CN110676055A - Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor - Google Patents
Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN110676055A CN110676055A CN201910976043.6A CN201910976043A CN110676055A CN 110676055 A CN110676055 A CN 110676055A CN 201910976043 A CN201910976043 A CN 201910976043A CN 110676055 A CN110676055 A CN 110676055A
- Authority
- CN
- China
- Prior art keywords
- impregnation
- core package
- capacitor
- electrolytic capacitor
- aluminum electrolytic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 66
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 52
- 238000005470 impregnation Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims abstract description 7
- 229920000144 PEDOT:PSS Polymers 0.000 claims abstract description 6
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 6
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 6
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/145—Liquid electrolytic capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor, which comprises the following steps: manufacturing a core package for a capacitor; the obtained core package was impregnated to PEDOT: PSS and other mixed liquid are subjected to positive and negative cyclic pressurization through external pressurization equipment to obtain a core package subjected to primary impregnation; drying the obtained core cladding subjected to preliminary impregnation at a high temperature to obtain a dried core cladding; impregnating the obtained dried core cladding into conventional electrolyte again to obtain a core cladding subjected to secondary impregnation; the electrolyte of the invention adopts PEDOT: PSS and other mixed liquor, and due to the high conductivity of the mixed liquor, the speed of primary impregnation of the core bag is greatly increased; meanwhile, the method of positive and negative pressure circulating impregnation is adopted during the primary impregnation, so that the suspension can be uniformly dispersed and permeated into microscopic holes of the aluminum foil, the speed and effect of the primary impregnation are improved, the production time is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of preparation of hybrid aluminum electrolytic capacitors, in particular to a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor.
Background
Compared with the common lead-type aluminum electrolytic capacitor, the conductive polymer solid aluminum electrolytic capacitor has the characteristics of extremely low ESR and excellent high-frequency filtering performance, and the application of the conductive polymer solid aluminum electrolytic capacitor in the fields of computer motherboards, game machines, high-end digital products, chargers and the like is rapidly increasing in recent years.
However, most of the existing conventional liquid aluminum electrolytic capacitors have the problems that the impedance level cannot be greatly reduced and the conventional liquid aluminum electrolytic capacitors cannot be further applied to a driving power supply requiring extremely low loss; the solid capacitor has large leakage and no repairability, and the material and manufacturing cost of the solid capacitor is high, so that the application of the solid capacitor is greatly hindered, and the conventional solid-liquid mixed capacitor is long in manufacturing time and low in production efficiency. Based on the above, the invention designs a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor, so as to solve the above problems.
Disclosure of Invention
The invention aims to provide a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor, so as to solve the technical problems.
In order to achieve the purpose, the invention provides the following technical scheme: a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor comprises the following steps:
s1: manufacturing a core package for a capacitor;
s2: impregnating the core package obtained in step S1 into PEDOT: PSS and other mixed liquid are subjected to positive and negative cyclic pressurization through external pressurization equipment to obtain a core package subjected to primary impregnation;
s3: drying the preliminarily impregnated core package obtained in the step S2 at a high temperature to obtain a dried core package;
s4: impregnating the dried core package obtained in the step S3 into conventional electrolyte again to obtain a core package subjected to secondary impregnation;
s5: and (5) assembling and aging the core cladding subjected to secondary impregnation obtained in the step (S4) to form a finished product of the hybrid aluminum electrolytic capacitor.
Preferably, in the step S2, during the positive-negative cyclic pressurization by the external pressurization device, the positive pressure is controlled to be between 0.5bar ~ 60bar, and the negative pressure is controlled to be between 13mbar ~ 98mbar and 98 mbar.
Preferably, the step S1 specifically includes: the guide pin is riveted on the aluminum foil through a coil nailing machine, the anode aluminum foil, the cathode foil and the isolation paper are wound into a core package, and the isolation paper is arranged between the anodized aluminum foil and the cathode foil.
Preferably, the step S5 specifically includes: assembling the impregnated core package obtained in the step S4 into a capacitor shell, and sealing the capacitor shell through a rubber plug to obtain a semi-finished capacitor; and aging and charging the semi-finished product capacitor to form the finished product mixed type aluminum electrolytic capacitor.
Preferably, the drying temperature in the step S3 is between 60 ~ 180 ℃ and the drying time is 5 ~ 60 min.
