2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 9. Energy Production, Secondary Battery
| Editors: | F. Kongoli, H. Dodds, M. Mauntz, T. Turna, V. Kumar, K. Aifantis |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 170 pages |
| ISBN: | 978-1-987820-98-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Preparation of High-Performance Cathode and Anode Materials for Sodium-Ion Batteries and Investigating the Reaction Mechanism
Ghulam Ali1; Ji Young Kim1; Hee-Dae Lim1; Kyung Yoon Chung1;1KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY (KIST), Seoul, South Korea;
Type of Paper: Keynote
Id Paper: 389
Topic: 14
Abstract:
The demand for energy storage systems (ESS) has increased tremendously in the last decade due to their use in a variety of applications ranging from mid- to large-scale. The most important factors in the development of ESS include high-performance and cost-effective systems. At present, lithium-ion batteries (LIBs) are being used as storage devices but their application is limited to small- to medium-scale. The main reasons to not use LIBs at large-scale are high production cost and limited lithium resources. While searching for alternatives, sodium-ion batteries (SIBs) have emerged as a potential candidate for the use of ESS, which is considered cost-effective and also share similar electrochemical principle to LIBs. However, high-performance cathode and anode materials are urgently required for the commercialization of SIBs.
In the search of high-performance electrode materials, we have prepared several cathode and anode materials for SIBs. I will briefly discuss the preparation and electrochemical properties of the high-performance cathode materials, which include FeF3.0.5H2O and olivine-type NaFePO4, and also discuss the investigated reaction mechanism. The nanocomposite of FeF3.0.5H2O and reduced graphene oxide has shown high sodium storage performance where it delivers a capacity of 266 mAh g-1 while NaFePO4 has shown excellent cyclability with a capacity retention of 94% after 100 cycles. Further, alloying-based SnF2 anode material was prepared and the electrochemical properties, as well as reaction mechanism, were systematically investigated. The nanocomposite of SnF2 and acetylene black has shown promising electrochemical performance where it delivers a high capacity of 563 mAh g-1. In-situ XRD and synchrotron-based X-ray absorption spectroscopy (XAS) were used to investigate the reaction mechanism of the above-mentioned materials. The details of the investigated reaction mechanism will be discussed in my presentation.
Keywords:
Anodes; Cathodes; Characterisation; SecondaryBattery;References:
[1] Ali, G., S. H. Oh, S. Y. Kim, J. Y. Kim, B. W. Cho and K. Y. Chung, Journal of Materials Chemistry A 3(19): 10258-10266 (2015)[2] Ali, G., J. H. Lee, D. Susanto, S. W. Choi, B. W. Cho, K. W. Nam and K. Y. Chung, ACS Applied Materials & Interfaces 8(24): 15422-15429 (2016).
[3] Ali, G., J. H. Lee, S. H. Oh, H. G. Jung and K. Y. Chung, Nano Energy 42: 106-114 (2017).