LiFePO4正极材料的制备与改性研究进展  

Research progress of preparation and modification of LiFePO4 cathode materials

作　　者：唐伟建 张卫新 杨则恒 陈章贤 TANG Wei-jian;ZHANG Wei-xin;YANG Ze-heng;CHEN Zhang-xian(School of Chemistry and ChemicalEngineering,Hefei University of Technology,Hefei Anhui 230009,China)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《电源技术》2020年第8期1077-1085,共9页Chinese Journal of Power Sources

基　　金：国家自然科学基金项目(91534102,21271058);安徽省重大科技专项(201903a05020021)。

摘　　要：橄榄石型结构的磷酸铁锂(LiFePO4)正极材料具有循环寿命长、电压平台高、成本低、污染小等优势,近年来已被广泛应用于新能源汽车和大型储能装置等领域。但其自身存在锂离子扩散系数和电子电导率低、低温性能差等缺点,导致其在实际应用上存在一定程度的限制。因此,需要进一步研究开发具有优异电化学性能的LiFePO4正极材料。总结了本课题组在LiFePO4正极材料的制备和改性两方面的研究进展。In recent years,the olivine-structure LiFePO4 cathode material has been widely used in electric vehicles and large-scale energy storage devices due to its low cost,low pollution,long cycle life and high voltage platform.However,its low lithiumion diffusion coefficient,low electronic conductivity and poor low-temperature performance have led to some limitations in practical applications.Therefore,it is necessary to further investigate and develop LiFePO4 cathode materials with enhanced electrochemical performance.The recent progress of our research group in the preparation and modification of LiFePO4 cathode materials was summarized.

关 键 词：锂离子电池 正极材料 LIFEPO4 制备 改性 

分 类 号：TM912[电气工程—电力电子与电力传动]