enabling the anode lead and the cathode lead of the core package to face downwards vertically, then placing the core package in an oven at 180 ℃ for drying treatment for 120min, and electrifying the core package which is being dried by using a direct-current power supply during the drying treatment; the voltage applied was 1 time the withstand voltage of the positive foil, and the current applied was 5 mA.
(5) After the core package after drying treatment is impregnated with the post-treatment agent, placing the core package in a drying oven at 150 ℃ for secondary drying treatment for 90 min; wherein, the post-treatment agent can be selected from commercially available glycerol; the number of impregnation with the post-treatment agent was 3 times, and the time for impregnation with the post-treatment agent was 5min each time.
(6) And sealing and assembling the core cladding subjected to secondary drying treatment, and then testing and forming to obtain the solid aluminum electrolytic capacitor.
Example 4
The embodiment provides a solid-state aluminum electrolytic capacitor and a preparation process thereof, and particularly the preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 20 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 1 time of the voltage resistance value of the positive electrode foil; the chemical solution can be ammonium adipate system chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 80kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 5 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) After the core package impregnated with the conductive polymer dispersion liquid is inverted, enabling the anode lead and the cathode lead of the core package to face downwards vertically, then placing the core package in a drying oven at 150 ℃ for drying treatment for 100min, and electrifying the core package which is being dried by using a direct-current power supply during the drying treatment; the voltage applied was 1 time the withstand voltage of the positive foil, and the current applied was 5 mA.
(5) After the core wrap after drying treatment is impregnated with the post-treatment agent, placing the core wrap in an oven at 180 ℃ for secondary drying treatment for 120 min; wherein the post-treating agent can be a mixture of glycerol, sorbitol and isopropanol; the number of impregnation with the post-treatment agent was 2, and the time for impregnation with the post-treatment agent was 8min each time.
(6) And sealing and assembling the core cladding subjected to secondary drying treatment, and then testing and forming to obtain the solid aluminum electrolytic capacitor.
Example 5
The embodiment provides a solid-state aluminum electrolytic capacitor and a preparation process thereof, and particularly the preparation process of the solid-state aluminum electrolytic capacitor comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 15 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 1 time of the voltage resistance value of the positive electrode foil; the chemical solution can be ammonium adipate system chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 60kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 7 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) After the core package impregnated with the conductive polymer dispersion liquid is inverted, enabling the anode lead and the cathode lead of the core package to face downwards vertically, then placing the core package in an oven at 180 ℃ for drying treatment for 120min, and electrifying the core package which is being dried by using a direct-current power supply during the drying treatment; the voltage applied was 1 time the withstand voltage of the positive foil, and the current applied was 5 mA.
(5) After the core wrap after drying treatment is impregnated with the post-treatment agent, placing the core wrap in a drying oven at 180 ℃ for secondary drying treatment for 90 min; wherein the post-treating agent can be a mixture of dimethyl sulfoxide and isopropanol; the number of impregnation with the post-treatment agent was 4 times, and the time for impregnation with the post-treatment agent was 10min each time.
(6) And sealing and assembling the core cladding subjected to secondary drying treatment, and then testing and forming to obtain the solid aluminum electrolytic capacitor.
Comparative example 1
The comparative example provides a preparation process of a solid-state aluminum electrolytic capacitor, and specifically, the preparation process comprises the following steps:
(1) the method comprises the steps of cutting the positive electrode foil, the electrolytic paper and the negative electrode foil into specified widths (according to actual requirements), then laminating the electrolytic paper, the positive electrode foil and the negative electrode foil, and winding the laminated electrolytic paper, the positive electrode foil and the negative electrode foil together into a core package.
(2) Respectively and electrically connecting the anode lead and the cathode lead of the single core cladding with the anode and the cathode of a power supply, applying voltage to the anode and the cathode of the core cladding, immersing the core cladding into a formation solution, and performing formation repair treatment for 15 min; wherein, the voltage value applied to the positive electrode and the negative electrode of the core bag is 1 time of the voltage resistance value of the positive electrode foil; the chemical solution can be ammonium adipate system chemical solution in the prior art.
