Thermoresponsive microcapsules for autonomic lithium-ion battery shutdown

M. Baginska, B. J. Blaiszik, S. A. Odom, A. E. Esser-Kahn, M. M. Caruso, J. S. Moore, N. R. Sottos, S. R. White

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Lithium-ion batteries are commonly used in consumer electronics applications such as cellular phones and computers. However, there are safety concerns, such as external heating, over-charging, high current charging, or physical damage, which prevent their full market acceptance. Autonomic shutdown of lithium-ion batteries, through functionalization of battery electrodes with thermoresponsive microcapsules, is proposed as a fail-safe mechanism. The proposed concept relies on monomer-filled microcapsules that can be triggered to rupture within a desired temperature range and deliver an electrically isolating core to the electrode surface to shut down the battery cell. Preparation of thermoresponsive microcapsules that can be triggered to rupture using a low-boiling point solvent and deliver a thermally polymerizable core is described. Add tionally, we demonstrate that the rupture temperature can be controlled by appropriate selection of microencapsulated trigger solvents. Initial work on the coating of battery materials with thermoresponsive spheres is also described.

Original languageEnglish (US)
Title of host publicationExperimental Mechanics on Emerging Energy Systems and Materials - Proceedings of the 2010 Annual Conference on Experimental and Applied Mechanics
Number of pages7
ISBN (Print)9781441994936
StatePublished - 2011

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652


  • Autonomic
  • Emulsion polymerization
  • Lithium-ion batteries
  • Microcapsules
  • Thermoresponsive

ASJC Scopus subject areas

  • General Engineering
  • Computational Mechanics
  • Mechanical Engineering


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