CN108962607A - A kind of impregnated graphite slurry and preparation method thereof - Google Patents
A kind of impregnated graphite slurry and preparation method thereof Download PDFInfo
- Publication number
- CN108962607A CN108962607A CN201710369511.4A CN201710369511A CN108962607A CN 108962607 A CN108962607 A CN 108962607A CN 201710369511 A CN201710369511 A CN 201710369511A CN 108962607 A CN108962607 A CN 108962607A
- Authority
- CN
- China
- Prior art keywords
- slurry
- impregnated graphite
- graphite
- solvent
- impregnated
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 48
- 239000010439 graphite Substances 0.000 title claims abstract description 48
- 239000002002 slurry Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000007613 slurry method Methods 0.000 title abstract description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 34
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 6
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims description 4
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 3
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 claims description 3
- -1 Ethyl caprilate Chemical compound 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 claims description 2
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000002318 adhesion promoter Substances 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims description 2
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N methylimidazole Natural products CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 238000007665 sagging Methods 0.000 claims description 2
- RBNWAMSGVWEHFP-UHFFFAOYSA-N trans-p-Menthane-1,8-diol Chemical compound CC(C)(O)C1CCC(C)(O)CC1 RBNWAMSGVWEHFP-UHFFFAOYSA-N 0.000 claims description 2
- PGMYKACGEOXYJE-UHFFFAOYSA-N pentyl acetate Chemical compound CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 claims 2
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 13
- 229910052709 silver Inorganic materials 0.000 abstract description 13
- 239000004332 silver Substances 0.000 abstract description 13
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 4
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- KQWWVLVLVYYYDT-UHFFFAOYSA-N ethyl 3-oxohexanoate Chemical compound CCCC(=O)CC(=O)OCC KQWWVLVLVYYYDT-UHFFFAOYSA-N 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a kind of impregnated graphite slurry and preparation method thereof, the impregnated graphite slurry, by percentage to the quality, raw material includes following components: conducting particles 4~16%；Fluoropolymer resin carrier 6~20%；Solvent 71~89%；Auxiliary agent 1~5%.The preparation method comprises the following steps: (1) according to default proportion, each component is weighed, then the 1/3 of solvent total weight is used to dissolve fluoropolymer resin carrier, and it is gradually added into conducting particles under conditions of 100~300rpm/min stirring, primary black lead wash is made after being uniformly mixed；(2) primary black lead wash is rolled, so that remaining 2/3 solvent less than 5 μm, is finally diluted primary black lead wash by fineness, being diluted to viscosity is 300~1000cp, obtains the impregnated graphite slurry.That the invention enables silver layer and graphite linings overlap joints is good, contact interface resistance is small, so that the ESR of tantalum capacitor be greatly lowered.
Description
Technical field
The invention belongs to technical field of electronic devices, and in particular to a kind of impregnated graphite slurry and preparation method thereof.
Background technique
Since tantalum capacitor is found, be always the basic device that is most widely used in electronics industry it
One, it is widely applied in various types of electronic circuits.In nineteen fifty-five, the wheat Courlene of AT&T Labs of the U.S.
(D.McLean) and Bauer (F.Power) successfully develops first solid electrolyte Ta capacitor of industry, is with manganese dioxide
For electrolyte, the problem of not only overcoming liquid electrolyte " desiccation ", but also greatly improve its stability characteristic (quality) and frequency is special
Property, solid foundation has been established for the business application of tantalum capacitor in the future.
Tantalum capacitor is good etc. excellent because itself having large capacity, low-leakage current, long-life, miniaturization, low-loss, stability
Good feature, so that no matter it is in the civilian neck such as phone, colour TV, refrigerator, Video Camera, digital camera, programme-controlled exchange, computer
Domain is still all widely applied in national defences such as Aeronautics and Astronautics, guided missile, satellite, radars, especially in national defence
Using the development for accelerating tantalum capacitor, new step has been marched toward.
