EP1340237A2 - Energiespeicherzellen mit elektrochemischer doppelschicht mit hoh energie- und leitungsdichte - Google Patents
Energiespeicherzellen mit elektrochemischer doppelschicht mit hoh energie- und leitungsdichteInfo
- Publication number
- EP1340237A2 EP1340237A2 EP01997822A EP01997822A EP1340237A2 EP 1340237 A2 EP1340237 A2 EP 1340237A2 EP 01997822 A EP01997822 A EP 01997822A EP 01997822 A EP01997822 A EP 01997822A EP 1340237 A2 EP1340237 A2 EP 1340237A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- activated carbon
- volume
- electrode
- wood
- energy storage
- 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.)
- Withdrawn
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 19
- 210000000352 storage cell Anatomy 0.000 title claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 120
- 239000002023 wood Substances 0.000 claims abstract description 28
- 239000011148 porous material Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 22
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 14
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 14
- 241000018646 Pinus brutia Species 0.000 claims abstract description 14
- 239000011122 softwood Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000003610 charcoal Substances 0.000 claims description 13
- 210000004027 cell Anatomy 0.000 claims description 11
- 239000002904 solvent Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 238000007725 thermal activation Methods 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 150000005846 sugar alcohols Polymers 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims 2
- 239000003990 capacitor Substances 0.000 abstract description 14
- 239000002002 slurry Substances 0.000 abstract 1
- 238000001994 activation Methods 0.000 description 13
- 230000004913 activation Effects 0.000 description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 8
- 239000002243 precursor Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- -1 polyoxyethylene Polymers 0.000 description 5
- WECIKJKLCDCIMY-UHFFFAOYSA-N 2-chloro-n-(2-cyanoethyl)acetamide Chemical compound ClCC(=O)NCCC#N WECIKJKLCDCIMY-UHFFFAOYSA-N 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- 210000004534 cecum Anatomy 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920001451 polypropylene glycol Polymers 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000012190 activator Substances 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
- 239000003125 aqueous solvent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010416 ion conductor Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004769 chrono-potentiometry Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000006479 redox reaction 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
- 239000000243 solution Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a process for the preparation of activated carbon based on wood, preferably soft wood, and in particular pine wood, having a particular porous structure for the manufacture of electrodes for energy storage cells to electrochemical double layer.
- the invention also relates to the electrodes thus obtained as well as to the energy storage cells with a double electrochemical layer comprising such electrodes, as well as to a method of manufacturing these electrodes.
- the electrochemical energy storage can be carried out by means of three different devices each having their own characteristics.
- the two non-polarizable electrodes are separated by an ion conductor. Charge transfers are carried out by slow redox reactions. The maximum available power is therefore low ( ⁇ 400W / kg). On the other hand, the stored energy is important (> 30 WH / kg).
- the two polarizable electrodes are separated by a thin dielectric.
- the operating principle is based on the formation of an electric double layer by accumulation of charges within the electrodes on either side of the dielectric. This phenomenon is very rapid and allows charge-discharge periods of the order of a millisecond.
- the impulse power supplied by such systems is therefore extremely high (> 10 W / kg).
- the quantity of stored energy is low ( ⁇ 10 ⁇ 2 Wh / kg).
- the two polarizable electrodes with a large specific surface are separated by an ionic conductor.
- the supercapacitor is presented as an intermediate device between the accumulator and the capacitor.
- capacitors can be described in terms of energy density (kilowatt hour / kg) and power density (watts / kg) characteristics.
- High energy density capacitors store a relatively high capacitance which is discharged slowly over a period of a few minutes.
- capacitors with high power density can deliver their energy quickly (in a few milliseconds).
- Various practical applications have different requirements in terms of energy and power. Through for example, memory backup devices require a reasonably high energy density, but do not require energy to be delivered quickly (low power, long unloading time).
- an application such as starting an automobile engine requires very high power and most of the energy must be delivered in a few milliseconds.
- Other applications require combinations of the energy and power densities which are intermediate between these two extremes.
- Electric energy storage devices comprising electrodes based on activated carbon derived from lignocellulosic materials. These devices which are generally known as an electrochemical double-layer carbon capacitor, or CDLCs, usually consist of a pair of electrodes (at least one which is a carbon paste electrode), a separator, and a conductive collector of current impermeable to ions.
