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Title: Revealing mechanism responsible for structural reversibility of single-crystal VO2 nanorods upon lithiation/delithiation

Journal Article · · Nano Energy
 [1];  [1];  [2];  [3];  [3];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Shandong Univ., Jinan (China)
  3. Temple Univ., Philadelphia, PA (United States)

A pure phase of VO2(B) nanorods have been synthesized through an energy-efficient microwave hydrothermal reaction and used as cathode materials of lithium ion batteries, which exhibit promising specific capacity (e.g., 130 mA h g-1 even after 100 charge/discharge cycles) and rate capacity (e.g., ~130 mA h g-1 at a high current of 400 mA g-1). The excellent cyclability originates from the structural reversibility of VO2(B) upon lithiation/delithiation that is confirmed by the in situ high-energy synchrotron X-ray diffraction (HEXRD) and in situ x-ray adsorption near-edge spectroscopy (XANES) of the VO2 nanorods in operating battery cells. As a result, the real-time results reveal that discharge forces lithium ions to insert firstly into the tunnels with the largest size along b direction followed by the second largest tunnels along c direction, which is completely reversible in the charge process.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1365817
Alternate ID(s):
OSTI ID: 1416779
Journal Information:
Nano Energy, Vol. 36, Issue C; ISSN 2211-2855
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (8)

Large Intercalation Pseudocapacitance in 2D VO 2 (B): Breaking through the Kinetic Barrier journal August 2018
Highly Reversible Phase Transition Endows V 6 O 13 with Enhanced Performance as Aqueous Zinc‐Ion Battery Cathode journal April 2019
Synchrotron-Based X-ray Absorption Fine Structures, X-ray Diffraction, and X-ray Microscopy Techniques Applied in the Study of Lithium Secondary Batteries journal April 2018
Eco-friendly synthesis of VO 2 with stripped pentavalent vanadium solution extracted from vanadium-bearing shale by hydrothermal process in high conversion rate journal February 2019
Ultrafast Zn 2+ Intercalation and Deintercalation in Vanadium Dioxide journal May 2018
In Situ Probing Multiple-Scale Structures of Energy Materials for Li-Ion Batteries journal May 2019
Electrode Materials for Rechargeable Zinc-Ion and Zinc-Air Batteries: Current Status and Future Perspectives journal May 2019
Ultrathin VO 2 (B) Nanosheets as Cathode Material for High-Performance Hybrid Magnesium-Lithium Ion Batteries journal January 2019