ESR (Equivalent series Resistance) i.e. equivalent series resistance, ESR=Ra+Rb+Rc, wherein RaIt is
It is related with tantalum pentoxide dielectric oxide film that it is lost by the resistance and film and MnO of tantalum pentoxide film2Contact resistance,
RbIt is MnO inside tantalum block2Resistance, RcIt is tantalum block appearance MnO2And Conductive graphite cream, polymer silver paste etc. resistance and mutually
Between contact resistance.With the development of electronic technology and electronic component, low-power consumption and high speed processing are modern electronic equipments
Developing direction, to tantalum capacitor performance, more stringent requirements are proposed, wherein low ESR tantalum capacitor is exactly a research hot topic.
The manufacturer of domestic external capacitive body has all been the ESR (equivalent series resistance) for reducing capacitor and has largely ground
Study carefully, but compared to external capacitor producer, studies in China is later, development speed is slow, and the ESR value of the low ESR tantalum capacitor of manganese systems is basic
More than 40m Ω.External low ESR tantalum capacitor then has reached preferable level, such as: AVX Corp. releases low ESR value
Chip tantalum capacitor series " TPS Series III "；Vishay company also releases the chip of the low ESR value of 0603 type of minimum shell number
Tantalum capacitor " MicroTan-TR8 " series, the ESR value of product is down to 25m Ω or so.But low ESR tantalum capacitor is reducing
Still there is also many shortcomings in terms of ESR, still need to further perfect.So reducing the ESR of tantalum capacitor to greatest extent
It is current one of tantalum capacitor manufacturing industry primary study project both at home and abroad, is of great significance.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of impregnated graphite slurry so that silver layer and graphite linings overlap joint it is good,
Contact interface resistance is small, so that the ESR of tantalum capacitor be greatly lowered.
The technical solution of the present invention is as follows: a kind of impregnated graphite slurry, by percentage to the quality, raw material includes following components:
Preferably, the conducting particles includes graphite and carbon black, the mass ratio of the graphite and carbon black is 1:0.3~1:
0.7。
Preferably, the fluoropolymer resin carrier be one of acrylic resin, epoxy resin and fluorubber or
It is a variety of.
Preferably, the solvent is tributyl citrate, butyl acetate, ethyl caprilate, ethyl acetate, acetic acid positive penta
Ester, butyl glycol ether, 2-Butoxyethyl acetate, polyamide wax, tetraethyl titanate, terpinol, butyl carbitol acetate, second
One of ethyl acetoacetic acid ethyl ester and methylimidazole are a variety of.
Preferably, the auxiliary agent include one of dispersing agent, sagging inhibitor, defoaming agent and adhesion promoter or
It is a variety of.
The present invention also provides the preparation methods of above-mentioned impregnated graphite slurry, comprising the following steps:
(1) according to default proportion, each component has been weighed, has then been used to dissolve fluoropolymer resin for the 1/3 of solvent total weight
Carrier, and it is gradually added into conducting particles under conditions of 100~300rpm/min stirring, primary stone is made after being uniformly mixed
Ink slurry；
(2) primary black lead wash is rolled so that fineness is less than 5 μm, finally by remaining 2/3 solvent to primary black lead wash into
Row dilution, being diluted to viscosity is 300~1000cp, obtains the impregnated graphite slurry.
The present invention also provides a kind of tantalum capacitors, including tantalum core and the graphite linings being covered on tantalum core, the graphite linings
It is prepared by above-mentioned impregnated graphite slurry.
