Integrating photovoltaic conversion and lithium ion storage into a flexible fiber

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 4; no. 20; pp. 7601 - 7605
• Main Authors: Sun, Hao, Jiang, Yishu, Xie, Songlin, Zhang, Ye, Ren, Jing, Ali, Abid, Doo, Seok-Gwang, Son, In Hyuk, Huang, Xianliang, Peng, Huisheng
• Format: Journal Article
• Language: English
• Published: 01.01.2016
• Subjects: Devices; Direct power generation; Electric potential; Energy storage; Fibers; Ion storage; Lithium; Voltage
• ISSN: 2050-7488; 2050-7496
• DOI: 10.1039/c6ta01514j

Flexible electronics has witnessed the rapid advancement of fiber-shaped energy devices, particularly fiber-shaped integrated devices that simultaneously realize energy conversion and storage in a single fiber. However, it remains challenging to produce integrated energy fibers with enhanced energy storage capacities and output voltages, and meanwhile retain the high flexibility and integration. Here, we demonstrate a novel family of integrated energy devices by integrating photoelectric conversion and lithium ion storage into a flexible fiber. The fiber-shaped integrated energy device exhibits a core-sheath structure with the photoelectric conversion part at the sheath and the lithium ion storage part at the core. It simultaneously displays a high energy storage capacity and output voltage. The integrated energy fibers are lightweight, flexible and weavable, and represent promising candidates to power the next-generation portable and wearable electronic devices. The results presented here could provide inspiration for the development of high-performance integrated devices.