US20190194441A1 - Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material - Google Patents
Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material Download PDFInfo
- Publication number
- US20190194441A1 US20190194441A1 US16/286,836 US201916286836A US2019194441A1 US 20190194441 A1 US20190194441 A1 US 20190194441A1 US 201916286836 A US201916286836 A US 201916286836A US 2019194441 A1 US2019194441 A1 US 2019194441A1
- Authority
- US
- United States
- Prior art keywords
- composite material
- polymer composite
- carbon nanomaterial
- polystyrene sulfonate
- capacitor
- 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.)
- Abandoned
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 112
- 229920000642 polymer Polymers 0.000 title claims abstract description 98
- 239000003990 capacitor Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000002086 nanomaterial Substances 0.000 claims abstract description 75
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims abstract description 63
- 239000011970 polystyrene sulfonate Substances 0.000 claims abstract description 59
- 229960002796 polystyrene sulfonate Drugs 0.000 claims abstract description 59
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 26
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 102
- 229910052799 carbon Inorganic materials 0.000 claims description 79
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 claims description 53
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 30
- 238000004806 packaging method and process Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000004440 column chromatography Methods 0.000 claims description 2
- 238000000502 dialysis Methods 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- -1 poly(3,4-ethylenedioxythiophene) Polymers 0.000 abstract description 9
- 229910021389 graphene Inorganic materials 0.000 description 20
- 229920000144 PEDOT:PSS Polymers 0.000 description 19
- 239000007787 solid Substances 0.000 description 18
- 229910021393 carbon nanotube Inorganic materials 0.000 description 17
- 239000002041 carbon nanotube Substances 0.000 description 17
- 239000000243 solution Substances 0.000 description 17
- 239000011888 foil Substances 0.000 description 15
- 239000010410 layer Substances 0.000 description 11
- 229920001940 conductive polymer Polymers 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 229940006186 sodium polystyrene sulfonate Drugs 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920000831 ionic polymer Polymers 0.000 description 3
- 238000010907 mechanical stirring Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920000128 polypyrrole Polymers 0.000 description 3
- 229920000123 polythiophene Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000002077 nanosphere Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical group Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ODWXUNBKCRECNW-UHFFFAOYSA-M bromocopper(1+) Chemical compound Br[Cu+] ODWXUNBKCRECNW-UHFFFAOYSA-M 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229920000547 conjugated polymer Polymers 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/16—Homopolymers or copolymers of alkyl-substituted styrenes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/14—Esterification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
- H01G9/0036—Formation of the solid electrolyte layer
-
- 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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
-
- 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
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
-
- 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
-
- 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
- H01G9/0425—Electrodes or formation of dielectric layers thereon characterised by the material specially adapted for cathode
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/14—Side-groups
- C08G2261/142—Side-chains containing oxygen
- C08G2261/1424—Side-chains containing oxygen containing ether groups, including alkoxy
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
- C08G2261/3223—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/50—Physical properties
- C08G2261/51—Charge transport
- C08G2261/512—Hole transport
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
-
- 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
Definitions
- the instant disclosure relates to a polymer composite material, and in particular, to a polymer composite material for capacitor package structures.
- Capacitors are widely used in consumer appliances, computers, power supplies, communication products and vehicles, and hence, are important elements for electronic devices.
- the main effects of the capacitors are filtering, bypassing, rectification, coupling, decoupling and phase inverting, etc.
- capacitors can be categorized into aluminum electrolytic capacitors, tantalum electrolytic capacitors, laminated ceramic capacitors and thin film capacitors.
- solid electrolytic capacitors have the advantages of small size, large capacitance and excellent frequency property and can be used in the decoupling of the power circuits of central processing units.
- Solid electrolytic capacitors use solid electrolytes instead of liquid electrolytic solutions as cathodes.
- Conductive polymers are suitable for the cathode material of the capacitors due to its high conductivity, and the manufacturing process using conductive polymers are simple and low cost.
- Conductive polymers comprise polyaniline (PAni), polypyrrole (PPy) and polythiophene (PTh) and their derivatives.
- an embodiment of the present disclosure provides a polymer composite material for a cathode portion of a capacitor.
- the polymer composite material comprises a poly(3,4-ethylenedioxythiophene) unit, a polystyrene sulfonate unit and a carbon nanomaterial, the polystyrene sulfonate unit is connected between the poly(3,4-ethylenedioxythiophene) unit and the carbon nanomaterial, and the polystyrene sulfonate unit is bonded to poly(3,4-ethylenedioxythiophene) through a polymerization process.
- a content of the carbon nanomaterial ranges from 0.01-1.5 wt. % based on a weight of the polymer composite material.
- Another embodiment of the instant disclosure provides a capacitor package structure comprising at least a capacitor, and a cathode portion of the capacitor comprises the polymer composite material mentioned above.
- Another embodiment of the instant disclosure provides a method for manufacturing a polymer composite material, comprising: mixing a carbon nanomaterial with polystyrene sulfonate to form a carbon nanomaterial modified by polystyrene sulfonate; adding 3,4-ethylenedioxythiophene into a solution comprising the carbon nanomaterial modified by polystyrene sulfonate; and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene and the carbon nanomaterial modified by polystyrene sulfonate in the solution for forming a product stream comprising the polymer composite material.
- the polymer composite material comprises a poly(3,4-ethylenedioxythiophene) unit, a polystyrene sulfonate unit and the carbon nanomaterial.
- the polystyrene sulfonate unit is connected between the poly(3,4-ethylenedioxythiophene) unit and the carbon nanomaterial, and the polystyrene sulfonate unit is bonded to the poly(3,4-ethylenedioxythiophene) unit through a polymerization process.
- a content of the carbon nanomaterial ranges from 0.01-1.5 wt. % based on a weight of the polymer composite material.
- Another embodiment of the present disclosure provides a method for manufacturing a capacitor package structure, comprising: providing at least a capacitor having a cathode comprising the polymer composite material manufactured by the method mentioned above; and packaging the capacitor with a package structure, wherein a positive pin and a negative pin both electrically connected to the capacitor are exposed from the package structure.
- the polymer composite material comprises a carbon nanomaterial of specific content and thus has excellent electric property. Therefore, the solid electrolytic capacitor comprising the polymer composite has improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current.
- the method of manufacturing the polymer composite material of the instant disclosure has reduced manufacturing cost and hence, the overall manufacturing cost of the solid electrolytic capacitor is reduced.
- FIG. 1 is a sectional view of one of the capacitor packaging using a polymer composite material provided by the embodiments of the instant disclosure
- FIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure
- FIG. 3 is a three-dimensional schematic view of another capacitor using the polymer composite material provided by the embodiments of the instant disclosure.
- FIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure.
- FIG. 5 is a structural schematic view of the polymer composite material provided by one of the embodiments of the instant disclosure.
- FIG. 6 is a flow chart of the method for manufacturing the polymer composite material provided by one of the embodiments of the instant disclosure
- FIG. 7 shows the chemical structures of the poly(3,4-ethylenedioxythiophene) unit and the polystyrene sulfonate unit of the polymer composite material provided by the embodiments of the instant disclosure.
- FIG. 8 is one of the structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure.
- FIG. 9 is another structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure.
- FIG. 10 is the structural schematic view of the polymer composite material provided by another one of the embodiments of the instant disclosure.
- FIG. 11 is a flow chart of the method for manufacturing a polymer composite material provided by another one of the embodiments of the instant disclosure.
- FIG. 1 is a sectional view of one of the capacitor packaging using a polymer composite material provided by the embodiments of the instant disclosure
- FIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure.
- the polymer composite material 2 provided by the instant disclosure can be used in the conductive polymer layer 102 of the cathode portion N of the capacitor 1 .
- the capacitor 1 is the capacitor unit 42 of the stacked type solid electrolytic capacitor 4 .
