US 12,240,143 B2
Rapid ceramic processing techniques and equipment
Timothy Holme, San Jose, CA (US); Martin M. Winterkorn, San Jose, CA (US); John Olenick, San Jose, CA (US); David Berkstresser, San Jose, CA (US); Matthew Sheffield, San Jos, CA (US); Yamini Mohan, San Jose, CA (US); Yi Zhou, San Jose, CA (US); and Lucas Broganer, San Jose, CA (US)
Assigned to QuantumScape Battery, Inc., San Jose, CA (US)
Filed by QUANTUMSCAPE BATTERY, INC., San Jose, CA (US)
Filed on Sep. 1, 2023, as Appl. No. 18/460,360.
Application 18/460,360 is a continuation of application No. PCT/US2022/019641, filed on Mar. 9, 2022.
Claims priority of provisional application 63/233,684, filed on Aug. 16, 2021.
Claims priority of provisional application 63/158,861, filed on Mar. 9, 2021.
Prior Publication US 2024/0116826 A1, Apr. 11, 2024
Int. Cl. C04B 35/486 (2006.01); B28B 11/24 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/636 (2006.01); C04B 35/638 (2006.01); C04B 35/64 (2006.01); C04B 37/02 (2006.01); F27B 9/02 (2006.01); F27B 9/04 (2006.01); F27B 9/28 (2006.01)
CPC B28B 11/243 (2013.01) [C04B 35/486 (2013.01); C04B 35/6261 (2013.01); C04B 35/6264 (2013.01); C04B 35/62655 (2013.01); C04B 35/6342 (2013.01); C04B 35/63424 (2013.01); C04B 35/63488 (2013.01); C04B 35/6365 (2013.01); C04B 35/638 (2013.01); C04B 35/64 (2013.01); C04B 37/021 (2013.01); F27B 9/028 (2013.01); F27B 9/045 (2013.01); F27B 9/28 (2013.01); C04B 2235/3248 (2013.01); C04B 2235/60 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/6584 (2013.01); C04B 2235/764 (2013.01); C04B 2237/348 (2013.01); C04B 2237/405 (2013.01); C04B 2237/706 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for sintering a bilayer, the process comprising:
unwinding a bilayer roll to provide a bilayer;
heating the bilayer comprising a green body layer disposed on a metal layer in a furnace at about 1100° C. to about 1300° C. for about 5 seconds to about 3 minutes at a heating rate of higher than 300° C./min;
thereby providing a sintered bilayer comprising a lithium-stuffed garnet layer on the metal layer;
wherein the bilayer has a thickness, after sintering, of between about 10 μm and about 50 μm;
wherein the bilayer moves through the furnace at a rate between about 2 centimeters/minute and 100 centimeters/min; and
wherein the furnace comprises an atmospheric controller that maintains an atmosphere in the furnace that comprises argon (Ar) gas; nitrogen (N2) gas; hydrogen gas; or a mixture thereof.