TY - JOUR
T1 - Chitosan-Assisted Fabrication of a Network C@V2O5Cathode for High-Performance Zn-Ion Batteries
AU - Liu, Chunxue
AU - Li, Rui
AU - Liu, Weijia
AU - Shen, Guozhen
AU - Chen, Di
N1 - Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/8/11
Y1 - 2021/8/11
N2 - Vanadium oxide-based aqueous zinc-ion batteries exhibit promising potential due to their low cost and safety profiles. However, fabricating cathodes with outstanding electrochemical performance for Zn-ion batteries is still a challenge. Herein, network C@V2O5 materials were prepared using a mild chitosan-assisted hydrothermal process. Coin-type cells, using network C@V2O5 as a cathode, zinc film as an anode, and Zn(CF3SO3)2 as an electrolyte, were also assembled, and the as-synthesized cathode delivered a high specific capacity of 361 mA h g-1 at 0.5 A g-1 and excellent cyclic stability. Specifically, after 2000 cycles, the capacity still remained about 71% of the initial value at 0.5 A g-1. Moreover, ex situ X-ray diffraction (XRD) characterizations confirmed that Zn-ion storage in the cathode was achieved through the reversible intercalation/extraction of Zn2+ during the charge/discharge process. Therefore, the network C@V2O5 cathode demonstrated potential applications for zinc-ion batteries.
AB - Vanadium oxide-based aqueous zinc-ion batteries exhibit promising potential due to their low cost and safety profiles. However, fabricating cathodes with outstanding electrochemical performance for Zn-ion batteries is still a challenge. Herein, network C@V2O5 materials were prepared using a mild chitosan-assisted hydrothermal process. Coin-type cells, using network C@V2O5 as a cathode, zinc film as an anode, and Zn(CF3SO3)2 as an electrolyte, were also assembled, and the as-synthesized cathode delivered a high specific capacity of 361 mA h g-1 at 0.5 A g-1 and excellent cyclic stability. Specifically, after 2000 cycles, the capacity still remained about 71% of the initial value at 0.5 A g-1. Moreover, ex situ X-ray diffraction (XRD) characterizations confirmed that Zn-ion storage in the cathode was achieved through the reversible intercalation/extraction of Zn2+ during the charge/discharge process. Therefore, the network C@V2O5 cathode demonstrated potential applications for zinc-ion batteries.
KW - cathode
KW - chitosan-assisted fabrication
KW - cycle performance
KW - high capacity
KW - network C@VO
KW - zinc-ion battery
UR - http://www.scopus.com/inward/record.url?scp=85112529100&partnerID=8YFLogxK
U2 - 10.1021/acsami.1c09951
DO - 10.1021/acsami.1c09951
M3 - Article
C2 - 34314171
AN - SCOPUS:85112529100
SN - 1944-8244
VL - 13
SP - 37194
EP - 37200
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
IS - 31
ER -