- the capacitor 1 comprises the metal foil 100 , the oxide layer 101 enclosing the metal foil 100 , the conductive polymer layer 102 enclosing a part of the conductive polymer layer 102 , the carbon paste layer 103 enclosing the conductive polymer layer 102 , and the silver paste layer 104 enclosing the carbon paste layer 103 .
- the structure of the capacitor 1 can be adjusted according to the requirement of the products.
- the conductive polymer layer 102 is used as the solid electrolytic of the capacitor 1 .
- the stacked type solid electrolytic capacitor 4 comprises a plurality of capacitor units 42 stacked one above another.
- the stacked type solid electrolytic capacitor 4 comprises a conductive frame 41 .
- the conductive frame 41 comprises a first conductive terminal 411 and a second conductive terminal 412 separated from the first conductive terminal 411 for a predetermined distance.
- the plurality of capacitor units 42 has a first positive electrode portion P 1 electrically connected to the first conductive terminal 411 of the corresponding conductive frame 41 and a first negative electrode portion N 1 electrically connected to the second conductive terminal 412 of the corresponding conductive frame 41 .
- a plurality of capacitor units 42 electrically connected to each other and stacked one above another are enclosed by a package 43 , thereby forming the stacked type solid electrolytic capacitor 4 .
- FIG. 3 is a three-dimensional schematic view of another capacitor using the polymer composite material provided by the embodiments of the instant disclosure
- FIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure.
- the capacitor 1 is the capacitor unit in the wound type solid electrolytic capacitor 3 .
- the wound type solid electrolytic capacitor 3 comprises a wound type component 31 , a packaging component 32 and a conductive component 33 .
- the wound type component 31 comprises a wound type positive electrode conductive foil 311 , a wound type negative electrode conductive foil 312 and two wound type isolating foils 313 .
- one of the wound type isolating foils 313 is disposed between the wound type positive electrode conductive foil 311 and the wound type negative electrode conductive foil 312
- one of the wound type positive electrode conductive foil 311 and the wound type negative electrode conductive foil 312 is disposed between the two wound type isolating foils 313 .
- the wound type isolating foils 313 can be isolating papers or paper foils having the polymer composite material coated thereon by impregnation.
- the wound type component 31 is enclosed in the packaging component 32 .
- the packaging component 32 comprises a capacitor casing structure 321 (such as an aluminum casing or a casing made of other metals) and a bottom end sealing structure 322 .
- the capacitor casing structure 321 has an accommodating space 3210 for accommodating the wound type component 31 .
- the bottom end sealing structure 322 is disposed in the accommodating space 3210 located at the bottom end of the capacitor casing structure 321 .
- the packaging component 32 can be a package made of any insulating materials.
- the conductive component 33 comprises a first conductive pin 331 electrically contacting the wound type positive electrode conductive foil 311 and a second conductive pin 332 electrically contacting the wound type negative electrode conductive foil 312 .
- the first conductive pin 331 has a first buried portion 3311 enclosed in the packaging component 32 and a first exposed portion 3312 exposed from the packaging component 32 .
- the second conductive pin 332 has a second buried portion 3321 enclosed in the packaging component 32 and a second exposed portion 3322 exposed from the packaging component 32 .
- FIG. 5 is a structural schematic view of the polymer composite material provided by one of the embodiments of the instant disclosure
- FIG. 7 shows the chemical structures of the poly(3,4-ethylenedioxythiophene) unit and the polystyrene sulfonate unit of the polymer composite material provided by the embodiments of the instant disclosure
- FIG. 8 is one of the structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure
- FIG. 9 is another structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure.
- the polymer composite material 2 comprises the poly(3,4-ethylenedioxythiophene) unit (formed by 3 , 4 -ethylenedioxythiophene 211 ′), a polystyrene sulfonate unit 212 and a carbon nanomaterial 22 .
- 3,4-ethylenedioxythiophene 211 ′ and the polystyrene sulfonate unit 212 can be used to form a PEDOT:PSS composite 21 .
- the PEDOT:PSS composite 21 is a mixture of two ionic polymers.
- the two ionic polymers are sodium polystyrene sulfonate and poly(3,4-ethylenedioxophene), in which sodium polystyrene sulfonate is a polystyrene sulfonate and poly(3,4-ethylenedioxophene) is a polythiophene-based conjugated polymer.
- the above ionic polymers together form a macromolecule salt, referred to as the PEDOT:PSS composite 21 .
- the PEDOT:PSS composite 21 has excellent conductivity. Compared to other polymer compounds such as Pani and PPy, the PEDOT:PSS composite 21 has lower polymerization velocity and is able to perform polymerization reaction under room temperature and hence, the preparation of the PEDOT:PSS composite 21 is easier than that of other polymer compounds. Besides, the PEDOT:PSS composite 21 has the advantages of good dispersing property, low manufacturing cost, high transparency and excellent processability. Therefore, using the PEDOT:PSS composite 21 as the material for forming the conductive polymer layer 102 on the cathode portion N of the capacitor 1 allows the capacitor 1 to exhibit enhanced electric performance.
- the carbon nanomaterial 22 is carbon nanotubes, carbon nanospheres, carbon pump graphenes or any combination thereof.
- FIG. 8 shows the structure of graphenes
- FIG. 9 shows the structure of carbon nanotubes.
- FIG. 5 is the structural schematic view of the polymer composite material 2 using graphenes as the carbon nanomaterial 22 .
- Graphenes are planer films formed by carbon atom in sp 2 hybrid orbital and have a thickness equal to a diameter of single carbon atom.
- Graphenes have high thermal conductivity, low resistance rate and high stability and hence, are excellent electrical and thermal conductance.
- Carbon nanotubes are formed by a single layer or multi-layered graphite of sp 2 hybrid orbitals through winding respect to a same axial. Carbon nanotubes have good thermal resistance, good electric conductivity, high mechanical strength, flexibility and high surface area.
- One of the technical features of the instant disclosure is to combine the three materials each having excellent property, i.e., the poly(3,4-ethylenedioxythiophene) unit 211 , the polystyrene sulfonate unit 212 and the carbon nanomaterial 22 , and to apply the polymer composite material 2 formed by chemical reactions between the three materials in the cathode portion of a capacitor, thereby effectively improving the electric performance of the capacitor, i.e., the capacitor can have improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current.
- the poly(3,4-ethylenedioxythiophene) unit 211 , the polystyrene sulfonate unit 212 and the carbon nanomaterial 22 co-react to form the polymer composite material 2 of the instant disclosure.
- the PEDOT:PSS composite 21 constituted by the poly(3,4-ethylenedioxythiophene) unit 211 and the polystyrene sulfonate unit 212 bonds to the carbon nanomaterial 22 after the reactions.
- the carbon nanomaterial 22 surrounds the PEDOT:PSS composite 21 , or encloses the PEDOT:PSS composite 21 .
- the PEDOT:PSS composite 21 and the carbon nanomaterial 22 can be bonded to each other through surface modification and stabilizing techniques.
- the content of the carbon nanomaterial 22 ranges from 0.01-1.5 wt. %.
- the carbon nanomaterial 22 having the above content can improve the electric properties of the capacitor.
- the polymer composite material 2 provided by the instant disclosure can improve the electric properties of the capacitor by using a small amount (less than 0.1 wt %) of the carbon nanomaterial 22 .
- the surface of the carbon nanomaterial 22 can be modified.
- the surface modification techniques of the carbon nanomaterial 22 can be categorized into (1) acidizing the defects on the surface of the carbon nanomaterial 22 , then functionalizing the carbon nanomaterial 22 , and (2) directly attaching or bonding specific functional groups onto the surface of the carbon nanomaterial 22 .
- the carbon nanomaterial 22 can be modified through carboxylic group or hydroxyl group for improving the reactivity of the carbon nanomaterial 22 to enable the carbon nanomaterial 22 to be dispersed in solvents such as de-ionized water or organic solvents, or to allow the carbon nanomaterial 22 to be well-mixed with polymer materials (such as the PEDOT:PSS composite 21 ).