For tantalum capacitor, ESR mainly includes three parts, first is that related with tantalum pentoxide dielectric oxide film
R is lost1, including the equivalent resistance and film that are generated by tantalum pentoxide film and MnO2Contact resistance, second is that tantalum block inside MnO2
Or the resistance R of conducting polymer2, third is that tantalum block appearance MnO2, electrically conductive graphite layer, conductive silver layer, cathodic metal piece etc. resistance with
And mutual contact resistance R3.Reduction for ESR, wherein R1、R2ESR it is smaller and stablize, be gradually improved at present；And
The ESR of cathode outlet is larger, and unstable, and be significantly improved space.Therefore, in R1And R2In the case where immobilizing, this hair
The bright desired ESR for reducing tantalum capacitor, by reducing R3Mode realize, that is, reduce impregnated graphite slurry and impregnated silver pulp
Between contact resistance, the contact interface both improved guarantees there is good overlap joint therebetween, between the two to reduce
Contact resistance.
Compared with prior art, the beneficial effects of the present invention are embodied in:
The ESR value of manganese systems tantalum capacitor is reduced to by original 40mm Ω or more after impregnated graphite slurry application of the invention
27m Ω is hereinafter, be expected to be applied in the production of low ESR tantalum capacitor.Using the black lead wash preparation tantalum capacitor ESR compared with
It is small, it has excellent performance, there is important practical value in the industrialized production of low ESR solid electrolytic tantalum capacitors.
Detailed description of the invention
Fig. 1 is impregnated graphite sizing process flow chart in the present invention.
Fig. 2 is the apparent figure of impregnated graphite slurry in the present invention.
Fig. 3 is the structural schematic diagram of slurry tantalum core impregnated graphite slurry and polymer silver paste in the present invention.
Fig. 4 is interface microscopic appearance figure between graphite linings and silver layer in the present invention.
Fig. 5 is 3D scanning figure in interface between graphite linings and silver layer in the present invention.
Fig. 6 is that Interface composition is analyzed between graphite linings and silver layer in the present invention.
Specific embodiment
Embodiment 1
(1) preparation of impregnated graphite slurry
In mass ratio by conducting particles, acrylic resin carrier, solvent and auxiliary agent, conducting particles: acrylic resin carrier:
Solvent: auxiliary agent=6.5:8.5:83:2 carries out ingredient, and wherein conducting particles is made of graphite and conductive black, mass ratio 5:3；
Solvent be butyl glycol ether, tributyl citrate and 2-Butoxyethyl acetate composition mixed solvent, mass ratio 45:
30:25, raw material specification are as shown in table 1.Suitable mixed solvent (one third for accounting for about total solvent) is weighed, by load weighted third
Olefin(e) acid resin first dissolves, it is to be dissolved completely after, be gradually added into conducting particles under stirring conditions, after adding conducting particles,
Other auxiliary agents are added, after stirring half an hour, until being uniformly mixed, primary black lead wash is made；Then primary black lead wash is passed through
Three-high mill rolling adjusts roll spacing according to slurry fineness, repeats rolling until the fineness of conductive graphite paste is less than 5 μm；Finally
Black lead wash is diluted with the solvent of residue 2/3rds, impregnated graphite slurry can be obtained.
1 experimental raw of table and specification
(2) tantalum core dipping, solidification
By the graphite slurry of complete tantalum fuse impregnation steps (1) preparation of envelope, first 3~5min at room temperature, from room temperature liter
Temperature is solidified to heat preservation 45min at a temperature of 200~240 DEG C, and Fig. 3 is that tantalum core impregnated graphite slurry and the structure of polymer silver paste are shown
It is intended to, wherein 1 is the tantalum anode block for having formed oxidation film in Fig. 3；2 (partially penetrate into tantalum anode block for manganese dioxide layer
Portion)；3 be graphite, silver slurry layer；4 be assembly scolding tin material；5 be copper shell；6 be anode tap；7 be negative wire；8 be insulator.
(3) performance test
10 tantalum capacitor sample measurement performance parameters of arbitrary extracting, test result are as shown in table 2:
The ESR and graphite linings adhesive force of the different samples of table 2
As can be found from Table 2, capacitor ESR value is small, and consistency is preferable, and adhesive force is good.Illustrate black lead wash with polymerize
The contact of object silver paste is good, and overlap joint is good, and resistance is small between interface, significantly reduces the ESR of tantalum capacitor, and compressive property
Good, adhesive force is stronger under high temperature.