(3) Under the negative pressure condition that the vacuum degree is 60kPa, the core bag after the formation repair treatment is impregnated with the conductive polymer dispersion liquid for 7 min; wherein the conductive polymer dispersion liquid is a commercial PEDOT/PSS aqueous dispersion liquid.
(4) And drying the impregnated conductive polymer dispersion liquid in an oven at 180 ℃ for 120 min.
(5) Firstly sealing and assembling the dried core package, then placing the assembled core package in a drying oven at 120 ℃, applying direct current voltage which is 1 time of the withstand voltage value of the anode foil to the core package for aging treatment, and then testing and molding the core package after aging treatment to obtain the solid aluminum electrolytic capacitor.
10 sets of solid aluminum electrolytic capacitor products having a size of phi 6.3 x 10mm and a specification of 100 muF/35V were prepared according to the preparation processes provided in example 5 and comparative example 1, and the 20 sets were subjected to the measurement of Capacitance (CAP), loss Factor (DF), (Equivalent series resistance, ESR) values at a frequency of 120Hz, and the measurement of leakage current (LeakageCurrent, LC) at a voltage of 35V applied to the 20 sets of products, as shown in tables 1-2 (wherein Table 1 is the performance test result of the 10 sets of products prepared in example 5, and Table 2 is the performance test result of the 10 sets of products prepared in comparative example 1).
Table 1 results of performance testing of 10 groups of products obtained in example 5
| Serial number | CAP(uF/120Hz) | DF(％) | ESR(mΩ) | LC(uA) |
| 1 | 106.73 | 1.80 | 8.24 | 1.05 |
| 2 | 104.56 | 1.82 | 8.62 | 1.42 |
| 3 | 106.60 | 1.90 | 8.54 | 1.07 |
| 4 | 105.10 | 1.71 | 8.96 | 0.88 |
| 5 | 106.74 | 1.80 | 8.66 | 1.90 |
| 6 | 105.69 | 1.78 | 9.26 | 3.21 |
| 7 | 105.46 | 1.74 | 8.99 | 1.61 |
| 8 | 105.41 | 1.71 | 9.15 | 1.41 |
| 9 | 104.13 | 1.80 | 8.39 | 1.81 |
| 10 | 104.89 | 1.84 | 8.75 | 3.72 |
Table 2 results of performance test of 10 groups of products prepared in comparative example 1
| Serial number | CAP(uF/120Hz) | DF(％) | ESR(mΩ) | LC(uA) |
| 1 | 104.72 | 2.78 | 9.86 | 3.48 |
| 2 | 105.04 | 2.70 | 9.81 | 2.63 |
| 3 | 104.30 | 2.75 | 9.58 | 2.48 |
| 4 | 104.45 | 2.76 | 10.24 | 2.43 |
| 5 | 103.72 | 2.83 | 10.52 | 2.06 |
| 6 | 104.22 | 2.82 | 11.34 | 2.01 |
| 7 | 103.68 | 2.85 | 10.93 | 2.00 |
| 8 | 103.99 | 2.77 | 10.62 | 1.84 |
| 9 | 104.07 | 2.76 | 10.60 | 1.77 |
| 10 | 104.96 | 2.76 | 9.93 | 1.77 |
As can be seen from tables 1 to 2 above, the solid aluminum electrolytic capacitor product prepared in example 5 of the present invention has a smaller DF and ESR and better product characteristics than the solid aluminum electrolytic capacitor product prepared in comparative example 1.
In summary, in the embodiments of the present invention, the core package is electrified during the drying process of the core package impregnated with the conductive polymer dispersion liquid, which is equivalent to aging the core package while drying, so that the subsequent aging process can be omitted, thereby reducing energy consumption and improving production efficiency. The embodiment of the invention also inverts the core bag first and then performs drying treatment, which is beneficial to the drying treatment of the core bag after the core bag is impregnated with the conductive polymer dispersion liquid, thereby improving the efficiency of the drying treatment and further reducing the energy consumption.