- CDLCs electrochemical double-layer carbon capacitor
- Activated charcoals are characterized by a large specific total surface (generally in the range 500-2500 m 2 / g). They are differentiated by their origin or precursor (coal, wood, fruit shells, etc.) as well as by the type of activation they have undergone, physical or chemical.
- the pores in activated carbon are classified according to their size in micropores (diameter ⁇ 2 nm), mesopores (diameter 2-50 nm) or macropores (diameter> 50 nm).
- CDLCs with high energy density obtained from activated charcoals having a particular porous structure consisting essentially of micropores are also known from US 5,926,361.
- CDLCs with high power density from activated carbon with an equivalent content of mesopores are also known from US 5,905,629.
- These coals are obtained by an activation process followed by a heat treatment of the activated carbon precursor.
- these CDLCs are not suitable for intermediate applications requiring both a high energy density and rapid energy delivery. The coal manufacturing process is also expensive.
- EP 1049116 discloses coals having a pore volume of 0.3 to 2.0 cm 3 / g, 10 to 60% of which are micropores, 20 to 70% of mesopores and not more than 20%) of macropores and with a specific surface of 1000 to 2500 m 2 / g.
- the coals described are exclusively obtained from polymers.
- the present invention therefore aims to provide a method of manufacturing activated charcoal having a porosity profile suitable for the electrodes of energy storage cells with double electrochemical layer.
- An object of the invention is therefore to propose a method for manufacturing a porous carbon material. Another object of the invention is to provide an electrode based on such materials and energy storage cells having a better compromise between the power density and the energy density compared to cells of this type already existing. Another object of the invention is a method of manufacturing such improved energy storage cells.
- energy storage cells means any electrochemical energy storage device, supercapacitors, and in particular CDLCs.
- the cells according to the invention are obtained using activated charcoals based on wood, preferably soft wood, and in particular pine wood which have a particular porous distribution and in particular have mesopore and micropore contents of less than 75%. of the total pore volume.
- This particular porous distribution is partly due to the quality of the raw material, the wood, preferably the soft wood, and in particular the pine wood.
- the coals obtained from pine wood, which are particularly preferred, are further characterized by high purity.
- the activated carbon has a mesopore content of less than 75%, preferably between 40 and 60%> relative to the total volume of the pores.
- the volume of mesopores of the activated carbon used is preferably between 0.4 and 0.8 cm 3 / g.
- these coals have a pore volume greater than 0.8 cm 3 / g, preferably greater than 1 cm 3 / g, a median pore width of 15 to 50 nm and a specific surface greater than 800 m 2 / g.
- activated carbons also preferably have (as a function of the total pore volume) a macropore content of less than 0.3 cm 3 / g.
- the relative content of macropores is preferably less than the content of micropores and mesopores.
- So activated charcoal advantageously comprises less than 25%, preferably less than 10% and even more preferably less than 1% of macropores relative to the total pore volume.
- coals are subjected to an activation process so as to increase the surface area of the natural carbonaceous material.
- activation process is carried out either by a chemical process or by a thermal process. Examples of the activation process are given, for example, in US Patents 4,107,084; 4,155,878; 5,212,144; and
- Effective porosity of activated carbon produced by thermal activation is the result of gasification of carbon at high temperature (after initial carbonization of the raw material), while the porosity of products activated by chemical dehydration / condensation reaction occur at low temperature.
- the activated carbon precursor used according to the invention is wood, preferably softwood, and in particular pine wood.
- the wood used may be, for example, in the form of wood chips, wood flour, wood dust, sawdust, and combinations thereof.
- Activated carbon can be obtained by chemical activation or preferably by thermal or physical activation.
- Chemical activation is generally carried out industrially in a simple oven.
- the precursor of the raw material is impregnated with a chemical activating agent, and the mixture is heated to a temperature of 450 ° C-700 ° C.
- Chemical activators reduce the formation of tar and other by-products, thereby increasing the yield.
- Suitable chemical activators include alkali metal hydroxides, carbonates, sulfides, and sulfates; alkaline earth carbonates, chlorides, and phosphates; phosphoric acid; polyphosphoric acid; zinc chloride; sulfuric acid; fuming sulfuric acid; and combinations thereof.
- Preferred among these agents are phosphoric acid and zinc chloride. The most preferred among all is phosphoric acid.
- the precursor is impregnated with the activating agent and then activated at around 550 ° C.
- the activated carbon is preferably obtained by thermal activation.
