Through the covalent bonding between naphthalenediimide diamine (NDIDA) and graphene oxide (GO), we synthesize NDIDA-functionalized graphene oxide (NDIDA-GO). The as-synthesized NDIDA-GO is characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, Raman spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and the Brunauer–Emmett–Teller surface area analysis. As a cathode material for lithium-ion batteries, within a voltage window of 4.5–1.5 V, NDIDA-GO exhibits a high specific capacity, good cyclic stability, and rate capability, keeping a specific capacity of 240 mA h g⁻¹ after 50 cycles at 50 mA g⁻¹. This work provides an effective route for the development of high-performance organic-based cathode materials for lithium-ion batteries.

中文翻译：

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萘二酰亚胺二胺对氧化石墨烯的功能化，用于锂离子电池的高性能正极材料†

通过萘二酰亚胺二胺（NDIDA）和氧化石墨烯（GO）之间的共价键，我们合成了NDIDA-官能化氧化石墨烯（NDIDA-GO）。合成后的NDIDA-GO具有粉末X射线衍射，傅里叶变换红外光谱，热重分析，拉曼光谱，X射线光电子能谱，扫描电子显微镜，透射电子显微镜和Brunauer-Emmett-Teller表面积的特征分析。作为锂离子电池的正极材料，NDIDA-GO在4.5–1.5 V的电压范围内显示出高的比容量，良好的循环稳定性和倍率性能，在50次循环后仍保持240 mA hg ^-1的比容量在50 mA g ^-1时。这项工作为开发用于锂离子电池的高性能有机基正极材料提供了一条有效途径。