Method and system to create variable densities within battery electrodes
AssigneeGM Global Technology Operations LLC
InventorsNicholas P. Irish, Ryan C. Sekol, Dmitriy Bruder
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Abstract
A method to create variable densities within battery electrodes for motor vehicles includes one more of the following: providing a current collector; applying a first layer of active electrode material on a first surface of the current collector; and calendaring the first layer of active electrode material with a first textured roller to create a textured geometry on the surface on the first layer of active electrode material, a density gradient of the first layer of active electrode material being proportional to the textured geometry.
Claims20
A method to create variable densities within battery electrodes for motor vehicles, the method comprising:
- providing a current collector;
- applying a first layer of active electrode material on a first surface of the current collector;
- and
- calendaring the first layer of active electrode material with a first textured roller to create a textured geometry on the surface on the first layer of active electrode material, a density gradient of the first layer of active electrode material being proportional to the textured geometry.
A system to create variable densities within battery electrodes for motor vehicles, the system comprising:
- a current collector;
- a first layer of active electrode material applied on a first surface of the current collector;
- and
- a first textured roller to calendar the first layer of active electrode material to create a textured geometry on the surface on the first layer of active electrode material, a density gradient of the first layer of active electrode material being proportional to the textured geometry.
A system to create variable densities within battery electrodes for motor vehicles, the system comprising:
- a current collector;
- one or more layers of active electrode material applied on a first surface of the current collector;
- one or more layer of active electrode material applied on a second surface of the current collector;
- a first textured roller to calendar each of the one or more layers of active electrode material applied on the first surface of the current collector to create a density gradient in the one or more layers of active electrode material on the first surface of the current collector, the density gradient being proportional to the textured geometry;
- and
- a second textured roller to calendar each of the one or more layers of active electrode material applied on the second surface of the current collector to create a density gradient in the one or more layers of active electrode material on the second surface of the current collector, the density gradient being proportional to the textured geometry.
Dependencies are inferred from the claim text.