METHOD FOR MANUFACTURING GRAPHENE-INCORPORATED RECHARGEABLE LI-ION BATTERY

摘要

A method for manufacturing a graphene-incorporated rechargeable Li-ion battery discloses a graphene-incorporated rechargeable Li-ion battery with enhanced energy and power delivery abilities. The method comprises the steps (a) fabricating a high-performance anode film based on graphene or graphene hybrid; (b) introducing a desired amount of lithium into the anode material to produce a prelithiated graphene-based anode; (c) constructing a full cell utilizing a cathode film and the prelithiated anode film. The graphene-based anodes incorporating exfoliated graphene layers overcome the large irreversible capacity and initial lithium ion consumption upon pre-lithiation, and demonstrate remarkably enhanced specific capacity and rate capability over conventional anodes.

主权项

1. A method for manufacturing a graphene-incorporated rechargeable Li-ion battery comprising the steps of
(a) fabricating a high-performance anode film based on graphene or graphene hybrid; (b) introducing a predetermined amount of lithium into the anode film to produce a prelithiated graphene-based anode film; (c) constructing a full cell utilizing a cathode film and the prelithiated graphene-based anode film; the cathode and anode is immersed in a liquid electrolyte and a separator is placed in the electrolyte for separating the anode and the cathode, alternatively, the electrolyte is one of a gel or solid films; and wherein the graphene-based anodes incorporating exfoliated graphene layers overcome the large irreversible capacity and initial lithium ion consumption upon prelithiation, and demonstrate remarkably enhanced specific capacity and rate capability over conventional anodes.