CN108109841A - Stacked capacitor and manufacturing method - Google Patents
Stacked capacitor and manufacturing method Download PDFInfo
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- CN108109841A CN108109841A CN201711151491.XA CN201711151491A CN108109841A CN 108109841 A CN108109841 A CN 108109841A CN 201711151491 A CN201711151491 A CN 201711151491A CN 108109841 A CN108109841 A CN 108109841A
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- aluminium foil
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- 239000003990 capacitor Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000178 monomer Substances 0.000 claims abstract description 65
- 239000005030 aluminium foil Substances 0.000 claims abstract description 45
- 238000003466 welding Methods 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 36
- 229910052782 aluminium Inorganic materials 0.000 claims description 36
- 239000004411 aluminium Substances 0.000 claims description 33
- 238000003475 lamination Methods 0.000 claims description 24
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 18
- 229910052709 silver Inorganic materials 0.000 claims description 18
- 239000004332 silver Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000002386 leaching Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000007784 solid electrolyte Substances 0.000 claims description 9
- 229920001940 conductive polymer Polymers 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 238000007761 roller coating Methods 0.000 claims description 3
- 108090000723 Insulin-Like Growth Factor I Proteins 0.000 claims description 2
- 102000013275 Somatomedins Human genes 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000011888 foil Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a kind of stacked capacitor and manufacturing methods, the anode leading-out terminal and cathode leading-out terminal that the stacked capacitor includes the monomer of multi-disc overlapping and is electrically connected on monomer, every monomer include positive terminal, negative pole end and the shielding tree lace between positive terminal and negative pole end；The negative pole end of each monomer is connected together and is connected with cathode leading-out terminal；The positive terminal of each monomer is connected together and is connected with anode leading-out terminal, the positive terminal of each monomer stretches out the part of shielding tree lace for aluminium foil, aluminium foil is sintering paper tinsel, the welding region for the positive terminal of each monomer and anode leading-out terminal to be welded together is provided on sintering paper tinsel, anode leading-out terminal is electrically connected with welding region.Stacked capacitor provided by the invention and manufacturing method, ESR is small, capacity is big, especially with the obvious advantage in high-voltage product.
Description
Technical field
The present invention relates to capacitance manufacturing field more particularly to stacked capacitor and manufacturing methods.
Background technology
Lamination solid-state aluminum electrolytic capacitor is using the conducting polymer materials with high conductivity as solid electrolyte
Novel slice type electronic element products.It is with volume smaller, performance is more preferable, wide temperature, long-life, high reliability and high-environmental etc. are all
More advantages, suitable for miniaturization of electronic products, high frequency, high speed, highly reliable, high-environmental development trend and SMT
(Surface Mount Technology, surface mounting technology) requirement.
As shown in Figures 1 to 4, using laminar monomer 10 as elementary cell, monomer is divided into existing lamination solid capacitor
Positive terminal 1, negative pole end 3 and between above-mentioned 2 part of shielding tree lace between the two, positive terminal 1 includes valve metal porous foil 7
（Metallic aluminium）And the dielectric film 8 formed on 7 surface of valve metal porous foil（Alundum (Al2O3)）, negative pole end 3 include valve metal
Porous foil（Metallic aluminium）7 and valve metal porous foil surface formed dielectric film 8（Alundum (Al2O3)）, in dielectric film 8
Surface forms solid electrolyte 5（PEDOT）, the current collection layer that is formed on solid electrolyte（Carbon-coating 4 and silver layer 6）.By a list
The positive terminal 1 of body welds together with anode leading-out terminal 20, negative pole end 3 and 30 lamination adhesive of cathode leading-out terminal of monomer 10
One layer of monolithic laminated body is formed together, on the basis of above-mentioned one layer of monolithic laminated body, can be stacked and multiple is monolithically formed multilayer layer
Stack.Laminated body is surrounded by thermosetting epoxy resin plastics and is packaged to form a lamination solid capacitor with this.Its
In, the center of the lamination solid capacitor upper and lower surface of above-mentioned anode leading-out terminal 20 and cathode leading-out terminal 30 in encapsulation, and
Lamination solid capacitor lower surface is fitted in by bending twice.
