There is provided the use of a nitro-substituted aromatic compound of formula (I), (II), (III), or (IV) and a copolymers comprising repeat units of formula (III) and/or (IV) as an electrode material as well as the use of such compound in the manufacture of an electrode. An electrode composite material and an electrode comprising this compound are also provided. When used in metal-ion batteries, preferably Li-ion batteries, the electrode of the invention has a combination of high operating voltage (e.g. > 2.0 V) and high specific capacities (e.g. > 300 mAh g-1). To the best of the inventors' knowledge, some of them have the highest specific capacity, along with high voltage, among organic electrode materials reported to date for application in alkali-ion batteries. (I), (II), (III), (IV).
本发明提供了一种使用式(I)、(II)、(III)或(IV)的亚硝基取代芳香化合物以及由式(III)和/或(IV)重复单元组成的共聚物作为电极材料的方法,同时还提供了在制造电极时使用这种化合物的方法。还提供了一种电极复合材料和包含该化合物的电极。当用于
金属离子电池,特别是
锂离子电池时,本发明的电极具有高工作电压(例如>2.0 V)和高比容量(例如>300 mAh g-1)的组合。据发明者所知,其中一些化合物具有迄今为止报道的有机电极材料中最高的比容量和高电压。 (I)、(II)、(III)、(IV)。