- the modification process and the modifier for the carbon nanomaterial 22 are not limited in the instant disclosure.
- FIG. 6 is a flow chart of the method for manufacturing the polymer composite material provided by one of the embodiments of the instant disclosure.
- the embodiment shown in FIG. 6 comprises mixing 3,4-ethylenedioxythiophene (EDOT), polystyrene sulfonate (PSS) and a carbon nanomaterial for forming a mixture (S 100 ); and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene, polystyrene sulfonate (PSS) and the carbon nanomaterial for forming a product stream (S 102 ).
- EDOT 3,4-ethylenedioxythiophene
- PSS polystyrene sulfonate
- S 100 carbon nanomaterial for forming a mixture
- S 102 carbon nanomaterial for forming a product stream
- the polymer composite material 2 provided by the instant disclosure can be formed by different methods.
- the carbon nanomaterial 22 can be graphenes or carbon nanotubes, and the graphenes or carbon nanotubes can be pre-treated, for example, by surface-modification.
- graphene oxide (GO) or reduced graphene oxide (RGO) can be used as the material for manufacturing the polymer composite material 2 .
- 3,4-ethylenedioxythiophene 211 ′, the polystyrene sulfonate unit 212 and the carbon nanomaterial 22 form the polymer composite material 2 through an in-situ polymerization reaction.
- the carbon nanomaterial 22 is reduced graphene oxides (RGO).
- the RGO and the polystyrene sulfonate unit 212 are first dissolved in a solvent for forming a solution.
- the polystyrene sulfonate unit 212 in the solution can be served as the reactant for forming the PEDOT:PSS composite 21 and the dispersant for dispersing RGO.
- the solvent can be an organic solvent or water.
- 3,4-ethylenedioxythiophene 211 ′ is added into the solution.
- the polymerization reaction can be initiated by adding an oxidant.
- the mixture solution of 3,4-ethylenedioxythiophene 211 ′, the polystyrene sulfonate unit 212 and the carbon nanomaterial 22 can be heated and stirred.
- the reaction temperature can be controlled.
- the mixture solution is heated to a temperature between 30 to 60° C.
- the time of stirring such as ultrasonic stirring can be 1 to 24 hours.
- nitrogen gas can be input into the reaction environment to avoid the poly(3,4-ethylenedioxythiophene) unit 211 being over-oxided and reduce the electric conductivity of the polymer composite material 2 formed therefrom.
- remained ions in the product stream can be removed by purifying processes such as a process using an ion exchange resin.
- a dispersing agent can be further added into the mixture solution during the polymerization process to facilitate the dispersion and stability of the mixture solution.
- the dispersing agent can be sodium dodecyl-sulfonate.
- the carbon nanomaterial 22 is graphenes
- the structure of the graphenes can be folded and forms a folded structure in the solvent, thereby reducing the possibility of combing (bonding) with the PEDOT:PSS composite 21 . Therefore, a dispersing agent can solve the above problem to ensure the graphenes to be surface-modified with the PEDOT:PSS composite 21 for forming the polymer composite material 2 provided by the instant disclosure.
- graphenes dissolved in a solvent can be directly mixed with the PEDOT:PSS composite 21 for bonding the graphenes with the PEDOT:PSS composite 21 .
- the graphenes can be graphene oxide (GO) or reduced graphene oxide (RGO).
- GO has relatively low electric conductivity
- RGO reduced graphene oxide
- a further reduction reaction may be needed after mixing the GO with the PEDOT:PSS composite 21 for improving the electric conductivitiy of the graphenes.
- the reducing agent for performing the reduction reaction is, for example, hydrazine (N 2 H 4 ).
- the instant disclosure is not limited thereto.
- the polymer composite material 2 manufactured by the method provided by the instant disclosure can be directly used as the material for forming the cathode of a capacitor.
- the polymer composite material 2 can be coated on the cathode of the capacitor through a film-forming process.
- a capacitor unit can be impregnated into a solution comprising the polymer composite material 2 for forming a conductive polymer layer on the surface thereof.
- the product stream can be further purified for separating the polymer material. Therefore, the purity of the polymer composite material 2 can be ensured.
- the product stream comprising the polymer composite material 2 can be purified by at least one of centrifugation, dialysis, column chromatography, precipitation and ion exchange process.
- the polymer composite material 2 can be further homogeneously dispersed.
- the polymer composite material 2 can be homogeneously dispersed by at least one of a homogenous stirrer, ultrasonic grinder, high pressure homogenizer and ball mill.
- FIG. 10 is the structural schematic view of the polymer composite material of this embodiment
- FIG. 11 is the flow chart of the method for manufacturing the polymer composite material.
- the poly(3,4-ethylenedioxythiophene) unit 211 , the polystyrene sulfonate unit 212 and the carbon nanomaterial 22 are connected in a different manner to form the polymer composite material 2 .
- the polystyrene sulfonate unit 212 is connected between the carbon nanomaterial 22 and the poly(3,4-ethylenedioxythiophene) unit 211 , and the polystyrene sulfonate unit 212 is connected to the polystyrene sulfonate unit 212 through a polymerization process.
- the method for manufacturing the polymer composite material of the present embodiment is described below.
- the method for manufacturing the polymer composite material comprises mixing the carbon nanomaterial 22 and polystyrene sulfonate for forming a carbon nanomaterial modified by polystyrene sulfonate (S 201 ); adding 3,4-ethylenedioxythiophene into a solution comprising the carbon nanomaterial modified by polystyrene sulfonate (S 203 ); and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene and the carbon nanomaterial modified by polystyrene sulfonate in the solution for forming a product stream comprising the polymer composite material (S 205 ).
- the polystyrene sulfonate unit 212 is connected between the carbon nanomaterial 22 and a poly(3,4-ethylenedioxythiophene) unit 211 , and the polystyrene sulfonate unit 212 is bonded to the poly(3,4-ethylenedioxythiophene) unit 211 through a polymerization reaction.
- the content of the carbon nanomaterial 22 is from 0.01-1.5 wt. %.
- step S 201 is for forming the carbon nanomaterial modified with PSS.
- the carbon nanomaterial 22 is carbon nanotubes.
- the type of the carbon nanomaterial 22 is described in the previous embodiments and can be carbon nanotubes, carbon nanospheres, graphenes, carbon bass or any combination thereof.
- the carbon nanotubes shown in FIG. 10 can be formed by a thermal chemical vapor deposition process.
- the carbon nanomaterial 22 (carbon nanotubes, CNT) can be surface-modified.
- the carboxylic groups on the surface of the carbon nanotubes react with thionyl choloride (SOCl 2 ) for forming carbon nanotubes modified with thinoyl chloride (CNT-COCl).
- SOCl 2 thionyl choloride
- CNT-COCl thinoyl chloride
- the CNT-COCl is reflux by 2-hydroxyethtl-2′-bromoisobutyrate and toluene to synthesis carbon nanotubes with bromide groups (CNT-Br).
- the activated carbon nanotubes are mixed with polystyrene sulfonate 212 .
- the polystyrene sulfonate 212 can be provided by sodium polystyrene sulfonate.
- the reaction between the CNT-Br and the sodium polystyrene sulfonate can be carried out in a N, N-dimethylformamide solution with the copper bromide and PMDTA (N,N,N′,N′,N′′-pentamethyldiethylenetriamine) as reaction additive.
- the reaction temperature in step S 201 can be, for example, 120° C., and the reaction time can be about 30 hours.
- the product can be separated by centrifugation or filtration, thereby obtained the carbon nanomaterial (carbon nanotube) modified by PSS.
- step S 203 3,4-ethylenedioxythiophene is added into the solution comprising the carbon nanomaterial modified by PSS.
- the solvent for dissolving the carbon nanomaterial modified by PSS is water.
- step S 205 initiating a polymerization reaction to allow the carbon nanomaterial modified by PSS and the 3,4-ethylenedioxythiophene in the solution for forming a product stream comprising the polymer composite material 2 .
