公开(公告)号：US20240021820A1

公开(公告)日：2024-01-18

申请号：US18254569

申请日：2021-11-25

Applicant: THE UNIVERSITY OF QUEENSLAND

Inventor： Chengzhong YU ,  Xiaodan HUANG ,  Yueqi KONG

IPC: H01M4/583 ,  H01M4/62 ,  H01M4/04 ,  H01M10/054

CPC classification number: H01M4/583 ,  H01M4/622 ,  H01M4/0471 ,  H01M10/054 ,  H01M4/0404 ,  H01M2004/021

Abstract: The invention relates to a method of processing graphene comprising the steps of: combining few-layer graphene with a poly(alkylene oxide); drying to form a graphene/poly(alkylene oxide) composite; and calcining the graphene/poly(alkylene oxide) composite thus formed in an inert atmosphere. The invention also relates to processed graphene comprising a few-layer feature, wherein the graphene further comprises one or more features selected from: in-plane nanopores with dimensions of from about 1.5 nm to about 3.5 nm; a greater than 50% expanded interlayer lattice; an expansion interlayer distance of greater than 3.40 Å; and an atomic O/C content of less than 4%. The invention further relates to cathodes and batteries comprising processed graphene, and the use of processed graphene in capacitive deionization or rechargeable battery applications.