In addition, the core package is impregnated with the post-treatment agent, so that the conductive polymer film formed by the conductive polymer dispersion liquid in the core package can be protected, the stability and the conductivity of the conductive polymer film are improved, and the electrical property and the service life of the solid aluminum electrolytic capacitor product can be improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A preparation process of a solid-state aluminum electrolytic capacitor is characterized by comprising the following steps:
(1) stacking the positive foil, the electrolytic paper and the negative foil together, and winding into a core package;
(2) applying voltage on the positive electrode and the negative electrode of the core bag, and immersing the core bag into the formation solution to carry out formation repair treatment;
(3) under the negative pressure condition, impregnating the core cladding subjected to the formation repair treatment into a conductive polymer dispersion liquid;
(4) inverting the core package impregnated with the conductive polymer dispersion liquid, drying, and electrifying the core package subjected to drying;
(5) impregnating the core package subjected to drying treatment with a post-treatment agent, and then carrying out secondary drying treatment; the post-treatment agent comprises one or more of dimethyl sulfoxide, N-dimethylformamide, glycerol, sorbitol and isopropanol;
(6) and assembling the core cladding subjected to secondary drying treatment to obtain the solid aluminum electrolytic capacitor.
2. The process for preparing a solid-state aluminum electrolytic capacitor as claimed in claim 1, wherein in the step (2), the formation liquid is an ammonium adipate formation liquid orBoric acid seriesAnd (4) forming liquid.
3. The process for preparing a solid-state aluminum electrolytic capacitor as claimed in claim 2, wherein in the step (2), the voltage value applied to the positive electrode and the negative electrode of the core pack is 0.8-1.2 times of the withstand voltage value of the positive foil.
4. The process for preparing a solid-state aluminum electrolytic capacitor according to claim 1, wherein in the step (3), the core bag after the chemical conversion repair treatment is impregnated with the conductive polymer dispersion under a negative pressure condition of a vacuum degree of 50-90 kPa.
5. The process for preparing a solid-state aluminum electrolytic capacitor as claimed in claim 4, wherein the conductive polymer dispersion is an aqueous PEDOT/PSS dispersion.
6. The process for preparing a solid-state aluminum electrolytic capacitor according to claim 1, wherein in the step (4), the core pack being dried is electrified by a direct current power supply, the electrified voltage is 0.7-1.1 times of the withstand voltage value of the positive electrode foil, and the electrified current is 1-8 mA.
7. The process as claimed in claim 6, wherein the drying temperature in step (4) is 120-200 ℃ and the drying time is 60-150 min.
8. The process for preparing a solid-state aluminum electrolytic capacitor according to claim 1, wherein in the step (5), the temperature of the secondary drying is 80-200 ℃, and the time of the secondary drying is 60-150 min.
9. The process for preparing a solid aluminum electrolytic capacitor according to claim 1, wherein in the step (5), the number of impregnation with the post-treatment agent is 1-5, and the time for each impregnation with the post-treatment agent is 1-10 min.
10. A solid-state aluminum electrolytic capacitor produced by the production process according to any one of claims 1 to 9.