As shown in Fig. 2, the product structure of existing lamination solid capacitor is simple, positive and negative anodes leading-out terminal is in following table on capacitance
The middle position in face and bending fitting and capacitance lower surface afterwards twice.Between the positive terminal 1 of each monomer 10 and positive terminal 1, with
And welded together between positive terminal 1 and anode leading-out terminal 20 so that circuit turn-on.The anode end surfaces of monomer 10 are
Alundum (Al2O3), centre are aluminium core.If Fig. 3 shows, in the welding process, due to the presence of alundum (Al2O3), cause monomer 10 it
Between aluminium core be difficult to contact or contact not exclusively, so as to which resistance herein is larger.And voltage（Anode aluminium foil is pressure-resistant ＞ 51V）More
High product, the di-aluminium trioxide film of monolithic surface is thicker, does not almost weld or cannot weld more between monolithic
Piece.So allow for that 40 resistance of existing lamination solid capacitor weld are big, capacity is small, are difficult to break through high pressure bottleneck.
Therefore, weld resistance existing for existing lamination solid capacitor candle is big, capacity is small and it is resistance to force down, be one and urgently solve
Certainly the problem of.
The content of the invention
Stacked capacitor proposed by the present invention and manufacturing method, it is intended to solve the existing existing welding of lamination solid capacitor candle
Place's resistance is big, capacity is small and resistance to the technical issues of forcing down.
According to an aspect of the present invention, a kind of stacked capacitor is provided, monomer and electrical connection including multi-disc overlapping
In anode leading-out terminal and cathode leading-out terminal on monomer, every monomer include positive terminal, negative pole end and positioned at positive terminal and
Shielding tree lace between negative pole end；The negative pole end of each monomer is connected together and is connected with cathode leading-out terminal；Each monomer
Positive terminal be connected together and be connected with anode leading-out terminal, the positive terminal of each monomer stretches out the portion of shielding tree lace for aluminium foil
Point, aluminium foil is sintering paper tinsel, is sintered on paper tinsel and is provided with to weld together the positive terminal of each monomer and anode leading-out terminal
Welding region, anode leading-out terminal is electrically connected with welding region.
Further, the negative pole end of monolithic monomer and cathode leading-out terminal one layer of monolithic laminated body of composition stacked together,
Multiple monolithic laminated bodies are laminated in forms multi-layer laminate together.
Further, the outer surface of multi-disc monomer is packaged with insulating resin, to form lamination solid capacitor；Anode exit
Son and cathode leading-out terminal are stretched out outside insulating resin, and are passed through insulating resin and be isolated.
Further, the negative pole end of every monomer includes the deielectric-coating, solid electrolyte, carbon that are coated on aluminium foil surface successively
Slurry and silver paste.
Further, aluminium foil uses porous aluminium foil.
According to another aspect of the present invention, a kind of stacked capacitor manufacturing method is also provided, is comprised the following steps：
Sintering：Aluminium powder or aluminium paste are coated on aluminium sheet, and reserves a block welding region in advance in one end of aluminium sheet and is not coated by aluminium
Aluminium powder or aluminium paste are sintered on aluminium sheet by powder or aluminium paste under vacuum environment；
Chemical conversion：The aluminium foil sintered is subjected to chemical conversion and arrives predetermined voltage, makes somatomedin film on aluminium foil, wherein, reserved welding
Region is not involved in being melted into；
It cuts：Aluminium foil after chemical conversion is cut into preliminary dimension；
Group row：The welding region that the aluminium foil cut is reserved is welded on metal strip, and roller coating shielding tree lace；
Chemical conversion：The aluminium foil that group is sequenced repairs cutting edge, and shielding tree lace region below is immersed forming liquid, and is powered so that medium
Film is grown；
Polymerization：Shielding tree lace region below is immersed in oxidant and monomer fluid respectively, controls temperature and humidity, Xun Huan is predetermined
After number, make conductive polymer polymer growth inside deielectric-coating surface hole defect；
Soak carbon：The shielding tree lace region below for the aluminium foil having polymerize is immersed in carbon paddle so that carbon paddle is coated on conductive polymer
On polymer；
It is dry：The aluminium foil good to leaching carbon is dried at a predetermined temperature；
Leaching silver：Shielding tree lace region below is immersed in silver paste so that silver slurry layer is coated on carbon-coating, forms monomer；
It is dry：The monomer good to leaching silver is dried at a predetermined temperature；
Lamination：Dried monomer from metal strip is cut down, then is welded together with lead frame, forms laminated body；
Plastic packaging：The good laminated body of lamination is packaged with insulating resin.
Having the beneficial effect that acquired by the present invention：
Stacked capacitor provided by the invention and manufacturing method compared with prior art, tradition corrosion chemical conversion are replaced with sintering paper tinsel
Aluminium foil prepares lamination solid-state capacitor, welding region is reserved on aluminium foil, this region is caused not grow alundum (Al2O3) Jie
Plasma membrane, then this anode exit is welded together with the welding region.Final finished.Stacked capacitor provided by the invention and
Manufacturing method, ESR is small, capacity is big, especially with the obvious advantage in high-voltage product.