- the precursor material is subjected to a thermal carbonization treatment at a temperature between 500 and 800 ° C. in order to obtain charcoal which is subsequently activated at a temperature above 700 ° C., preferably between 800 and 1100 ° C, and even more preferably at a temperature between 950 and 1050 ° C.
- the thermal activation of charcoal takes place in a thin layer.
- thin is meant a layer with a thickness of approximately 2 to 5 cm.
- the activation is preferably carried out in an oven in which the precursor material circulates by gravity from top to bottom.
- the activation is carried out in the presence of water vapor and / or carbon dioxide.
- Activated carbons capable of being obtained according to the process described above are particularly preferred for the manufacture of electrodes of energy storage cells with a double electrochemical layer.
- a typical CDLC is composed of: (1) a pair of electrodes of which at least one (and preferably both) is a carbon paste electrode, (2) a porous ion-conducting separator, and (3) a collector impermeable to ions to ensure electrical contact with the electrodes and an electrolyte.
- the cell preferably has an energy density greater than 3 Wh / kg, in particular greater than 4 Wh / kg and an energy power greater than 4 kW / kg, in particular greater than 5 kW / kg.
- the new energy storage cells with a better compromise of power / energy densities are derived from activated carbon based on wood. These activated carbons are characterized in that they have a rate of micropores relative to the total volume of the pores of less than 75%, preferably between 20 and 40% relative to the total volume of the pores. Preferably, the volume of micropores of the activated carbon used is between 0.2 and 0.6 cm 3 / g.
- the method of manufacturing electrodes for CDLCs with high power and energy density comprises the application of an activated carbon derived from wood having a volume of mesopores and micropores as defined above on a support.
- the activated carbon is preferably ground to a size expressed in d 50 of approximately 30 micrometers and preferably in a dso of approximately 10 micrometers.
- the application is carried out by previously preparing a slip comprising activated carbon in powder form, a binder and a solvent.
- the slip is applied to the support and then the solvent is evaporated to form a film.
- the activated carbons are mixed with a binder, such as a polymeric binder, in an aqueous or organic solvent.
- a binder such as a polymeric binder
- polyethers such as polyoxyethylene (POE), polyoxypropylene (POP) and / or polyalcohols such as polyvinyl alcohol (PVA), ethylene-vinyl acetate copolymers (EVA).
- POE polyoxyethylene
- POP polyoxypropylene
- PVA polyalcohols
- PVA polyvinyl alcohol
- EVA ethylene-vinyl acetate copolymers
- the solvent can be any aqueous or organic solvent suitable for dissolving the binder used.
- solvent is for example acetonitrile for polymeric binders with POE, POP, PVA and / or EVA mud.
- the activated carbon is mixed with the polymer in a weight ratio of 10/90 to 60/40, preferably from 30/70 to 50/50. Then, the paste obtained is applied to a support by coating.
- the coating is advantageous for the coating to be carried out on a peelable support, for example using a template, generally of planar shape.
- the solvent is evaporated, for example in a hood.
- a film is obtained, the thickness of which depends in particular on the concentration of the coal paste and the deposition parameters, but which is generally between a few micrometers and a millimeter.
- the thickness is between 100 and 500 micrometers, and more preferably, it is between 150 and 250 micrometers.
- Suitable electrolytes to be used to produce high power and energy density CDLCs having at least one activated carbon based electrode having the capacity to deliver improved energy and power densities consist of any highly conductive medium.
- ions such as an aqueous solution of an acid, a salt or a base.
- non-aqueous electrolytes in which water is not used as a solvent
- Et NBF 4 tetraethylammonium tetrafluoroborate
- the electrolyte can have three general functions: as a promoter of the conductivity of ions, as a source of ions, and if necessary, as a binder for carbon particles. Sufficient electrolyte should be used to fulfill these functions (although a separate binder may be used to provide the binding function).
- the carbon paste comprises activated carbon, a binder and a solvent.
- One of the electrodes can be made of another material known in the art.
- the ion impermeable current collector (3) can be any electrically conductive material which is non-ionic conductive. Satisfactory materials to be used to produce these collectors include: coal, copper, lead, aluminum, gold, silver, iron, nickel, tantalum, conductive polymers, non-conductive polymers filled with conductive material to make the polymer electrically conductive, and the like.
- the collector (3) should be electrically connected to an electrode (1).
- a separator (2) Between the electrodes is a separator (2), generally made of a highly porous material, the functions of which are to provide electronic isolation between the electrodes (1) while letting the ions of the electrolyte pass.
