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US 10,763,538 B2Granted
Methods of forming electrochemical cells
AssigneeEnevate Corporation
InventorsBenjamin Yong Park, Ian Russell Browne, Heidi Leighette Anderson
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Abstract
Methods of forming electrochemical cells are described. In some embodiments, the method can include providing an electrochemical cell having an electrode with at least about 20% to about 99% by weight of silicon. The method can include providing a formation charge current at greater than about 1 C to the electrochemical cell. Alternatively or additionally, the method can include providing a formation charge current at a substantially constant charge voltage to the electrochemical cell.
Claims21
A method of forming an electrochemical cell, the method comprising:
- providing an electrochemical cell comprising:
- a first electrode and a second electrode, wherein at least the first electrode comprises at least about 20% to about 99% by weight of silicon;
- a separator between the first electrode and the second electrode;
- and
- an electrolyte in contact with the first electrode, the second electrode, and the separator;
- and
- providing a formation process comprising a charge step, a rest step, and a discharge step, the charge step comprising providing a formation charge current at greater than about 1 C to the electrochemical cell, wherein the formation process is completed in approximately 10 minutes to 120 minutes.
4 more elements
Dependencies are inferred from the claim text.