Embodiment 2
In mass ratio by conducting particles, acrylic resin carrier, solvent and auxiliary agent, conducting particles: epoxy resin carrier: molten
Agent: auxiliary agent=6:8:83.5:2.5 carries out ingredient, and wherein conducting particles is made of graphite and conductive black, mass ratio 3:2；It is molten
Agent is DBE, and raw material specification is as shown in table 1.Other operating process are the same as embodiment 1.
10 tantalum capacitor sample measurement performance parameters of arbitrary extracting, test result are as shown in table 3:
The ESR of the different samples of table 3
As can be known from Table 3, capacitor ESR value is little, and consistency is preferable, and adhesive force is larger.Illustrate black lead wash with polymerize
The contact of object silver paste is good, and overlap joint is good, and resistance is small between interface, significantly reduces the ESR of tantalum capacitor, and compressive property
Good, adhesive force is stronger under high temperature.
Claims (7)
1. a kind of impregnated graphite slurry, which is characterized in that by percentage to the quality, raw material includes following components:
2. impregnated graphite as described in claim 1 slurry, which is characterized in that the conducting particles includes graphite and carbon black, described
The mass ratio of graphite and carbon black is 1:0.3~1:0.7.
3. impregnated graphite as described in claim 1 slurry, which is characterized in that the fluoropolymer resin carrier be acrylic resin,
One of epoxy resin and fluorubber are a variety of.
4. impregnated graphite as described in claim 1 slurry, which is characterized in that the solvent be tributyl citrate, butyl acetate,
Ethyl caprilate, ethyl acetate, n-amyl acetate, butyl glycol ether, 2-Butoxyethyl acetate, polyamide wax, tetraethyl titanate,
One of terpinol, butyl carbitol acetate, ethyl acetoacetate and methylimidazole are a variety of.
5. impregnated graphite slurry as described in claim 1, which is characterized in that the auxiliary agent includes dispersing agent, sagging inhibitor, defoaming
One of agent and adhesion promoter are a variety of.
6. the preparation method that the impregnated graphite as described in Claims 1 to 5 is any is starched, which comprises the following steps:
(1) according to default proportion, each component has been weighed, has then been used to dissolve fluoropolymer resin carrier for the 1/3 of solvent total weight,
And it is gradually added into conducting particles under conditions of 100~300rpm/min stirring, primary black lead wash is made after being uniformly mixed；
(2) primary black lead wash is rolled, so that fineness is less than 5 μm, it is finally that remaining 2/3 solvent is dilute to the progress of primary black lead wash
It releases, being diluted to viscosity is 300~1000cp, obtains the impregnated graphite slurry.
