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US 11,380,879 B2Granted
Method for forming an SEI layer on an anode
AssigneeNanoscale Components, Inc.
InventorsJose A. Vega, Asela Maha Acharige, Ronald A. Wohl
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Abstract
The present invention relates to a method for forming an SEI layer on an anode by using a non-electrochemical process for alkaliating anodes, resulting in reductions of the manufacturing capital requirements, time investments and energy consumed during industrial battery production.
Claims9
A method for forming an SEI layer on an anode for a rechargeable metal-ion battery, comprising the steps of:
- a. Pre-alkaliating an anode to a dosage greater than or equal to the irreversible loss of the anode;
- b. Assembling the pre-alkaliated anode, a cathode, a separator and an electrolyte into a sealed cell;
- c. Forming an SEI layer by soaking the cell without application of external voltage or current;
- and
- d. Optionally degassing the cell.
2 more elements
A method for the formation of rechargeable metal-ion batteries, comprising the steps of:
- a. Pre-alkaliating an anode to a dosage greater than or equal to the irreversible loss of the anode;
- b. Assembling the pre-alkaliated anode, a cathode, a separator and an electrolyte into a sealed cell;
- c. Chemically forming an SEI layer by soaking the cell without application of external voltage or current;
- d. Optionally degassing the cell;
- and
- e. Charging the anode through application of external voltage and/or current.
3 more elements
Dependencies are inferred from the claim text.