CN110517893A - A kind of high voltage bearing solid-state aluminum electrolytic capacitor and preparation method thereof - Google Patents
A kind of high voltage bearing solid-state aluminum electrolytic capacitor and preparation method thereof Download PDFInfo
- Publication number
- CN110517893A CN110517893A CN201910748165.XA CN201910748165A CN110517893A CN 110517893 A CN110517893 A CN 110517893A CN 201910748165 A CN201910748165 A CN 201910748165A CN 110517893 A CN110517893 A CN 110517893A
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- China
- Prior art keywords
- foil
- high pressure
- pressure resistant
- guide pin
- paper
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 49
- 239000003990 capacitor Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000011888 foil Substances 0.000 claims abstract description 95
- 239000010410 layer Substances 0.000 claims abstract description 30
- 229920002799 BoPET Polymers 0.000 claims abstract description 9
- 239000005041 Mylar™ Substances 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000007654 immersion Methods 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000005518 electrochemistry Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 230000007420 reactivation Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007745 plasma electrolytic oxidation reaction Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
-
- 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
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a kind of high voltage bearing solid-state aluminum electrolytic capacitors, including core packet, aluminum hull, rubber stopper, the core packet includes cathode foil, positive guide pin, anode foil, negative guide pin, first electrolytic paper, second electrolytic paper, high pressure resistant paster, the positive guide pin is connect with the cathode foil, the negative guide pin is connect with the anode foil, the high pressure resistant paster is affixed on the cathode foil and the anode foil surface, the high pressure resistant paster includes the conductive layer successively set gradually, adhesive-layer, mylar film, layers of two-sided and off-style paper layer, the cathode foil for posting high pressure resistant paster, first electrolytic paper, the anode foil for posting high pressure resistant paster, immersion electrolyte forms the core packet after second electrolytic paper stacks gradually winding, the invention also discloses preparation methods.It is an advantage of the invention that increasing the distance between cathode and aluminium core of solid-state aluminum electrolytic capacitor, the probability of charge-conduction to cathode is reduced, reduces the short-circuit risks of the solid-state aluminum electrolytic capacitor.
Description
Technical field
The present invention relates to solid-state aluminum electrolytic capacitor more particularly to a kind of high voltage bearing solid-state aluminum electrolytic capacitors and its system
Preparation Method.
Background technique
Solid-state aluminum electrolytic capacitor is to use different dielectrics from ordinary liquid aluminum electrolytic capacitor maximum differential
Material, liquid aluminium capacitors dielectrics are electrolyte, and the dielectric material of solid aluminum capacitors is then electroconductive polymer material
Material.Solid-state aluminum electrolytic capacitor can continue steady operation in the high temperature environment, can be direct using solid-state aluminum electrolytic capacitor
Promote mainboard performance.Simultaneously as the stabilization impedance of its wide temperature range, is suitable for power filter.It can effectively be provided surely
Fixed abundant power supply, it is particularly important in overclocking.The service life of solid-state aluminum electrolytic capacitor is more than 50 years, with liquid aluminium electroloysis
Capacitor is compared, and service life is obviously prolonged.The ESR of solid-state alminium electrolytic condenser is very low, while there is very small energy to consume
It dissipates.The extremely low ESR characteristic of solid capacitor can fully absorb power supply line in circuit under the conditions of high temperature, high frequency and high-power operation
Between the high-amplitude threshold voltage that generates, prevent its interference to system.
But the dielectric layer of cathode foil is alumina layer in the prior art, alumina layer cannot be high pressure resistant, has limited to solid-state
The use scope of aluminium electrolutic capacitor.
Summary of the invention
Goal of the invention: in view of the above-mentioned problems, the object of the present invention is to provide a kind of high voltage bearing solid-state aluminum electrolytic capacitors
And preparation method thereof, guarantee solid-state aluminum electrolytic capacitor trouble free service in high pressure.
