US2023312348A1PendingUtilityA1
Process for the preparation of a porous carbon material using an improved carbon source
Est. expiryOct 27, 2037(~11.3 yrs left)· nominal 20-yr term from priority
C01B 32/05H01M 10/0525H01M 10/06C01P 2004/61C01P 2006/10C01P 2006/12C01P 2006/14C01P 2006/16C01P 2006/80C04B 38/0022C04B 35/524C04B 2111/00844C04B 2235/48C01B 32/00Y02E60/10C04B 32/00
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Claims
Abstract
A process for preparing a porous carbon material. The process comprises the process steps: providing a carbon source; providing an amphiphilic species; contacting the carbon source and the amphiphilic species to obtain a precursor; and heating the precursor to obtain the porous carbon material; wherein the carbon source comprises a carbon source compound, wherein the carbon source compound comprises an aromatic ring having one or more attached OH groups and an ester link.
Claims
exact text as granted — not AI-modifiedWhat is claimed:
1 . A process for preparing a porous carbon material comprising the process steps:
providing a carbon source; providing an amphiphilic species; contacting the carbon source and the amphiphilic species to obtain a precursor; and heating the precursor to obtain the porous carbon material; wherein the carbon source comprises a carbon source compound, wherein the carbon source compound comprises the following:
an aromatic ring having 1 or more attached OH groups;
an ester link.
2 . The process according to claim 1 , wherein the aromatic ring i, is a 6 member ring.
3 . The process according to claim 1 , wherein the aromatic ring i, is a carbon ring.
4 . A porous carbon material having at least one of the following features:
a total pore volume in a range from 0.4 to 2.8 cm 3 /g for pores having a diameter in a range from 10 nm to 10,000 nm; a BET TOTAL in a range from 10 to 1000 m 2 /g; a conductivity greater than 2 S/cm; a pore diameter distribution with a mode in a range from 50 to 280 nm; a skeletal density in a range from 1.8 to 2.3 g/cm3; and A d 50 for primary particle diameter in a range from 300 nm to 100 µm.
5 . The porous carbon material according to claim 4 further comprising a feature selected from the group consisting of:
BET MICRO in a range from 0 to 650 m 2 /g;
a mean pore size above 40 nm;
a modal pore size above 40 nm;
a ratio of modal pore size to mean pore size in a range from 0.2 to 1.1;
a particle diameter d 90 below 7 µm;
less than 25 ppm impurities other than carbon;
an iron content less than 25 ppm; or
a combination of two or more of the above features.
6 . A device comprising the porous carbon material according to claim 4 .
7 . A device comprising the porous carbon material according to claim 5 .
8 . A process of using the porous carbon material according to claim 4 for improving the properties of an electrical device, wherein the electrical device is selected from the group consisting of an electrochemical cell, a capacitor, an electrode, and a fuel cell.
9 . The process according to claim 8 wherein an ion transport of the electrical device is improved.
10 . The process according to claim 8 wherein the electrical device is a lithium ion battery having electrodes, and a power density of the lithium ion battery is improved by enhancing the ion diffusivity in the electrodes.
11 . The process according to claim 8 wherein the electrical device is a lithium ion battery having an electrode with a thickness, and an energy density of the lithium ion battery is improved by increasing the electrode thickness.
12 . The process according to claim 8 wherein the electrical device is a lithium ion battery having electrodes, and the process reduces a drying time of the electrodes.
13 . The process according to claim 8 wherein the electrical device is a lithium ion battery having electrodes filled with electrolyte, and the process reduces an electrolyte filling time of the electrodes.
14 . The process according to claim 8 wherein the electrical device is a lithium ion battery having electrodes filled with electrolyte, and the process improves a low-temperature conductivity of the electrolyte.
15 . The process according to claim 8 wherein the electrical device is a fuel cell, and the process improves a cycle life and/or a water transport in the fuel cell.
16 . The process according to claim 8 wherein the electrical device is an electrical capacitor having an electrode with a thickness, and an energy density of the electrical capacitor is improved by increasing the electrode thickness.
17 . The process according to claim 8 wherein the electrical device is an electrical capacitor having electrodes, and a power density of the electrical capacitor is improved by enhancing the ion diffusivity in the electrodes.
18 . The process according to claim 8 wherein the electrical device is a lead acid battery, and the process improves a cycle life and/or a deep-discharge capacity in the lead acid battery.
19 . The process according to claim 8 wherein the electrical device is a lead acid battery, and the process improves a dynamic charge acceptance in the lead acid battery.
20 . A process of using the porous carbon material according to claim 5 for improving the properties of an electrical device, wherein the electrical device is selected from the group consisting of an electrochemical cell, a capacitor, an electrode, and a fuel cell.Cited by (0)
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