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Fabrication of Nb 2 O 5 /Carbon Submicrostructures for Advanced Lithium‐Ion Battery Anodes
Ist Teil von
Chemistry : a European journal, 2022-12, Vol.28 (67)
Erscheinungsjahr
2022
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Abstract
Nb
2
O
5
possesses superior fast Li
+
storage capability for LIB anodes, benefiting from its fast pseudocapacitive behavior and low volumetric change within the cycling processes. However, the poor electric conductivity for Nb
2
O
5
restricts its reaction kinetics and rate property. Herein, Nb
2
O
5
/carbon (C) submicrostructures are fabricated by solvothermal method followed by calcination process. The Nb
2
O
5
/C submicrostructures exhibit outstanding rate behavior and cyclic performance (332 (194) mAh g
−1
after 1000 cycles at 1 (5) A g
−1
). The superior electrochemical property is attributed to the distinctive structure for Nb
2
O
5
/C submicrostructures, in which Nb
2
O
5
nanoparticles uniformly distributed within Nb
2
O
5
/C composite can protect Nb
2
O
5
nanoparticles from agglomeration, and the porous carbon matrix can enhance electron/ion conductivity. This work furnishes a novel strategy for fabricating Nb
2
O
5
/C submicrostructures with superior Li
+
storage performance, which can be potentially used to design other metal oxide/C submicrostructures for second battery anode.