High energy density Li-ion battery electrode materials and cells
AssigneeThe Johns Hopkins University
InventorsJeremy D. Walker, Jeffrey P. Maranchi, Edward D. Russell, Jennifer L. Sample, Marcia W. Patchan, Lance M. Baird, Rengaswamy Srinivasan
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Abstract
A method of preparing a high capacity nanocomposite cathode of FeF3 in carbon pores may include preparing a nanoporous carbon precursor, employing electrochemistry or solution chemistry deposition to deposit Fe particles in the carbon pores, reacting nano Fe with liquid hydrofluoric acid to form nano FeF3 in carbon, and milling to achieve a desired particle size.
Claims18
A method of providing electrode materials for a battery cell, the method comprising:
- preparing a nanocomposite cathode of FeF3 by depositing Fe particles in carbon pores of a nanoporous carbon precursor and reacting the Fe particles with liquid hydrofluoric acid to form nanometer-sized FeF3 in the carbon pores;
- preparing a nanocomposite anode of Cu and Si by:
- creating a Cu:Si interface via electrodeposition or physically forming Cu around Si by milling;
- and
- annealing to enhance atomic intermixing;
- and
- combining the nanocomposite cathode with the nanocomposite anode for a Lithium-ion battery cell.
A method of preparing a nanocomposite cathode of FeF3 in carbon pores, the method comprising:
- preparing a nanoporous carbon precursor;
- employing electrochemistry or solution chemistry deposition to deposit Fe particles in the carbon pores;
- reacting the Fe particles with liquid hydrofluoric acid to form nanometer-sized FeF3 in the carbon pores;
- and
- milling to achieve a desired particle size.
Dependencies are inferred from the claim text.