An Ion‐Dipole‐Reinforced Polyether Electrolyte with Ion‐Solvation Cages Enabling High–Voltage‐Tolerant and Ion‐Conductive Solid‐State Lithium Metal Batteries (Adv. Funct. Mater. 5/2022). (25th January 2022)

• Record Type: Journal Article
• Authors: Zhang, Kun; Wu, Feng; Wang, Xinran; Zheng, Lumin; Yang, Xiaoyu; Zhao, Huichun; Sun, Yuheng; Zhao, Wenbin; Bai, Ying; Wu, Chuan
• Is Part Of: Advanced functional materials. Volume 32:Number 5(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-25
• Subjects: lithium dendrites -- lithium metal anodes -- polymer electrolytes -- solid‐state batteries; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202270031
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract : High‐Performance Polymer Electrolytes In article number 2107764, Xinran Wang, Ying Bai, Chuan Wu, and co‐workers develop a hyperbranched polyether electrolyte for solid‐state Li metal batteries. The existing ion‐solvation structures allow for fast Li + migration (1.26 × 10 −4 S cm −1, 25 °C), a wide stable voltage window (up to 4.6 V), and Li dendrite suppression, overcoming the insufficiencies encountered by polymer electrolytes. The ion‐dipole‐reinforced solid electrolyte yields sustainable Li stripping/platting and interfacial stability, thus enabling high cycle stability and capacity retention in NCM811 |Li solid‐state cells.