Minjie Li

US Patent:

20150000118, Jan 1, 2015

Filed:

Jun 26, 2013

Appl. No.:

13/927125

Inventors:

XIN ZHAO - New York NY, US
Minjie Li - New York NY, US

International Classification:

H01M 10/04

US Classification:

296233, 296231, 296235

Abstract:

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.