Solid state battery with electrolyte made with wet on wet slurry layer materials
AssigneeSolid Power Operating, Inc.
InventorsAlexander DELLUVA, Brian E. FRANCISCO, David A. TELEP
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Abstract
Described herein are processes for preparing electrochemical cells. The processes are defined by coating a second electrochemical cell layer on top of a first electrochemical cell layer while both electrochemical cell layers are wet. Electrochemical cells produced by this process are also described.
Claims20
A process for making electrochemical cells comprising coating a first wet slurry on a surface forming a first coated layer, coating a second wet slurry on top of the first coated layer forming a wet multilayer stack, resulting in an initial wet-on-wet contact between the first coated layer and the second coated layer forming an interface to define a portion of an electrochemical cell.
A process comprising:
- coating a binder slurry onto a carrier foil, the binder slurry including a binder;
- coating an electrode slurry on top of the coated binder slurry while the binder slurry is still wet, such that the binder slurry and coated electrode slurry are both wet and in contact;
- coating a separator slurry on top of the coated electrode slurry while the electrode slurry is still wet;
- drying the binder slurry, the electrode slurry, and the separator slurry to form a dried composition comprised of a first electrode layer and a first separator layer;
- and
- densifying the dried composition.
An electrochemical cell produced by:
- coating an electrode slurry onto a surface;
- coating a separator slurry on top of the coated electrode slurry while the electrode slurry is still wet, such that the separator slurry and coated electrode slurry are both wet and in contact;
- drying the electrode slurry and the separator slurry to form a dried composition comprised of a first electrode layer and a first separator layer;
- densifying the dried composition;
- and
- laminating the dried composite with a dried coated layer to form a completed electrochemical cell.
Dependencies are inferred from the claim text.