School of Materials Science and Engineering, Shanghai University, Shanghai, 200072, China.
Materials and Manufacturing Futures Institute, School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
Adv Sci (Weinh). 2023 Jan;10(3):e2204875. doi: 10.1002/advs.202204875. Epub 2022 Nov 20.
With the development of flexible electronics, the demand for flexibility is gradually put forward for its energy supply device, i.e., battery, to fit complex curved surfaces with good fatigue resistance and safety. As an important component of flexible batteries, flexible electrodes play a key role in the energy density, power density, and mechanical flexibility of batteries. Their large-scale commercial applications depend on the fulfillment of the commercial requirements and the fabrication methods of electrode materials. In this paper, the deformable electrode materials and structural design for flexible batteries are summarized, with the purpose of flexibility. The advantages and disadvantages of the application of various flexible materials (carbon nanotubes, graphene, MXene, carbon fiber/carbon fiber cloth, and conducting polymers) and flexible structures (buckling structure, helical structure, and kirigami structure) in flexible battery electrodes are discussed. In addition, the application scenarios of flexible batteries and the main challenges and future development of flexible electrode fabrication are also discussed, providing general guidance for the research of high-performance flexible electrodes.
随着柔性电子的发展，人们对其能源供应装置——电池的柔性提出了逐渐要求，以适应具有良好耐疲劳性和安全性的复杂曲面。作为柔性电池的重要组成部分，柔性电极在电池的能量密度、功率密度和机械灵活性方面起着关键作用。它们的大规模商业应用取决于电极材料的商业要求和制造方法的实现。本文总结了用于柔性电池的可变形电极材料和结构设计，目的是实现灵活性。讨论了各种柔性材料（碳纳米管、石墨烯、MXene、碳纤维/碳纤维布和导电聚合物）和柔性结构（屈曲结构、螺旋结构和剪纸结构）在柔性电池电极中的应用优缺点。此外，还讨论了柔性电池的应用场景以及柔性电极制造的主要挑战和未来发展方向，为高性能柔性电极的研究提供了一般性指导。
