Jin-ting LI , Nurbiye Sawut , Yi-chu ZHAO , Ping LIU , Yan-xia WANG , Yu-liang CAO
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Microstructure-mechanism-performance relationships in hard carbon anode materials for sodium-ion batteries
The advantages of sodium-ion batteries (SIBs) for large-scale energy storage are well known. Among possible anode materials, hard carbon (HC) stands out as the most viable commercial option because of its superior performance. However, there is still disagreement regarding the sodium storage mechanism in the low-voltage plateau region of HC anodes, and the structure-performance relationship between its complex multiscale micro/nanostructure and electrochemical behavior remains unclear. This paper summarizes current research progress and the major problems in understanding HC's microstructure and sodium storage mechanism, and the relationship between them. Findings about a universal sodium storage mechanism in HC, including predictions about micropore-capacity relationships, and the opportunities and challenges for using HC anodes in commercial SIBs are presented.
期刊介绍：
New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.
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