Rational Design of Crosslinked Polymeric Microsphere Coatings for Thermally Stable and Swelling‐Resistant Lithium‐Ion Battery Separators

Macromolecular Rapid Communications 2026

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Authors: Yi Zheng, Rui Zhao, Xuejiao Song, Yiming Cao, Liwei Dai, Changchuan Shi, Wuli Yang, Yutao Sang, Chengdong Sun, Wenhao Dong, Zhihong Nie
DOI: 10.1002/marc.202500926
Cited by: 1
References: 42

Abstract

ABSTRACT The lithium‐ion batteries increasingly require separators that combine high thermal stability, low swelling, and excellent electrolyte wettability, yet conventional ceramic coatings add weight and reduce porosity while acrylate‐based polymer coatings often lack heat resistance. Here, we report a rationally engineered class of highly crosslinked, monodisperse polymeric microspheres synthesized via emulsion polymerization of styrene (St), methyl methacrylate (MMA), acrylonitrile (AN), and dipentaerythritol hexaacrylate (DPHA). The synergistic monomer design confers controlled particle nucleation, high thermal robustness ( T 3 up to 370°C), and exceptional resistance to electrolyte swelling (

Fields of Study & Subjects

Advanced Battery Materials and Technologies Extraction and Separation Processes Advancements in Battery Materials

Publication details

Journal / source
Macromolecular Rapid Communications
Publisher
Wiley
Volume
47
Issue
6
Pages
e00926–e00926
Publication date
21 January 2026
Language
EN