Cu₂SnS₃, as a modified material for high-capacity tin-based anodes, has great potential for lithium-ion battery applications. The solvothermal method is simple, convenient, cost-effective, and easy to scale up, and has thus been widely used for the preparation of nanocrystals. In this work, Cu₂SnS₃ nanoparticles were prepared by the solvothermal method. The effects of high-temperature annealing on the morphology, crystal structure, and electrochemical performance of a Cu₂SnS₃ nano-anode were studied. The experimental results indicate that high-temperature annealing improves the electrochemical performance of Cu₂SnS₃, resulting in higher initial coulombic efficiency and improved cycling and rate characteristics compared with those of the as-prepared sample.

作为高容量锡基阳极的改性材料，Cu ₂ SnS ₃对于锂离子电池应用具有巨大的潜力。溶剂热法简单，方便，具有成本效益且易于规模化，因此已被广泛用于制备纳米晶体。在这项工作中，通过溶剂热法制备了Cu ₂ SnS ₃纳米颗粒。研究了高温退火对Cu ₂ SnS ₃纳米阳极的形貌，晶体结构和电化学性能的影响。实验结果表明，高温退火改善了Cu ₂ SnS ₃的电化学性能。与制备的样品相比，具有更高的初始库仑效率，并改善了循环和速率特性。