Processing apparatuses and methods of using
AssigneeQuantumScape Battery, Inc.
InventorsDavid Berkstresser, Lucas Broganer, Timothy Holme, John Olenick, Murugan Ramaswamy, Tugrul Samir, Matthew Sheffield, Brad Stimson, Martin Winterkorn, Yi Zhou, Rishi Ramanathan, Jordan Friedland, Anand Parejiya
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Abstract
Set forth herein are processes for making sintered bilayers and sintered bilayers made by such processes. The process includes rapidly sintering thin bilayers that comprise a green body layer on a metal layer in order to produce bilayers that have a sintered oxide layer on a metal layer.
Claims20
A process for making a sintered bilayer, comprising:
- providing a green bilayer, comprising a green body layer and a metal layer, under tension of 1 N to 300 N per meter of web width;
- moving the green bilayer through a first heating zone to produce a debindered bilayer;
- moving the debindered bilayer through a second heating zone to prepare a sintered bilayer;
- wherein the debindered bilayer is in an arched configuration as the debindered bilayer moves through the second heating zone;
- wherein the debindered bilayer is in the second heating zone for about 1 second to about 3 minutes;
- wherein the tension is from 31.1 N to 187.5 N per meter of web width in the second heating zone;
- wherein the temperature in the second heating zone is 1050° C. to 1250° C.;
- and
- wherein the thickness of the sintered bilayer is less than 100 μm.
A sintered bilayer with an average roughness of less than 15 as measured by Keyence microscopy, wherein the sintered bilayer is made by a process comprising:
- providing a green bilayer, comprising a green body layer and a metal layer, under tension of 1 N to 300 N per meter of web width;
- moving the green bilayer through a first heating zone to produce a debindered bilayer;
- moving the debindered bilayer through a second heating zone to prepare a sintered bilayer;
- wherein the debindered bilayer is in an arched configuration as the debindered bilayer moves through the second heating zone;
- wherein the debindered bilayer is in the second heating zone for about 1 second to about 3 minutes;
- wherein the tension is from 31.1 N to 187.5 N per meter of web width in the second heating zone;
- wherein the temperature in the second heating zone is 1050° C. to 1250° C.;
- and
- wherein the thickness of the sintered bilayer is less than 100 μm.
Dependencies are inferred from the claim text.