CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11594 > Article
Presentation
22 March 2021 Vanadium carbide nanowires cathode with excellent cycle stability for lithium-ion batteries
Sanghee Nam, Ilkwon Oh, Saewoong Oh
Author Affiliations +
Proceedings Volume 11594, NDE 4.0 and Smart Structures for Industry, Smart Cities, Communication, and Energy; 115940B (2021) https://doi.org/10.1117/12.2583074
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
Vanadium carbide (V8C7) nanowires (NWs) axially grown on carbon cloths (CCs) as multi-ion acceptable cathode for both lithium (LIBs) and sodium-ion batteries (SIBs) were reported here. Using a facile hydrothermal method, we grew V2O3 NWs on CCs and subsequently reduced them to V8C7 by annealing with carbon sources under a H2/Ar atmosphere. In striking contrast to V2O5 NWs cathodes obtained by annealing under air atmosphere, the V8C7 NWs exhibit outstanding cycle stability during 500 cycles, and good rate capability for both LIB and SIB. V8C7 NWs as cathode active materials for LIBs exhibited 203.9 mAh g-1 in specific capacity at 0.1C after 500 cycles, representing 91.12% in cyclic retention and coulombic efficiency of 99.84%. As cathodes in SIBs, the V8C7 NWs delivered 176.34 mAh g-1 in specific capacity at 0.1C during 300 cycles. Due to its defect sites by removal of the oxygen framework in V2O3 NWs during the annealing step, and preservation of their unique 1D NW structure, the superior electrochemical performance is obtained. Moreover, the CCs utilized here as the current collector, provided a flexible 3D substrate that was able to mitigate the volume changes during cation intercalation/deintercalation, in conjunction with high electrical conductivity and chemical stability.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Sanghee Nam, Ilkwon Oh, and Saewoong Oh "Vanadium carbide nanowires cathode with excellent cycle stability for lithium-ion batteries", Proc. SPIE 11594, NDE 4.0 and Smart Structures for Industry, Smart Cities, Communication, and Energy, 115940B (22 March 2021); https://doi.org/10.1117/12.2583074
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Nanowires
Vanadium
Annealing
Laser induced breakdown spectroscopy
Carbon
Lithium
Oxygen
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top