- the polymer composite material 2 comprises the polystyrene sulfonate unit 212 , the poly(3,4-ethylenedioxythiophene) unit 211 and the carbon nanomaterial 22 .
- the polymerization reaction can be carried out by chemical oxidative method under the presence of 3,4-ethylenedioxythiophene 211 ′ and polystyrene sulfonate.
- Ammonium persulfate (APS) can be added during the polymerization reaction, and mechanical stirring can be applied.
- the product stream comprising the polymer composite material 2 can be formed by mechanical stirring the solution for 48 hours under room temperature.
- the structure of the polymer composite material 2 formed by polymerization process is shown in FIG. 10 . Since the carbon nanotube is activated before performing step S 201 , the activated carbon nanotube is bonded to the polystyrene sulfonate unit 212 through the modified functional groups on the surface thereof. In other words, in the embodiments of the instant disclosure, the carbon nanomaterial 22 does not have to directly bond to the polystyrene sulfonate unit 212 . However, the instant disclosure is not limited thereto. In other words, the carbon nanomaterial 22 can be directly bonded to the polystyrene sulfonate unit 212 .
- the polymer composite material 2 manufactured by the method mentioned can be directly used as the material for the cathode of the capacitor.
- the product stream can be further purified for separating the polymer composite material 2 .
- the polymer composite material 2 can further be homogeneously dispersed. The details for performing purification and homogeneously dispersion are described in the previous embodiments and are not described herein.
- the instant disclosure further provides a method for manufacturing capacitor package structure, comprising: providing at least a capacitor in which the cathode of the capacitor comprises the polymer composite material manufactured by the method mentioned above; and packaging the capacitor by a package structure. A positive electrode pin and a negative electrode pin electrically connected to the capacitor are exposed from the package structure.
- FIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure
- FIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure.
- the capacitor 1 can be the capacitor unit 42 in the stacked type solid electrolytic capacitor 4 , or the wound type component 31 of the wound type solid electrolytic capacitor 3 .
- the package structure can be the package 43 in the stacked type solid electrolytic capacitor 4 , or the packaging component 32 in the wound type solid electrolytic capacitor 3 . The details of the above components are described above regarding the capacitor package structure.
- the effectiveness of the instant disclosure is that the polymer composite material 2 of the instant disclosure comprises a carbon nanomaterial 22 of specific content and thus has excellent electric property. Therefore, the solid electrolytic capacitor comprising the polymer composite 2 has improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current.
- the method of manufacturing the polymer composite material 2 of the instant disclosure has reduced manufacturing cost and hence, the overall manufacturing cost of the solid electrolytic capacitor is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The instant disclosure provides a polymer composite material, the method for manufacturing the polymer composite material, a capacitor package structure using the polymer composite material and the method for manufacturing the capacitor package structure. The polymer composite material is used for the cathode of a capacitor, wherein the polymer composite material includes poly(3,4-ethylenedioxythiophene), polystyrene sulfonate and a nanomaterial. Polystyrene sulfonate is connected between the nanomaterial and poly(3,4-ethylenedioxythiophene), and polystyrene sulfonate is bonded to the poly(3,4-ethylenedioxythiophene) through a polymerization process. The content of the nanomaterial ranges from 0.01-1.5 wt. % based on the weight of the polymer composite material.
Description
- This is a divisional application of U.S. application Ser. No. 15/672,933, filed on Aug. 9, 2017 and entitled “POLYMER COMPOSITE MATERIAL, METHOD FOR MANUFACTURING THE POLYMER COMPOSITE MATERIAL, CAPACITOR PACKAGE STRUCTURE USING THE POLYMER COMPOSITE MATERIAL AND METHOD FOR MANUFACTURING THE CAPACITOR PACKAGE STRUCTURE”, the entire disclosures of both are incorporated herein by reference.
- The instant disclosure relates to a polymer composite material, and in particular, to a polymer composite material for capacitor package structures.
- Capacitors are widely used in consumer appliances, computers, power supplies, communication products and vehicles, and hence, are important elements for electronic devices. The main effects of the capacitors are filtering, bypassing, rectification, coupling, decoupling and phase inverting, etc. Based on different materials and uses thereof, capacitors can be categorized into aluminum electrolytic capacitors, tantalum electrolytic capacitors, laminated ceramic capacitors and thin film capacitors. In the existing art, solid electrolytic capacitors have the advantages of small size, large capacitance and excellent frequency property and can be used in the decoupling of the power circuits of central processing units. Solid electrolytic capacitors use solid electrolytes instead of liquid electrolytic solutions as cathodes. Conductive polymers are suitable for the cathode material of the capacitors due to its high conductivity, and the manufacturing process using conductive polymers are simple and low cost. Conductive polymers comprise polyaniline (PAni), polypyrrole (PPy) and polythiophene (PTh) and their derivatives.
- In the technical field of the instant disclosure, there is a need to improve the electrical performance of the solid electrolytic capacitor package structures.
- In order to achieve the object mentioned above, an embodiment of the present disclosure provides a polymer composite material for a cathode portion of a capacitor. The polymer composite material comprises a poly(3,4-ethylenedioxythiophene) unit, a polystyrene sulfonate unit and a carbon nanomaterial, the polystyrene sulfonate unit is connected between the poly(3,4-ethylenedioxythiophene) unit and the carbon nanomaterial, and the polystyrene sulfonate unit is bonded to poly(3,4-ethylenedioxythiophene) through a polymerization process. A content of the carbon nanomaterial ranges from 0.01-1.5 wt. % based on a weight of the polymer composite material.
- Another embodiment of the instant disclosure provides a capacitor package structure comprising at least a capacitor, and a cathode portion of the capacitor comprises the polymer composite material mentioned above.
- Another embodiment of the instant disclosure provides a method for manufacturing a polymer composite material, comprising: mixing a carbon nanomaterial with polystyrene sulfonate to form a carbon nanomaterial modified by polystyrene sulfonate; adding 3,4-ethylenedioxythiophene into a solution comprising the carbon nanomaterial modified by polystyrene sulfonate; and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene and the carbon nanomaterial modified by polystyrene sulfonate in the solution for forming a product stream comprising the polymer composite material. The polymer composite material comprises a poly(3,4-ethylenedioxythiophene) unit, a polystyrene sulfonate unit and the carbon nanomaterial. The polystyrene sulfonate unit is connected between the poly(3,4-ethylenedioxythiophene) unit and the carbon nanomaterial, and the polystyrene sulfonate unit is bonded to the poly(3,4-ethylenedioxythiophene) unit through a polymerization process. A content of the carbon nanomaterial ranges from 0.01-1.5 wt. % based on a weight of the polymer composite material.
- Another embodiment of the present disclosure provides a method for manufacturing a capacitor package structure, comprising: providing at least a capacitor having a cathode comprising the polymer composite material manufactured by the method mentioned above; and packaging the capacitor with a package structure, wherein a positive pin and a negative pin both electrically connected to the capacitor are exposed from the package structure.
- The main technical means of the instant disclosure is that the polymer composite material comprises a carbon nanomaterial of specific content and thus has excellent electric property. Therefore, the solid electrolytic capacitor comprising the polymer composite has improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current. In addition, the method of manufacturing the polymer composite material of the instant disclosure has reduced manufacturing cost and hence, the overall manufacturing cost of the solid electrolytic capacitor is reduced.
- In order to further understand the techniques, means and effects of the instant disclosure, the following detailed descriptions and appended drawings are hereby referred to, such that, and through which, the purposes, features and aspects of the instant disclosure can be thoroughly and concretely appreciated; however, the appended drawings are merely provided for reference and illustration, without any intention to be used for limiting the instant disclosure.
- The accompanying drawings are included to provide a further understanding of the instant disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the instant disclosure and, together with the description, serve to explain the principles of the instant disclosure.
