Electrochemical Study of Graphene Coated Nickel Foam as an Anode for Lithium-Ion Battery [Article]
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Date
2018-05-30
Authors
Mukanova, Aliya
Nurpeissova, Arailym
Kim, Sung-Soo
Myronov, Maksym
Bakenov, Zhumabay
Zharbossyn, Assem
Journal Title
Journal ISSN
Volume Title
Publisher
Eurasian Chemico-Technological Journa
Abstract
This study reports the synthesis of a few-layered graphene (GF) thin film on Ni
foam by chemical vapor deposition (CVD) technique and investigation of its
electrochemical performance as a negative electrode for lithium-ion batteries
(LIBs). A standard deposition procedure with a methane precursor was employed
to prepare the GF films. The SEM studies revealed the formation of a dark uniform
film on the surface of Ni foam’s wires upon the CVD deposition. The film consisted
of numerous GF sheets replicating the shape of the Ni grain boundaries over the
Ni wire surface. The Raman spectroscopy of the prepared films on the Ni foam
confirmed that the samples are a few-layered GF with high quality and purity. In
order to evaluate the potential of the use of the prepared materials as an anode
in LIBs, their electrochemical performance was studied in coin-type lithium halfcells
using cyclic voltammetry (CV) and galvanostatic cycling. The results of CV
showed that both graphene and native oxide layer (NiO) on nickel foam exhibit
electrochemical activity with respect to lithium ions. Galvanostatic cycling revealed
that both GF and NiO contribute to the overall capacity, which increases upon
cycling with a stable Coulombic efficiency of around 99%. The designed 3D GF
coated NiO/Ni anode demonstrated a gradual increase of its areal charge capacity
from 65 μAh cm-2 at the initial cycle to 250 μAh cm-2 at the final 250th cycle.
Description
http://ect-journal.kz/index.php/ectj/article/view/694
Keywords
graphene, nickel, 3D current collector, lithium-ion batteries, CVD
Citation
Mukanova, A., Zharbossyn, A., Nurpeissova, A., Kim, S.-S., Myronov, M., & Bakenov, Z. (2018). Electrochemical Study of Graphene Coated Nickel Foam as an Anode for Lithium-Ion Battery. Eurasian Chemico-Technological Journal, 20(2), 91. https://doi.org/10.18321/ectj694