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US 2024/0347733 A1Published application
Methods for preparing electrodes
AssigneeSolid Power Operating, Inc.
InventorsJason E. ROBERTS, James BERGMAN, Morgan MORRONI, Alexander DELLUVA, Collin R. BECKER
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Abstract
The present invention provides solid-state primary and secondary electrochemical cells, cathode slurries in an electrochemical cell, and electrode materials, and the corresponding methods of making and using the same.
Claims22
A method for preparing an electrode slurry for use in an electrochemical cell comprising:
- combining a solid electrolyte with a first binder dissolved in a first organic solvent to form a first slurry;
- combining the first slurry with an electrode active material and a conductive additive to form a second slurry;
- and
- adding a second binder dissolved in a second organic solvent to the second slurry, wherein the addition of the second binder yields precipitation of the first binder.
1 more element
A method for preparing an electrode slurry for use in an electrochemical cell comprising:
- adding a second binder to a slurry comprising an electrode active material, a conductive additive, a solid electrolyte, a first binder, and a combination of a first organic solvent and a second organic solvent,
- wherein the addition of the second binder causes the precipitation of the first binder.
A method for preparing an electrode slurry for use in an electrochemical cell comprising:
- combining a solid electrolyte with a first binder dissolved in a first organic solvent the combination to form a first slurry;
- combining the first slurry with an electrode active material and a conductive additive to form a second slurry;
- adding a second binder dissolved in a second organic solvent to the second slurry;
- casting the second slurry onto a current collector;
- coating a third slurry on top of the second slurry, thereby forming an interface between the second slurry and the third slurry, the third slurry being devoid of the second binder;
- and
- drying the second slurry and the third slurry;
- wherein the addition of the second binder causes the first binder to precipitate in the second slurry, and
- wherein the dried third slurry comprises the second binder.
6 more elements
An electrochemical cell comprising:
- a current collector;
- an electrode layer having a high porosity region;
- and
- a separator layer in physical contact with the electrode layer, the separator layer having a high porosity region;
- wherein the electrode layer and the separator layer are in physical contact at an interface, and the interface comprises a low porosity region.
2 more elements
Dependencies are inferred from the claim text.