TY - JOUR
T1 - Enhanced and stabilized charge transport boosting by Fe-doping effect of V2O5 nanorod for rechargeable Zn-ion battery
AU - Yoo, Geun
AU - Koo, Bon Ryul
AU - An, Ha Rim
AU - Huang, Chun
AU - An, Geon Hyoung
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) ( NRF-2020R1C1C1010611 ) and the Engineering and Physical Sciences Research Council (EPSRC) United Kingdom Research Innovation (UKRI) Fellowship “Novel Manufacturing Approaches to Next Generation Batteries” ( EP/S001239/1 ).
Publisher Copyright:
© 2021 The Korean Society of Industrial and Engineering Chemistry
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/7/25
Y1 - 2021/7/25
N2 - As a result of prices of fossil fuels and the increased energy demand, reasonable utilization of renewable energy sources has become a global topic, rechargeable aqueous zinc-ion batteries (ZIBs) are considered as the large-scale energy storage because there is an abundant zinc source, and ZIBs provide reliable safety, eco-friendliness, and high specific capacity. Nevertheless, the limited electroactive sites and low electrical conductivity of vanadium oxide (V2O5)-based cathode for ZIBs inevitably destabilizes the energy storing reactions, impeding the diffusion of zinc ion and electron movement. Here, to lower the insertion energetics and diffusion barriers of zinc ion, we reported iron (Fe)-doped V2O5 with the nanorod architecture by utilization of electrospun polyacrylonitrile fiber templates; these exhibited a high energy density of 540 W h kg−1 at a power density of 600 W kg−1, and a good capacity retention of 85% after up to 160 cycles. The Fe-doping effects in V2O5 matrix with the nanorod architecture provides abundant contact with electrolyte, an increased electrical conductivity, and shortened ionic diffusion distance during electrochemical processes, facilitating overall energy-storing performance. This work provides a necessary strategy for designing next-generation high-performance energy storage devices.
AB - As a result of prices of fossil fuels and the increased energy demand, reasonable utilization of renewable energy sources has become a global topic, rechargeable aqueous zinc-ion batteries (ZIBs) are considered as the large-scale energy storage because there is an abundant zinc source, and ZIBs provide reliable safety, eco-friendliness, and high specific capacity. Nevertheless, the limited electroactive sites and low electrical conductivity of vanadium oxide (V2O5)-based cathode for ZIBs inevitably destabilizes the energy storing reactions, impeding the diffusion of zinc ion and electron movement. Here, to lower the insertion energetics and diffusion barriers of zinc ion, we reported iron (Fe)-doped V2O5 with the nanorod architecture by utilization of electrospun polyacrylonitrile fiber templates; these exhibited a high energy density of 540 W h kg−1 at a power density of 600 W kg−1, and a good capacity retention of 85% after up to 160 cycles. The Fe-doping effects in V2O5 matrix with the nanorod architecture provides abundant contact with electrolyte, an increased electrical conductivity, and shortened ionic diffusion distance during electrochemical processes, facilitating overall energy-storing performance. This work provides a necessary strategy for designing next-generation high-performance energy storage devices.
KW - Cathode
KW - Electrochemical performance
KW - Energy storage
KW - Vanadium oxide
KW - Zinc-ion batteries
UR - http://www.scopus.com/inward/record.url?scp=85105107094&partnerID=8YFLogxK
U2 - 10.1016/j.jiec.2021.04.041
DO - 10.1016/j.jiec.2021.04.041
M3 - Article
AN - SCOPUS:85105107094
SN - 1226-086X
VL - 99
SP - 344
EP - 351
JO - JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
JF - JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
ER -