Method for alkaliating anodes

摘要

The present invention relates to a method for lithiation of an intercalation-based anode or a non-reactive plating-capable foil or a reactive alloy capable anode, whereby utilization of said lithiated intercalation-based anode or a plating-capable foil or reactive alloy capable anode in a rechargeable battery or electrochemical cell results in an increased amount of lithium available for cycling, and an improved reversible capacity during charge and discharge.

主权项

1. A method for pre-lithiation of an anode comprising the steps of:
(a) providing an anode; (b) contacting said anode with a bath comprising dissolved carbon dioxide, lithium chloride, and gamma-butyrolactone in an amount sufficient to solubilize the lithium chloride, and wherein a dry gas blanket covers said bath; (c) providing an electrolytic field plate comprising an inert conductive material wherein said field plate establishes a field between the anode and the field plate; and (d) applying a reducing current to the anode and an oxidizing current to the field plate, wherein lithium ions from the bath lithiate into the anode.