Description of the drawings
Fig. 1 is the structure diagram of the monomer of existing stacked capacitor；
Fig. 2 is the diagrammatic cross-section of monomer described in Fig. 1；
Fig. 3 is the diagrammatic cross-section of existing stacked capacitor；
Fig. 4 is the dimensional structure diagram of existing stacked capacitor；
Fig. 5 is the laminated construction schematic diagram of invention stacked capacitor；
Fig. 6 is the diagrammatic cross-section of the monomer of invention stacked capacitor.
Drawing reference numeral explanation：
10th, monomer；20th, anode leading-out terminal；30th, cathode leading-out terminal；11st, positive terminal；12nd, negative pole end；13rd, tree lace is shielded；
111st, aluminium foil；112nd, welding region；121st, deielectric-coating；122nd, solid electrolyte；123rd, carbon is starched；124th, silver paste.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 5 and Figure 6, first embodiment of the invention proposes a kind of stacked capacitor, includes the monomer of multi-disc overlapping
10 and the anode leading-out terminal 20 and cathode leading-out terminal 30 that are electrically connected on monomer 10, every monomer 10 include positive terminal
11st, negative pole end 12 and the shielding tree lace 13 between positive terminal 11 and negative pole end 12；The negative pole end 12 of each monomer 10 is connected
It is connected together and with cathode leading-out terminal 30；The positive terminal 11 of each monomer 10 be connected together and with anode leading-out terminal 20
Connection, the positive terminal 11 of each monomer 10 stretch out the part of shielding tree lace 13 for aluminium foil, and aluminium foil is sintering paper tinsel, is sintered on paper tinsel and sets
The welding region 112 for welding together the positive terminal 11 of each monomer 10 and anode leading-out terminal 20 is useful for, anode is drawn
Terminal 20 is electrically connected with welding region 112.
Stacked capacitor provided in this embodiment compared with prior art, tradition corrosion formed aluminum foil is replaced with sintering paper tinsel
Lamination solid-state capacitor is prepared, welding region is reserved on aluminium foil, this region is caused not grow alundum (Al2O3) medium
Film, then this anode exit is welded together with the welding region.Final finished.Stacked capacitor provided in this embodiment,
ESR is small, capacity is big, especially with the obvious advantage in high-voltage product.
Preferably, as shown in Figure 5 and Figure 6, stacked capacitor provided in this embodiment, the negative pole end 12 of monolithic monomer 10 with
The one layer of monolithic laminated body of composition stacked together of cathode leading-out terminal 30, multiple monolithic laminated bodies are laminated in forms multilayer layer together
Stack.Stacked capacitor using laminar monomer 10 as elementary cell, monomer be divided into positive terminal 11, negative pole end 12 and between
Above-mentioned 13 part of shielding tree lace between the two, positive terminal 11 include aluminium foil 111（Metallic aluminium）And it is formed on 111 surface of aluminium foil
Welding region 112, negative pole end 12 include aluminium foil 111 and 111 surface of aluminium foil formed deielectric-coating 121（Three oxidations two
Aluminium）, 121 surface of deielectric-coating formed solid electrolyte 122（PEDOT）, the current collection layer that is formed on solid electrolyte 122（Carbon
Slurry 123 and silver paste 124）.In the present embodiment, the welding region 112 of the positive terminal 11 of a monomer is directly drawn with anode
Terminal 20 welds together, and the negative pole end 12 of monomer forms one layer of monolithic together with 30 lamination adhesive of cathode leading-out terminal and is stacked
Body on the basis of above-mentioned one layer of monolithic laminated body, can be stacked and multiple be monolithically formed multi-layer laminate.Preferably, in the present embodiment
In, aluminium foil uses porous aluminium foil.
Further, see Fig. 5, stacked capacitor provided in this embodiment, the outer surface of multi-disc monomer 10 is packaged with absolutely
Edge resin, to form lamination solid capacitor；Anode leading-out terminal 20 and cathode leading-out terminal 30 are stretched out outside insulating resin, and are passed through
Insulating resin is isolated.In the present embodiment, laminated body by thermosetting epoxy resin plastics surround and with this be packaged so as to
Form a lamination solid capacitor.
Preferably, referring to Fig. 5 and Fig. 6, stacked capacitor provided in this embodiment, the negative pole end 12 of every monomer 10 includes
Deielectric-coating 121, solid electrolyte 122, the carbon slurry 123 of aluminium foil surface and silver paste 124 are coated on successively.
