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In situ pore sealing of cellulose derived hard carbon via coal tar cross linking for high capacity sodium ion batteries
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DOI：10.1016/j.nanoen.2026.112257.png)
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Abstract
En 中文
• Coal tar/CMC co-pyrolysis eliminates open pore defects via cross-linking and thermal shrinkage. • Cross-linking and thermal shrinkage seal open pores, boosting closed pore volume from 0.0143 to 0.1280 cm3 g−1. • The CMC-CT anode shows 343.98 mAh g−1 capacity (212.14 mAh g−1 plateau capacity) and excellent stability at 1500 mAg−1. • Practical viability is proven in a full cell with an NVP cathode, achieving 90.46% retention over 200 cycles. • In-situ and ex-situ characterizations confirm a typical adsorption-pore filling sodium storage mechanism.
Keywords:
Hard carbon
Sodium ion battery
Coal tar
Closed pore
Cross linking
Journal
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17.1
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1.1W
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13.0W
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