用于高导电性和稳定聚合物电解质的双交联聚氨酯丙烯酸酯

Double-Crosslinked Polyurethane Acrylate for Highly Conductive and Stable Polymer Electrolyte.

作者信息

Kim Han-Na, Kim Kyung-Geun, Jeong Yeon Uk, Kim Sung Yeol

机构信息

School of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea.

School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Korea.

出版信息

Polymers (Basel). 2020 Oct 31;12(11):2557. doi: 10.3390/polym12112557.

DOI:10.3390/polym12112557

PMID:33142743

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7693480/

Abstract

High ionic conductivity and good stability are major factors that influence the use of polymer electrolytes in electrochemical storage and conversion devices. In this study, we present polyurethane acrylate (PUA) membranes having enhanced ionic conductivity and swelling stability by double crosslinking the polyurethane (PU) and polyacrylate (PA) compartments. The crosslinking agent concentration was varied to control their mechanical properties, swelling stability, and ionic conductivity. Under optimum conditions, the electrolyte uptake of the double-crosslinked PUA membranes without notable defects was 245%. The maximum ionic conductivity of these membranes reached 9.6 mS/cm, which was higher than those with respect to most of the previously reported PUA- or PU-based polymer electrolytes.

摘要

高离子电导率和良好的稳定性是影响聚合物电解质在电化学存储和转换装置中应用的主要因素。在本研究中，我们通过对聚氨酯（PU）和聚丙烯酸酯（PA）隔室进行双重交联，制备了具有增强离子电导率和溶胀稳定性的聚氨酯丙烯酸酯（PUA）膜。通过改变交联剂浓度来控制其机械性能、溶胀稳定性和离子电导率。在最佳条件下，无明显缺陷的双重交联PUA膜的电解质吸收率为245%。这些膜的最大离子电导率达到9.6 mS/cm，高于大多数先前报道的基于PUA或PU的聚合物电解质。