文章信息/Info

Title:

Progress on The Composite Solid Polymer Electrolytes

文章編號:

1674-3962(2020)03-0191-09

作者:

彭翔; 黃楷; 孫志杰; 向勇; 張曉琨

（電子科技大學材料與能源學院，四川 成都 611731）

Author(s):

PENG Xiang;  HUANG Kai;  SUN Zhijie;  XIANG Yong;  ZHANG Xiaokun

(School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China)

關鍵詞:

聚合物復合固體電解質; 離子電導率; 聚合物�蔡沾呻s化界面; 離子傳導機制; 先進表征方法

Keywords:

composite solid polymer electrolytes;  ionic conductivity;  ionic conduction mechanism;  advanced characterization

分類號:

TM912;TB33

DOI:

10.7502/j.issn.1674-3962.201912026

文獻標志碼:

A

摘要:

固體電解質是發展高安全、高能量密度全固態鋰電池的重要材料基礎。由聚合物相與無機相復合形成的聚合物復合固體電解質，兼具聚合物輕質、柔性，以及無機材料高強度、高穩定性等優勢，是最具應用潛力的固體電解質材料。目前，制約聚合物復合固體電解質實際應用的主要瓶頸問題為其室溫離子電導率較低。綜述了目前關于聚合物復合固體電解質離子傳導機制的科學認識以及提升其離子電導率的方法，分析了先進表征工具在揭示聚合物復合固體電解質離子傳導機制方面的應用潛力，并展望了聚合物復合固體電解質未來的發展方向和工作重點。

Abstract:

Solid-state electrolytes are the materials basis for the development of all-solid-state lithium batteries with excellent safety and high energy density. Composite solid polymer electrolytes, comprised of polymer matrix and inorganic fillers, hold the greatest promising among all solid-state electrolytes, thanks to the light weight and flexibility of polymer matrix and the good mechanical strength and high stability of inorganic fillers. However, the low ionic conductivity at room temperature impedes the practical application of composite solid polymer electrolytes. This paper reviews the fundamentals and promotion strategies of the ionic conduction in composite solid polymer electrolytes. The potential role for advanced characterization tools in further investigating the mechanism of ionic conduction is emphasized. The future trends and key points of the development of composite solid polymer electrolytes are also proposed.