CN112331480A - Preparation method of multifunctional laminated aluminum electrolytic capacitor - Google Patents
Preparation method of multifunctional laminated aluminum electrolytic capacitor Download PDFInfo
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- CN112331480A CN112331480A CN202011228958.8A CN202011228958A CN112331480A CN 112331480 A CN112331480 A CN 112331480A CN 202011228958 A CN202011228958 A CN 202011228958A CN 112331480 A CN112331480 A CN 112331480A
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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
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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
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
Abstract
The invention provides a multifunctional laminated aluminum electrolytic capacitor, wherein the purity of aluminum in an aluminum sheet material in the capacitor is controlled to be more than 99.99 percent, the multifunctional laminated aluminum electrolytic capacitor comprises a core body and an aluminum plastic film coated outside the core body, the core body is composed of a positive electrode leading-out terminal, a negative electrode leading-out terminal and an anode aluminum foil, wherein a multi-cavity structure of the anode aluminum foil is filled with a conductive polymer electrolyte, the conductive polymer electrolyte is sequentially coated with a graphite layer and a silver layer negative electrode copper foil aluminum plastic film, the anode aluminum foil has a one-layer or multi-layer laminated structure, the area of the anode foil of the capacitor is different from 40mm to 50mm to 150 mm to 200mm, the number of laminated layers is 1 to 30, and the product obtained by the scheme has safer and more reliable performance, does not burn, simultaneously has smaller equivalent series resistance and better temperature adaptability, and is more suitable for various high-frequency.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a preparation method of a multifunctional laminated aluminum electrolytic capacitor.
Background
The capacitor is an important component of electronic components, and with the rapid development of science and technology in recent years, the capacitor for military products is an important development direction for ultrahigh voltage, ultrahigh capacity, high-temperature reliability and the like. The ultra-thin, ultra-large, ultra-high voltage-resistant and ultra-large capacity laminated aluminum electrolytic capacitor is an important research and development direction in capacitor industry in recent years, international and domestic, and compared with the traditional liquid aluminum electrolytic capacitor, the product is a polar and surface-mounted capacitor. The traditional liquid aluminum electrolytic capacitor is relatively simple to manufacture, and the equipment and the materials are easy to match, so that the unit price of the product is relatively low. However, the liquid electrolyte of the product has the defects of large resistivity change along with temperature change, potential safety hazard of liquid leakage and the like. The ultra-thin, ultra-large, ultra-high voltage-resistant and ultra-large capacity laminated aluminum electrolytic capacitor can avoid the defects because of using an organic polymer cathode material or an organic polymer/high boiling point electrolyte complex compound and combining the aluminum-plastic packaging technology of the lithium battery.
Disclosure of Invention
The invention aims to provide a laminated aluminum electrolytic capacitor with more stable performance, smaller equivalent series resistance and more excellent high-temperature leakage current performance.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the production process of the multifunctional laminated aluminum electrolytic capacitor comprises the following steps:
1) stamping foil: punching foils on the anode aluminum foil and the cathode copper foil respectively, wherein the edges of the punched foils are smooth and have no burrs;
2) and welding: welding the positive aluminum foil to the carrier strip, wherein the upper edge of the aluminum foil at the welding part is flush with the upper edge of the iron strip;
3) and formation: placing the foil into a forming groove to form the alloy, wherein the final current is less than 0.02CV, and the composition of a forming solution is as follows: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
4) and cleaning: putting the foil into a pure water tank for cleaning, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-20 minutes;
5) and (3) heat treatment: putting the foil into an oven, carrying out high-temperature heat treatment, removing organic matters, and repairing the defects of the oxide film;
6) and formation: placing the foil into a forming groove to form the alloy, wherein the final current is less than 0.02CV, and the composition of a forming solution is as follows: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
7) and cleaning: cleaning the foil in a pure water tank, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-20 minutes;
8) and (3) drying: putting the foil into an oven for drying, wherein the drying temperature is 150-200 ℃, and the drying time is 10-20 minutes;
9) and gluing for the first time: gluing and sealing the edge of the foil;
