Zhou Yang, Wang Chun-Hui, Lu Wen, Dai Liming
Faculty of Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
Institute of Energy Storage Technologies, Yunnan University, Yunnan, Kunming, 650091, China.
Adv Mater. 2020 Feb;32(5):e1902779. doi: 10.1002/adma.201902779. Epub 2019 Sep 9.
The rapid development in wearable electronics has spurred a great deal of interest in flexible energy storage devices, particularly fiber-shaped energy storage devices (FSESDs), such as fiber-shaped supercapacitors (FSSCs) and fiber-shaped batteries (FSBs). Depending on their electrode configurations, FSESDs can contain five differently structured electrodes, including parallel fiber electrodes (PFEs), twisted fiber electrodes (TFDs), wrapped fiber electrodes (WFEs), coaxial fiber devices (CFEs), and rolled electrodes (REs). Various rational methods have been devised to incorporate these fiber-shaped electrodes into multifunctional FSESDs, including fiber-shaped supercapacitors, lithium-ion batteries, lithium-sulfur batteries, lithium-air batteries, zinc-air batteries, and aluminum-air batteries. Although significant progress has been made in FSESDs, it remains a major challenge to make high-performance fiber-shaped devices at low cost. A focused and critical review of the recent advancements in fiber-shaped supercapacitors and lithium-ion batteries is provided here. The pros and cons for each of the aforementioned electrode configurations and FSESDs are discussed, along with current challenges and future opportunities for FSESDs.
可穿戴电子设备的迅速发展激发了人们对柔性储能设备的极大兴趣，尤其是纤维状储能设备（FSESD），例如纤维状超级电容器（FSSC）和纤维状电池（FSB）。根据其电极配置，FSESD可包含五种结构不同的电极，包括平行纤维电极（PFE）、扭曲纤维电极（TFD）、包裹纤维电极（WFE）、同轴纤维装置（CFE）和卷绕电极（RE）。人们已经设计出各种合理的方法将这些纤维状电极整合到多功能FSESD中，包括纤维状超级电容器、锂离子电池、锂硫电池、锂空气电池、锌空气电池和铝空气电池。尽管FSESD已经取得了重大进展，但以低成本制造高性能纤维状设备仍然是一项重大挑战。本文对纤维状超级电容器和锂离子电池的最新进展进行了重点和批判性综述。讨论了上述每种电极配置和FSESD的优缺点，以及FSESD当前面临的挑战和未来机遇。
