High capacity cathode
AssigneeSeeo, Inc.
InventorsMohit Singh, Hany Basam Eitouni
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Abstract
A novel electrode for a battery is provided. The electrode may contain active material nanoparticles embedded in a solid polymer electrolyte. The electrolyte can also act as a binder for the nanoparticles. A plurality of voids is dispersed throughout the solid polymer electrolyte. The electrode may also contain electronically conductive carbon particles. Upon charging or discharging of the cell, the nanoparticles expand as they take up active material ions. The solid polymer electrolyte can deform reversibly in response to the expansion of the nanoparticles and transfer the volume expansion to the voids.
Claims40
A cathode for an electrochemical cell comprising:
- a solid polymer electrolyte comprising a plurality of voids;
- and
- nanoparticles comprising active material and distributed within and throughout the solid polymer electrolyte,
- wherein the plurality of voids is compressible such that upon incorporation of the active material into the nanoparticles, the solid polymer electrolyte expands into the plurality of voids.
Dependencies are inferred from the claim text.