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| CN112117129A (en) * | 2020-09-29 | 2020-12-22 | 新疆众和股份有限公司 | Mixed acidification formation process of high-voltage high-capacity low-defect anode foil |
| CN112420390A (en) * | 2020-11-17 | 2021-02-26 | 益阳市万京源电子有限公司 | Preparation method of solid-state aluminum electrolytic capacitor with high electrostatic capacity |
| CN112435857A (en) * | 2020-11-27 | 2021-03-02 | 肇庆绿宝石电子科技股份有限公司 | Solid capacitor and impregnation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432830A (en) * | 2006-04-27 | 2009-05-13 | 杜邦帝人先进纸有限公司 | Method for producing electrode sheet |
| KR20090103432A (en) * | 2008-03-28 | 2009-10-01 | 엘지마이크론 주식회사 | Electro Double Layer Capacitor And Method Thereof |
| CN102651481A (en) * | 2012-04-20 | 2012-08-29 | 丁振荣 | Multi-process integrated device for lithium battery |
| WO2015041051A1 (en) * | 2013-09-20 | 2015-03-26 | アイオン株式会社 | Activated carbon for use in electrode of power-storage device, and method for producing same |
| CN104637687A (en) * | 2015-02-06 | 2015-05-20 | 肇庆绿宝石电子科技股份有限公司 | Manufacturing method for high-voltage solid electrolyte aluminum electrolytic capacitor |
| CN108172423A (en) * | 2017-11-18 | 2018-06-15 | 湖南艾华集团股份有限公司 | High pressure takeup type solid electrolytic capacitor is impregnated with modification method |
| CN108648913A (en) * | 2018-04-09 | 2018-10-12 | 益阳市万京源电子有限公司 | A kind of solid-state aluminum electrolytic capacitor |
| CN109920646A (en) * | 2019-03-04 | 2019-06-21 | 益阳艾华富贤电子有限公司 | A kind of preparation process improving high-voltage solid-state aluminium electrolutic capacitor low-temperature characteristics |
-
2019
- 2019-08-08 CN CN201910730689.6A patent/CN110676058B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432830A (en) * | 2006-04-27 | 2009-05-13 | 杜邦帝人先进纸有限公司 | Method for producing electrode sheet |
| KR20090103432A (en) * | 2008-03-28 | 2009-10-01 | 엘지마이크론 주식회사 | Electro Double Layer Capacitor And Method Thereof |
| CN102651481A (en) * | 2012-04-20 | 2012-08-29 | 丁振荣 | Multi-process integrated device for lithium battery |
| WO2015041051A1 (en) * | 2013-09-20 | 2015-03-26 | アイオン株式会社 | Activated carbon for use in electrode of power-storage device, and method for producing same |
| CN104637687A (en) * | 2015-02-06 | 2015-05-20 | 肇庆绿宝石电子科技股份有限公司 | Manufacturing method for high-voltage solid electrolyte aluminum electrolytic capacitor |
| CN108172423A (en) * | 2017-11-18 | 2018-06-15 | 湖南艾华集团股份有限公司 | High pressure takeup type solid electrolytic capacitor is impregnated with modification method |
| CN108648913A (en) * | 2018-04-09 | 2018-10-12 | 益阳市万京源电子有限公司 | A kind of solid-state aluminum electrolytic capacitor |
| CN109920646A (en) * | 2019-03-04 | 2019-06-21 | 益阳艾华富贤电子有限公司 | A kind of preparation process improving high-voltage solid-state aluminium electrolutic capacitor low-temperature characteristics |
Cited By (8)
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|---|---|---|---|---|
| CN112017866A (en) * | 2020-08-19 | 2020-12-01 | 肇庆市恒英电子有限公司 | High-frequency low-resistance electrolytic capacitor and processing method thereof |
| CN112117129A (en) * | 2020-09-29 | 2020-12-22 | 新疆众和股份有限公司 | Mixed acidification formation process of high-voltage high-capacity low-defect anode foil |
| CN112117129B (en) * | 2020-09-29 | 2021-06-15 | 新疆众和股份有限公司 | Mixed acidification formation process of high-voltage high-capacity low-defect anode foil |
| CN112420390A (en) * | 2020-11-17 | 2021-02-26 | 益阳市万京源电子有限公司 | Preparation method of solid-state aluminum electrolytic capacitor with high electrostatic capacity |
| CN112420390B (en) * | 2020-11-17 | 2022-08-02 | 益阳市万京源电子有限公司 | Preparation method of solid-state aluminum electrolytic capacitor with high electrostatic capacity |
| CN112435857A (en) * | 2020-11-27 | 2021-03-02 | 肇庆绿宝石电子科技股份有限公司 | Solid capacitor and impregnation method thereof |
| CN114156090A (en) * | 2021-11-26 | 2022-03-08 | 佛山市三水日明电子有限公司 | Manufacturing process of cover plate type high-voltage solid aluminum electrolytic capacitor |
| CN114156090B (en) * | 2021-11-26 | 2024-03-15 | 佛山市三水日明电子有限公司 | Manufacturing process of cover plate type high-voltage solid aluminum electrolytic capacitor |
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