Technical solution:
A kind of high voltage bearing solid-state aluminum electrolytic capacitor, including core packet, aluminum hull, rubber stopper, the core packet include cathode foil,
Positive guide pin, anode foil, negative guide pin, the first electrolytic paper, the second electrolytic paper, high pressure resistant paster, the positive guide pin and the cathode foil
Connection, the negative guide pin are connect with the anode foil, and the high pressure resistant paster is affixed on the cathode foil and the anode foil surface,
The high pressure resistant paster includes the conductive layer successively set gradually, adhesive-layer, mylar film, layers of two-sided and off-style paper layer, described
Post cathode foil, first electrolytic paper, the anode foil for posting high pressure resistant paster, second electrolysis of high pressure resistant paster
Immersion electrolyte forms the core packet after paper stacks gradually winding, and loaded in the aluminum hull, the rubber stopper is worn for the core encapsulating
The positive guide pin and the negative guide pin post package are crossed in the aluminum hull side.
Preferably, the high pressure resistant paster is posted on the cathode foil and the anode foil two sides.
Preferably, the cathode foil for posting high pressure resistant paster, first electrolytic paper, described post high pressure resistant paster
Anode foil, the length of second electrolytic paper successively increase.
Preferably, the cathode foil forms oxidation film by electrochemistry reactivation using aluminium foil production forming, cathode foil surface,
Oxide thickness is 0.2-0.5 μm.
Preferably, the anode foil using aluminium foil production forming, anode foil surface by micro-arc oxidation formation ceramic foil or
Conductive carbon foil is formed by carbon coating foil slurry.
Preferably, the core packet is fixed by core packet fixation adhesive tape.
Preferably, the core packet fixation adhesive tape is made of strip polyimides material.
The invention also discloses a kind of preparation method of high voltage bearing solid-state aluminum electrolytic capacitor described in claim 1,
The following steps are included:
Step 1: cathode foil being fixedly connected with positive guide pin, anode foil is fixedly connected with negative guide pin;
Step 2: sticking high pressure resistant paster on the surface of cathode foil, stick high pressure resistant paster on the surface of anode foil;
Step 3: by the cathode foil for posting high pressure resistant paster, the first electrolytic paper, the anode foil for posting high pressure resistant paster and
Two electrolytic papers are overlapped after coiling impregnates electrolyte from inside to outside and form core packet;
Step 4: by core encapsulation in aluminum hull, blend rubber plug is sealed after passing through positive guide pin and negative guide pin.
Preferably, the high pressure resistant paster includes the conductive layer successively set gradually, adhesive-layer, mylar film, layers of two-sided
And off-style paper layer.
Preferably, the high pressure resistant paster is posted on the cathode foil and the anode foil two sides.
The utility model has the advantages that compared with prior art, it is an advantage of the invention that being equipped with resistance to height on the surface of cathode foil and anode foil
Paper is overlayed, high pressure paster is successively to set gradually conductive layer, adhesive-layer, mylar film, layers of two-sided and off-style paper layer, increases this
The distance between the cathode of solid-state aluminum electrolytic capacitor and aluminium core, so that the probability of charge-conduction to cathode is reduced, so as to
The short-circuit risks of the solid-state aluminum electrolytic capacitor are reduced, while also having the characteristic of Low dark curient, structure is simple, and it is at low cost, it is easy to make
Make, it is easy to use.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the cathode foil structural schematic diagram for posting high pressure resistant paster;
Fig. 3 is the cathode foil for posting high pressure resistant paster, the first electrolytic paper, the anode foil for posting high pressure resistant paster, the second electricity
Solve the stacking schematic diagram of paper.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
As shown in Figure 1-3, a kind of high voltage bearing solid-state aluminum electrolytic capacitor, including core packet 1, aluminum hull 2, rubber stopper 3, core packet
1 includes cathode foil 4, positive guide pin 5, anode foil 6, negative guide pin 7, the first electrolytic paper 8, the second electrolytic paper 9, high pressure resistant paster 10, just
Guide pin 5 is connect with cathode foil 4, and negative guide pin 7 is connect with anode foil 6, and high pressure resistant paster 10 is affixed on 6 surface of cathode foil 4 and anode foil,
High pressure resistant paster 10 includes conductive layer 11, adhesive-layer 12, mylar film 13, layers of two-sided 14 and the off-style paper layer successively set gradually
15, post cathode foil 4, the first electrolytic paper 8, the anode foil 6 for posting high pressure resistant paster 10, the second electrolytic paper of high pressure resistant paster 10
9 stack gradually and impregnate electrolyte after winding and form core packet 1, and core packet 1 is packaged in aluminum hull 2, and rubber stopper 3 passes through positive guide pin 5 and negative
7 post package of guide pin is in 2 side of aluminum hull.High pressure resistant paster 10 is posted on cathode foil 4 and 6 two sides of anode foil.Post high pressure resistant paster
10 cathode foil 4, the first electrolytic paper 8, the anode foil 6 for posting high pressure resistant paster 10, the length of the second electrolytic paper 9 successively increase.
For cathode foil 4 using aluminium foil production forming, 4 surface of cathode foil forms oxidation film, oxide thickness 0.2- by electrochemistry reactivation
0.5μm.Using aluminium foil production forming, 2 surface of anode foil forms ceramic foil by differential arc oxidation or passes through carbon coating foil anode foil 6
Slurry forms conductive carbon foil.Core packet 1 is fixed by core packet fixation adhesive tape.Core packet fixation adhesive tape is by strip polyimides material system
At.
A kind of preparation method of the high voltage bearing solid-state aluminum electrolytic capacitor of claim 1, comprising the following steps:
Step 1: cathode foil 4 being fixedly connected with positive guide pin 5, anode foil 6 is fixedly connected with negative guide pin 7;
Step 2: sticking high pressure resistant paster 10 on the two sides of cathode foil 4, stick high pressure resistant paster on the surface of anode foil 6
10;High pressure resistant paster 10 includes the conductive layer 11 successively set gradually, adhesive-layer 12, mylar film 13, layers of two-sided 14 and release
Paper layer 15.
Step 3: by the cathode foil 4 for posting high pressure resistant paster 10, the first electrolytic paper 8, the cathode for posting high pressure resistant paster 10
Foil 6 and the second electrolytic paper 9 are overlapped after coiling impregnates electrolyte from inside to outside and form core packet 1;
Step 4: core packet 1 being encapsulated in aluminum hull 2, blend rubber plug 3 is sealed after passing through positive guide pin 5 and negative guide pin 7.
The present invention is equipped with high pressure resistant paster on the surface of cathode foil and anode foil, and high pressure paster is successively to set gradually conduction
Layer, adhesive-layer, mylar film, layers of two-sided and off-style paper layer, increase between the cathode of solid-state aluminum electrolytic capacitor and aluminium core
Distance, so that the probability of charge-conduction to cathode is reduced, so as to reduce the short circuit of the takeup type solid-state aluminum electrolytic capacitor
Risk.
Claims (10)
1. a kind of high voltage bearing solid-state aluminum electrolytic capacitor, it is characterised in that: including core packet (1), aluminum hull (2), rubber stopper (3),
The core packet (1) includes cathode foil (4), positive guide pin (5), anode foil (6), negative guide pin (7), the first electrolytic paper (8), the second electrolysis
Paper (9), high pressure resistant paster (10), the positive guide pin (5) connect with the cathode foil (4), the negative guide pin (7) and the cathode
Foil (6) connection, the high pressure resistant paster (10) are affixed on the cathode foil (4) and the anode foil (6) surface, the high pressure resistant patch
Paper (10) includes the conductive layer (11) successively set gradually, adhesive-layer (12), mylar film (13), layers of two-sided (14) and release paper
Layer (15), the cathode foil (4) for posting high pressure resistant paster (10), described post high pressure resistant paster at first electrolytic paper (8)
(10) immersion electrolyte forms the core packet (1) after anode foil (6), second electrolytic paper (9) stack gradually winding, described
Core packet (1) is packaged in the aluminum hull (2), and the rubber stopper (3) passes through the positive guide pin (5) and the negative guide pin (7) seals afterwards
Loaded on the aluminum hull (2) side.
2. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that: the cathode foil (4) and
Post the high pressure resistant paster (10) in anode foil (6) two sides.
3. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that: described to post high pressure resistant patch
Cathode foil (4), first electrolytic paper (8), the anode foil (6) for posting high pressure resistant paster (10), described of paper (10)
The length of two electrolytic papers (9) successively increases.
4. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that: the cathode foil (4) is adopted
It makes and shapes of aluminium foil, cathode foil (4) surface forms oxidation film by electrochemistry reactivation, and oxide thickness is 0.2-0.5 μm.
5. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that: the anode foil (6) is adopted
It makes and shapes of aluminium foil, anode foil (2) surface forms ceramic foil by differential arc oxidation or forms conduction by carbon coating foil slurry
Carbon foil.
6. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that: the core packet (1) passes through
Core packet fixation adhesive tape is fixed.
7. high voltage bearing solid-state aluminum electrolytic capacitor according to claim 5, it is characterised in that: the core packet fixation adhesive tape
It is made of strip polyimides material.
8. a kind of preparation method of high voltage bearing solid-state aluminum electrolytic capacitor described in claim 1, it is characterised in that including with
Lower step:
Step 1: cathode foil (4) being fixedly connected with positive guide pin (5), anode foil (6) is fixedly connected with negative guide pin (7);
Step 2: sticking high pressure resistant paster (10) on the surface of cathode foil (4), stick high pressure resistant paster on the surface of anode foil (6)
(10);
Step 3: by the cathode foil (4) for posting high pressure resistant paster (10), the first electrolytic paper (8), posting high pressure resistant paster (10)
Anode foil (6) and the second electrolytic paper (9) are overlapped after coiling impregnates electrolyte from inside to outside and form core packet (1);
Step 4: core packet (1) being encapsulated in aluminum hull (2), blend rubber plug (3) passes through positive guide pin (5) and negative guide pin (7) is laggard
Row sealing.
9. the preparation method of high voltage bearing solid-state aluminum electrolytic capacitor according to claim 8, it is characterised in that: described resistance to
High pressure paster (10) include the conductive layer (11) successively set gradually, adhesive-layer (12), mylar film (13), layers of two-sided (14) and
Off-style paper layer (15).
10. the preparation method of high voltage bearing solid-state aluminum electrolytic capacitor according to claim 8, it is characterised in that: described
The high pressure resistant paster (10) is posted on cathode foil (4) and the anode foil (6) two sides.
Priority Applications (1)
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CN201910748165.XA CN110517893A (en) | 2019-08-14 | 2019-08-14 | A kind of high voltage bearing solid-state aluminum electrolytic capacitor and preparation method thereof |
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CN201910748165.XA CN110517893A (en) | 2019-08-14 | 2019-08-14 | A kind of high voltage bearing solid-state aluminum electrolytic capacitor and preparation method thereof |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112509814A (en) * | 2020-11-11 | 2021-03-16 | 上海永铭电子股份有限公司 | High-temperature and high-humidity resistant laminated aluminum solid-state capacitor and preparation method thereof |
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CN206271559U (en) * | 2016-10-31 | 2017-06-20 | 丰宾电子(深圳)有限公司 | A kind of takeup type solid-state aluminum electrolytic capacitor |
TWI598909B (en) * | 2016-12-12 | 2017-09-11 | 鈺邦科技股份有限公司 | Low leakage electrolytic capacitor |
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2019
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KR100773795B1 (en) * | 2006-09-25 | 2007-11-06 | 주식회사 디지털텍 | Winding type electrolytic condenser using conductive polymer and method for manufacturing the same |
CN201838461U (en) * | 2010-08-26 | 2011-05-18 | 立隆电子工业股份有限公司 | High-tension winding aluminium solid capacitor |
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Cited By (2)
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CN112509814A (en) * | 2020-11-11 | 2021-03-16 | 上海永铭电子股份有限公司 | High-temperature and high-humidity resistant laminated aluminum solid-state capacitor and preparation method thereof |
CN112509814B (en) * | 2020-11-11 | 2022-05-31 | 上海永铭电子股份有限公司 | High-temperature and high-humidity resistant laminated aluminum solid-state capacitor and preparation method thereof |
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