A study of the influence of film-formation additive and surface coating on the performance of Lithium Nickel Manganese Cathode Material

摘要 随着能源和环境问题的日益凸显，锂离子电池作为新的储能方式越来越广泛地应用在电动汽车(EV)，混合动力电动汽车(HEV)和插入式混合动力电动汽车(PHEV)等领域。为了获得更高的能量密度和功率密度，开发高电压正极材料如5V尖晶石LiNi0.5Mn1.5O4（LNMO）和与之相关的基础研究成为锂离子电池研究的重要方向之一。然而，造成LNMO容量衰减的因素主要有两个方面：LNMO的工作电压超出了电解液的电化学窗口（Abstract With the energy and environmental issues becoming increasingly serious, Lithium-ion batteries (LIBs) are now widely used in portable electronic devices, hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs) and pure electric vehicles (PEVs), etc.. The application of high-voltage cathode material like LiMn1.5Ni0.5O4 (LNMO) with a 4.7 V voltage platform has been conside...学位：理学硕士院系专业：化学化工学院_物理化学学号：2052012115156