CuO及其他过渡金属氧化物纳米结构材料在锂离子电池中的研究进展

锂离子电池（LIBs）因其能量密度高、体积小、质量轻等优点在便携式储能设备中广受欢迎。然而，传统商用LIBs存在可逆容量低、循环性能差、成本高、安全性差等问题，需要进一步提高其功率密度、能量密度、寿命和安全性。过渡金属氧化物负极材料提供的可逆容量与传统石墨材料相比高2～3倍，且具有更高的嵌锂电位和更高的安全性。同时，纳米结构电极材料由于其高比容量、快速的电子/离子转移速率，以及具有可减轻体积膨胀的自由空间等优点，成为电池电极的理想材料。本文综述了氧化铜（CuO）纳米结构材料用于LIBs的研究进展，包括球状、线状、片状等纳米结构，还阐述了它们的优势；还介绍了其他过渡金属氧化物纳米结构材料在LIBs中的应用；最后，讨论了CuO及其他过渡金属氧化物纳米结构材料未来在LIBs中应用的机遇和挑战。

Research Progress of CuO and Other Transition Metal Oxide Nanostructured Materials in Lithium-Ion Batteries

Lithium ion batteries (LIBs) are widely popular in portable energy storage devices due to their high energy density, small size, and light weight. However, traditional commercial lithium-ion batteries have problems such as low reversible capacity, poor cycling performance, high cost, and poor safety. It is necessary to further improve their power density, energy density, lifespan, and safety.The reversible capacity provided by transition metal oxide negative electrode materials is 2~3 times higher than that of traditional graphite materials, and it also has higher lithium intercalation potential and higher safety. Meanwhile, nanostructured electrode materials have become ideal materials for battery electrodes due to their high specific capacity, fast electron/ion transfer rate, and the ability to reduce volume expansion in free space. This article systematically reviewed the research progress of copper oxide (CuO) nanostructured materials used in LIBs, including spherical, linear, flake, and other nanostructures, and elaborates on their advantages; And introduced the application of other transition metal oxide nanostructured materials in lithium-ion batteries. Finally, this article discussed the opportunities and challenges for the future application of copper oxide and other transition metal oxide nanostructured materials in LIBs.