摘要: 作为正极的橄榄石型的磷酸铁锂是用于锂离子电池的几种材料中发展是最快、最有前途的正极材料之一。但是,因为它的导电性能差,限制了它的实际应用。在这项研究中,我们报告了3不同的磷酸铁锂材料,并对它在不同温度下的电化学性能的进行了深入的研究。通过用X射线衍射,循环伏安测试,对磷酸铁锂的结构和电化学性能进行了表征。在这些材料的研究中,相同原料的情况下40度的电池性能比20度的好。电化学性能的改进是由于温度的增高。4849
关键字: 锂离子电池;磷酸铁锂;正极材料;电化学性能;温度
The work of LiFePO4 ’s temperature
Abstract:Olivine-type lithium iron phosphate as cathode material for lithium ion batteries several development is one of the fastest and the most promising cathode material. However, poor conductivity limits it’s practical application. In this study, we report three different lithium iron phosphate material, and we research deeply in the electrochemical properties of different temperatures. We characterized the structure and electrochemical properties of lithium iron phosphate by X-ray diffraction, cyclic voltammetry. In these materials, the cell performance of 40 degrees is better than 20 degrees when they are the same raw material. The Electrochemical Performance improvement is due to the increase in temperature.