A Flexible Ceramic/Polymer Hybrid Solid Electrolyte for Solid-State Lithium Metal Batteries

Kecheng Pan; Lan Zhang; Weiwei Qian; Xiangkun Wu; Kun Dong; Haitao Zhang; Suojiang Zhang

doi:10.1002/adma.202000399

A Flexible Ceramic/Polymer Hybrid Solid Electrolyte for Solid-State Lithium Metal Batteries

Adv Mater. 2020 Apr;32(17):e2000399. doi: 10.1002/adma.202000399. Epub 2020 Mar 16.

Authors

Kecheng Pan¹, Lan Zhang², Weiwei Qian², Xiangkun Wu², Kun Dong², Haitao Zhang², Suojiang Zhang²

Affiliations

¹ School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
² CAS Key Laboratory of Green Process and Engineering, Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.

PMID: 32173931
DOI: 10.1002/adma.202000399

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.

Keywords: in situ coupling; lithium metal batteries; organic/inorganic hybrids; solid electrolytes; space charge layer.

Abstract

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