精品文档---下载后可任意编辑SnO2C 复合材料的制备及作为锂离子电池负极材料的讨论的开题报告摘要：本文主要讨论了一种 SnO2C 复合材料的制备方法，并将其应用于锂离子电池的负极材料。首先采纳共沉淀法制备了 SnO2C 复合材料，然后利用 XRD、SEM 等表征方法对材料进行了表征。结果表明，制备得到的SnO2C 复合材料呈现出较好的结晶性和光学性能。随后，使用无烟煤为碳源，将 SnO2C 复合材料与二氧化硅 SiO2 共同制备成为复合材料SnO2C/SiO2，并将其用于锂离子电池的负极材料。通过循环伏安（CV）和恒流充放电测试等电化学性能测试，发现 SnO2C/SiO2 复合材料具有较好的充放电性能和循环性能，经过 50 个循环后，仍然保持了较高的比容量。关键词：SnO2C 复合材料；制备；锂离子电池；负极材料；电化学性能Abstract:The study explores a SnO2C composite material preparation method and applies it to the negative electrode material of lithium-ion batteries. Firstly, SnO2C composite material was prepared by co-precipitation method, and then the material was characterized by XRD, SEM and other characterization methods. The results showed that the prepared SnO2C composite material had good crystallinity and optical properties. Next, SnO2C composite material and SiO2 were co-prepared and made into a composite material SnO2C/SiO2. The composite material was applied to the negative electrode material of lithium-ion battery. Through electrochemical performance tests such as cyclic voltammetry (CV) and constant current charge and discharge, the SnO2C/SiO2 composite material has good charge-discharge performance and cycle performance. After 50 cycles, it still maintains a higher specific capacity.Keywords: SnO2C composite material; Preparation; Lithium-ion battery; Negative electrode material; Electrochemical performance一、讨论背景及意义精品文档---下载后可任意编辑锂离子电池是一种很重要的化学电源，广泛用于移动通讯、笔记本电脑、电子游戏机和电动汽车等领域。其中负极材料是决定电池性能的关键之一...
