Premium
Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery
Author(s) -
Ge Zhen,
Liu Xiaoli,
Zou Xiaobin,
Zhan Yu,
Luo Yunjun
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50945
Subject(s) - polyurethane , ionic conductivity , electrolyte , lithium (medication) , materials science , ionic liquid , polymer , lithium battery , chemical engineering , conductivity , polymer chemistry , ionic bonding , chemistry , ion , composite material , organic chemistry , electrode , medicine , engineering , endocrinology , catalysis
Solid polymer electrolyte (SPE)‐based lithium batteries have easy processing and safety for energy vehicles and storage. However, the preparation process of SPEs mostly used a lot of organic solvents, which will threaten human living space and body health. Herein, a novel green solid polymer electrolyte (ionic liquid type waterborne polyurethane, IWPUS) without no organic solvents was prepared from hybrids of ionic liquid‐based waterborne polyurethane (IWPU) and LiClO 4 . The structure and properties of IWPUS were investigated by IR, SEM, XRD, TGA, ion conductivity test. The results showed that Li + of LiClO 4 could coordinate with CO and COC in the polyurethane matrix. LiClO 4 had been well dispersed in IWPU. The conductivity of IWPUS increased with the increase of LiClO 4 content. The higher conductivity of IWPUS with 20% LiClO 4 at 80°C was 1.8 × 10 −4 s•cm −1 . IWPUS based on ionic liquid‐based waterborne polyurethane would be promised to become an environmentally friendly candidate for all solid‐state lithium ion batteries.