Granted Patent
B2
US 12,374,697 · App. 17/692,870 · Granted Jul 29, 2025
Inertially enhanced mass transport using porous flow-through electrodes with periodic lattice structures
Inventors:
Victor Alfred Beck (Livermore, CA); Sarah Baker (Dublin, CA); Swetha Chandrasekaran (Livermore, CA); Eric Duoss (Livermore, CA); Jean-Baptiste Forien (Livermore, CA); Anna Nikolaevna Ivanovskaya (Mountain View, CA); Marcus Worsley (Hayward, CA)
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Abstract
Disclosed are flow-through electrode devices and techniques for making flow-through electrodes. In one aspect, a flow through electrode apparatus comprises one or more fiber layers. Each fiber layer comprises a plurality of fibers oriented to be orthogonal to a flow direction of a fluid. The plurality of fibers are configured to cause an inertial flow of the fluid around the plurality of fibers at a first flow rate of the fluid.
Claims (22)
1. A flow through electrode apparatus comprising:
a plurality of fiber layers that are stacked such that fibers in the plurality of fiber layers together form a periodic lattice structure characterized by a mesoscopic length scale,
wherein the periodic lattice structure is configured to orient the fibers orthogonal to a flow direction of a fluid in order to enhance a formation of wake flows of the fluid behind each fiber at an inertial flow rate of the fluid, the wake flows being configured to induce an inertia-dominant mass transfer for the flow through electrode apparatus, and
wherein the fibers forming the periodic lattice structure are configured to generate an inertial flow of the fluid at flow rates greater than or equal to the inertial flow rate and a creeping flow at flow rates less than the inertial flow rate.
2. The apparatus of claim 1 , wherein the inertia-dominant mass transfer is greater compared to a mass transfer that is induced at a lower flow rate of the fluid.
3. The apparatus of claim 1 , wherein each of the fibers has a predetermined cross-sectional shape.
4. The apparatus of claim 3 , wherein the cross-sectional shape is circular, circular convex back with concave sides, circular concave back with convex sides, or circular concave back and sides.
5. The apparatus of claim 3 , wherein the cross-sectional shape is square, square convex back, square concave back, square concave back and sides, or square concave back with convex sides.
6. The apparatus of claim 3 , wherein the cross-sectional shape has a plurality of sharp edges.
7. The apparatus of claim 1 , wherein the fibers are oriented to produce a face centered cubic (FCC) structure.
8. The apparatus of claim 1 , wherein the inertial flow rate causes a flow that is characterized by a Reynolds number greater than 1.
9. The apparatus of claim 1 , wherein the wake flows comprise one or more of:
an eddy flow;
a recirculating flow;
a secondary flow; or
a recirculation bubble.
10. The apparatus of claim 1 , wherein each of the plurality of fiber layers are configured to produce an unperturbed flow farther in the flow direction.
11. The apparatus of claim 1 , wherein the plurality of fiber layers is fabricated using one or more of:
a 3D printing process;
a casting process;
a molding process; or
a photolithography process.
Assignments (2)
CONFIRMATORY LICENSE (SEE DOCUMENT FOR DETAILS)
Recorded Jul 19, 2022
From: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 060796/0426 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Mar 11, 2022
From: BECK, VICTOR ALFRED; BAKER, SARAH; CHANDRASEKARAN, SWETHA; DUOSS, ERIC; FORIEN, JEAN-BAPTISTE; IVANOVSKAYA, ANNA NIKOLAEVNA; WORSLEY, MARCUS
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 059244/0667 →
Continuity (2)
Provisional Application
63160197
· Mar 12, 2021
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