Open AccessLithium acetate modified PU/graphene composites as separator for advanced Li‐ion batteries
Author(s) -
Jiang Yong,
Lu Cai,
Liu Xing,
Jiang Yunhong,
Ding Yanhuai
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2019.0164
Subject(s) - separator (oil production) , graphene , polyolefin , materials science , polyurethane , thermal stability , composite number , composite material , electrochemistry , lithium (medication) , chemical engineering , nanotechnology , chemistry , electrode , medicine , physics , layer (electronics) , endocrinology , engineering , thermodynamics
Here lithium acetate modified PU/graphene composites were prepared from a simple electrospun method. The electrochemical properties, thermal stability, and mechanical properties of polyurethane (PU) separator have been improved remarkably by the addition of lithium acetate and graphene. The composite separator can maintain the dimension size even after being treated at 170°C for 1 h. High ionic conductivity of 2.47 mS·cm −1 can be reached. The results show that the as‐prepared lithium acetate modified PU/graphene separator is a promising candidate for commercial polyolefin separators.