Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
Publication date: 18th December 2023
ABSTRACT
The desire for reliable, high-performing, sustainable, and cost-effective batteries is increasing as society seeks to transition toward sustainable energy. New battery chemistries is constantly being explored with sodium-ion batteries (SIBs) emerging as very promising next-generation technology. This has encouraged research into the development of effective carbon anode materials, as investigated in this work. The synthesis of the carbon anode materials reported here was carried out through the direct co-carbonization of biomass and pitch at varying ratios.
By varying the ratio of soft carbon to hard carbon, changes in the microstructure and the electrochemical performance were measured. As the hard carbon (HC) ratio increased, the interlayer spacing (d-spacing) also increased, with the 100% HC sample exhibiting the largest d-spacing. The carbon anode with a higher proportion of hard carbon relative to soft carbon demonstrated the highest electrochemical performance. This indicates that to design a high performing carbon as the active anode material the interplay between surface properties and bulk microstructure is critically important. This concept will be presented on my poster.
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