Encapsulated Sb and Sb2O3 particles in waste-tire derived carbon as stable composite anodes for sodium-ion batteries. Issue 7 (19th May 2020)

• Record Type: Journal Article
• Authors: Palanisamy, Manikandan; Pol, Vilas G.; Evans, Samuel F.; Jackson, Kia; Jafta, Charl J.; Bridges, Craig A.; Dai, Sheng; Levine, Alan M.; Lee, Richard J.; Paranthaman, Mariappan Parans
• Is Part Of: Sustainable energy & fuels. Volume 4:Issue 7(2020)
• Page Start: 3613
• Page End: 3622
• Publication Date: 2020-05-19
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/d0se00408a
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : Homogenized Sb2 O3 /WTC composite anode exhibited encapsulated surface morphology and revealed stable redox peaks at 0.21/0.26 V and 0.80/0.76 V. Thus, the sodium half-cell delivered the discharge-charge capacities of 218/ 207 mA h g –1 at 37 mA g –1 . Abstract : A conductive network of waste-tire derived carbon (WTC) was used to produce homogeneous Sb/WTC and Sb2 O3 /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 Sb2 O3 /WTC anodes have been observed related to Na + intercalation and deintercalation in carbon and Na–Sb and Na3 Sb 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 Sb2 O3 /WTC materials, respectively. Both the Sb/WTC and Sb2 O3 /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 Sb2 O3 /WTC at 37 mA g −1 .