Compared with the prior art, the invention has the beneficial effects that:
the electrolyte in the invention adopts PEDOT: PSS and other mixed liquor, and due to the high conductivity of the mixed liquor, the speed of primary impregnation of the core bag is greatly increased; meanwhile, the suspension can be uniformly dispersed and permeated into microscopic holes of the aluminum foil by adopting a positive and negative pressure circulating impregnation method during primary impregnation, so that the primary impregnation speed and effect are improved, the production time is reduced, and the production efficiency is improved; meanwhile, the hybrid aluminum electrolytic capacitor manufactured by the manufacturing method has high stability and good repairability, thereby improving the application range of the solid-liquid hybrid capacitor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a manufacturing method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Referring to fig. 1, the present invention provides a technical solution: in particular to a two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor, which comprises the following steps:
s1: manufacturing a core package for a capacitor;
s2: impregnating the core package obtained in step S1 into PEDOT: PSS and other mixed liquid are subjected to positive and negative cyclic pressurization through external pressurization equipment to obtain a core package subjected to primary impregnation;
s3: drying the preliminarily impregnated core package obtained in the step S2 at a high temperature to obtain a dried core package;
s4: impregnating the dried core packet obtained in the step S3 into a conventional liquid electrolyte again to obtain a core packet subjected to secondary impregnation;
s5: and (5) assembling and aging the core cladding subjected to secondary impregnation obtained in the step (S4) to form the finished product of the solid-liquid hybrid capacitor.
Specifically, in the process of positive and negative cyclic pressurization by external pressurization equipment in step S2, the positive pressure is preferably controlled to be 0.5bar ~ 60bar, and the negative pressure is preferably controlled to be 13mbar ~ 98mbar, and the positive and negative pressures are respectively controlled to be in appropriate working intervals, so that the suspension can be rapidly and uniformly dispersed and infiltrated into the micro-holes of the aluminum foil.
Specifically, step S1 specifically includes: the guide pin is riveted on the aluminum foil through a coil nailing machine, the anode aluminum foil, the cathode foil and the isolation paper are wound into a core package, and the isolation paper is arranged between the anodized aluminum foil and the cathode foil.
Specifically, step S5 specifically includes: assembling the impregnated core package obtained in the step S4 into a capacitor shell, and sealing the capacitor shell through a rubber plug to obtain a semi-finished capacitor; and aging and charging the semi-finished product capacitor to form the finished product mixed type aluminum electrolytic capacitor.
Specifically, the temperature for drying in step S3 is 60 ~ 180 ℃, the time for drying is 5 ~ 60min, and high-temperature drying is performed in the temperature interval and the drying time period, so that the optimal core package can be obtained.
In the first embodiment, when the hybrid aluminum electrolytic capacitor is manufactured, a guide pin is riveted on an aluminum foil through a coil nailing machine, an anode aluminum foil, a cathode foil and an isolation paper are wound into a core package, then the manufactured core package is impregnated into a mixed solution of PEDOT, PSS and the like, and because the PEDOT, PSS (a mixed solution of 3, 4-ethylene dioxythiophene monomer and polystyrene sulfonate) is a high-molecular polymer aqueous solution with high conductivity, the speed of primary core package impregnation is greatly improved, then the primarily impregnated core package is dried at the temperature of 60 ~ 180 ℃ for 5 ~ 60min to obtain a dried core package, then the dried core package is impregnated into a conventional electrolyte to obtain a secondarily impregnated core package, then the impregnated core package is assembled into a capacitor shell, the capacitor shell is sealed through a rubber plug to obtain a semi-finished capacitor, and the semi-finished capacitor is aged and charged to form the hybrid aluminum electrolytic capacitor.
The prepared mixed type aluminum electrolytic capacitor is respectively subjected to the following two groups of tests:
testing one: the hybrid aluminum electrolytic capacitor of the present invention, the liquid aluminum electrolytic capacitor and the solid aluminum electrolytic capacitor of the same specification are placed in the same working environment for test comparison, and the obtained test data is shown in table 1 (taking the capacitor of the specification of 35V220UF as an example):
TABLE 1
From the test comparison data set out in table 1 we can conclude that:
1. compared with a solid-state aluminum electrolytic capacitor: the leakage current is greatly reduced;
2. compared with the liquid aluminum electrolytic capacitor, the loss is reduced, and the impedance is greatly reduced by about 30 ~ 80% (depending on different proportions of solutes)
Therefore, the hybrid aluminum electrolytic capacitor obtained by the manufacturing method has high stability and good repairability according to test data.