7. a kind of tantalum capacitor, including tantalum core and the graphite linings being covered on tantalum core, which is characterized in that the graphite linings are by right
It is required that 1~5 any impregnated graphite slurry is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369511.4A CN108962607A (en) | 2017-05-23 | 2017-05-23 | A kind of impregnated graphite slurry and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369511.4A CN108962607A (en) | 2017-05-23 | 2017-05-23 | A kind of impregnated graphite slurry and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108962607A true CN108962607A (en) | 2018-12-07 |
Family
ID=64493684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710369511.4A Pending CN108962607A (en) | 2017-05-23 | 2017-05-23 | A kind of impregnated graphite slurry and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108962607A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825611A (en) * | 1997-01-29 | 1998-10-20 | Vishay Sprague, Inc. | Doped sintered tantalum pellets with nitrogen in a capacitor |
| CN1614726A (en) * | 2004-09-28 | 2005-05-11 | 宁夏星日电子股份有限公司 | Producing method for solid electrolytic capacitor |
| CN102329496A (en) * | 2011-06-30 | 2012-01-25 | 苏州新纶超净技术有限公司 | High-conductivity carbon slurry and preparation method thereof |
| CN103915134A (en) * | 2014-04-17 | 2014-07-09 | 江南石墨烯研究院 | Method for preparing environment-friendly graphene-based conductive carbon paste |
-
2017
- 2017-05-23 CN CN201710369511.4A patent/CN108962607A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825611A (en) * | 1997-01-29 | 1998-10-20 | Vishay Sprague, Inc. | Doped sintered tantalum pellets with nitrogen in a capacitor |
| CN1614726A (en) * | 2004-09-28 | 2005-05-11 | 宁夏星日电子股份有限公司 | Producing method for solid electrolytic capacitor |
| CN102329496A (en) * | 2011-06-30 | 2012-01-25 | 苏州新纶超净技术有限公司 | High-conductivity carbon slurry and preparation method thereof |
| CN103915134A (en) * | 2014-04-17 | 2014-07-09 | 江南石墨烯研究院 | Method for preparing environment-friendly graphene-based conductive carbon paste |
Non-Patent Citations (1)
| Title |
|---|
| 王军等: "钽电容器用石墨导电胶的研究", 《电子元件与材料》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105244076B (en) | A kind of environment-friendly type, low loading conductive silver paste and preparation method thereof | |
| CN106158068A (en) | conductive silver paste and preparation method thereof | |
| CN102709055B (en) | A kind of conducting high polymers thing catholyte solution and Synthesis and applications thereof | |
| CN108901130A (en) | A kind of high-frequency high-speed flexibility coat copper plate and preparation method thereof | |
| CN101681726B (en) | Conductive paste for solid electrolytic capacitor electrode and process for producing solid electrolytic capacitor electrode using the same | |
| CN104277386A (en) | Polyvinylidene fluoride film for film capacitor | |
| CN113643900A (en) | Material containing giant dielectric powder for aluminum electrolytic capacitor and preparation method thereof | |
| CN111105932B (en) | Solid-state capacitance carbon foil nano conductive carbon paste and preparation method thereof | |
| CN113823437B (en) | Roll printing slurry for MLCC gravure printing process and preparation process thereof | |
| CN108962421A (en) | A kind of impregnated silver pulp and tantalum capacitor | |
| CN102376456B (en) | Method for manufacturing solid electrolytic capacitor and solid electrolytic capacitor | |
| CN107790739A (en) | A kind of preparation method of electronic material ultrafine gold powder | |
| CN108962607A (en) | A kind of impregnated graphite slurry and preparation method thereof | |
| CN113658803A (en) | Double-component aluminum paste for aluminum electrolytic capacitor anode sintered foil and preparation method thereof | |
| CN103000369A (en) | Method for preparing high voltage-resisting chip type ceramic capacitor | |
| CN104289728A (en) | Preparation method of spherical superfine gold powder for electronic materials | |
| CN105295753B (en) | High frequency sticks together glue layer stack structure and preparation method thereof | |
| CN111446079A (en) | Internal electrode slurry and internal electrode layer for preparing multilayer ceramic capacitor | |
| CN115188598A (en) | Aluminum electrolytic capacitor sintered foil coated with nano dielectric powder and preparation method thereof | |
| CN113178328B (en) | Copper inner electrode conductive paste for multilayer ceramic capacitor and application thereof | |
| CN101206957B (en) | Preparation of low temperature drying wafer capacitance electrode silver paste | |
| CN104529434B (en) | A kind of preparation method of chip ceramic PTC thermistor surface protective layer | |
| CN106575577A (en) | Method for manufacturing electrolytic capacitor | |
| CN102820135A (en) | Method for reducing change rate of high-temperature capacitance of niobium capacitor | |
| CN113140351B (en) | Slurry for preparing high-porosity electrode foil and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |