Roll-to-Roll Scalable Manufacturing of Nanoporous Separators for High-Safety Lithium-Ion Batteries

ACS Nano 2026

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Authors: Yongchao Yu, Zekun Cheng, Zhongyin Tian, K Zhang, Xianchen Liu, Bin Chen, Yiwen Zhao, Peng Liu, Xiao-Guang Yang, Wei‐Li Song, Peng Du, Kai Huang
+2 more Hui Wu, Lei Li
DOI: 10.1021/acsnano.6c00772
Cited by: 3
References: 66

Abstract

The separator plays an essential role in the electrochemical and safety performance of lithium-ion batteries (LIBs). However, commercial polyolefin separators face challenges such as poor thermal resistance, unsatisfactory electrolyte wettability, and interfacial instability. Herein, we propose a scalable method to fabricate a nanoporous poly(m-phenylene isophthalamide) (PMIA)-modified polyethylene (PE) separator (PMIA@PE) using a nonsolvent and evaporation-induced phase separation technique. Life cycle assessment indicates that this method significantly reduces water consumption during production and has a lower environmental impact compared with the conventional wet method. The separator exhibits superior thermal stability, with shrinkage

Fields of Study & Subjects

Nanoporous metals and alloys Advancements in Battery Materials Extraction and Separation Processes

Publication details

Journal / source
ACS Nano
Publisher
American Chemical Society (ACS)
Volume
20
Issue
17
Pages
13042–13054
Publication date
21 April 2026
Language
EN