公开(公告)号：US20200044236A1

公开(公告)日：2020-02-06

申请号：US16599139

申请日：2019-10-11

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Juncao BIAN ,  Shengbo LU ,  Chenmin LIU ,  Wai Yin WONG ,  Hong ZHAO

IPC: H01M4/133 ,  H01M10/0525 ,  H01M4/66

Abstract: A fast charge lithium ion battery capable of being charged or discharged with 80% capacity retention at C rate of at least 2C is provided in the present invention, which includes a fast charge graphite-based anode; a cathode; and a separator, wherein the anode includes an anode current collector and a fast charge graphite layer deposited on at least one surface of the anode current collector, the fast charge graphite having a lattice constant equals to or larger than 0.3374 nm, a D-band to G-band integrated area ratio (ID/IG) of 0.03 to 0.3, and a surface morphology of a plate-like crystal structure under a scanned electron microscope; the cathode includes a cathode current collector and one or more active materials deposited on at least one surface of the cathode current collector.