Reduced graphite oxide films are potential free-standing materials for electrodes, its structure may has notable effect on their electrochemical performances and thus further studies are needed. In this paper, reduced graphite oxide films with different thickness were prepared by self-assembly and following thermal reduction in air at different low temperature (less than 400 °C). Electrochemical tests showed that when the films were directly used as lithium ion battery electrodes, C/O ratios of films had influence on conductivity and thus made the film reduced at 200 °C inappropriate to be used as electrodes. Further studies showed that thickness of films was another important factor related to their electrochemical performances, the increased thickness made it difficult for Li⁺ to diffuse through the films, which reduced the specific capacities of electrodes. The studies in this paper may be meaningful for researchers to use reduced graphite oxide as substrates or additives for preparing electrodes.

还原的氧化石墨膜是潜在的电极自立材料，其结构可能对其电化学性能产生显着影响，因此需要进一步研究。在本文中，通过自组装并在不同的低温下（低于400°C）在空气中进行热还原，制备了具有不同厚度的还原氧化石墨膜。电化学测试表明，当将膜直接用作锂离子电池电极时，膜的C / O比会影响电导率，因此在200°C下还原的膜不适合用作电极。进一步的研究表明，膜的厚度是与其电化学性能有关的另一个重要因素，膜厚度的增加使得Li ⁺扩散穿过薄膜，这降低了电极的比容量。本文的研究对于研究人员使用还原的氧化石墨作为基材或制备电极的添加剂可能具有重要意义。