- the separator pores (2) must be small enough to prevent electrode-electrode contact between the opposite electrodes (contact would result in a short circuit and rapid loss of the charges accumulated in the electrode).
- any conventional battery separator can be used in a CDLC with high power and energy density.
- the separator (2) can be an ion-permeable membrane that allows ions to pass through, but prevents electrons from passing through.
- the activated carbons of the following examples 2S to 5 S sold by the applicant are obtained industrially according to the method of claim 1 by adjusting the partial pressure of water vapor and increasing the residence time in the oven making it possible to go from quality 2S to 3S to 4S and to 5S by developing porosity more and more.
- Charcoals derived from thermally activated pine wood of 2S quality, available from CECA, are used to produce coal paste electrodes as described below. This activated carbon is obtained by activation in a thin layer at a temperature of 1000 ° C. in the presence of water vapor.
- a film is obtained whose dry thickness is approximately 200 micrometers.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated charcoal derived from 3S quality pine wood, available from CECA. This activated carbon is activated in a thin layer at a temperature of 1000 ° C in the presence of water vapor.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated charcoal derived from 4S quality pine wood, available from CECA. This activated carbon is obtained by activation at a temperature of 1000 ° C in the presence of water vapor.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated charcoal derived from 5S quality pine wood, available from CECA. This activated carbon is obtained by activation at a temperature of 1000 ° C in the presence of water vapor.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using the activated carbon OSAKA M15 (available from OSAKA GAS Co. Ltd.) and obtained from pitch mesophase.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated charcoal of quality OSAKA M20 (available from OSAKA GAS Co. Ltd.) and obtained from pitch mesophase.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated carbon of quality OSAKA M30 (available from OSAKA GAS Co. Ltd.) and obtained from pitch mesophase.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated carbon of PUREF-LOW quality, available from (Norit Nederland) and obtained from mineral charcoal.
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated carbon of quality Norit SX +, available from (Norit Nederland) and obtained from peat.
- EXAMPLE 10 (comparison example)
- Charcoal paste electrodes are prepared in the same manner as described in Example 1 using activated carbon of quality Norit SX Ultra, available from (Norit Nederland) and obtained from peat.
- the active surface of the samples is determined by adsorption / desorption of nitrogen at 77 K.
- the electrodes prepared according to Examples 1 to 10 are then used to mount a measuring cell in order to evaluate their performance in a CDLC in terms of power and energy density.
- the electrode is first impregnated with a liquid organic electrolyte, a solution of tetraethyl ammonium tetrafluoroborate at 0.6M in ⁇ - butyrolactone for 1 h 30 min at atmospheric pressure.
- the impregnated electrodes are used to mount a capacitor as follows.
- a pair of electrodes is each placed on a treated aluminum plate and then assembled face to face, separated by a PUMA 50 / 0.30 separator paper (available from Bolloré).
- the two electrodes are connected to a potentiostat, one being connected first to a calibrated spring.
- a double electrochemical layer spontaneously forms at each of the electrode / electrolyte interfaces by accumulation of ionic species on the side of the electrolyte and of electric charges on the side. of the electrode, the amount of charge thus accumulated is proportional to the applied voltage and the surface capacity of the electrodes.
- Each double layer is characterized by its capacity. The overall system is therefore defined by 2 capacities in series and the total capacity is expressed by:
- the stored energy is directly proportional to the total capacity of the global system.
- the total resistance or the series resistance of a capacitor is the second major parameter that characterizes the system.
- the power of the CDLC is directly evaluated from its value.
- the power and energy density of the electrodes mounted in capacitors is evaluated by chronopotentiometry.
- the current density used is 1.5 mA cm and the limits of the intensiostatic cycling are 0 and 2.5 V. From the curve obtained, the series resistance and the capacitance of the capacitor are deduced.
- the series resistance is calculated from the measurement of the ohmic drop at the start of the discharge.
- the capacitance of the capacitor is determined from the slope of the discharge curve.
- the stored energy is directly proportional to this capacity in accordance with
- the 2 cm 2 electrodes are assembled in measuring cells to assess the energy and power density.
- the measurement results are presented in Table 3 below.
- the electrodes according to the invention have a balanced power and energy density, and that therefore this type of electrodes is suitable for CDLCs for intermediate applications requiring both a good density of energy and rapid energy delivery.
