基于CNT的柔性自支撑锌空气电池正极研究进展

Research progress in flexible zinc-air battery cathode based on carbon nanotube materials

随着可穿戴智能设备的不断发展,柔性锌空气电池(FZAB)作为新一代极具应用前景的储能系统受到了广泛关注,但其二次电池的实际应用仍处于起步阶段.如何优化其柔性结构并提高电池性能是目前研究的关键与重点.碳纳米管作为新一代超级纳米材料,具有优异的导电性、柔韧性、质轻等特点,为柔性锌空气电池的发展提供了新的方向和选择.为了探究碳纳米管纤维材料在自支撑锌空气正极中的潜在应用,本文从碳纳米管的合成方法与构效关系入手,通过阐述锌空气电池的电化学工作机理与柔性化设计,总结了碳纳米管在FZAB应用中所发挥的不同作用,综述了近些年来基于碳纳米管的柔性自支撑空气正极的研究进展,讨论了目前碳纳米管与自支撑空气正极发展所面临的问题,并对未来进行了展望.旨在为纺织、纤维、材料及电子等领域的相关从业者进行柔性锌空气电池(FZAB)的研究与开发提供一定的参考与指导.

As a promising technology for portable electronics,secondary flexible zinc-air batteries have received immense attention in the past decade,particularly for the design and research of the air electrode.Herein,we focused on the most recent developments of the selfsupporting air electrode based on carbon nanotube(CNT)materials.We first summarized the synthetic and fabrication methods of CNT and its structure-activity relationship.Section 2 describes the working mechanism and flexible design of the battery.Further,a detailed discussion of the recent advancements in flexible self-supporting air-positive electrodes based on CNTs is provided.As a new development,flexible zinc-air batteries are also discussed separately.Finally,conclusions are presented,followed by a future perspective on fiber-shaped CNT self-supporting air cathode.