Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)
DOI: https://doi.org/10.29363/nanoge.nfm.2022.133
Publication date: 11th July 2022
Sodium ion batteries (SIBs) emerged as alternative energy systems to lithium ion batteries (LIB) owing to the large abundance and availability of sodium resources, which might afford a long term and low cost solution to satisfy continuous growing demands. Hard carbon (HC) materials become the most appealing anodes due to their large interlayer distance and disordered structure facilitating Na-ion insertion-extraction. Many precursors were explored, leading to the design of hard carbons with different features and electrochemical performances. The aim of this work is to give a general overview on how the synthesis conditions (precursors, temperature, process) impact the hard carbon characteristics (porosity, surface chemistry, morphology and structure) [1-2]. Further, the relationship between the HC properties and the performance (initial coulombic efficiency, capacity and cycle stability) will be emphasized [3,4]. Lastly, insights on the sodium storage mechanism in hard carbon will be provided [3, 5] along with some challenges that need to be still addressed [6].
The involved authors in these works are acknowledged, as well as the financial support.
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