Abstract
A conductive network of waste-tire derived carbon (WTC) was used to produce homogeneous Sb/WTC and Sb2O3/WTC composite materials via ball milling as promising anodes for sodium-ion batteries (SIBs). Highly reversible redox peaks at 0.81/0.71, 0.25 V for Sb/WTC and 0.80/0.76, 0.21/0.26 V for Sb2O3/WTC anodes have been observed related to Na+ intercalation and deintercalation in carbon and Na-Sb and Na3Sb as plausible conversion/alloy reactions. Sodium half-cells delivered reversible discharge capacities of 206 mA h g-1 and 207 mA h g-1 at a current density of 37 mA g-1 for the composite Sb/WTC and Sb2O3/WTC materials, respectively. Both the Sb/WTC and Sb2O3/WTC composite materials showed impressive capacity retention with 85% and 88%, respectively after 100 cycles. Rate capability studies at 60 °C yielded an enhanced capacity of 240 mA h g-1 for Sb/WTC and 300 mA h g-1 for Sb2O3/WTC at 37 mA g-1.
| Original language | English |
|---|---|
| Pages (from-to) | 3613-3622 |
| Number of pages | 10 |
| Journal | Sustainable Energy and Fuels |
| Volume | 4 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2020 |
Funding
The research on the synthetic carbon and Sb/Sb2O3 composite materials as novel battery electrodes was sponsored by the U.S. Department of Energy, Office of Science, the Office of Basic Energy Sciences, the Materials Sciences and Engineering Division. PU authors thank the Purdue University and School of Chemical Engineering for their generous startup funding. SFE is grateful for a fellowship from the Bredesen Center for Interdisciplinary Graduate Education. Notice: this manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
