TY  - CONF
A1  - Wu, Shu-Han
T1  - Sodium Storage Mechanisms and Performance  Improvement of Synthetic Hard Carbon Materials
N2  - Hard carbons (HCs) are promising anodes for sodium-ion batteries (SIBs) due to their high capacity and low cost. However, their broader use is limited by an incomplete understanding of sodium storage mechanisms. Internal porosity is key to high capacity, but tuning its chemical functionality remains challenging. In this study, we designed core–shell carbon materials featuring closed pores and tailored surface chemistry to distinguish reversible sodium storage from irreversible capacity losses associated with solid electrolyte interphase (SEI) formation. Our results reveal that external porosity can be clearly converted into internal porosity, leading to enhanced sodium storage performance, with capacities exceeding those of lithium in graphite.
T2  - Advanced Automotive Battery Conference (AABC) 2025
CY  - Mainz, Germany
DA  - 23.06.2025
KW  - Sodium-ion batteries
KW  - Hard carbon
KW  - Core-shell materials
PY  - 2025
AN  - OPUS4-65133
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -