Zhou Mi, Han Daohong, Cui Xiangming, Wang Jingzhao, Chen Xin, Wang Jianan, Sun Shiyi, Yan Wei
Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.
Nanomaterials (Basel). 2024 Nov 20;14(22):1856. doi: 10.3390/nano14221856.
Flexible energy storage devices have attracted wide attention as a key technology restricting the vigorous development of wearable electronic products. However, the practical application of flexible batteries faces great challenges, including the lack of good mechanical toughness of battery component materials and excellent adhesion between components, resulting in battery performance degradation or failure when subjected to different types of deformation. It is imperative to develop flexible batteries that can withstand deformation under different conditions and maintain stable battery performance. This paper reviews the latest research progress of flexible lithium batteries, from the research and development of new flexible battery materials, advanced preparation processes, and typical flexible structure design. First, the types of key component materials and corresponding modification technologies for flexible batteries are emphasized, mainly including carbon-based materials with flexibility, lithium anode materials, and solid-state electrolyte materials. In addition, the application of typical flexible structural designs (buckling, spiral, and origami) in flexible batteries is clarified, such as 3D printing and electrospinning, as well as advanced fabrication techniques commonly used in flexible materials and battery components. Finally, the limitations and coping strategies in the practical application of flexible lithium batteries are discussed, which provides new ideas for future research.
柔性储能器件作为制约可穿戴电子产品蓬勃发展的一项关键技术，已引起广泛关注。然而，柔性电池的实际应用面临巨大挑战，包括电池组件材料缺乏良好的机械韧性以及组件之间缺乏优异的附着力，导致电池在受到不同类型变形时性能下降或失效。开发能够在不同条件下承受变形并保持稳定电池性能的柔性电池势在必行。本文综述了柔性锂电池的最新研究进展，涵盖新型柔性电池材料的研发、先进制备工艺以及典型的柔性结构设计。首先，着重介绍了柔性电池关键组件材料的类型及相应改性技术，主要包括具有柔性的碳基材料、锂负极材料和固态电解质材料。此外，阐明了典型柔性结构设计（屈曲、螺旋和折纸）在柔性电池中的应用，如3D打印和静电纺丝，以及柔性材料和电池组件常用的先进制造技术。最后，讨论了柔性锂电池实际应用中的局限性及应对策略，为未来研究提供了新思路。
