An ultrathin robust polymer membrane for wearable solid-state electrochemical energy storage. (October 2020)

• Record Type: Journal Article
• Authors: Chu, Xiang; Zhao, Xun; Zhou, Yihao; Wang, Yihan; Han, Xueling; Zhou, Yilin; Ma, Jingxin; Wang, Zixing; Huang, Haichao; Xu, Zhong; Yan, Cheng; Zhang, Haitao; Yang, Weiqing; Chen, Jun
• Is Part Of: Nano energy. Volume 76(2020)
• Publication Date: 2020-10
• Subjects: Wearable bioelectronics -- Solid-state -- Electrochemical energy storage -- Pervasive energy solution -- Personalized healthcare; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2020.105179
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Developing lightweight, flexible, and foldable electrodes with decent mechanical durability and electrochemical activity is a highly desirable goal for solid-state electrochemical energy storage devices yet remains a formidable challenge to overcome. Herein, we invent a freestanding robust PANI membrane via introducing the dynamic boronate bond to bridge rigid PANI chains with complaint polyvinyl alcohol (PVA) chains. The resultant PANI/PVA membrane (PPM) exhibits remarkable elasticity (17.8% strain) along with excellent tensile strength (33.7 MPa), outperforming the majority of existing state-of-the-art flexible electrochemical PANI membranes. Additionally, the PPM can be further assembled into a wearable solid-state supercapacitor with high electrochemical performance as well as decent mechanical durability. The lightweight, flexible, and foldable PANI membrane represents a great advancement in electrode materials for next-generation wearable solid-state electrochemical energy storage devices. Graphical abstract: Image 1 Highlights: Freestanding, foldable, large-areal and robust polyaniline membrane with high electrochemical performance is constructed. Rigid PANI chains and complaint PVA chains are crosslinked by boronate bond. This membrane exhibits large break strength of 33.7 MPa and 17.8% elongation. Solid-state supercapacitors deliver remarkable energy density of 1.91 mWh cm −3 .