Nb and Ni Nanoparticles Anchored on N-Doped Carbon Nanofiber Membrane as Self-Supporting Anode for High-Rate Lithium-Ion Batteries.

Content Provider	Europe PMC
Author	Zhang, Yezheng Zhang, Shan Zhao, Shuo Cui, Yingxue Lian, Jiabiao Li, Guochun
Editor	Costa, Carlos Miguel
Copyright Year	2022
Abstract	A flexible N-doped carbon nanofiber membrane loaded with Nb and Ni nanoparticles (Nb/Ni@NC) was prepared using electrospinning technology and a subsequent thermal annealing method and used as a self-supporting anode material for lithium-ion batteries. The Nb/Ni@NC nanofiber membrane had excellent flexibility and could be folded and bent at will without fragmentation and wrinkling; the nanofibers also had a uniform and controllable morphology with a diameter of 300–400 nm. The electrochemical results showed that the flexible Nb/Ni@NC electrode could deliver a high discharge capacity of 378.7 mAh g−1 after 200 cycles at 0.2 A g−1 and an initial coulombic efficiency of 67.7%, which was higher than that of the pure flexible NC anode in contrast. Moreover, a reversible discharge capacity of 203.6 mAh g−1 after 480 cycles at 1.0 A g−1 was achieved by the flexible Nb/Ni@NC electrode with a capacity decay for each cycle of only 0.075%, which showed an excellent rate capability and cycling stability.
Journal	Nanomaterials (Basel, Switzerland)
Volume Number	12
PubMed Central reference number	PMC9654905
Issue Number	21
PubMed reference number	36364499
e-ISSN	20794991
DOI	10.3390/nano12213724
Language	English
Publisher	MDPI
Publisher Date	2022-10-23
Access Restriction	Open
Rights License	Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2022 by the authors.
Subject Keyword	lithium-ion batteries flexible anode electrospinning nanofiber membrane self-supporting
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering Materials Science