US Patent 11908992 Methods of forming electrochemical cells

Methods and systems for forming electrochemical cells are provided. An electrochemical cell may be provided, with the electrochemical cell including a first electrode, a second electrode, a separator between the first electrode and the second electrode, and an electrolyte. At least the first electrode is a silicon-dominant electrode. A formation process may be used for the electrochemical cell, with the processing including at least a charge step that includes providing a formation charge current at greater than about 1C to the electrochemical cell, where providing the formation charge current includes charging to a partial formation.