Files and links (1)
Published, Version of Record (VoR)CC BY V4.0, Open
Conference proceeding
Effect of Annealing on Electrochemical Stability of Chemically Preintercalated Bilayered Vanadium Oxide Cathodes in Batteries
LOW-DIMENSIONAL MATERIALS AND DEVICES 2019, v 11085, pp 110850Q-110850Q-10
01 Jan 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Bilayered vanadium oxide, delta-V2O5.nH(2)O, is a promising electrode material for Na-ion batteries due to its large interlayer spacing, 11.5 angstrom, that allows for insertion of many charge-carrying ions. Previously, delta-V2O5.nH(2)O electrodes have shown high capacities in Na-ion batteries1-3. However, capacity fade is common when synthesized via cost effective, sol-gel routes. Poor cycling stability is attributed to the loss of V-O layers stacking order upon cycling1. Therefore, methods to improve the structural stability of the delta-V2O5.nH(2)O phase are necessary for its utilization as Na-ion cathodes.
A synthesis approach known as chemical pre-intercalation allows for the insertion of inorganic cations into the structure of electrode materials prior to electrochemical cycling. Previously, we have demonstrated that chemical pre-intercalation of Na-ions into the bilayered phase results in high initial capacities above 350 mAh g(-1) in Na-ion cells(3). In this study, we focus on the incorporation of low-temperature annealing to increase structural and electrochemical stability of the bilayered phase in Na-ion batteries. We demonstrate that annealing can lead to increased crystallinity leading to increased cycling stability. This result shows how synthesis approaches affect the structure of the bilayered vanadium oxide phase and can lead to increased electrochemical stability in Na-ion cells.
Metrics
11 Record Views
Details
- Title
- Effect of Annealing on Electrochemical Stability of Chemically Preintercalated Bilayered Vanadium Oxide Cathodes in Batteries
- Creators
- Mallory Clites - Drexel UniversityRyan Andris - Drexel UniversityPhillip Ridley - Drexel UniversityEkaterina A. Pomerantseva - Drexel University
- Contributors
- N P Kobayashi (Editor)A A Talin (Editor)A V Davydov (Editor)
- Publication Details
- LOW-DIMENSIONAL MATERIALS AND DEVICES 2019, v 11085, pp 110850Q-110850Q-10
- Series
- Proceedings of SPIE
- Publisher
- Spie-Int Soc Optical Engineering
- Number of pages
- 10
- Grant note
- DMR-1609272 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000502318700005
- Scopus ID
- 2-s2.0-85073878502
- Other Identifier
- 991020785739904721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Optics