CN102064025A - Protective device for solid electrolytic capacitor body - Google Patents
Protective device for solid electrolytic capacitor body Download PDFInfo
- Publication number
- CN102064025A CN102064025A CN2009102233058A CN200910223305A CN102064025A CN 102064025 A CN102064025 A CN 102064025A CN 2009102233058 A CN2009102233058 A CN 2009102233058A CN 200910223305 A CN200910223305 A CN 200910223305A CN 102064025 A CN102064025 A CN 102064025A
- Authority
- CN
- China
- Prior art keywords
- capacitor body
- solid electrolytic
- cathode terminal
- anode terminal
- terminal
- 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.)
- Granted
Links
Images
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a protective device for a solid electrolytic capacitor body. The protective device comprises a plurality of capacitor components which are arranged on an anode terminal and a cathode terminal in a laminated mode, wherein the plurality of capacitor components, the anode terminal and the cathode terminal are packaged and fixed by packaging materials such as synthetic resin and the like; and the packaging and fixing process comprises the following steps of: coating one or more layers of insulating glue on the capacitor body consisting of the plurality of capacitor components, the anode terminal and the cathode terminal to form an airtight protective layer; and packaging the capacitor body coated with the insulating glue by using the packaging materials. The protective device for the solid electrolytic capacitor body can overcome the defects that packaging pressure is high, the capacitor body is easy to damage, a short circuit and overhigh leakage current are easy to cause, and the like in the prior art, and has the advantages that: air tightness is high, the packaging pressure is low, the capacitor body is difficult to damage, and the short circuit and the overhigh leakage current are difficult to cause.
Description
Technical field
The present invention relates to the resist technology of capacitor; particularly; the protective device that relates to a kind of solid electrolytic capacitor body is meant a kind of pressure that reduces encapsulating material when encapsulation to capacitor body especially, avoids encapsulating the protective device of the excessive damage capacitor body of pressure.
Background technology
In the prior art, as depicted in figs. 1 and 2, solid electrolytic capacitor 10 comprises the multi-plate condenser assembly 6 that lamination is provided with, in the bottom that is positioned at undermost capacitor assembly 6, anode terminal 12 and cathode terminal 13 are installed, and the lower surface of the lower surface of anode terminal 12 and cathode terminal 13 coats bottom, anode terminal 12 and the cathode terminal 13 of capacitor assembly 6 respectively by synthetic resin 14.
As shown in Figure 2, in above-mentioned capacitor assembly 6, metal aluminum foil 1 has valve action as anode bodies; Be formed with on the surface of metal aluminum foil 1 and be formed with dielectric medium oxide-film 2 and cathode layer 3 successively; Cathode layer 3 is by solid electrolyte layer 3a, the carbon-coating 3b of the electric conductive polymer formation of polythiophene system (polythiophene), reaches silver coating layer 3c formation; The part of the cathode layer 3 that forms on above-mentioned dielectric medium oxide-film 2 is a negative pole part 8, and the part that does not form cathode layer 3 is an anode portion 7; In the multi-plate condenser assembly that capacitor assembly 6 laminations are provided with, welding is fixed between the anode portion of adjacent capacitor assembly, and is then fixing by conductivity solid 18 between the negative pole part, thereby forms the solid electrolytic capacitor 10 of lamination-type.
Near the negative pole part 8 in anode terminal 12 bottom surfaces of above-mentioned anode portion 7 and the boundary 15 of anode portion 7, be provided with the 1st stress and relax the 16 and the 2nd stress that cracks and relax and crack 17; Like this, anode portion 7 can relax the 16 and the 2nd stress that cracks at the 1st stress and relax the 17 places bending of cracking.Because near the boundary 15 of anode portion 7 and negative pole part 8 or its, can suppress applying of bending stress, therefore, the stress that is applied to this part can diminish.But when wrapper was laminated with resin 14, encapsulation pressure still damaged the body of capacitor assembly 6 easily, cause the excessive problem of short circuit and leakage current, therefore, how improving the excessive problem of encapsulation pressure in the prior art, will be the problem that relevant industry is demanded urgently making great efforts.
Summary of the invention
The objective of the invention is to, propose a kind of protective device of solid electrolytic capacitor body, with realize that air-tightness is good, encapsulation pressure is low, easy damaged capacitor body and be difficult for causing short circuit and the excessive advantage of leakage current not.
For achieving the above object, the technical solution used in the present invention is: a kind of protective device of solid electrolytic capacitor body, capacitor body comprises the multi-plate condenser assembly that anode terminal, cathode terminal and lamination are provided with, described multi-plate condenser assembly lamination is arranged on anode terminal and the cathode terminal, and the anode portion of capacitor assembly all is connected with described anode terminal, negative pole part all is connected with cathode terminal; Described multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; The fixing process of described encapsulation is specially: at first, on the capacitor body that is made of multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement, form airtight protective layer; Secondly, adopt described encapsulating material, the capacitor body that applies insulating cement is encapsulated parcel.Here; effect by airtight protective layer; not only can increase the airtight effect of capacitor body; and the pressure that capacitor body is born when reducing encapsulation; avoid encapsulating pressure excessive and the damage capacitor body; and cause problems such as short circuit and leakage current be excessive, simultaneously, also improved the air-tightness problem of capacitor body.
Further, described airtight protective layer is a polymer.
Further, described airtight protective layer is a resin.
Further, described airtight protective layer is resin and/or polymer.
Simultaneously, another technical scheme that the present invention adopts is: a kind of protective device of solid electrolytic capacitor body, capacitor body comprises the multi-plate condenser assembly that anode terminal, cathode terminal and lamination are provided with, described multi-plate condenser assembly builds up and is arranged on anode terminal and the cathode terminal, and the anode portion of capacitor assembly all is connected with described anode terminal, negative pole part all is connected with cathode terminal; Described multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; At the opposite side of described anode terminal and cathode terminal, parallel another group capacitor body that is provided with; The fixing process of described encapsulation is specially: at first, on the capacitor body that is made of described multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement, form airtight protective layer; Secondly, adopt described encapsulating material, the capacitor body that applies insulating cement is encapsulated parcel.Here; effect by airtight protective layer; not only can increase the airtight effect of capacitor body; and the pressure that capacitor body is born when reducing encapsulation; avoid encapsulating pressure excessive and the damage capacitor body; and cause problems such as short circuit and leakage current be excessive, simultaneously, also improved the air-tightness problem of capacitor body.
Further, in the both sides of described anode terminal and cathode terminal, be respectively equipped with at least one group capacitor body.
Further, described airtight protective layer is a polymer.
Further, described airtight protective layer is a resin.
Further, described airtight protective layer is resin and/or polymer.
The protective device of the solid electrolytic capacitor body of various embodiments of the present invention, capacitor body comprises the multi-plate condenser assembly, multi-plate condenser assembly lamination is arranged on anode terminal and the cathode terminal, and the anode portion of capacitor assembly all is connected with anode terminal, negative pole part all is connected with cathode terminal; Multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; When encapsulating fixedly: on the capacitor body that constitutes by multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement earlier, form airtight protective layer; Adopt encapsulating material again, the capacitor body that applies insulating cement is encapsulated parcel; Like this, see through the successively decrease pressure of encapsulating material of airtight protective layer, in the time of can avoiding encapsulating,, further cause problems such as short circuit and leakage current owing to the excessive capacitor body that damages of encapsulating material overburden pressure; Simultaneously, also help improving the air-tightness problem of capacitor body; Thereby can overcome in the prior art that encapsulation pressure is big, easy damaged capacitor body and easily cause short circuit and the excessive defective of leakage current, with realize that air-tightness is good, encapsulation pressure is low, not easy damaged capacitor body and the advantage that is difficult for causing short circuit and leakage current.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the cutaway view of solid electrolytic capacitor in the prior art;
Fig. 2 is the structural representation of the cutaway view of the capacitor assembly of solid electrolytic capacitor in the prior art;
Fig. 3 is the structural representation one of the cutaway view of solid electrolytic capacitor body according to the present invention;
Fig. 4 is the structural representation two of the cutaway view of solid electrolytic capacitor according to the present invention;
Fig. 5 is the structural representation of the cutaway view of the capacitor assembly of solid electrolytic capacitor body according to the present invention;
Fig. 6 is the structural representation three of the cutaway view of solid electrolytic capacitor according to the present invention;
Fig. 7 is the structural representation four of the cutaway view of solid electrolytic capacitor according to the present invention.
In conjunction with the accompanying drawings, the Reference numeral of primary clustering is as follows in the embodiment of the invention:
The 30-solid electrolytic capacitor; The 32-anode terminal; The 33-cathode terminal; 34-synthetic resin; The airtight protective layer of 341-; 35-has a common boundary; The 36-capacitor assembly; The 361-metallic conductor; 362-dielectric medium oxide-film; The 363-cathode layer; The 363a-solid electrolyte layer; The 363b-carbon-coating; 363c-silver coating layer; The 367-anode portion; The 368-negative pole part; The 50-elargol.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Embodiment one
According to the embodiment of the invention, provide a kind of protective device of solid electrolytic capacitor body.As shown in Figure 3-Figure 5, present embodiment comprises solid electrolytic capacitor 30.Wherein, solid electrolytic capacitor 30 comprises the multi-plate condenser assembly 36 that lamination is provided with, and multi-plate condenser assembly 36 laminations are arranged on anode terminal 32 and the cathode terminal 33; Utilize encapsulation process, adopt synthetic resin 34 encapsulating materials such as grade, will encapsulate fixing by the capacitor body that multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33 constitute.
Wherein, in the process that encapsulation is fixed, at first, on the capacitor body that constitutes by multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33, apply encapsulating materials such as one or more layers of insulating cement, behind the airtight protective layer 341 of the stiff formation of insulating cement (as shown in Figure 3); Secondly, adopt synthetic resin 34 encapsulating materials such as grade, will encapsulate parcel (as shown in Figure 4) by multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33.Like this, see through the effect of airtight protective layer 341, can reduce encapsulation pressure, when avoiding encapsulating encapsulating material to the pressure of capacitor body excessive and damage capacitor body, thereby avoid causing problems such as short circuit and/or leakage current be excessive; Simultaneously, also help improving the problems such as air-tightness of capacitor body.
In the above-described embodiments, as shown in Figure 4 and Figure 5, in multi-plate condenser assembly 36, metallic conductor 361 is an anode bodies, is formed with dielectric medium oxide-film 362 and cathode layer 363 on the surface of metallic conductor 361; Cathode layer 363 comprises that solid electrolyte layer 363a, carbon-coating 363b and the silver coating layer 363c by the electric conductive polymer formation of polythiophene system (polythiophene) constituted; On dielectric medium oxide-film 362, the part that is formed with cathode layer 363 is a negative pole part 368, and the part that is not formed with cathode layer 363 is an anode portion 367; Like this, in multi-plate condenser assembly 36, the anode portion 367 of neighboring capacitors assembly 36 is welded fixing each other, and the negative pole part 368 of neighboring capacitors assembly 36 is then fixing by elargol 50 each other, forms laminated solid electrolytic condenser 30.
In every chip capacitor device assembly 36 manufacture processes, at first, can in the aqueous solution of the adipic acid (adipic acid) of predetermined concentration etc., change into processing to metallic conductors such as aluminium foils, make metallic conductor form the dielectric medium oxide-film 362 that constitutes by metal oxide with predetermined voltage; Secondly, metallic conductors such as aforementioned aluminium foil are immersed in by 3,4-second dioxy support thiophene, the P-toluenesulfonic acid is ferrous and the 1-butanols constitutes mixed liquor are till the precalculated position, and on dielectric medium oxide-film 362, overlap by chemical oxidation, form 3 of electroconductive polymer polymer, 4-second dioxy support thiophene constitutes solid electrolyte layer 363a; Then, on solid electrolyte layer 363a, the coating carbon coating makes carbon coating form carbon-coating 363b; At last, form silver coating layer 363c, produce a slice capacitor assembly 36 on carbon-coating 363b surface.
Embodiment two
Different with the foregoing description is, in the present embodiment, as shown in Figure 6 and Figure 7, solid electrolytic capacitor 30 comprises the multi-plate condenser assembly 36 that lamination is provided with, and multi-plate condenser assembly 36 laminations are arranged on anode terminal 32 and the cathode terminal 33; At the opposite side of anode terminal 32 and cathode terminal 33, the parallel multi-plate condenser assembly 36 that another group lamination setting is installed; Utilize encapsulation process, adopt synthetic resin 34, multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33 are encapsulated fixing, form another group capacitor body.
Wherein, in the process that encapsulation is fixed; at first; on the two group capacitor bodies that constitute by multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33; apply one or more layers of insulating cement, behind the airtight protective layer 341 of the stiff formation of insulating cement (as shown in Figure 6), secondly; adopt synthetic resin 34 encapsulating materials such as grade, will encapsulate parcel (as shown in Figure 7) by multi-plate condenser assembly 36, anode terminal 32 and cathode terminal 33.Like this, see through the effect of airtight protective layer 341, can reduce encapsulation pressure, when avoiding encapsulating encapsulating material to the pressure of capacitor body excessive and damage capacitor body, thereby avoid causing problems such as short circuit and/or leakage current be excessive; Simultaneously, also help improving the problems such as air-tightness of capacitor body.
In the foregoing description one and embodiment two, the airtight protective layer of the capacitor body that is used for being covered can be an insulating cement, also can be various synthetic resin or polymer.
In sum, the protective device of the solid electrolytic capacitor body of various embodiments of the present invention, capacitor body comprises the multi-plate condenser assembly, multi-plate condenser assembly lamination is arranged on anode terminal and the cathode terminal, and the anode portion of every chip capacitor device assembly all is connected with anode terminal, negative pole part all is connected with cathode terminal; Multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; When encapsulating fixedly: on the capacitor body that constitutes by multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement earlier, form airtight protective layer; Adopt encapsulating material again, the capacitor body that applies insulating cement is encapsulated parcel; Like this, see through the successively decrease pressure of encapsulating material of airtight protective layer, in the time of can avoiding encapsulating,, further cause problems such as short circuit and leakage current be excessive owing to the excessive capacitor body that damages of encapsulating material overburden pressure; Simultaneously, also help improving the air-tightness problem of capacitor body; Thereby can overcome in the prior art that encapsulation pressure is big, easy damaged capacitor body and easily cause short circuit and the excessive defective of leakage current, with realize that air-tightness is good, encapsulation pressure is low, easy damaged capacitor body and be difficult for causing short circuit and the excessive advantage of leakage current not.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the protective device of a solid electrolytic capacitor body, comprise the multi-plate condenser assembly that anode terminal, cathode terminal and lamination are provided with, described multi-plate condenser assembly lamination is arranged on anode terminal and the cathode terminal, and the anode portion of every chip capacitor device assembly all is connected with described anode terminal, negative pole part all is connected with cathode terminal; Described multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; It is characterized in that:
The fixing process of described encapsulation is specially: at first, on the capacitor body that is made of multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement, form airtight protective layer; Secondly, adopt described encapsulating material, the capacitor body that applies insulating cement is encapsulated parcel.
2. the protective device of solid electrolytic capacitor body according to claim 1 is characterized in that, described airtight protective layer is a polymer.
3. the protective device of solid electrolytic capacitor body according to claim 1 is characterized in that, described airtight protective layer is a resin.
4. the protective device of solid electrolytic capacitor body according to claim 1 is characterized in that, described airtight protective layer is resin and/or polymer.
5. the protective device of a solid electrolytic capacitor body, comprise the multi-plate condenser assembly that anode terminal, cathode terminal and lamination are provided with, described multi-plate condenser assembly builds up and is arranged on anode terminal and the cathode terminal, and the anode portion of every chip capacitor device assembly all is connected with described anode terminal, negative pole part all is connected with cathode terminal; Described multi-plate condenser assembly, anode terminal and cathode terminal encapsulate fixing by encapsulating materials such as synthetic resin; At the opposite side of described anode terminal and cathode terminal, parallel another group capacitor body that is provided with; It is characterized in that:
The fixing process of described encapsulation is specially: at first, on the capacitor body that is made of described multi-plate condenser assembly, anode terminal and cathode terminal, apply one or more layers of insulating cement, form airtight protective layer; Secondly, adopt described encapsulating material, the capacitor body that applies insulating cement is encapsulated parcel.
6. the protective device of solid electrolytic capacitor body according to claim 5 is characterized in that, in the both sides of described anode terminal and cathode terminal, is respectively equipped with at least one group capacitor body.
7. according to the protective device of claim 5 or 6 described solid electrolytic capacitor bodies, it is characterized in that described airtight protective layer is a polymer.
8. according to the protective device of claim 5 or 6 described solid electrolytic capacitor bodies, it is characterized in that described airtight protective layer is a resin.
9. according to the protective device of claim 5 or 6 described solid electrolytic capacitor bodies, it is characterized in that described airtight protective layer is resin and/or polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223305.8A CN102064025B (en) | 2009-11-17 | 2009-11-17 | Protective device for solid electrolytic capacitor body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910223305.8A CN102064025B (en) | 2009-11-17 | 2009-11-17 | Protective device for solid electrolytic capacitor body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102064025A true CN102064025A (en) | 2011-05-18 |
| CN102064025B CN102064025B (en) | 2014-02-26 |
Family
ID=43999257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910223305.8A Active CN102064025B (en) | 2009-11-17 | 2009-11-17 | Protective device for solid electrolytic capacitor body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102064025B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646520A (en) * | 2011-10-19 | 2012-08-22 | 钰邦电子（无锡）有限公司 | Solid-state electrolytic capacitor with protective structure and manufacturing method thereof |
| CN104081486A (en) * | 2011-12-14 | 2014-10-01 | 凯米特电子公司 | Stack capacitor having high volumetric efficiency |
| CN107731554A (en) * | 2017-09-26 | 2018-02-23 | 华为技术有限公司 | A kind of polymer capacitors and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329950A (en) * | 2008-07-14 | 2008-12-24 | 钰邦电子（无锡）有限公司 | Multilayer superimposition solid electrolytic capacitor |
-
2009
- 2009-11-17 CN CN200910223305.8A patent/CN102064025B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329950A (en) * | 2008-07-14 | 2008-12-24 | 钰邦电子（无锡）有限公司 | Multilayer superimposition solid electrolytic capacitor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646520A (en) * | 2011-10-19 | 2012-08-22 | 钰邦电子（无锡）有限公司 | Solid-state electrolytic capacitor with protective structure and manufacturing method thereof |
| CN104081486A (en) * | 2011-12-14 | 2014-10-01 | 凯米特电子公司 | Stack capacitor having high volumetric efficiency |
| CN104081486B (en) * | 2011-12-14 | 2017-03-15 | 凯米特电子公司 | There is the multilayer capacitor of high volume efficiency |
| CN107731554A (en) * | 2017-09-26 | 2018-02-23 | 华为技术有限公司 | A kind of polymer capacitors and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102064025B (en) | 2014-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4731389B2 (en) | Multilayer solid electrolytic capacitor and manufacturing method thereof | |
| JP2023053310A (en) | Electrolytic capacitor, and method for manufacturing the same | |
| CN102969165A (en) | Solid electrolytic capacitor and method for manufacturing the same | |
| CN104599846A (en) | Chip high-voltage miniature long-life aluminum electrolytic capacitor and manufacturing method thereof | |
| TWI421888B (en) | Stacked capacitor with many product pins | |
| WO2016167157A1 (en) | Power storage device | |
| CN102064025B (en) | Protective device for solid electrolytic capacitor body | |
| TW201616533A (en) | Chip solid electrolytic capacitor and manufacturing method thereof | |
| JP4770750B2 (en) | Solid electrolytic capacitor and manufacturing method thereof | |
| US20160379761A1 (en) | Method for fabricating solid electrolytic capacitors | |
| TW201616534A (en) | Solid electrolytic capacitor with improved metallic anode and method for manufacturing the same | |
| US8373972B2 (en) | Solid electrolytic capacitor having a protective structure and method for manufacturing the same | |
| CN102064022B (en) | Stress absorption device at anode terminal of solid electrolytic capacitor | |
| CN202585134U (en) | Solid electrolytic capacitor possessing protection structure | |
| JP4985571B2 (en) | Electronic component and manufacturing method thereof | |
| CN103400695A (en) | High-reliability non-solid electrolyte all-tantalum capacitor and manufacturing process thereof | |
| CN102646520A (en) | Solid-state electrolytic capacitor with protective structure and manufacturing method thereof | |
| CN201893245U (en) | Sealing structure of solid electrolytic capacitor | |
| CN102117704B (en) | Stack type solid electrolytic capacitor and manufacturing method thereof | |
| JP2005217233A (en) | Solid electrolytic capacitor and its manufacturing method | |
| CN110895995B (en) | Capacitor, capacitor packaging structure and manufacturing method thereof | |
| CN208173427U (en) | Solid electrolytic capacitor | |
| JP2010050218A (en) | Laminated three terminal type solid electrolytic capacitor, and method of manufacturing the same | |
| CN115172062A (en) | High-reliability solid electrolytic capacitor and preparation method thereof | |
| CN203721502U (en) | Coiled-type no-lead solid electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |