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Title: | Reduced Graphene Oxide Decorated Sb Nanoparticles: A High Performance Anode for Sodium-Ion Batteries |
Authors: | Dashairya, Love Saha, Partha |
Keywords: | Sb Nanoparticles Sodium-Ion Batteries |
Issue Date: | Dec-2017 |
Citation: | National Conference on “Challenges in Electrochemical Energy Storage and Conversion Systems”(Battery), Coimbatore, Tamilnadu, India, 15-16 December 2017 |
Abstract: | Rechargeable batteries have wide applications in portable electronics, and hybrid electric vehicles where there is always a demand for higher capacity and longer lifetime. Metal anodes (Sb, Sn, Si, Ge, etc.) can offer high sp. capacity and are amenable for room temperature Na-ion batteries. However, large volume expansion/contraction of metal anodes during alloying/de-alloying reactions with sodium is an impediment for their commercialization and growth. The present work try to tackle the above problems by developing reduced graphene oxide (rGO) decorated antimony nanoparticles-based (SbNPs) anode using SbCl3, graphene oxide, and sodium borohydride. It is hypothesized that rGO coating on SbNPs will act as a buffer and will prevent the large volumetric shrinkage thereby improving the rate capability and capacity fade with cycles. Crystallinity, microstructure, morphology of as-synthesized Sb/rGO composite was characterized by XRD, FESEM, TEM, FTIR and BET surface analysis show the formation mesoporous rGO decorated SbNPs (~140 nm). Preliminary electrochemical results demonstrate that Sb/rGO can deliver a decent discharge and charge capacity of ~383 mAhg-1 and ~406 mAhg-1 respectively, at a constant current density of ~50 mAg-1 for first cycle |
Description: | Copyright of this document belongs to proceedings publisher |
URI: | http://hdl.handle.net/2080/2880 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2017_BATTERY_LDashairya_Reduced.pdf | Poster Presentation | 2.88 MB | Adobe PDF | View/Open |
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