- coals that deliver improved power and energy density are useful for producing the carbon paste used in CDLCs, these coals can also be useful in other types of electrical devices in which activated carbon is used as electrode material (such as batteries, "fuel cells” or “fuel cells”, etc.).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0015283 | 2000-11-27 | ||
FR0015283A FR2817387B1 (fr) | 2000-11-27 | 2000-11-27 | Cellules de stockage d'energie a double couche electrochimique a haute densite d'energie et forte densite de puissance |
PCT/FR2001/003724 WO2002043088A2 (fr) | 2000-11-27 | 2001-11-26 | Cellules de stockage d'energie a double couche electrochimique a haute densite d'energie et forte densite de puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1340237A2 true EP1340237A2 (de) | 2003-09-03 |
Family
ID=8856908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01997822A Withdrawn EP1340237A2 (de) | 2000-11-27 | 2001-11-26 | Energiespeicherzellen mit elektrochemischer doppelschicht mit hoh energie- und leitungsdichte |
Country Status (12)
Country | Link |
---|---|
US (1) | US20050014643A1 (de) |
EP (1) | EP1340237A2 (de) |
JP (1) | JP2004514637A (de) |
KR (1) | KR20030051875A (de) |
CN (1) | CN1554102A (de) |
AU (1) | AU2002222044A1 (de) |
BR (1) | BR0115643A (de) |
CA (1) | CA2430263A1 (de) |
FR (1) | FR2817387B1 (de) |
MX (1) | MXPA03004524A (de) |
RU (1) | RU2003119081A (de) |
WO (1) | WO2002043088A2 (de) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6991671B2 (en) | 2002-12-09 | 2006-01-31 | Advanced Technology Materials, Inc. | Rectangular parallelepiped fluid storage and dispensing vessel |
US8002880B2 (en) | 2002-12-10 | 2011-08-23 | Advanced Technology Materials, Inc. | Gas storage and dispensing system with monolithic carbon adsorbent |
JP4964404B2 (ja) * | 2003-03-07 | 2012-06-27 | 株式会社デンソー | リチウムイオン二次電池用正極およびリチウムイオン二次電池 |
FR2867600B1 (fr) * | 2004-03-09 | 2006-06-23 | Arkema | Procede de fabrication d'electrode, electrode ainsi obtenue et supercondensateur la comprenant |
CN1938802B (zh) * | 2004-03-31 | 2011-09-28 | 富士重工业株式会社 | 使用中孔炭材料作为负极的有机电解质电容器 |
JP5551144B2 (ja) * | 2004-07-30 | 2014-07-16 | 東洋炭素株式会社 | 活性炭およびその製法 |
JP4779327B2 (ja) * | 2004-09-14 | 2011-09-28 | 株式会社デンソー | リチウム二次電池用電極およびこの電極を用いたリチウム二次電池 |
JP2008540944A (ja) * | 2005-05-03 | 2008-11-20 | アドバンスド テクノロジー マテリアルズ,インコーポレイテッド | 流体保存・分配システム及びそれを含む流体供給プロセス |
FR2886045B1 (fr) * | 2005-05-23 | 2007-07-13 | Ceca Sa Sa | Electrode pour systemes de stockage d'energie, son procede de fabrication et systeme de stockage d'energie la comprenant |
US7723262B2 (en) | 2005-11-21 | 2010-05-25 | Energ2, Llc | Activated carbon cryogels and related methods |
EP1986763A4 (de) * | 2006-01-30 | 2009-12-23 | Advanced Tech Materials | Nanoporöse kohlenstoffmaterialien sowie systeme und verfahren zu deren anwendung |
CN101595541B (zh) * | 2006-10-17 | 2012-02-15 | 麦斯韦尔技术股份有限公司 | 用于能量存储装置的电极及其制备方法 |
US7835136B2 (en) | 2006-11-15 | 2010-11-16 | Energ2, Inc. | Electric double layer capacitance device |
US8539781B2 (en) * | 2007-06-22 | 2013-09-24 | Advanced Technology Materials, Inc. | Component for solar adsorption refrigeration system and method of making such component |
CN102160135A (zh) * | 2008-08-20 | 2011-08-17 | 昆士兰大学 | 纳米多孔碳电极以及由其形成的超级电容器 |
