College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
Carbohydr Polym. 2019 Mar 1;207:447-459. doi: 10.1016/j.carbpol.2018.12.010. Epub 2018 Dec 7.
With the increasing consumption of global fossil energy and environmental pollution, the development of green renewable energy and efficient energy storage technology become an urgent problem to solve. Supercapacitors have drawn a great interest for use in wearable electronic devices due to their portability and stable performance. The electrode is very important when preparing a high-performance flexible supercapacitor, which requires good electrochemical performance and flexibility. Graphene and nanocellulose are excellent flexible electrode material for supercapacitors, and nanocellulose is often used as a substrate material for electronic devices because of its good biodegradability, mechanical flexibility and chemical reactivity. In this work, the structure design and assembly method of the nanocellulose-graphene composite materials used for flexible supercapacitors are reviewed. The mechanical flexibility, specific capacitance, electrochemical performance, cyclic stability, renewability and biodegradability are taken into account, so as to evaluate the performance of the composite materials and to better assess the merits of this material with respect to real applications.
随着全球化石能源的消耗和环境污染的加剧，绿色可再生能源和高效储能技术的发展成为亟待解决的问题。超级电容器因其便携性和稳定的性能而引起了人们对可穿戴电子设备的极大兴趣。在制备高性能柔性超级电容器时，电极非常重要，需要具有良好的电化学性能和柔韧性。石墨烯和纳米纤维素是超级电容器的优秀柔性电极材料，纳米纤维素由于其良好的生物降解性、机械柔韧性和化学反应性，常被用作电子设备的基底材料。在这项工作中，综述了用于柔性超级电容器的纳米纤维素-石墨烯复合材料的结构设计和组装方法。考虑了机械柔韧性、比电容、电化学性能、循环稳定性、可再生性和生物降解性，以评估复合材料的性能，并更好地评估该材料在实际应用中的优点。