Preferably, the present embodiment also provides a kind of stacked capacitor manufacturing method, comprises the following steps：
Step S100, it is sintered：Aluminium powder or aluminium paste are coated on aluminium sheet, and reserve a block welding region in advance in one end of aluminium sheet
Aluminium powder or aluminium paste are not coated by, aluminium powder or aluminium paste are sintered on aluminium sheet under vacuum environment.
Step S200, it is melted into：The aluminium foil sintered is subjected to chemical conversion to predetermined voltage, makes to grow alundum (Al2O3) on aluminium foil
Deielectric-coating, wherein, reserved welding region is not involved in being melted into.
Step S300, cut：Aluminium foil after chemical conversion is cut into preliminary dimension.
Step S400, group row：The welding region that the monomer cut is reserved is welded on metal strip, and roller coating shielding glue
Line；
Step S500, it is melted into：The aluminium foil that group is sequenced repairs cutting edge, and shielding tree lace region below is immersed forming liquid, and is led to
Electricity is so that deielectric-coating growth；
Step S600, it polymerize：Shielding tree lace region below is immersed in oxidant and monomer fluid respectively, controls temperature and wet
Degree after cycling pre-determined number, makes conductive polymer polymer growth inside deielectric-coating surface hole defect.
Step S700, carbon is soaked：The shielding tree lace region below for the aluminium foil having polymerize is immersed in carbon paddle so that carbon paddle coats
On conductive polymer polymer.
Step S800, drying：The aluminium foil good to leaching carbon is dried at a predetermined temperature.
Step S900, leaching silver：Shielding tree lace region below is immersed in silver paste so that silver slurry layer is coated on carbon-coating, shape
Into monomer.
Step S1000, drying：The monomer good to leaching silver is dried at a predetermined temperature.
Step S1100, lamination：Dried monomer from metal strip is cut down, then is welded together with lead frame,
Form laminated body.
Step S1200, plastic packaging：The good laminated body of lamination is packaged with insulating resin.
As shown in table 1, below by taking 2v330uF products as an example, by stacked capacitor provided by the invention and existing lamination electricity
The ESR of container（Equivalent Series Resistance, equivalent series resistance）It is compared, the following institute of correction data
Show：
| Conventional structure | The present invention | |
| ESR(mΩ) | ESR(mΩ) | |
| 1 | 3.89 | 3.05 |
| 2 | 3.56 | 3.15 |
| 3 | 3.45 | 3.21 |
| 4 | 3.68 | 3.15 |
| 5 | 3.48 | 3.3 |
| 6 | 3.21 | 3.1 |
| 7 | 3.54 | 3.15 |
| 8 | 3.3 | 3.08 |
| 9 | 3.4 | 3.11 |
| 10 | 3.56 | 2.99 |
| Average value | 3.507 | 3.129 |
Table 1
The stacked capacitor that the present embodiment is made by stacked capacitor manufacturing method, the positive terminal of monolithic is without three oxidations two
The presence of aluminium deielectric-coating, Product jointing is good, and weld resistance is very small, and finished product ESR is greatly reduced than conventional laminated body, capacitor；
Sintering aluminium foil possesses higher specific volume than conventional corrosion formed aluminum foil, and can weld multiple monolithics, makes same appearance and size product
Capacity can also do more；Its advantage is further apparent in high pressure laminating capacitor.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1. a kind of stacked capacitor includes the monomer of multi-disc overlapping（10）And it is electrically connected to the monomer（10）On anode
Leading-out terminal（20）With cathode leading-out terminal（30）, the every monomer（10）Including positive terminal（11）, negative pole end（12）And position
In the positive terminal（11）With the negative pole end（12）Between shielding tree lace（13）；Each monomer（10）Negative pole end
（12）Be connected together and with the cathode leading-out terminal（30）Connection；Each monomer（10）Positive terminal（11）Mutually it is connected in
Together and with the anode leading-out terminal（20）Connection, which is characterized in that each monomer（10）Positive terminal（11）For aluminium
Paper tinsel（111）Stretch out the shielding tree lace（13）Part, the aluminium foil（111）To be sintered paper tinsel, set on the sintering paper tinsel useful
In by each monomer（10）Positive terminal（11）With the anode leading-out terminal（20）The welding region welded together
（112）, the anode leading-out terminal（20）With the welding region（112）Electrical connection.
2. stacked capacitor according to claim 1, which is characterized in that
Monomer described in monolithic（10）Negative pole end（12）With the cathode leading-out terminal（30）One layer of monolithic of composition stacked together
Laminated body, multiple monolithic laminated bodies are laminated in forms multi-layer laminate together.
