Unraveling the Microcrystalline Carbon Evolution Mechanism of Biomass-Derived Hard Carbon for Sodium-Ion Batteries

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(9), P. 8326 - 8336

Published: April 12, 2024

Microcrystalline carbon is the essential constituent unit that constitutes hard material for sodium-ion batteries. However, evolution mechanism of microcrystalline remains controversial, on account diversity biomass composition. Here, we conducted a systematic study evolutionary using lignin and cellulose as models. It was found more readily converted into structures than cellulose. Owing to differences in pyrolysis processes, lignin-derived exhibits isotropic arrangement properties evolves long-range ordered graphite-like with increasing temperatures. In contrast, anisotropic cellulose-derived allows them maintain disordered under high-temperature pyrolysis. Upon further analysis four forestry wastes different compositional ratios prepare carbon, proper ensure sufficient amount while avoiding overgrowth where tightness stacking structure positively correlated content. Besides, coconut-shell-derived has short-range high capacity 329.3 mAh g–1.

Language: Английский

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Microstructure and surface chemistry modification strategies of lignite-based hard carbon anode by high temperature carbonization for enhanced sodium ion storage

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 113, P. 115684 - 115684

Published: Feb. 8, 2025

Language: Английский

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Development of graphitic and non-graphitic carbons using different grade biopitch sources

Carbon, Journal Year: 2024, Volume and Issue: unknown, P. 119770 - 119770

Published: Oct. 1, 2024

Language: Английский

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Advanced hard carbon materials for practical applications of sodium-ion batteries developed by combined experimental, computational, and data analysis approaches

Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101401 - 101401

Published: Oct. 1, 2024

Language: Английский

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Controlling of pseudo-graphite proportion in amorphous carbon to enhance dipole polarization for microwave absorption

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137422 - 137422

Published: March 1, 2025

Language: Английский

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Modifying lignite-derived hard carbon with micron carbon tubes to improve sodium-ion storage

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 27, P. 100929 - 100929

Published: July 25, 2024

Language: Английский

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Uncovering the Salt‐Controlled Porosity Regulation in Coal‐Derived Hard Carbons for Sodium Energy Storage

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract Coal is a promising precursor of hard carbon (HC) anodes for sodium‐ion batteries (SIBs), by virtue resource abundance, low cost, and high product yield. However, the concomitant inorganic salt usually recognized as impurities plays an obscure even contradictory effect on regulation pore structure in HCs. Herein, two‐step pyrolysis procedure to representative salty coal performed, which acid washing program selectively inserted. It illuminated that acts template or activating agent generation open pores at temperatures but inhibits closure during following high‐temperature carbonization. The optimized HC delivers reversible capacity 322.4 mAh g −1 , plateau 192 initial coulombic efficiency 80%, outperforming most coal‐based Assembled with NVPOF cathode, full‐cell exhibits energy density 284.7 Wh kg . This work not only provides systematic understanding salt‐dependent modulation also practices simple, cost‐effective, potentially scalable technique production

Language: Английский

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Overview of coals as carbon anode materials for sodium-ion batteries

Clean Energy, Journal Year: 2024, Volume and Issue: 8(4), P. 197 - 218

Published: June 5, 2024

Abstract Energy storage is an important technology in achieving carbon-neutrality goals. Compared with lithium-ion batteries, the raw materials of sodium-ion batteries are abundant, low-cost, and highly safe. Furthermore, their costs expected to be further reduced as large-scale applications take off, making them viable for energy applications. The primary anode material hard carbon, which has a high capacity but relatively expensive, limiting its storage. In order widen other fields, it particularly develop that have both performance low cost. Coals, abundant reserves worldwide availability, can serve low-cost carbon sources materials. Additionally, coals different grades metamorphism structural characteristics tailored coal-based batteries. Recent research on tailoring summarized recent progress made towards mitigating existing issues analysed this review. Specifically, impacts prepared using direct carbonization discussed detail. Studies improving electrochemical performances through pore microcrystalline structure controls surface well interface modifications presented. Finally, advantages disadvantages preparation methods identified. To make industrial more viable, importance de-ashing process introduced.

Language: Английский

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Microstructure modulation of hard carbon derived from long-flame coal to improve electrochemical sodium storage performances

Fuel Processing Technology, Journal Year: 2024, Volume and Issue: 267, P. 108159 - 108159

Published: Nov. 27, 2024

Language: Английский

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