Open AccessSingle-step chemical synthesis of CoFe2O4 nanowire arrays/Cu foam integrated electrode as binder-free anode with enhanced lithium storage properties
Author(s) -
Xinqi Li,
Huihui Liang,
Ping Li,
Xinran Liu
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ac04ed
Subject(s) - anode , materials science , electrode , nanowire , electrochemistry , lithium ion battery , chemical engineering , foil method , lithium (medication) , current collector , porosity , nanotechnology , battery (electricity) , composite material , electrolyte , chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
The properties of lithium ion battery largely depend on the structure of active materials. In the present work, CoFe 2 O 4 nanowire arrays /Cu foam three-dimensional integrated electrode (denoted as CFO/Cu-foam NWAs) was firstly designed and synthesized via a simple hydrothermal method follow annealing as a binder-free anode for lithium ion battery. The CoFe 2 O 4 nanowires with diameter of 50–100 nm are uniformly anchored on the porous conductive substrate. Lithium ion battery based on the CFO/Cu-foam NWAs integrated electrode exhibits a high initial capacity of 882.7 mAh · g −1 and excellent cyclic stability of 832.1 mAh · g −1 after 100 cycles at 1.0 A · g −1 which is much better than traditional coated electrode of CoFe 2 O 4 nanowire (defined as CFO NWAs) and CoFe 2 O 4 nanowire/Cu foil integrated electrode (named CFO/Cu-foil NWAs). The improved electrochemical performance might be attributed to superior conductivity and porous skeleton structure which not only reduce contact resistance and polarization, but also relieve volume alteration during the lithiation/delithiation process. These advantages make the CoFe 2 O 4 /Cu foam integrated electrode a promising anode for Li-ion batteries.