-
FIG. 1 is a sectional view of one of the capacitor packaging using a polymer composite material provided by the embodiments of the instant disclosure; -
FIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure; -
FIG. 3 is a three-dimensional schematic view of another capacitor using the polymer composite material provided by the embodiments of the instant disclosure. -
FIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure; -
FIG. 5 is a structural schematic view of the polymer composite material provided by one of the embodiments of the instant disclosure; -
FIG. 6 is a flow chart of the method for manufacturing the polymer composite material provided by one of the embodiments of the instant disclosure; -
FIG. 7 shows the chemical structures of the poly(3,4-ethylenedioxythiophene) unit and the polystyrene sulfonate unit of the polymer composite material provided by the embodiments of the instant disclosure. -
FIG. 8 is one of the structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure; -
FIG. 9 is another structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure; -
FIG. 10 is the structural schematic view of the polymer composite material provided by another one of the embodiments of the instant disclosure; and -
FIG. 11 is a flow chart of the method for manufacturing a polymer composite material provided by another one of the embodiments of the instant disclosure. - Reference will now be made in detail to the exemplary embodiments of the instant disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
- Please refer to
FIG. 1 andFIG. 2 .FIG. 1 is a sectional view of one of the capacitor packaging using a polymer composite material provided by the embodiments of the instant disclosure, andFIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure. Specifically, the polymercomposite material 2 provided by the instant disclosure can be used in theconductive polymer layer 102 of the cathode portion N of thecapacitor 1. InFIG. 2 , thecapacitor 1 is thecapacitor unit 42 of the stacked type solidelectrolytic capacitor 4. - For example, as shown in
FIG. 1 , thecapacitor 1 comprises themetal foil 100, theoxide layer 101 enclosing themetal foil 100, theconductive polymer layer 102 enclosing a part of theconductive polymer layer 102, thecarbon paste layer 103 enclosing theconductive polymer layer 102, and thesilver paste layer 104 enclosing thecarbon paste layer 103. The structure of thecapacitor 1 can be adjusted according to the requirement of the products. Theconductive polymer layer 102 is used as the solid electrolytic of thecapacitor 1. - As shown in
FIG. 2 , the stacked type solidelectrolytic capacitor 4 comprises a plurality ofcapacitor units 42 stacked one above another. In addition, the stacked type solidelectrolytic capacitor 4 comprises aconductive frame 41. Theconductive frame 41 comprises a firstconductive terminal 411 and a secondconductive terminal 412 separated from the firstconductive terminal 411 for a predetermined distance. The plurality ofcapacitor units 42 has a first positive electrode portion P1 electrically connected to the firstconductive terminal 411 of the correspondingconductive frame 41 and a first negative electrode portion N1 electrically connected to the secondconductive terminal 412 of the correspondingconductive frame 41. In addition, a plurality ofcapacitor units 42 electrically connected to each other and stacked one above another are enclosed by apackage 43, thereby forming the stacked type solidelectrolytic capacitor 4. - Please refer to
FIG. 3 andFIG. 4 .FIG. 3 is a three-dimensional schematic view of another capacitor using the polymer composite material provided by the embodiments of the instant disclosure, andFIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure. InFIG. 3 andFIG. 4 , thecapacitor 1 is the capacitor unit in the wound type solidelectrolytic capacitor 3. - As shown in
FIG. 4 , the wound type solidelectrolytic capacitor 3 comprises awound type component 31, apackaging component 32 and aconductive component 33. Please refer toFIG. 3 . Thewound type component 31 comprises a wound type positive electrodeconductive foil 311, a wound type negative electrodeconductive foil 312 and two woundtype isolating foils 313. Furthermore, one of the woundtype isolating foils 313 is disposed between the wound type positive electrodeconductive foil 311 and the wound type negative electrodeconductive foil 312, and one of the wound type positive electrodeconductive foil 311 and the wound type negative electrodeconductive foil 312 is disposed between the two woundtype isolating foils 313. The woundtype isolating foils 313 can be isolating papers or paper foils having the polymer composite material coated thereon by impregnation. - Please refer to
FIG. 4 . Thewound type component 31 is enclosed in thepackaging component 32. For example, thepackaging component 32 comprises a capacitor casing structure 321 (such as an aluminum casing or a casing made of other metals) and a bottomend sealing structure 322. Thecapacitor casing structure 321 has anaccommodating space 3210 for accommodating thewound type component 31. The bottomend sealing structure 322 is disposed in theaccommodating space 3210 located at the bottom end of thecapacitor casing structure 321. In addition, thepackaging component 32 can be a package made of any insulating materials. - The
conductive component 33 comprises a firstconductive pin 331 electrically contacting the wound type positive electrodeconductive foil 311 and a secondconductive pin 332 electrically contacting the wound type negative electrodeconductive foil 312. For example, the firstconductive pin 331 has a first buriedportion 3311 enclosed in thepackaging component 32 and a first exposedportion 3312 exposed from thepackaging component 32. The secondconductive pin 332 has a second buriedportion 3321 enclosed in thepackaging component 32 and a second exposedportion 3322 exposed from thepackaging component 32. - Please refer to
FIG. 5 , andFIG. 7 toFIG. 9 .FIG. 5 is a structural schematic view of the polymer composite material provided by one of the embodiments of the instant disclosure,FIG. 7 shows the chemical structures of the poly(3,4-ethylenedioxythiophene) unit and the polystyrene sulfonate unit of the polymer composite material provided by the embodiments of the instant disclosure,FIG. 8 is one of the structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure, andFIG. 9 is another structural schematic view of the carbon nanomaterial of the polymer composite material provided by the embodiments of the instant disclosure. Thepolymer composite material 2 provided by the embodiments of the instant disclosure comprises the poly(3,4-ethylenedioxythiophene) unit (formed by 3,4-ethylenedioxythiophene 211′), apolystyrene sulfonate unit 212 and acarbon nanomaterial 22. 3,4-ethylenedioxythiophene 211′ and thepolystyrene sulfonate unit 212 can be used to form a PEDOT:PSS composite 21. - Please refer to
FIG. 7 , the PEDOT:PSS composite 21 is a mixture of two ionic polymers. The two ionic polymers are sodium polystyrene sulfonate and poly(3,4-ethylenedioxophene), in which sodium polystyrene sulfonate is a polystyrene sulfonate and poly(3,4-ethylenedioxophene) is a polythiophene-based conjugated polymer. The above ionic polymers together form a macromolecule salt, referred to as the PEDOT:PSS composite 21. - The PEDOT:PSS composite 21 has excellent conductivity. Compared to other polymer compounds such as Pani and PPy, the PEDOT:PSS composite 21 has lower polymerization velocity and is able to perform polymerization reaction under room temperature and hence, the preparation of the PEDOT:PSS composite 21 is easier than that of other polymer compounds. Besides, the PEDOT:PSS composite 21 has the advantages of good dispersing property, low manufacturing cost, high transparency and excellent processability. Therefore, using the PEDOT:PSS composite 21 as the material for forming the
conductive polymer layer 102 on the cathode portion N of thecapacitor 1 allows thecapacitor 1 to exhibit enhanced electric performance. - In the embodiments of the instant disclosure, the
carbon nanomaterial 22 is carbon nanotubes, carbon nanospheres, carbon freak graphenes or any combination thereof.FIG. 8 shows the structure of graphenes, andFIG. 9 shows the structure of carbon nanotubes.FIG. 5 is the structural schematic view of thepolymer composite material 2 using graphenes as thecarbon nanomaterial 22. Graphenes are planer films formed by carbon atom in sp2 hybrid orbital and have a thickness equal to a diameter of single carbon atom. Graphenes have high thermal conductivity, low resistance rate and high stability and hence, are excellent electrical and thermal conductance. Carbon nanotubes are formed by a single layer or multi-layered graphite of sp2 hybrid orbitals through winding respect to a same axial. Carbon nanotubes have good thermal resistance, good electric conductivity, high mechanical strength, flexibility and high surface area. - One of the technical features of the instant disclosure is to combine the three materials each having excellent property, i.e., the poly(3,4-ethylenedioxythiophene)
unit 211, thepolystyrene sulfonate unit 212 and thecarbon nanomaterial 22, and to apply thepolymer composite material 2 formed by chemical reactions between the three materials in the cathode portion of a capacitor, thereby effectively improving the electric performance of the capacitor, i.e., the capacitor can have improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current. - As shown in
FIG. 5 , in an embodiment, the poly(3,4-ethylenedioxythiophene)unit 211, thepolystyrene sulfonate unit 212 and thecarbon nanomaterial 22 co-react to form thepolymer composite material 2 of the instant disclosure. For example, the PEDOT:PSS composite 21 constituted by the poly(3,4-ethylenedioxythiophene)unit 211 and thepolystyrene sulfonate unit 212 bonds to thecarbon nanomaterial 22 after the reactions. Thecarbon nanomaterial 22 surrounds the PEDOT:PSS composite 21, or encloses the PEDOT:PSS composite 21. For example, in the embodiments of the instant disclosure, the PEDOT:PSS composite 21 and thecarbon nanomaterial 22 can be bonded to each other through surface modification and stabilizing techniques. - In the embodiments of the instant disclosure, based on the weight of the
