Compositions and methods for multilayer electrode films
AssigneeTesla, Inc.
InventorsJoon Ho Shin, Hieu Minh Duong
Life of this patent
Estimating the term…
Abstract
Provided herein are energy storage device electrode films comprising multiple active layers, and methods of forming such multiple active layer energy storage device electrode films. Each active layer may be a self-supporting active layer comprising a binder and an active material. The binder and/or active material may be the same or different as any other active layer. The active layers may be stacked to form an electrode film, and the electrode film may be laminated with a current collector to form an electrode.
Claims25
A method of fabricating a multilayer electrode film comprising:
- providing a first active layer comprising a first active material and a first binder, wherein the first active layer is a free-standing film;
- providing a second active layer comprising a second active material and a second binder, wherein the second active layer is a free-standing film;
- and
- stacking the first active layer to the second active layer to form a multilayer electrode film, wherein the multilayer electrode film is a free-standing film;
- wherein the method is a dry fabrication process and the first and second active layers are substantially free of solvent residue.
A method of fabricating a multilayer electrode comprising:
- providing a first active layer comprising a first active material and a first binder, wherein the first active layer is a free-standing film;
- providing a second active layer comprising a second active material and a second binder, wherein the first active layer is a free-standing film;
- stacking the first active layer to the second active layer;
- and
- laminating the first active layer to a current collector;
- wherein the method is a dry fabrication process and the first and second active layers are substantially free of solvent residue.
The method of 17, wherein laminating the first active layer to the current collector precedes stacking the first active layer to the second active layer.
The method of 17, wherein stacking the first active layer to the second active layer precedes laminating the first active layer to the current collector.
Dependencies are inferred from the claim text.