Precursor degree of polymerization engineering to understand the sodium storage behavior of closed pores in hard carbon

Key Points

• The study aims to explore how adjusting the degree of polymerization affects the sodium storage behavior of hard carbon.
• Adjusted the degree of polymerization of biomass precursors.
• Generated hard carbon with varying closed-pore volumes.
• Analyzed the effects on sodium storage capabilities.
• Higher closed-pore volume correlates with improved sodium storage behavior.
• Engineered hard carbon shows enhanced performance compared to standard lignified structures.
• The method is applicable to various biomass sources like straw and nutshells.