polymer composite material 2, the content of thecarbon nanomaterial 22 ranges from 0.01-1.5 wt. %. Preferably, in the embodiments of the instant disclosure, thecarbon nanomaterial 22 having the above content can improve the electric properties of the capacitor. In other words, thepolymer composite material 2 provided by the instant disclosure can improve the electric properties of the capacitor by using a small amount (less than 0.1 wt %) of thecarbon nanomaterial 22. - In addition, before forming the
polymer composite material 2 provided by the instant disclosure, the surface of thecarbon nanomaterial 22 can be modified. The surface modification techniques of thecarbon nanomaterial 22 can be categorized into (1) acidizing the defects on the surface of thecarbon nanomaterial 22, then functionalizing thecarbon nanomaterial 22, and (2) directly attaching or bonding specific functional groups onto the surface of thecarbon nanomaterial 22. For example, thecarbon nanomaterial 22 can be modified through carboxylic group or hydroxyl group for improving the reactivity of thecarbon nanomaterial 22 to enable thecarbon nanomaterial 22 to be dispersed in solvents such as de-ionized water or organic solvents, or to allow thecarbon nanomaterial 22 to be well-mixed with polymer materials (such as the PEDOT:PSS composite 21). However, the modification process and the modifier for thecarbon nanomaterial 22 are not limited in the instant disclosure. - Please refer to
FIG. 6 .FIG. 6 is a flow chart of the method for manufacturing the polymer composite material provided by one of the embodiments of the instant disclosure. The embodiment shown inFIG. 6 comprises mixing 3,4-ethylenedioxythiophene (EDOT), polystyrene sulfonate (PSS) and a carbon nanomaterial for forming a mixture (S100); and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene, polystyrene sulfonate (PSS) and the carbon nanomaterial for forming a product stream (S102). - Specifically, the
polymer composite material 2 provided by the instant disclosure can be formed by different methods. In the method for manufacturing thepolymer composite material 2 shown inFIG. 6 , thecarbon nanomaterial 22 can be graphenes or carbon nanotubes, and the graphenes or carbon nanotubes can be pre-treated, for example, by surface-modification. For example, graphene oxide (GO) or reduced graphene oxide (RGO) can be used as the material for manufacturing thepolymer composite material 2. - In one embodiment of the instant disclosure, 3,4-
ethylenedioxythiophene 211′, thepolystyrene sulfonate unit 212 and thecarbon nanomaterial 22 form thepolymer composite material 2 through an in-situ polymerization reaction. In the present embodiment, thecarbon nanomaterial 22 is reduced graphene oxides (RGO). The RGO and thepolystyrene sulfonate unit 212 are first dissolved in a solvent for forming a solution. Thepolystyrene sulfonate unit 212 in the solution can be served as the reactant for forming the PEDOT:PSS composite 21 and the dispersant for dispersing RGO. The solvent can be an organic solvent or water. - Next, 3,4-
ethylenedioxythiophene 211′ is added into the solution. The polymerization reaction can be initiated by adding an oxidant. Meanwhile, the mixture solution of 3,4-ethylenedioxythiophene 211′, thepolystyrene sulfonate unit 212 and thecarbon nanomaterial 22 can be heated and stirred. For example, by flowing air or oxygen through the mixture solution or adding iron (III) sulfate or sodium persulfate, the polymerization reaction is initiated. The use of a stir bar or a stirrer which provide mechanical stirring can facilitate the reaction. During the polymerization process, the reaction temperature can be controlled. For example, the mixture solution is heated to a temperature between 30 to 60° C. The time of stirring such as ultrasonic stirring can be 1 to 24 hours. - In addition, during the polymerization process, nitrogen gas can be input into the reaction environment to avoid the poly(3,4-ethylenedioxythiophene)
unit 211 being over-oxided and reduce the electric conductivity of thepolymer composite material 2 formed therefrom. After the reaction is completed, remained ions in the product stream can be removed by purifying processes such as a process using an ion exchange resin. - A dispersing agent can be further added into the mixture solution during the polymerization process to facilitate the dispersion and stability of the mixture solution. For example, the dispersing agent can be sodium dodecyl-sulfonate. For example, when the
carbon nanomaterial 22 is graphenes, the structure of the graphenes can be folded and forms a folded structure in the solvent, thereby reducing the possibility of combing (bonding) with the PEDOT:PSS composite 21. Therefore, a dispersing agent can solve the above problem to ensure the graphenes to be surface-modified with the PEDOT:PSS composite 21 for forming thepolymer composite material 2 provided by the instant disclosure. - Alternatively, in another embodiment of the instant disclosure, graphenes dissolved in a solvent can be directly mixed with the PEDOT:PSS composite 21 for bonding the graphenes with the PEDOT:PSS composite 21. In this embodiment, the graphenes can be graphene oxide (GO) or reduced graphene oxide (RGO). However, since GO has relatively low electric conductivity, when the GO is used as a material for forming the
polymer composite material 2, a further reduction reaction may be needed after mixing the GO with the PEDOT:PSS composite 21 for improving the electric conductivitiy of the graphenes. The reducing agent for performing the reduction reaction is, for example, hydrazine (N2H4). However, the instant disclosure is not limited thereto. - The
polymer composite material 2 manufactured by the method provided by the instant disclosure can be directly used as the material for forming the cathode of a capacitor. For example, thepolymer composite material 2 can be coated on the cathode of the capacitor through a film-forming process. Specifically, a capacitor unit can be impregnated into a solution comprising thepolymer composite material 2 for forming a conductive polymer layer on the surface thereof. - Alternatively, after step S102, the product stream can be further purified for separating the polymer material. Therefore, the purity of the
polymer composite material 2 can be ensured. For example, the product stream comprising thepolymer composite material 2 can be purified by at least one of centrifugation, dialysis, column chromatography, precipitation and ion exchange process. - After the step of purifying the product stream, the
polymer composite material 2 can be further homogeneously dispersed. For example, thepolymer composite material 2 can be homogeneously dispersed by at least one of a homogenous stirrer, ultrasonic grinder, high pressure homogenizer and ball mill. - Another embodiment of the instant disclosure provides another polymer composite material and method for manufacturing the same. Please refer to
FIG. 10 andFIG. 11 .FIG. 10 is the structural schematic view of the polymer composite material of this embodiment, andFIG. 11 is the flow chart of the method for manufacturing the polymer composite material. - Specifically, compared to the embodiment shown in
FIG. 5 andFIG. 6 , the poly(3,4-ethylenedioxythiophene)unit 211, thepolystyrene sulfonate unit 212 and thecarbon nanomaterial 22 are connected in a different manner to form thepolymer composite material 2. As shown inFIG. 10 , thepolystyrene sulfonate unit 212 is connected between thecarbon nanomaterial 22 and the poly(3,4-ethylenedioxythiophene)unit 211, and thepolystyrene sulfonate unit 212 is connected to thepolystyrene sulfonate unit 212 through a polymerization process. The method for manufacturing the polymer composite material of the present embodiment is described below. - As shown in
FIG. 11 , the method for manufacturing the polymer composite material comprises mixing thecarbon nanomaterial 22 and polystyrene sulfonate for forming a carbon nanomaterial modified by polystyrene sulfonate (S201); adding 3,4-ethylenedioxythiophene into a solution comprising the carbon nanomaterial modified by polystyrene sulfonate (S203); and initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene and the carbon nanomaterial modified by polystyrene sulfonate in the solution for forming a product stream comprising the polymer composite material (S205). - Please refer to
FIG. 10 . In thepolymer composite material 2 manufactured by the method described above, thepolystyrene sulfonate unit 212 is connected between thecarbon nanomaterial 22 and a poly(3,4-ethylenedioxythiophene)unit 211, and thepolystyrene sulfonate unit 212 is bonded to the poly(3,4-ethylenedioxythiophene)unit 211 through a polymerization reaction. Based on the weight of the polymer composite material, the content of thecarbon nanomaterial 22 is from 0.01-1.5 wt. %. - Specifically, step S201 is for forming the carbon nanomaterial modified with PSS. In the embodiment shown in
FIG. 10 andFIG. 11 , thecarbon nanomaterial 22 is carbon nanotubes. However, the type of thecarbon nanomaterial 22 is described in the previous embodiments and can be carbon nanotubes, carbon nanospheres, graphenes, carbon freak or any combination thereof. The carbon nanotubes shown inFIG. 10 can be formed by a thermal chemical vapor deposition process. - Before performing step S201, the carbon nanomaterial 22 (carbon nanotubes, CNT) can be surface-modified. In the present embodiment, the carbon nanotubes are treated with the mixture of concentrated sulfuric acid and nitric acid (HNO3:H2SO4=3:1, v/v) for bonding carboxylic groups on the surface of the carbon nanotubes, thereby forming CNT-COOH. Next, the carboxylic groups on the surface of the carbon nanotubes react with thionyl choloride (SOCl2) for forming carbon nanotubes modified with thinoyl chloride (CNT-COCl). The CNT-COCl is reflux by 2-hydroxyethtl-2′-bromoisobutyrate and toluene to synthesis carbon nanotubes with bromide groups (CNT-Br).
