钠离子电池负极用Na3V2(PO4)3碳工程研究进展

Yaxuan He, Haibo Li
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引用次数: 0

摘要

由于nasicon型化合物具有三维开放框架、优异的结构稳定性和高离子电导率,因此被广泛应用于钠离子电池(sib)的正极材料。Na3V2(PO4)3是具有代表性的nasicon型化合物之一,其理论容量高,工作电压超过3.3 V,是sib的良好候选材料。不幸的是,Na3V2(PO4)3的电子导电性很低。本文综述了近年来提高Na3V2(PO4)3电子导电性的新型碳工程策略的研究进展。此外,我们还指出了发展NASICON正极材料存在的问题,并提出了一些建议。
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Recent Research Process of Carbon Engineering on Na3V2(PO4)3 for Sodium-Ion Battery Cathodes: A Mini Review
Owing to the 3D open framework, excellent structural stability, and high ionic conductivity, NASICON-type compounds are extensively employed as promising cathode materials for sodium-ion batteries (SIBs). Being one of the representative NASICON-type compounds, the Na3V2(PO4)3 delivers high theoretical capacity with an operating voltage exceeding 3.3 V, enabling it to be a good candidate for SIBs. Unfortunately, the Na3V2(PO4)3 suffers from low electronic conductivity. In this work, we briefly review the recent research progress on novel carbon engineering strategies to enhance the electronic conductivity of Na3V2(PO4)3. Moreover, we will point out the issues relating to the development of NASICON cathode materials and put forward some suggestions.
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