光电二次电池是可以有效捕捉、转化与存储太阳能，同时稳定输出电能的光电一体化器件。电池器件的结构兼容性以及电极材料电化学性能的局限导致的光充电电压低以及循环性能差是目前制约光电二次电池发展的主要问题。针对于此，本项目以基于三维石墨烯/Cu2S兼容电极的光电二次电池为研究对象，拟采用等离子体物理还原方法在构建高质量三维石墨烯的同时对石墨烯/Cu2S复合材料进行界面调控。通过多组件串联结构有效提高光充电电压，同时研究复合材料电极在传输和储存电子过程中锂离子的嵌入位点以及电子迁移路径。拟解决碳基复合材料电催化活性和导电性反向影响的矛盾以及电子储存、传输过程中复合物协同增效机制两个关键科学问题。通过器件结构和电路设计获得较高的光电转化效率、电池输出能量及循环稳定性，以期充分发挥电极材料的最大性能，为光电二次电池一体化器件技术发展提供基础理论和关键核心材料支持。

Photo-Rechargeable battery is the integrated device of the photo conversion system and the energy storage part. The main content of the present research is to improve the photo recharge open-circuit voltage and cyclic performance of the Photo-Rechargeable battery, because of the device compatibility and electrochemical performance of electrode. Just for it, it is research on 3D graphene/Cu2S as compatible electrode for Photo-Rechargeable battery. The material quality and interface structure of reduced 3D graphene oxide will be improved by the surface plasma modification and solvothermal synthesis of Cu2S on graphene. The photo recharge open-circuit voltage will be increased by connections of four modules, and the new intercalation site of Li-ion and electronic migration path will be studied. The reverse influence of electric catalytic activity and electroconductibility for carbon composite material and the synergistic interaction of composites in the charge-discharge process will be investigated. It is improved total energy conversion, storage efficiency and excellent cycling stability of the integrated device. It could provide valuable experimental foundation and theoretical basis for the new Photo-Rechargeable battery.