Graphene Sandwiched Mesostructured Li-Ion Battery Electrodes

Jinyun Liu; Qiye Zheng; Matthew D Goodman; Haoyue Zhu; Jinwoo Kim; Neil A Krueger; Hailong Ning; Xingjiu Huang; Jinhuai Liu; Mauricio Terrones; Paul V Braun

doi:10.1002/adma.201600829

Graphene Sandwiched Mesostructured Li-Ion Battery Electrodes

Adv Mater. 2016 Sep;28(35):7696-702. doi: 10.1002/adma.201600829. Epub 2016 Jul 6.

Authors

Jinyun Liu^{1

2}, Qiye Zheng², Matthew D Goodman², Haoyue Zhu³, Jinwoo Kim², Neil A Krueger², Hailong Ning⁴, Xingjiu Huang¹, Jinhuai Liu¹, Mauricio Terrones³, Paul V Braun⁵

Affiliations

¹ Research Center for Biomimetic Functional Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, Anhui, 230031, P. R. China.
² Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
³ Department of Chemistry, Pennsylvania State University, University Park, PA, 16802, USA.
⁴ Xerion Advanced Battery Corp, Champaign, IL, 61820, USA.
⁵ Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. pbraun@illinois.edu.

PMID: 27383465
DOI: 10.1002/adma.201600829

Abstract

A deterministic graphene-sandwiched Li-ion battery electrode consisting of an integrated 3D mesostructure of electrochemically active materials and graphene is presented. As demonstrations, electrodes with active nanomaterials that coat (V2 O5 @graphene@V2 O5 cathode) or are coated by (graphene@Si@graphene anode) graphene are fabricated. These electrodes exhibit high capacities and ultralong cycle lives (the cathode can be cycled over 2000 times with minimal capacity fade).

Keywords: Li-ion batteries; V2O5; anodes; cathodes; graphene.