US8318356B2 (en) * | 2008-12-15 | 2012-11-27 | Corning Incorporated | Activated carbon materials for high energy density ultracapacitors |
US8784764B2 (en) * | 2008-12-15 | 2014-07-22 | Corning Incorporated | Methods for forming activated carbon material for high energy density ultracapacitors |
US8293818B2 (en) | 2009-04-08 | 2012-10-23 | Energ2 Technologies, Inc. | Manufacturing methods for the production of carbon materials |
US10193159B2 (en) | 2009-04-09 | 2019-01-29 | Nissan Motor Co., Ltd. | Current collector for secondary battery and secondary battery using the same |
CN105226284B (zh) * | 2009-07-01 | 2017-11-28 | 巴斯夫欧洲公司 | 超纯合成碳材料 |
US20110159375A1 (en) * | 2009-12-11 | 2011-06-30 | Energ2, Inc. | Carbon materials comprising an electrochemical modifier |
US8482901B2 (en) * | 2010-01-22 | 2013-07-09 | Corning Incorporated | Microporous activated carbon for EDLCS |
US8916296B2 (en) | 2010-03-12 | 2014-12-23 | Energ2 Technologies, Inc. | Mesoporous carbon materials comprising bifunctional catalysts |
CN101964258A (zh) * | 2010-07-29 | 2011-02-02 | 兰州理工大学 | 用于超级电容器电极的多孔成型木炭的制备方法 |
WO2012045002A1 (en) | 2010-09-30 | 2012-04-05 | Energ2 Technologies, Inc. | Enhanced packing of energy storage particles |
CN103370756B (zh) * | 2010-12-28 | 2018-05-11 | 巴斯福股份公司 | 包含增强的电化学特性的碳材料 |
US8679231B2 (en) | 2011-01-19 | 2014-03-25 | Advanced Technology Materials, Inc. | PVDF pyrolyzate adsorbent and gas storage and dispensing system utilizing same |
CN102214514A (zh) * | 2011-03-21 | 2011-10-12 | 中南大学 | 一种超级电容器用高比电容活性炭电极材料的生产方法 |
US20120262127A1 (en) | 2011-04-15 | 2012-10-18 | Energ2 Technologies, Inc. | Flow ultracapacitor |
CN102774833A (zh) * | 2011-05-10 | 2012-11-14 | 西北农林科技大学 | 由软木制备活性炭的方法 |
CN103947017B (zh) | 2011-06-03 | 2017-11-17 | 巴斯福股份公司 | 用于混合能量存储装置中的碳‑铅共混物 |
US9409777B2 (en) | 2012-02-09 | 2016-08-09 | Basf Se | Preparation of polymeric resins and carbon materials |
JP5935039B2 (ja) * | 2012-02-23 | 2016-06-15 | 地方独立行政法人青森県産業技術センター | 活性炭製造方法 |
JP6161328B2 (ja) * | 2012-05-18 | 2017-07-12 | Jsr株式会社 | 電極活物質、電極及び蓄電デバイス |
WO2013181295A1 (en) | 2012-05-29 | 2013-12-05 | Advanced Technology Materials, Inc. | Carbon adsorbent for hydrogen sulfide removal from gases containing same, and regeneration of adsorbent |
JP6161272B2 (ja) * | 2012-12-04 | 2017-07-12 | Jmエナジー株式会社 | 蓄電デバイス |
EP2930728B1 (de) * | 2012-12-06 | 2020-02-05 | Asahi Kasei Kabushiki Kaisha | Wasserfreies lithiumspeicherelement |
WO2014143213A1 (en) | 2013-03-14 | 2014-09-18 | Energ2 Technologies, Inc. | Composite carbon materials comprising lithium alloying electrochemical modifiers |
US9607776B2 (en) | 2013-10-24 | 2017-03-28 | Corning Incorporated | Ultracapacitor with improved aging performance |
US10195583B2 (en) | 2013-11-05 | 2019-02-05 | Group 14 Technologies, Inc. | Carbon-based compositions with highly efficient volumetric gas sorption |
WO2015137980A1 (en) | 2014-03-14 | 2015-09-17 | Energ2 Technologies, Inc. | Novel methods for sol-gel polymerization in absence of solvent and creation of tunable carbon structure from same |
JP2015198169A (ja) * | 2014-04-01 | 2015-11-09 | 旭化成株式会社 | Edlc用電極及びedlc |
JP2015198164A (ja) * | 2014-04-01 | 2015-11-09 | 旭化成株式会社 | 非水系リチウム型蓄電素子 |
US10763501B2 (en) | 2015-08-14 | 2020-09-01 | Group14 Technologies, Inc. | Nano-featured porous silicon materials |
