High‐Performance Lithium–Air Battery with a Coaxial‐Fiber Architecture. Issue 14 (1st March 2016)

• Record Type: Journal Article
• Authors: Zhang, Ye; Wang, Lie; Guo, Ziyang; Xu, Yifan; Wang, Yonggang; Peng, Huisheng
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 14(2016)
• Page Start: 4487
• Page End: 4491
• Publication Date: 2016-03-01
• Subjects: carbon nanotube -- flexible devices -- gel electrolyte -- lithium–air battery -- wearable devices; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201511832
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The lithium–air battery has been proposed as the next‐generation energy‐storage device with a much higher energy density compared with the conventional lithium‐ion battery. However, lithium–air batteries currently suffer enormous problems including parasitic reactions, low recyclability in air, degradation, and leakage of liquid electrolyte. Besides, they are designed into a rigid bulk structure that cannot meet the flexible requirement in the modern electronics. Herein, for the first time, a new family of fiber‐shaped lithium–air batteries with high electrochemical performances and flexibility has been developed. The battery exhibited a discharge capacity of 12 470 mAh g −1 and could stably work for 100 cycles in air; its electrochemical performances were well maintained under bending and after bending. It was also wearable and formed flexible power textiles for various electronic devices. Abstract : Bendy batteries : A flexible, fiber‐shaped lithium–air battery was developed from a gel polymer electrolyte and an aligned carbon nanotube sheet air electrode. It delivered a high specific capacity of 12 470 mAh g −1 and could work for 100 cycles in air. Its electrochemical performance was maintained during and after bending and it could be woven into textiles to power electronic devices.