US2009220826A1PendingUtilityA1
Processes for producing monolithic porous carbon disks from aromatic organic precursors
Est. expiryAug 16, 2024(expired)· nominal 20-yr term from priority
Inventors:Jing Wang
H01M 4/626C04B 2235/40H01G 9/042C04B 2235/404C04B 35/524H01M 4/96H01G 11/32H01M 8/0234H01M 4/926H01M 4/622H01M 4/625H01M 4/0471H01M 4/8882H01M 4/8875H01M 4/9083C04B 2235/3256H01M 4/621Y02E60/13H01M 4/583B82Y 30/00C04B 2235/80H01G 11/24Y02E60/10Y02E60/50Y10T428/21
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Claims
Abstract
Disclosed are processes for producing monolithic and metal doped monolithic porous carbon disks from prepolymer organic precursors in the powder form composed of either or both polyimide and polybenzimidazole. The powders are consolidated (compressed) into disks and then pyrolyzed to form the desired porous carbon disk. Porous carbon-carbon composite disks are also prepared by adding carbon to the prepolymer organic precursors.
Claims
exact text as granted — not AI-modified1 - 28 . (canceled)
29 . An electrochemical device comprising at least one cell, said cell comprising: two conductive electrodes; and a porous non-conductive separator disposed between the two electrodes, an electrolyte occupying pores of said electrodes and separator, wherein at least one of said electrodes comprises a monolithic porous carbon or a porous carbon composite;
wherein the composite comprises organic precursor powders; wherein the organic precursor powders comprise polyimide or polybenzimidazole; and wherein the organic precursor powders have been compressed and subjected to pyrolysis.
30 . The device of claim 29 wherein the cell includes capacitors, supercapacitors, electrochemical-electrolytic hybrid capacitors, hybrid battery/supercapacitor systems, lithium batteries, fuel cells, and other types of batteries.
31 . An electrochemical device comprising at least one cell, said cell comprising: two conductive electrodes; and a porous non-conductive separator disposed between the two electrodes, an electrolyte occupying pores of said electrodes and separator, wherein at least one of said electrodes comprises a monolithic porous carbon or a porous carbon composite;
wherein the composite comprises organic precursor powders and carbon; wherein the organic precursor powders comprise polyimide or polybenzimidazole; and wherein the organic precursor powders and the carbon have been compressed and subjected to pyrolysis.
32 . The device of claim 31 wherein the cell includes capacitors, supercapacitors, electrochemical-electrolytic hybrid capacitors, hybrid battery/supercapacitor systems, lithium batteries, fuel cells, and other types of batteries.Join the waitlist — get patent alerts
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