EP4286355A3 (de) | 2015-08-28 | 2024-05-01 | Group14 Technologies, Inc. | Neuartige materialien mit extrem langlebiger einlagerung von lithium und herstellungsverfahren dafür |
CN109155202B (zh) * | 2016-05-20 | 2021-03-09 | 阿维科斯公司 | 多电池超级电容器 |
CN115579248A (zh) * | 2016-05-20 | 2023-01-06 | 京瓷Avx元器件公司 | 在高温下使用的超级电容器 |
CN108369870A (zh) * | 2016-06-06 | 2018-08-03 | 住友电气工业株式会社 | 用于双电层电容器电极的多孔碳材料、其制造方法以及双电层电容器电极 |
US11830672B2 (en) * | 2016-11-23 | 2023-11-28 | KYOCERA AVX Components Corporation | Ultracapacitor for use in a solder reflow process |
CN106744791A (zh) * | 2016-11-30 | 2017-05-31 | 中国工程物理研究院化工材料研究所 | 蜂窝状多孔碳材料的制备方法 |
KR20180074258A (ko) * | 2016-12-23 | 2018-07-03 | 희성금속 주식회사 | 팔라듐/탄소 촉매 제조에 사용되는 활성탄과 그 제조 방법 및 이를 이용하여 제조된 팔라듐/탄소 촉매 |
WO2018165610A1 (en) | 2017-03-09 | 2018-09-13 | Group 14 Technologies, Inc. | Decomposition of silicon-containing precursors on porous scaffold materials |
GB2562064A (en) * | 2017-05-02 | 2018-11-07 | Zapgo Ltd | Supercapacitor device |
CN109119602B (zh) * | 2018-06-29 | 2020-10-02 | 浙江工业大学 | 一种多孔木碳改性金属锂负极材料的制备方法 |
CN109534339A (zh) * | 2018-11-21 | 2019-03-29 | 常熟理工学院 | 一种松鳞基活性炭及其纳米复合材料的制备方法 |
KR102313771B1 (ko) * | 2020-01-07 | 2021-10-20 | 에스케이씨 주식회사 | 가공 탄소 및 이의 제조방법 |
US20230121484A1 (en) * | 2020-03-06 | 2023-04-20 | Sony Group Corporation | Unwanted matter removal device, unwanted matter removal method, separation device and separation method |
US11639292B2 (en) | 2020-08-18 | 2023-05-02 | Group14 Technologies, Inc. | Particulate composite materials |
US11335903B2 (en) | 2020-08-18 | 2022-05-17 | Group14 Technologies, Inc. | Highly efficient manufacturing of silicon-carbon composites materials comprising ultra low z |
US11174167B1 (en) | 2020-08-18 | 2021-11-16 | Group14 Technologies, Inc. | Silicon carbon composites comprising ultra low Z |
US20230411628A1 (en) * | 2022-06-16 | 2023-12-21 | Robert Bosch Gmbh | Electrochemical cell catalyst layers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2856162B2 (ja) * | 1996-07-30 | 1999-02-10 | 日本電気株式会社 | 電気二重層コンデンサ及びその製造方法 |
US4542444A (en) * | 1983-12-27 | 1985-09-17 | The Standard Oil Company | Double layer energy storage device |
CN1048954C (zh) * | 1995-03-30 | 2000-02-02 | 日本酸素株式会社 | 多孔性碳质材料、其制造方法及其用途 |
US5843393A (en) * | 1997-07-28 | 1998-12-01 | Motorola, Inc. | Carbon electrode material for electrochemical cells and method of making same |
US6865068B1 (en) * | 1999-04-30 | 2005-03-08 | Asahi Glass Company, Limited | Carbonaceous material, its production process and electric double layer capacitor employing it |
-
2000
- 2000-11-27 FR FR0015283A patent/FR2817387B1/fr not_active Expired - Fee Related
-
2001
- 2001-11-26 KR KR10-2003-7007006A patent/KR20030051875A/ko not_active Application Discontinuation
- 2001-11-26 CA CA002430263A patent/CA2430263A1/fr not_active Abandoned
- 2001-11-26 RU RU2003119081/09A patent/RU2003119081A/ru not_active Application Discontinuation
- 2001-11-26 EP EP01997822A patent/EP1340237A2/de not_active Withdrawn
- 2001-11-26 JP JP2002544737A patent/JP2004514637A/ja not_active Withdrawn
- 2001-11-26 AU AU2002222044A patent/AU2002222044A1/en not_active Abandoned
- 2001-11-26 CN CNA018222382A patent/CN1554102A/zh active Pending
- 2001-11-26 US US10/432,590 patent/US20050014643A1/en not_active Abandoned
