Back to results
US 12,378,164 B2Granted
Rapid thermal processing methods and apparatus
AssigneeQuantumScape Battery, Inc.
InventorsTimothy Holme, Martin Winterkorn, Dylan Tozier, Murugan Ramaswamy
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for fabricating separators for solid-state lithium metal batteries employ rapid thermal processing. Aspects include high temperature sintering. Temperatures, durations of heat application, and proximity of heating elements to materials undergoing sintering combine to provide separators with desirable physical characteristics, including porosity, in a batch process.
Claims20
A process for sintering, the process comprising:
- providing a stack comprising a bilayer, furniture, and a frame;
- wherein the bilayer comprises a green body layer disposed on a metal layer;
- wherein the furniture comprises a first plate that contacts the metal layer of the bilayer and a second plate disposed above the green body layer of the bilayer;
- wherein the frame is interposed between the green body layer and the second plate;
- moving the stack through a furnace at about 1050° C. to about 1250° C. for about 30 seconds to about 3 minutes;
- thereby providing a sintered bilayer comprising a lithium-stuffed garnet layer on the metal layer;
- wherein the sintered bilayer has a thickness of between about 10 μm and about 50 μm.
4 more elements
Dependencies are inferred from the claim text.