Composite materials for use in cathode layers and methods of making the same
AssigneeSolid Power Operating, Inc.
InventorsHong WANG, Brian Clark, Zichao Yang, Anthony Donakowski, Pu Zhang
Life of this patent
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Abstract
Composite shell compositions for use in a cathode in a solid electrochemical cell are described. The composite shell compositions include sulfur, carbon, and a lubricant material. The composite shells improve the mechanical durability and the conductivity of the cathode.
Claims29
A composite shell comprising sulfur, carbon, and a lubricant, the composite shell having an average diameter from about 1 micron to about 50 microns and a substantially spheroidal shape.
A composite shell comprising sulfur and carbon, the composite shell having an average diameter from about 1 micron to about 50 microns and a substantially spheroidal shape.
A cathode composition for use in a solid electrochemical cell, the cathode comprising:
- a cathode active material;
- and
- a composite shell comprising sulfur, carbon, and a lubricant having an average diameter from about 1 micron to about 50 microns, the composite shell having a substantially spheroidal shape.
A process for making a composite shell composition, the process comprising:
- dry milling a mixture comprising sulfur, carbon, and a lubricant;
- and
- heat treating the mixture at a temperature from about 150° C. to about 170° C. to form the composite shell composition.
Dependencies are inferred from the claim text.