Zhu Sheng, Sheng Jian, Chen Yuan, Ni Jiangfeng, Li Yan
Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, Australia.
Natl Sci Rev. 2020 Oct 20;8(5):nwaa261. doi: 10.1093/nsr/nwaa261. eCollection 2021 May.
Flexible batteries, which maintain their functions potently under various mechanical deformations, attract increasing interest due to potential applications in emerging portable and wearable electronics. Significant efforts have been devoted to material synthesis and structural designs to realize the mechanical flexibility of various batteries. Carbon nanotubes (CNTs) have a unique one-dimensional (1D) nanostructure and are convenient to further assemble into diverse macroscopic structures, such as 1D fibers, 2D films and 3D sponges/aerogels. Due to their outstanding mechanical and electrical properties, CNTs and CNT-based hybrid materials are superior building blocks for different components in flexible batteries. This review summarizes recent progress on the application of CNTs in developing flexible batteries, from closed-system to open-system batteries, with a focus on different structural designs of CNT-based material systems and their roles in various batteries. We also provide perspectives on the challenges and future research directions for realizing practical applications of CNT-based flexible batteries.
柔性电池在各种机械变形下仍能有效保持其功能，因其在新兴便携式和可穿戴电子产品中的潜在应用而吸引了越来越多的关注。人们已经在材料合成和结构设计方面做出了巨大努力，以实现各种电池的机械柔性。碳纳米管（CNTs）具有独特的一维（1D）纳米结构，便于进一步组装成各种宏观结构，如1D纤维、2D薄膜和3D海绵/气凝胶。由于其优异的机械和电学性能，碳纳米管及基于碳纳米管的混合材料是柔性电池中不同组件的优质构建材料。本文综述了碳纳米管在开发柔性电池方面的最新进展，从封闭系统电池到开放系统电池，重点关注基于碳纳米管的材料系统的不同结构设计及其在各种电池中的作用。我们还对实现基于碳纳米管的柔性电池实际应用面临的挑战和未来研究方向提出了展望。
