精品文档---下载后可任意编辑锂离子电池新型正极材料磷酸铁锂的制备与改性讨论的开题报告摘要：磷酸铁锂（LiFePO4）是一种新型的正极材料，在锂离子电池领域具有很高的应用潜力。本文旨在讨论磷酸铁锂的制备方法和改性技术，并对其电化学性能进行测试分析。首先，通过固相法制备磷酸铁锂，在不同的制备条件下，分别讨论了不同的制备参数对产品性能的影响。其次，采纳表面修饰、杂原子掺杂等方法对磷酸铁锂进行改性，以提高其电化学性能。最后，对磷酸铁锂及其改性材料进行了电化学测试和评估。讨论结果表明：制备条件对磷酸铁锂的性能具有显著影响，合适的制备条件可以获得优良的性能；表面修饰和杂原子掺杂等改性方法可以有效提高磷酸铁锂的电化学性能；经过改性的磷酸铁锂储能性能得到了显著提升。关键词：磷酸铁锂；制备；改性；电化学性能Abstract:Lithium iron phosphate (LiFePO4) is a new type of positive electrode material with high potential in the field of lithium ion batteries. This paper aims to study the preparation methods and modification techniques of lithium iron phosphate, and test and analyze its electrochemical properties.Firstly, lithium iron phosphate was prepared by solid-phase method, and the influence of different preparation parameters on the performance of the product was studied under different preparation conditions. Secondly, surface modification, heteroatom doping and other methods were used to modify lithium iron phosphate to improve its electrochemical performance. Finally, the electrochemical properties of lithium iron phosphate and its modified materials were tested and evaluated.The results show that the preparation conditions have a significant impact on the performance of lithium iron phosphate, and suitable preparation conditions can obtain excellent performance; surface modification and heteroatom doping can effectively improve the electrochemical 精品文档---下载后可任意编辑performance of lithium iron phosphate; the energy storage performance of lithium iron phosphate after modification has been significantly improved.Keywords: lithium iron phosphate; preparation; modification; electrochemical performance.
