A Flexible Ceramic/Polymer Hybrid Solid Electrolyte for Solid‐State Lithium Metal Batteries. Issue 17 (16th March 2020)

• Record Type: Journal Article
• Authors: Pan, Kecheng; Zhang, Lan; Qian, Weiwei; Wu, Xiangkun; Dong, Kun; Zhang, Haitao; Zhang, Suojiang
• Is Part Of: Advanced materials. Volume 32:Issue 17(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-03-16
• Subjects: in situ coupling -- lithium metal batteries -- organic/inorganic hybrids -- solid electrolytes -- space charge layer; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202000399
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: Ceramic/polymer hybrid solid electrolytes (HSEs) have attracted worldwide attentions because they can overcome defects by combining the advantages of ceramic electrolytes (CEs) and solid polymer electrolytes (SPEs). However, the interface compatibility of CEs and SPEs in HSE limits their full function to a great extent. Herein, a flexible ceramic/polymer HSE is prepared via in situ coupling reaction. Ceramic and polymer are closely combined by strong chemical bonds, thus the problem of interface compatibility is resolved and the ions can transport rapidly by an expressway. The as‐prepared membrane demonstrates an ionic conductivity of 9.83 × 10 −4 S cm −1 at room temperature and a high Li + transference numbers of 0.68. This in situ coupling reaction method provides an effective way to resolve the problem of interface compatibility. Abstract : A flexible ceramic/polymer hybrid solid electrolyte is designed and fabricated with (3‐chloropropyl)trimethoxysilane as a bridge builder. Benefiting from the enhanced interfacial compatibility, the HSE shows high conductivity, good stability on air exposure, as well as high Li + transference number. Meanwhile, it demonstrates stable plating/stripping cycles in a symmetric Li cell for more than 7000 h.