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Front. Chem. | doi: 10.3389/fchem.2019.00522

Review on Polymer-Based Composite Electrolytes for lithium batteries

Penghui Yao1, Haobin Yu1, Zhiyu Ding1, Yanchen Liu1, Juan Lu1,  Marino Lavorgna2,  Junwei Wu1* and Xingjun Liu1
  • 1Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, China
  • 2Institute of Polymers, Composite and Biomaterials, Italian National Research Counci, Italy

Lithium-ion batteries have been made on a fantastically wide range of applications. However, current commercial lithium-ion batteries extensively use low-boiling point organic liquid electrolytes, which are prone to leakage, burning and even explosions. Solid electrolyte offers one options to solve the issues. Among all solid electrolytes, polymer based solid electrolytes have the advantages of low flammability, good flexibility, excellent thermal stability, and high safety. A large amount of research work had been devoted to the realization of high performance solid polymer based lithium batteries. However, low Li-ion conductivity and poor mechanical properties still hinder the commercial applications. In order to tackle the issues and improve the overall performance, composite with foreign particles are currently widely investigated to form a polymer-based composite electrolyte. This review discusses the current developments on polymer-based composite lithium ions solid electrolytes. In particular, the structures, ionic conductivities and fabrications of solid polymer electrolytes are summarized, as well as electrochemical/chemical stabilities. And perspectives on future developments of solid polymer electrolytes are provided for future lithium ion batteries.

Keywords: Polymer solid electrolytes, Lithium-ion batteries (LIBs), Li-ion conductivity, composite, polymer

Received: 29 Jan 2019; Accepted: 08 Jul 2019.

Edited by:

Pellegrino Musto, Italian National Research Council (CNR), Italy

Reviewed by:

Giuseppe Scherillo, University of Naples Federico II, Italy
Helinando P. De Oliveira, Universidade Federal do Vale do São Francisco, Brazil  

Copyright: © 2019 Yao, Yu, Ding, Liu, Lu, Lavorgna, Wu and Liu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Prof. Junwei Wu, Harbin Institute of Technology, Shenzhen, Shenzhen Key Laboratory of Advanced Materials, Department of Materials Science and Engineering, Shenzhen, Guangdong, China,