And (2) testing: after the test data of the hybrid aluminum electrolytic capacitor of the invention when not in operation is recorded, the hybrid aluminum electrolytic capacitor of the invention is placed in a specific working environment to work for a period of time, the same test data is recorded, and the two times of data are analyzed and compared to obtain the test data shown in table 2 (taking 35Vdc as an example of a working environment at 105 ℃):
TABLE 2
From the experimental data set out in table 2 we can conclude that: the mixed type aluminum electrolytic capacitor produced by the manufacturing method has the characteristic of high stability, namely after the mixed type aluminum electrolytic capacitor works for a period of time in a specific working environment, the normal-temperature test electrical property data of the solid-liquid mixed capacitor is the same as that of the initial stage.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (5)
1. A two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor is characterized by comprising the following steps: the method comprises the following steps:
s1: manufacturing a core package for a capacitor;
s2: impregnating the core package obtained in step S1 into PEDOT: PSS and other mixed liquid are subjected to positive and negative cyclic pressurization through external pressurization equipment to obtain a core package subjected to primary impregnation;
s3: drying the preliminarily impregnated core package obtained in the step S2 at a high temperature to obtain a dried core package;
s4: impregnating the dried core package obtained in the step S3 into conventional electrolyte again to obtain a core package subjected to secondary impregnation;
s5: and (5) assembling and aging the core cladding subjected to secondary impregnation obtained in the step (S4) to form a finished product of the hybrid aluminum electrolytic capacitor.
2. A two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor is characterized in that in the process of carrying out positive and negative circulation pressurization through external pressurization equipment in the step S2, positive pressure is preferably controlled to be 0.5bar ~ 60bar, and negative pressure is preferably controlled to be 13mbar ~ 98 mbar.
3. A two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor is characterized by comprising the following steps: the step S1 specifically includes: the guide pin is riveted on the aluminum foil through a coil nailing machine, the anode aluminum foil, the cathode foil and the isolation paper are wound into a core package, and the isolation paper is arranged between the anodized aluminum foil and the cathode foil.
4. A two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor is characterized by comprising the following steps: the step S5 specifically includes: assembling the impregnated core package obtained in the step S4 into a capacitor shell, and sealing the capacitor shell through a rubber plug to obtain a semi-finished capacitor; and aging and charging the semi-finished product capacitor to form the finished product mixed type aluminum electrolytic capacitor.
5. A two-step impregnation preparation method of a hybrid aluminum electrolytic capacitor is characterized in that the drying temperature in the step S3 is 60 ~ 180 ℃, and the drying time is 5 ~ 60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910976043.6A CN110676055A (en) | 2019-10-15 | 2019-10-15 | Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910976043.6A CN110676055A (en) | 2019-10-15 | 2019-10-15 | Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110676055A true CN110676055A (en) | 2020-01-10 |
Family
ID=69082478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910976043.6A Pending CN110676055A (en) | 2019-10-15 | 2019-10-15 | Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110676055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539693A (en) * | 2020-10-13 | 2021-10-22 | 南通一品机械电子有限公司 | Method for reducing loss of high-voltage aluminum electrolytic capacitor |
| CN113745008A (en) * | 2021-07-22 | 2021-12-03 | 湖南艾华集团股份有限公司 | Solid aluminum electrolytic capacitor based on modified PEDOT-PSS and preparation method thereof |
| CN115172063A (en) * | 2022-06-09 | 2022-10-11 | 陈建 | High-temperature packaging method for liquid aluminum electrolytic capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623193A (en) * | 2012-04-26 | 2012-08-01 | 成都精容电子有限公司 | Aluminum electrolytic capacitor with long life, high frequency and low impedance and manufacturing method thereof |
| CN103560006A (en) * | 2013-10-12 | 2014-02-05 | 珠海华冠电容器有限公司 | Manufacturing method for solid-liquid mixed type aluminum electrolytic capacitor |
| CN104637691A (en) * | 2015-02-06 | 2015-05-20 | 肇庆绿宝石电子科技股份有限公司 | Solid electrolyte aluminum electrolytic capacitor and manufacturing method thereof |
| US9202634B2 (en) * | 2012-02-10 | 2015-12-01 | Toyo Aluminium Kabushiki Kaisha | Method for manufacturing electrode material for aluminum electrolytic capacitor |
| 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 |
-
2019
- 2019-10-15 CN CN201910976043.6A patent/CN110676055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9202634B2 (en) * | 2012-02-10 | 2015-12-01 | Toyo Aluminium Kabushiki Kaisha | Method for manufacturing electrode material for aluminum electrolytic capacitor |
| CN102623193A (en) * | 2012-04-26 | 2012-08-01 | 成都精容电子有限公司 | Aluminum electrolytic capacitor with long life, high frequency and low impedance and manufacturing method thereof |
| CN103560006A (en) * | 2013-10-12 | 2014-02-05 | 珠海华冠电容器有限公司 | Manufacturing method for solid-liquid mixed type aluminum electrolytic capacitor |
| CN104637691A (en) * | 2015-02-06 | 2015-05-20 | 肇庆绿宝石电子科技股份有限公司 | Solid electrolyte aluminum electrolytic capacitor and manufacturing method thereof |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113539693A (en) * | 2020-10-13 | 2021-10-22 | 南通一品机械电子有限公司 | Method for reducing loss of high-voltage aluminum electrolytic capacitor |
| CN113745008A (en) * | 2021-07-22 | 2021-12-03 | 湖南艾华集团股份有限公司 | Solid aluminum electrolytic capacitor based on modified PEDOT-PSS and preparation method thereof |
| CN115172063A (en) * | 2022-06-09 | 2022-10-11 | 陈建 | High-temperature packaging method for liquid aluminum electrolytic capacitor |
| CN115172063B (en) * | 2022-06-09 | 2024-02-06 | 陈建 | High-temperature packaging method for liquid aluminum electrolytic capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110676055A (en) | Two-step impregnation preparation method of hybrid aluminum electrolytic capacitor | |
| US10147552B2 (en) | Conductive polymer particle dispersion, electrolytic capacitor using same, and method of producing these | |
| CN110692115B (en) | Hybrid aluminum electrolytic capacitor and manufacturing method thereof | |
| US9892859B2 (en) | Method of producing conductive polymer particle dispersion, and method of producing electrolytic capacitor using conductive polymer particle dispersion | |
| CN110676058B (en) | Preparation process of solid-state aluminum electrolytic capacitor and solid-state aluminum electrolytic capacitor | |
| CN103560006A (en) | Manufacturing method for solid-liquid mixed type aluminum electrolytic capacitor | |
| CN105826076B (en) | A kind of solid-state capacitor and its production method | |
| CN110634681B (en) | Impregnation preparation method of hybrid aluminum electrolytic capacitor | |
| WO2020073189A1 (en) | Hybrid aluminum electrolytic capacitor and manufacturing method therefor | |
| CN201796735U (en) | Surface mounted device (SMD) super capacitor | |
| CN112563033A (en) | Novel solid-state aluminum electrolytic capacitor and preparation method thereof | |
| CN111091972B (en) | Manufacturing method of charge-discharge-resistant solid-state aluminum electrolytic capacitor | |
| CN112071647A (en) | Solid-state aluminum electrolytic capacitor with good cycle performance and preparation method thereof | |
| CN111029155A (en) | Solid-state aluminum electrolytic capacitor with good mechanical property and preparation method thereof | |
| CN109786137B (en) | Preparation method of solid capacitor | |
| WO2015198546A1 (en) | Method for producing electrolytic capacitor | |
| CN109741954B (en) | Solid-state aluminum electrolytic capacitor preparation process adopting efficient formation method | |
| CN107039184B (en) | A kind of solid-state aluminum electrolytic capacitor and preparation method thereof | |
| CN114783775B (en) | Solid aluminum electrolytic capacitor and preparation method thereof | |
| CN109920646A (en) | A kind of preparation process improving high-voltage solid-state aluminium electrolutic capacitor low-temperature characteristics | |
| JP4475669B2 (en) | Manufacturing method of solid electrolytic capacitor | |
| CN113658802A (en) | Low-impedance solid-liquid mixed electrolyte and preparation method and application thereof | |
| CN112038096B (en) | Ripple current resistant solid-state aluminum electrolytic capacitor and preparation method thereof | |
| CN110690050A (en) | Novel gel electrolyte manufacturing method and aluminum electrolytic capacitor | |
| CN211208257U (en) | Superconductive solid-state capacitance guide pin with good heat dissipation performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |
|
| RJ01 | Rejection of invention patent application after publication |