Research progress of hard carbon sodium storage anode materials
Sodium ion batteries have the potential to replace lithium-ion batteries in the fields of electric bicycles and energy storage due to their excellent low-temperature performance,low cost,and high safety.However,the development of low-cost,high reversible capacity,and excellent cycling stability sodium ion battery negative electrode materials has become a limiting factor for the further development of sodium ion batteries.Hard carbon materials have attracted wide spread attention in the industry due to their abundant raw material sources,low cost,easy accessibility,high carbon yield,environmental friendliness,and the presence of multiple elements.To develop high-performance hard carbon materials,the sodium storage mechanism of hard carbon materials was explored,the influence of precursor selection and microstructure on performance was analyzed,the research status of hard carbon negative electrodes was summarized,and the application prospects of hard carbon materials in sodium ion batteries were discussed
sodium ion batterynegative electrode materialhard carbonbiomassprecursor selection
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