SiC was synthesised by electro-deoxidation of a SiO₂/graphite mixture in a CaCl₂ melt at 1173 K, and the reduced product was characterised by XRD, SEM-EDX, XPS and TEM-STEM. The SiC prepared had a powdery morphology, existed exclusively in the β-phase, and possessed a unique nanostructure with nanowires of 400-600 nm in length and 10-40 nm in diameter. Cyclic voltammetric studies demonstrated that the nanowire SiC was electroactive towards Li⁺ ions. Battery tests yielded a specific capacity on the order of 1000 mAh/g at a charge-discharge rate of 0.5 A/g and a coulombic efficiency of more than 99% over hundreds of cycles. Being facile, affordable and scalable, the electrochemical synthesis method may be the missing link in making nano-SiC available for battery as well as other large-scale technologies. Some further improvement of the coulombic efficiency of the material made would however be necessary before its application in a practical cell can be considered.

通过在1173 K的CaCl ₂熔体中对SiO ₂ /石墨混合物进行电脱氧来合成SiC ，并通过XRD，SEM-EDX，XPS和TEM-STEM对还原产物进行表征。制备的SiC具有粉末形态，仅存在于β相中，并且具有独特的纳米结构，其纳米线的长度为400-600nm，直径为10-40nm。循环伏安研究表明，纳米线SiC对Li ⁺具有电活性离子。电池测试以0.5 A / g的充放电速率产生了1000 mAh / g的比容量，在数百个循环中库仑效率超过99％。电化学合成方法简便易行，价格适中且可扩展，因此可能成为使纳米SiC可用于电池以及其他大规模技术的缺失环节。然而，在可以考虑将其应用到实际电池中之前，有必要对所制造的材料的库仑效率进行一些进一步的改进。