- After the activation process mentioned above, the activated carbon nanotubes (CNT-Br) are mixed with
polystyrene sulfonate 212. Specifically, thepolystyrene sulfonate 212 can be provided by sodium polystyrene sulfonate. For example, the reaction between the CNT-Br and the sodium polystyrene sulfonate can be carried out in a N, N-dimethylformamide solution with the copper bromide and PMDTA (N,N,N′,N′,N″-pentamethyldiethylenetriamine) as reaction additive. The reaction temperature in step S201 can be, for example, 120° C., and the reaction time can be about 30 hours. After the reaction is completed, the product can be separated by centrifugation or filtration, thereby obtained the carbon nanomaterial (carbon nanotube) modified by PSS. - In step S203, 3,4-ethylenedioxythiophene is added into the solution comprising the carbon nanomaterial modified by PSS. For example, the solvent for dissolving the carbon nanomaterial modified by PSS is water.
- In step S205, initiating a polymerization reaction to allow the carbon nanomaterial modified by PSS and the 3,4-ethylenedioxythiophene in the solution for forming a product stream comprising the
polymer composite material 2. After the polymerization reaction is completed, thepolymer composite material 2 comprises thepolystyrene sulfonate unit 212, the poly(3,4-ethylenedioxythiophene)unit 211 and thecarbon nanomaterial 22. The polymerization reaction can be carried out by chemical oxidative method under the presence of 3,4-ethylenedioxythiophene 211′ and polystyrene sulfonate. Ammonium persulfate (APS) can be added during the polymerization reaction, and mechanical stirring can be applied. For example, the product stream comprising thepolymer composite material 2 can be formed by mechanical stirring the solution for 48 hours under room temperature. - The structure of the
polymer composite material 2 formed by polymerization process is shown inFIG. 10 . Since the carbon nanotube is activated before performing step S201, the activated carbon nanotube is bonded to thepolystyrene sulfonate unit 212 through the modified functional groups on the surface thereof. In other words, in the embodiments of the instant disclosure, thecarbon nanomaterial 22 does not have to directly bond to thepolystyrene sulfonate unit 212. However, the instant disclosure is not limited thereto. In other words, thecarbon nanomaterial 22 can be directly bonded to thepolystyrene sulfonate unit 212. - As mentioned before, the
polymer composite material 2 manufactured by the method mentioned can be directly used as the material for the cathode of the capacitor. Alternatively, after step S203, the product stream can be further purified for separating thepolymer composite material 2. After the purifying step, thepolymer composite material 2 can further be homogeneously dispersed. The details for performing purification and homogeneously dispersion are described in the previous embodiments and are not described herein. - In addition, the instant disclosure further provides a method for manufacturing capacitor package structure, comprising: providing at least a capacitor in which the cathode of the capacitor comprises the polymer composite material manufactured by the method mentioned above; and packaging the capacitor by a package structure. A positive electrode pin and a negative electrode pin electrically connected to the capacitor are exposed from the package structure.
- Please refer to
FIG. 2 andFIG. 4 .FIG. 2 is a sectional view of one of the capacitor packaging provided by the embodiments of the instant disclosure; andFIG. 4 is a side schematic view of another capacitor package structure provided by the embodiments of the instant disclosure. Thecapacitor 1 can be thecapacitor unit 42 in the stacked type solidelectrolytic capacitor 4, or thewound type component 31 of the wound type solidelectrolytic capacitor 3. The package structure can be thepackage 43 in the stacked type solidelectrolytic capacitor 4, or thepackaging component 32 in the wound type solidelectrolytic capacitor 3. The details of the above components are described above regarding the capacitor package structure. - In summary, the effectiveness of the instant disclosure is that the
polymer composite material 2 of the instant disclosure comprises acarbon nanomaterial 22 of specific content and thus has excellent electric property. Therefore, the solid electrolytic capacitor comprising thepolymer composite 2 has improved conductivity, improved thermal stability, improved polymer impregnating rate, improved capacitance, reduced equivalent series resistance, reduced loss factor and reduced leak current. In addition, the method of manufacturing thepolymer composite material 2 of the instant disclosure has reduced manufacturing cost and hence, the overall manufacturing cost of the solid electrolytic capacitor is reduced. - The above-mentioned descriptions represent merely the exemplary embodiment of the present disclosure, without any intention to limit the scope of the instant disclosure thereto. Various equivalent changes, alterations or modifications based on the claims of the instant disclosure are all consequently viewed as being embraced by the scope of the instant disclosure.
Claims (9)
1. A method for manufacturing a polymer composite material, comprising:
mixing a carbon nanomaterial with polystyrene sulfonate to form a carbon nanomaterial modified by polystyrene sulfonate;
adding 3,4-ethylenedioxythiophene into a solution comprising the carbon nanomaterial modified by polystyrene sulfonate; and
initiating a polymerization reaction to allow a reaction between 3,4-ethylenedioxythiophene and the carbon nanomaterial modified by polystyrene sulfonate in the solution for forming a product stream comprising the polymer composite material, the polymer composite material comprising a poly(3,4-ethylenedioxythiophene) unit, a polystyrene sulfonate unit and the carbon nanomaterial;
wherein the polystyrene sulfonate unit is connected between the poly(3,4-ethylenedioxythiophene) unit and the carbon nanomaterial, and the polystyrene sulfonate unit is bonded to the poly(3,4-ethylenedioxythiophene) unit through a polymerization process, the content of the nanomaterial ranging from 0.01-1.5 wt. % based on the weight of the polymer composite material.
2. The method according to claim 1 , wherein the step of initiating the polymerization reaction further comprises adding an oxidant into the solution.