10) and curing: placing the foil coated with the glue into an oven for curing, wherein the curing condition temperature is 150-200 ℃, the curing time is 10-20 minutes, coating the reverse side after the surface of the single side is dried, and curing for 20-40 minutes after the reverse side is coated with the glue at 150-200 ℃;
11) forming an inner layer organic polymer cathode, and preparing a conductive polymer organic polymer as the cathode by using a chemical polymerization, electrochemical polymerization or physical coating method; and the electrolyte is fully permeated into the element under the conditions of vacuum and high pressure; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of the oxidant is controlled to be 22-28 ℃;
12) and formation: and (3) putting the foil into the chemical synthesis tank again for chemical synthesis, repairing the oxide film again, removing the contact point of the polymer and the aluminum foil substrate, and finally, enabling the current to be less than 0.01CV and forming liquid components: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
13) and cleaning: putting the foil into a pure water tank for cleaning, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-10 minutes;
14) and (3) drying: putting the foil into an oven to be dried, wherein the temperature is 150-200 ℃, and the time is 10-20 minutes;
15) forming an outer organic polymer cathode, and preparing a conductive polymer organic polymer as the cathode by using a chemical polymerization, electrochemical polymerization or physical coating method; under the conditions of vacuum and high pressure, the outer layer organic polymer is tightly combined with the inner layer polymer; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of an oxidant is controlled to be 22-28 ℃; and forming an outer high molecular layer, and isolating the contact of the carbon paste and the foil, wherein the thickness of the single surface of the total high molecular layer is 25 +/-5 microns. If the product with more than 70V is involved, an organic polymer/high boiling point electrolyte complex cathode is adopted;
16) and secondary gluing: isolating the high molecular thin area at the edge of the foil from the carbon slurry;
17) and carbon coating: covering a carbon layer on the middle area of the surface of the polymer, wherein the thickness of the carbon layer is 15 +/-5 mu m after drying;
18) and (3) drying: placing the foil coated with the carbon paste into an oven for curing, returning to the carbon coating process after one surface is cured, coating the back surface after the single surface is dried for 10-20 minutes at the curing temperature of 150-200 ℃, and curing for 30-40 minutes at 150-200 ℃ after the back surface is coated;
19) and cutting off: cutting the foil from the carrier strip;
20) and copper foil bonding: dispensing silver glue points on the surface of the middle part of the silver layer, placing copper foil on the silver glue, placing the copper foil on two sides, placing the silver glue into a pressing plate, and drying in an oven;
21) aging: cutting off for the second time, cutting off redundant aluminum foil and copper foil, and welding a terminal;
22) and sealing the protection plate: gluing and covering a protective plastic plate to a specified position;
23) electrifying the product, and then putting the product into an oven for aging, wherein LC is less than 0.005 CV;
24) and testing the product capacity, loss, ESR and LC, cooling to room temperature, and determining that the product is within the product specification.
This scheme adopts organic polymer, and organic polymer/high boiling point electrolyte complex replaces traditional electrolyte as main cathode material, compares with traditional aluminium electric capacity, and ultra-thin super large superelevation withstand voltage super large capacity's stromatolite aluminium electrolytic capacitor can not appear dryly and explode, also can not appear open fire if the short circuit. The product has the characteristics of high-temperature stability (-55-125 ℃), rapid discharge, small volume and no liquid leakage phenomenon, and the service life of the product can reach 40000 hours in a working environment at 85 ℃. Moreover, the organic polymer conductor capacitor has good temperature characteristics, can endure high temperature of more than 300 ℃, has good safety, and can not generate explosion or open fire when the electrolyte is just melted when meeting high temperature. The product obtained by the scheme has safer and more reliable performance, does not burn, has smaller equivalent series resistance and better temperature adaptability, and is more suitable for various high-frequency circuits, CPUs (central processing units) and other circuits.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings, in which preferred embodiments of the invention are: referring to the attached drawing 1, in the ultra-thin, ultra-large, ultra-high voltage-resistant and ultra-large capacity laminated aluminum electrolytic capacitor of the present embodiment, the purity of aluminum in an aluminum sheet material in the capacitor is controlled to be more than 99.99%, and a production process thereof includes the following steps:
1) stamping foil, namely stamping foil on the anode aluminum foil and the cathode copper foil respectively, wherein the edge of the stamped foil is smooth and has no burrs;
2) the welding, with anodal aluminium foil welded the carrier bar on, welding position aluminium foil upper edge and ironbar top edge parallel and level, the welding strength requirement: the foil is bent by 45 degrees and then folded back without falling off.
3) And (3) formation, namely, placing the foil into a formation tank to form the metal foil, wherein the final current is less than 0.02CV, and the formation solution comprises the following components: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes.
4) And cleaning, namely putting the foil into a pure water tank for cleaning, wherein the pure water temperature is as follows: above 25 ℃, washing time: for 5 minutes.
5) And (4) performing heat treatment, namely putting the foil into an oven, performing high-temperature heat treatment, removing organic matters, and repairing the oxide film defect. 200 to 400 ℃/1 to 60 minutes
6) And (3) formation, namely, placing the foil into a formation tank to form the metal foil, wherein the final current is less than 0.02CV, and the formation solution comprises the following components: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes.
7) And cleaning, namely putting the foil into a pure water tank for cleaning, wherein the pure water temperature is as follows: above 25 ℃, washing time: for 5 minutes.
8) And drying, namely putting the foil into an oven for drying at 150 ℃/10 minutes.
9) And gluing for the first time, and gluing and sealing the edge of the foil.
10) And (3) curing, namely putting the adhesive-coated foil into an oven for curing, wherein the curing conditions are as follows: after the surface of one side is dried at 150 ℃/10 minutes, the back side is coated, and after the back side is coated, the curing is carried out for 30 minutes at 150 ℃.
11) Forming an inner layer organic polymer cathode, and preparing a conductive polymer organic polymer as the cathode by using a chemical polymerization, electrochemical polymerization or physical coating method; and the electrolyte is fully permeated into the element under the conditions of vacuum and high pressure; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of the oxidant is controlled to be 22-28 ℃;
12) and (3) formation, namely, putting the foil into a formation tank again for formation, repairing the oxide film again, removing the contact point of the polymer and the aluminum foil substrate, and finally, ensuring that the current is less than 0.01CV and forming liquid components: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes.
13) And cleaning, namely putting the foil into a pure water tank for cleaning, wherein the pure water temperature is as follows: above 25 ℃, washing time: for 5 minutes.
14) And drying, namely putting the foil into an oven for drying at 150 ℃/10 minutes.
15) Forming an outer organic polymer cathode, and preparing a conductive polymer organic polymer as the cathode by using a chemical polymerization, electrochemical polymerization or physical coating method; under the conditions of vacuum and high pressure, the outer layer organic polymer is tightly combined with the inner layer polymer; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of the oxidant is controlled to be 22-28 ℃; and forming an outer high molecular layer, and isolating the contact of the carbon paste and the foil, wherein the thickness of the single surface of the total high molecular layer is 25 +/-5 microns. If a product of 70V or more is involved, an organic polymer/high boiling point electrolyte complex cathode will be used.
16) And secondary gluing, wherein the thin polymer area at the edge of the foil is isolated from the carbon slurry.
17) And coating carbon, covering a carbon layer on the middle area of the surface of the polymer, and drying to obtain the carbon layer with the thickness of 15 +/-5 microns.
18) Drying, namely putting the foil coated with the carbon slurry into an oven for curing, returning the carbon coating process after one surface of the foil is cured to coat the back surface, wherein the curing conditions are as follows: after the surface of one side is dried at 150 ℃ for 10 minutes, the other side is coated, and after the coating of the other side is finished, the curing is carried out for 30 minutes at 150 ℃.
19) Cutting the foil from the carrier strip.
20) And adhering copper foil, dispensing silver glue points on the surface of the middle part of the silver layer, placing the copper foil on the silver glue, placing the copper foil on two surfaces, then placing the pressing plate in the oven, and drying the pressing plate in the oven.
21) Aging, secondary cutting, cutting off redundant aluminum foil and copper foil, and welding terminals.
22) And the protective plate is used for coating the protective plastic plate with glue and covering the protective plastic plate at the designated position.
23) And electrifying the product, and then putting the product into an oven for aging, wherein LC is less than 0.005 CV.
24) And testing the product capacity, loss, ESR and LC, cooling to room temperature, and determining that the product is within the product specification.
The laminated aluminum electrolytic capacitor manufactured by the method comprises a core body and an aluminum plastic film coated outside the core body, wherein the core body is composed of a positive electrode leading-out terminal 1, a negative electrode leading-out terminal 2 and a positive electrode aluminum foil 3, a porous structure of the positive electrode aluminum foil is filled with a conductive polymer electrolyte, the conductive polymer electrolyte is sequentially coated with a graphite layer, a silver layer, a negative electrode copper foil 4 and an aluminum plastic film 5, and the positive electrode aluminum foil has a one-layer or multi-layer laminated structure. The area of the anode foil of the capacitor is different from 40mm to 50mm to 150 mm to 200mm, and the number of laminated layers is 1 to 30;
the present embodiment combines the advantages of aluminum electrolysis and aluminum organic polymer technologies. The project is improved in the following aspects by redesigning the structure, removing the original lead frame by adopting a new process and adopting the packaging process of the lithium battery:
1. an ultra-large area anode aluminum foil is used as an anode, and a brand new high polymer polymerization process is combined, so that high-capacity output is realized, and a parallel capacitor array can be replaced;
2. the volume efficiency of the product is improved, so that higher pressure resistance and capacity requirements can be realized under the condition of the same volume;
3. because the lead frame is removed, the length of a conductive path of the product is greatly reduced, which is beneficial to reducing ESR, ESL and the like and improving the frequency characteristic of the product;
4. the larger design margin can improve the reliability of the product;
5. the capacitor is resistant to high temperature of 125 ℃, and the organic polymer aluminum capacitor has the characteristics of high capacitance and high ripple current resistance;
6. a special-shaped product can be provided;
7. by adopting the organic polymer/high boiling point electrolyte complex cathode technology, ultrahigh pressure-resistant products, such as pressure-resistant products with the pressure of more than 70V, can be realized.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the changes in the shape and principle of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. A preparation method of a multifunctional laminated aluminum electrolytic capacitor is characterized by comprising the following steps: it comprises the following steps:
1) stamping foil: punching foils on the anode aluminum foil and the cathode copper foil respectively, wherein the edges of the punched foils are smooth and have no burrs;
2) and welding: welding the positive aluminum foil to the carrier strip, wherein the upper edge of the aluminum foil at the welding part is flush with the upper edge of the iron strip;
3) and formation: placing the foil into a forming groove to form the alloy, wherein the final current is less than 0.02CV, and the composition of a forming solution is as follows: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
4) and cleaning: putting the foil into a pure water tank for cleaning, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-20 minutes;
5) and (3) heat treatment: putting the foil into an oven, carrying out high-temperature heat treatment, removing organic matters, and repairing the defects of the oxide film;
6) and formation: placing the foil into a forming groove to form the alloy, wherein the final current is less than 0.02CV, and the composition of a forming solution is as follows: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
7) and cleaning: cleaning the foil in a pure water tank, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-20 minutes;
8) and (3) drying: putting the foil into an oven for drying, wherein the drying temperature is 150-200 ℃, and the drying time is 10-20 minutes;
9) and gluing for the first time: gluing and sealing the edge of the foil;
10) and curing: placing the foil coated with the glue into an oven for curing, wherein the curing condition temperature is 150-200 ℃, the curing time is 10-20 minutes, coating the reverse side after the surface of the single side is dried, and curing for 20-40 minutes after the reverse side is coated with the glue at 150-200 ℃;
11) forming inner organic polymer cathode polymerization, and preparing conductive polymer organic polymer as cathode by chemical polymerization, electrochemical polymerization or physical coating method; and the electrolyte is fully permeated into the element under the conditions of vacuum and high pressure; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of the oxidant is controlled to be 22-28 ℃;
12) and formation: and (3) putting the foil into the chemical synthesis tank again for chemical synthesis, repairing the oxide film again, removing the contact point of the polymer and the aluminum foil substrate, and finally, enabling the current to be less than 0.01CV and forming liquid components: 0.1-10 wt% of ammonium adipate, 0.1-20 wt% of ammonium dihydrogen phosphate and 0.1-10 wt% of phosphoric acid, and the liquid temperature is as follows: liquid level at 30-95 ℃: exceeding the main aluminum foil, forming voltage: aluminum foil voltage, formation current: 0.01-0.8 CV, formation time: 5-120 minutes;
13) and cleaning: putting the foil into a pure water tank for cleaning, wherein the temperature of pure water is more than 25 ℃, and the cleaning time is 5-10 minutes;
14) and (3) drying: putting the foil into an oven to be dried, wherein the temperature is 150-200 ℃, and the time is 10-20 minutes;
15) forming outer organic polymer cathode polymerization, and preparing conductive polymer organic polymer as cathode by chemical polymerization, electrochemical polymerization or physical coating method; under the conditions of vacuum and high pressure, the outer layer organic polymer is tightly combined with the inner layer polymer; the chemical polymerization is to ensure the stability of the cathode layer by circularly dipping the oxidant and the monomer and growing into a compact and uniform organic polymer under a certain environment; the specific gravity value of the monomer solution is controlled to be 0.990-0.995 by using a specific gravity meter, and the temperature of an oxidant is controlled to be 22-28 ℃; forming an outer high molecular layer, and isolating the carbon paste from contacting with the foil, wherein the thickness of the single surface of the total high molecular layer is 25 +/-5 mu m;
if the product with more than 70V is involved, an organic polymer/high boiling point electrolyte complex cathode is adopted;
16) and secondary gluing: isolating the high molecular thin area at the edge of the foil from the carbon slurry;
17) and carbon coating: covering a carbon layer on the middle area of the surface of the polymer, wherein the thickness of the carbon layer is 15 +/-5 mu m after drying;
18) and (3) drying: placing the foil coated with the carbon paste into an oven for curing, returning to the carbon coating process after one surface is cured, coating the back surface after the single surface is dried for 10-20 minutes at the curing temperature of 150-200 ℃, and curing for 30-40 minutes at 150-200 ℃ after the back surface is coated;
19) and cutting off: cutting the foil from the carrier strip;
20) and copper foil bonding: dispensing silver glue points on the surface of the middle part of the silver layer, placing copper foil on the silver glue, placing the copper foil on two sides, placing the silver glue into a pressing plate, and drying in an oven;
21) aging: cutting off for the second time, cutting off redundant aluminum foil and copper foil, and welding a terminal;
22) and sealing the protection plate: gluing and covering a protective plastic plate to a specified position;
23) electrifying the product, and then putting the product into an oven for aging, wherein LC is less than 0.005 CV;
24) and testing the product capacity, loss, ESR and LC, cooling to room temperature, and determining that the product is within the product specification.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475797A (en) * | 2022-09-30 | 2022-12-16 | 肇庆绿宝石电子科技股份有限公司 | Laminated capacitor and manufacturing method thereof, carrier strip cleaning solution and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355436A (en) * | 2015-12-04 | 2016-02-24 | 福建国光电子科技股份有限公司 | Preparation method of lamination sheet type polymer solid aluminum electrolytic capacitor |
| CN105374563A (en) * | 2015-12-04 | 2016-03-02 | 福建国光电子科技股份有限公司 | Preparation method of lamination sheet type polymer solid aluminum electrolytic capacitor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355436A (en) * | 2015-12-04 | 2016-02-24 | 福建国光电子科技股份有限公司 | Preparation method of lamination sheet type polymer solid aluminum electrolytic capacitor |
| CN105374563A (en) * | 2015-12-04 | 2016-03-02 | 福建国光电子科技股份有限公司 | Preparation method of lamination sheet type polymer solid aluminum electrolytic capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475797A (en) * | 2022-09-30 | 2022-12-16 | 肇庆绿宝石电子科技股份有限公司 | Laminated capacitor and manufacturing method thereof, carrier strip cleaning solution and preparation method |
| CN115475797B (en) * | 2022-09-30 | 2024-04-05 | 肇庆绿宝石电子科技股份有限公司 | Laminated capacitor and manufacturing method thereof, carrier strip cleaning liquid and preparation method thereof |
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Application publication date: 20210205 |
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