- 2001-11-26 MX MXPA03004524A patent/MXPA03004524A/es not_active Application Discontinuation
- 2001-11-26 BR BR0115643-8A patent/BR0115643A/pt not_active Application Discontinuation
- 2001-11-26 WO PCT/FR2001/003724 patent/WO2002043088A2/fr not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO0243088A2 * |
Also Published As
Publication number | Publication date |
---|---|
AU2002222044A1 (en) | 2002-06-03 |
BR0115643A (pt) | 2003-09-02 |
CN1554102A (zh) | 2004-12-08 |
FR2817387B1 (fr) | 2003-03-21 |
WO2002043088A3 (fr) | 2002-12-27 |
KR20030051875A (ko) | 2003-06-25 |
JP2004514637A (ja) | 2004-05-20 |
CA2430263A1 (fr) | 2002-05-30 |
MXPA03004524A (es) | 2003-09-10 |
FR2817387A1 (fr) | 2002-05-31 |
US20050014643A1 (en) | 2005-01-20 |
RU2003119081A (ru) | 2005-01-10 |
WO2002043088A2 (fr) | 2002-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2002043088A2 (fr) | Cellules de stockage d'energie a double couche electrochimique a haute densite d'energie et forte densite de puissance | |
WO2005088657A2 (fr) | Procede de fabrication d’electrode, electrode ainsi obtenue et supercondensateur la comprenant | |
EP1883937A2 (de) | Elektrode für energiespeichersysteme, herstellungsverfahren dafür und energiespeichersystem mit der elektrode | |
Biswal et al. | From dead leaves to high energy density supercapacitors | |
Xu et al. | Activated carbon fiber cloths as electrodes for high performance electric double layer capacitors | |
US6060424A (en) | High energy density carbons for use in double layer energy storage devices | |
FR2583916A1 (fr) | Cellule pour condensateur a double couche electrique et procede de fabrication d'une telle cellule | |
FR2901156A1 (fr) | Composite catalytique a base de charbon actif catalytique et nanotubes de carbone, procede de fabrication, electrode et supercondensateur comprenant le composite catalytique | |
JP4733707B2 (ja) | 電気二重層キャパシタ用炭素材料,電気二重層キャパシタ及び電気二重層キャパシタ用炭素材料の製造方法 | |
WO2017182743A1 (fr) | Carbone microporeux de densite elevee et son procede de preparation | |
WO2021241334A1 (ja) | 電気化学デバイス | |
JPH11145009A (ja) | 電気二重層キャパシター | |
CN115668420A (zh) | 电化学装置用电极及电化学装置 | |
KR100342069B1 (ko) | 왕겨활성탄을 원료로한 분극성 전극의 제조방법 및 그분극성 전극을 적용한 전기이중층 캐패시터 | |
JPH11121285A (ja) | 電気二重層キャパシター | |
US20180218848A1 (en) | Supercapacitors containing carbon black particles | |
EP3154902B1 (de) | Gelierte wässrige polymerzusammensetzung, daraus hergestellte, pyrolysierte kohlensäurehaltige zusammensetzung für eine superkondensatorelektrode und verfahren zur herstellung davon | |
FR2989821A1 (fr) | Electrode hybride nanotubes de carbone-carbonne mesoporeux pour supercondensateur | |
CN112938932B (zh) | 一种醛糖对高内相乳液模板法制备多孔碳的调控方法 | |
WO2016066860A1 (en) | A method for making a high-density carbon material for high-density carbon electrodes | |
KR100715872B1 (ko) | 수산화칼륨을 이용한 메조포어가 발달된 고축전수퍼캐패시터 전극의 제조 방법 | |
JP2024011759A (ja) | 非水系リチウム蓄電素子 | |
WO2021154332A1 (en) | High-performance supercapacitors from biomass-derived carbon | |
JP2024013601A (ja) | 正極前駆体及び正極スラリー | |
FR3090994A1 (fr) | Procede de fabrication d'une electrode frittee, electrode frittee et dispositif comprenant une telle electrode |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030627 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20050319 |