3. stacked capacitor according to claim 2, which is characterized in that
Monomer described in multi-disc（10）Outer surface be packaged with insulating resin, to form lamination solid capacitor；The anode exit
Son（20）With the cathode leading-out terminal（30）It stretches out outside the insulating resin, and passes through the insulating resin and be isolated.
4. stacked capacitor according to claim 3, which is characterized in that
The every monomer（10）Negative pole end（12）Including being coated on the aluminium foil successively（111）The deielectric-coating on surface（121）、
Solid electrolyte（122）, carbon slurry（123）And silver paste（124）.
5. stacked capacitor according to claim 4, which is characterized in that
The aluminium foil（111）Using porous aluminium foil.
6. a kind of stacked capacitor manufacturing method, which is characterized in that comprise the following steps：
Sintering：Aluminium powder or aluminium paste are coated on aluminium sheet, and reserves a block welding region in advance in one end of the aluminium sheet and does not apply
Aluminium powder or aluminium paste are covered, the aluminium powder or the aluminium paste are sintered on the aluminium sheet under vacuum environment；
Chemical conversion：The aluminium foil sintered is subjected to chemical conversion and arrives predetermined voltage, makes somatomedin film on the aluminium foil, wherein, it is reserved
Welding region is not involved in being melted into；
It cuts：Aluminium foil after chemical conversion is cut into preliminary dimension；
Group row：The welding region that the monomer cut is reserved is welded on metal strip, and roller coating shielding tree lace；
Chemical conversion：The aluminium foil that group is sequenced repairs cutting edge, and the shielding tree lace region below is immersed forming liquid, and is powered and causes
Deielectric-coating is grown；
Polymerization：Shielding tree lace region below is immersed in oxidant and monomer fluid respectively, controls temperature and humidity, Xun Huan is predetermined
After number, make conductive polymer polymer growth inside deielectric-coating surface hole defect；
Soak carbon：The shielding tree lace region below for the aluminium foil having polymerize is immersed in carbon paddle so that the carbon paddle is coated on institute
It states on conductive polymer polymer；
It is dry：The aluminium foil good to leaching carbon is dried at a predetermined temperature；
Leaching silver：Shielding tree lace region below is immersed in silver paste so that silver slurry layer is coated on carbon-coating, forms monomer；
It is dry：The monomer good to leaching silver is dried at a predetermined temperature；
Lamination：Dried monomer from the metal strip is cut down, then is welded together with lead frame, is formed and is stacked
Body；
Plastic packaging：The good laminated body of lamination is packaged with insulating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711151491.XA CN108109841A (en) | 2017-11-18 | 2017-11-18 | Stacked capacitor and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711151491.XA CN108109841A (en) | 2017-11-18 | 2017-11-18 | Stacked capacitor and manufacturing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172403A (en) * | 2017-12-19 | 2018-06-15 | 湖南艾华集团股份有限公司 | Novel powder aluminium positive electrode and aluminium electrolutic capacitor preparation method |
| CN109216025A (en) * | 2018-08-27 | 2019-01-15 | 丰宾电子（深圳）有限公司 | A kind of vertical stacked capacitor |
| CN113658805A (en) * | 2021-08-31 | 2021-11-16 | 湖南艾华集团股份有限公司 | High-humidity-resistant laminated aluminum electrolytic capacitor and manufacturing method thereof |
| CN114709081A (en) * | 2022-04-12 | 2022-07-05 | 南通飞泰电子科技有限公司 | High-capacity low-voltage chip type laminated aluminum capacitor and preparation method thereof |
| CN115101338A (en) * | 2022-04-18 | 2022-09-23 | 肇庆绿宝石电子科技股份有限公司 | Manufacturing method of laminated capacitor capable of being pasted on two sides |
| 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 |
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| CN108172403A (en) * | 2017-12-19 | 2018-06-15 | 湖南艾华集团股份有限公司 | Novel powder aluminium positive electrode and aluminium electrolutic capacitor preparation method |
| CN109216025A (en) * | 2018-08-27 | 2019-01-15 | 丰宾电子（深圳）有限公司 | A kind of vertical stacked capacitor |
| CN113658805A (en) * | 2021-08-31 | 2021-11-16 | 湖南艾华集团股份有限公司 | High-humidity-resistant laminated aluminum electrolytic capacitor and manufacturing method thereof |
| CN114709081A (en) * | 2022-04-12 | 2022-07-05 | 南通飞泰电子科技有限公司 | High-capacity low-voltage chip type laminated aluminum capacitor and preparation method thereof |
| CN115101338A (en) * | 2022-04-18 | 2022-09-23 | 肇庆绿宝石电子科技股份有限公司 | Manufacturing method of laminated capacitor capable of being pasted on two sides |
| 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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