Open AccessFacile preparation of hierarchical CuO nanostructures as a integrate binder-free anode for high-performance lithium-ion batteries
Author(s) -
Jianbin Wang,
Shaoqing He,
Peng Zhang,
Zejun Kang,
Daijiang Zou,
Lina Xia
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1802/2/022040
Subject(s) - anode , materials science , electrospinning , electrochemistry , nanostructure , microstructure , nanofiber , transmission electron microscopy , graphene , nanotechnology , porosity , electrode , carbon nanofiber , chemical engineering , lithium (medication) , current density , lithium ion battery , composite material , battery (electricity) , carbon nanotube , chemistry , power (physics) , medicine , physics , quantum mechanics , endocrinology , engineering , polymer
Novel CuO hybrid nanostructures composed of one-dimensional (ID) porous carbon nanofibers and two-dimensional (2D) graphene nanosheets have been fabricated with the help of electrospinning technique, which is denoted as CuO@PCNF/GN. The microstructure and morphology of the CuO@PCNF/GN were investigated by X-ray diffraction and transmission electron microscopy. The electrochemical performances of the as-prepared materials as a novel bind-free anode for lithium ion battery (LIB) were investigated. The CuO@PCNF/GN electrode exhibited high discharge capacity of 665 mAh g −1 after 60 cycles at the current density of 100 mA g −1 . Even at 800 mA g −1 , the discharge capacity of the anode could still maintained at 443 mAh g −1 . The excellent electrochemical properties of CuO are greatly related to the unique 3D interconnected structure of continuous PCNF and GN, which enables efficient electron/ion transport and migrate the volume change of active CuO materials.