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March 21, 2026Open Access

A Modified Ceramic-Coating Separator with High-Temperature Stability for Lithium-Ion Battery

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Authors

CSChuan ShiJDJianhui DaiCLChao (Conductor) Li

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Overview

This work demonstrates improved thermal stability and performance in lithium-ion batteries using a modified ceramic coating separator.

Key Points

  • The aim is to enhance the thermal stability and electrolyte interaction of a ceramic coating separator for lithium-ion batteries.
  • Modified a polyethylene separator using Al₂O₃ particles, CMC, and SBR binders.
  • Coated the separator with a polydopamine layer via chemical deposition.
  • Evaluated thermal stability, ionic conductance, and electrochemical performance.
  • CCS-CS-PDA showed no thermal shrinkage at 200 °C for 30 min.
  • Significantly improved electrolyte uptake and wettability compared to the PE separator.
  • CCS-CS-PDA exhibited high ionic conductance when saturated with electrolyte.
  • Shutdown temperature of CCS-CS-PDA exceeded 200 °C, indicating better thermal performance.

Cite This Study

Shi et al. (2017) studied this question.

synapsesocial.com/papers/69be38ee6e48c4981c679a24https://doi.org/10.3390/polym9050159">https://doi.org/10.3390/polym9050159</a></p
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