3. The method according to claim 1 , wherein the step of initiating the polymerization reaction further comprises homogeneously stirring the solution comprising 3,4-ethylenedioxythiophene.
4. The method according to claim 1 , wherein before the step of mixing the carbon nanomaterial with polystyrene sulfonate, the method further comprises activating a surface of the carbon nanomaterial.
5. The method according to claim 1 , wherein after the step of initiating the polymerization reaction, the method further comprises purifying the product stream for separating the polymer composite material.
6. The method according to claim 5 , wherein the step of purifying the product stream comprises purifying the product by at least one of centrifugation, dialysis, column chromatography, precipitation and ion exchange process.
7. The method according to claim 5 , wherein after the step of purifying the product stream, the method further comprises homogeneously dispersing the polymer composite material.
8. The method according to claim 7 , wherein the step of homogeneously dispersing the polymer composite material comprises homogeneously dispersing the polymer composite material by at least one of a homogenous stirrer, ultrasonic grinder, high pressure homogenizer and ball mill.
9. A method for manufacturing a capacitor package structure, comprising:
providing at least a capacitor having a cathode comprising the polymer composite material manufactured by the method according to claim 6 ; and
packaging the capacitor with a package structure, wherein a positive pin and a negative pin both electrically connected to the capacitor are exposed from the package structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/286,836 US20190194441A1 (en) | 2016-12-09 | 2019-02-27 | Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105140847 | 2016-12-09 | ||
TW105140847A TWI632169B (en) | 2016-12-09 | 2016-12-09 | Polymer composite material, method for manufacturing the polymer composite material, capacitor package structure using the polymer composite material and method for manufacturing the capacitor package structure |
US15/672,933 US10513602B2 (en) | 2016-12-09 | 2017-08-09 | Polymer composite material, method for manufacturing the polymer composite material, capacitor package structure using the polymer composite material and method for manufacturing the capacitor package structure |
US16/286,836 US20190194441A1 (en) | 2016-12-09 | 2019-02-27 | Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/672,933 Division US10513602B2 (en) | 2016-12-09 | 2017-08-09 | Polymer composite material, method for manufacturing the polymer composite material, capacitor package structure using the polymer composite material and method for manufacturing the capacitor package structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20190194441A1 true US20190194441A1 (en) | 2019-06-27 |
Family
ID=62488405
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/672,933 Active 2037-08-10 US10513602B2 (en) | 2016-12-09 | 2017-08-09 | Polymer composite material, method for manufacturing the polymer composite material, capacitor package structure using the polymer composite material and method for manufacturing the capacitor package structure |
US16/286,836 Abandoned US20190194441A1 (en) | 2016-12-09 | 2019-02-27 | Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/672,933 Active 2037-08-10 US10513602B2 (en) | 2016-12-09 | 2017-08-09 | Polymer composite material, method for manufacturing the polymer composite material, capacitor package structure using the polymer composite material and method for manufacturing the capacitor package structure |
Country Status (2)
Country | Link |
---|---|
US (2) | US10513602B2 (en) |
TW (1) | TWI632169B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022158961A1 (en) * | 2021-01-19 | 2022-07-28 | Nanoskunkworkx Sdn. Bhd. | A method for nanocomposite deposition |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI690957B (en) * | 2018-09-21 | 2020-04-11 | 鈺冠科技股份有限公司 | Stacked capacitor package structure without carbon layer and stacked capacitor thereof, and conductive polymer layer |
CN117586539B (en) * | 2024-01-18 | 2024-05-14 | 成都飞机工业(集团)有限责任公司 | Preparation method of high-conductivity self-supporting carbon nano tube composite film |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101089300B1 (en) * | 2008-11-20 | 2011-12-02 | 광 석 서 | CNT -polyX-4 Styrenesulfonate composites and CNT - Conductive polymer composites produced with the same |
US9589733B2 (en) * | 2013-12-17 | 2017-03-07 | Avx Corporation | Stable solid electrolytic capacitor containing a nanocomposite |
TWI546835B (en) * | 2014-10-28 | 2016-08-21 | 鈺邦科技股份有限公司 | Solid electrolytic capacitor with improved metallic anode and method for manufacturing the same |
-
2016
- 2016-12-09 TW TW105140847A patent/TWI632169B/en not_active IP Right Cessation
-
2017
- 2017-08-09 US US15/672,933 patent/US10513602B2/en active Active
-
2019
- 2019-02-27 US US16/286,836 patent/US20190194441A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022158961A1 (en) * | 2021-01-19 | 2022-07-28 | Nanoskunkworkx Sdn. Bhd. | A method for nanocomposite deposition |
Also Published As
Publication number | Publication date |
---|---|
TW201821470A (en) | 2018-06-16 |
US20180163040A1 (en) | 2018-06-14 |
TWI632169B (en) | 2018-08-11 |
US10513602B2 (en) | 2019-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20190194441A1 (en) | Method for manufacturing a polymer composite material and method for manufacturing a capacitor package structure using the polymer composite material | |
Li et al. | Functional gels based on chemically modified graphenes | |
CN104130719B (en) | A kind of graphene oxide conductive adhesive and preparation and application thereof | |
Kim et al. | High performance flexible double-sided micro-supercapacitors with an organic gel electrolyte containing a redox-active additive | |
JP2007529586A (en) | Composition comprising a colloidal conductive polymer and carbon | |
Wang et al. | A MXene‐coated activated carbon cloth for flexible solid‐state supercapacitor | |
Obraztsov et al. | Graphene Acid for Lithium‐Ion Batteries—Carboxylation Boosts Storage Capacity in Graphene | |
JP4315038B2 (en) | Solid electrolytic capacitor | |
Xu et al. | Building a poly (epoxy propylimidazolium ionic liquid)/graphene hybrid through π cation–π interaction for fabricating high-k polymer composites with low dielectric loss and percolation threshold | |
Alipoori et al. | Graphene oxide: An effective ionic conductivity promoter for phosphoric acid-doped poly (vinyl alcohol) gel electrolytes | |
CN101271781B (en) | Solid electrolysis container | |
US20190019626A1 (en) | Polymer composite material for solid capacitor, capacitor package structure using the same and manufacturing method thereof | |
CN102308339A (en) | Electrically conductive polymer composition and process for production thereof and solid electrolytic capacitor utilizing electrically conductive polymer composition | |
Bolagam et al. | Design and synthesis of ternary composite of polyaniline-sulfonated graphene oxide-TiO 2 nanorods: a highly stable electrode material for supercapacitor | |
Wu et al. | Ionogel electrolyte with dynamic metal-ligand interactions enabled self-healable supercapacitor with high energy density | |
Mohanta et al. | Li‐ion conductivity in PEO‐graphene oxide nanocomposite polymer electrolytes: A study on effect of the counter anion | |
KR20110040090A (en) | Conductivity paste composition of low temperature plasticity for gravure printing | |
CN106159199A (en) | A kind of 3D Graphene electrodes for highly dense accumulator, prepare and apply | |
JP4418198B2 (en) | Solid electrolytic capacitor and manufacturing method thereof | |
Gottam et al. | Composite electrode material of MoO3‐MC‐SiO2‐PANI: Aqueous supercapacitor cell with high energy density, 1 V and 250,000 CD cycles | |
JP4831108B2 (en) | Manufacturing method of solid electrolytic capacitor | |
Ghebache et al. | Effect of hematite on the energy storage performance of polyaniline/zeolite HY/α-Fe2O3 nanocomposite supercapacitor electrode | |
Wang et al. | Wood shavings combined with polyaniline and carbon nanotube film for flexible high-performance energy storage devices | |
TWI690960B (en) | Capacitor, capacitor package structure and method of manufacturing the same | |
JP5355313B2 (en) | Process for producing organic solvent-based conductive polymer dispersion and its application |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: APAQ TECHNOLOGY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIN, CHIEH;LIN, CHING-FENG;CHEN, MING-TSUNG;REEL/FRAME:048451/0410 Effective date: 20190221 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |