基于改进相变策略的高性能硬碳阳极孔结构设计。

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-10-21 DOI:10.1039/d5cc03729h

Zi Li,Xiaojie Wang,Xuewen Yu,Zhijun Qiao,Dianbo Ruan,Yuzuo Wang

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引用次数: 0

摘要

孔结构工程对硬碳（HC）阳极至关重要，但仍然具有挑战性。我们开发了一种基于相反转的策略，使用聚丙烯腈和木质素磺酸钠来调节碳化过程中的孔径分布和壁化学。由此产生的HC阳极在0.1C时可提供305 mAh g-1，在2C时容量保持率为68%，这是由于增强的离子可及性和坚固的框架。它在钠离子电容器中也表现出色，为高性能高性能电容器的设计提供了新的途径。

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Pore structure design via modified phase inversion strategy toward high-performance hard carbon anode.

Pore structure engineering is vital for hard carbon (HC) anodes but remains challenging. We developed a phase inversion-based strategy using polyacrylonitrile and sodium lignosulfonate to regulate pore size distribution and wall chemistry during carbonization. The resulting HC anode delivers 305 mAh g-1 at 0.1C and 68% capacity retention at 2C, due to enhanced ion accessibility and robust frameworks. It also performs excellently in sodium-ion capacitors, providing a novel design route for high-performance HCs.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.