Lithium Ion Batteries: Autonomic Shutdown of Lithium-Ion Batteries Using Thermoresponsive Microspheres (Adv. Energy Mater. 5/2012)

Authors

  • Marta Baginska,

    1. 306 Talbot Laboratory, Department of Aerospace Engineering, University of Illinois Urbana-Champaign, 104 S. Wright Street, Urbana, IL, 61801, USA
    2. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 405 N. Mathews Ave, Urbana, IL 61801, USA
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  • Benjamin J. Blaiszik,

    1. Department of Materials Science and Engineering, Materials Science and Engineering Building, University of Illinois Urbana-Champaign, 1304 W. Green St., Urbana, IL, 61801, USA
    2. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 405 N. Mathews Ave, Urbana, IL 61801, USA
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  • Ryan J. Merriman,

    1. 306 Talbot Laboratory, Department of Aerospace Engineering, University of Illinois Urbana-Champaign, 104 S. Wright Street, Urbana, IL, 61801, USA
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  • Nancy R. Sottos,

    1. Department of Materials Science and Engineering, Materials Science and Engineering Building, University of Illinois Urbana-Champaign, 1304 W. Green St., Urbana, IL, 61801, USA
    2. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 405 N. Mathews Ave, Urbana, IL 61801, USA
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  • Jeffrey S. Moore,

    1. Department of Chemistry, University of Illinois Urbana-Champaign, 505 South Mathews Avenue, Urbana, IL, 61801, USA
    2. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 405 N. Mathews Ave, Urbana, IL 61801, USA
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  • Scott R. White

    Corresponding author
    1. 306 Talbot Laboratory, Department of Aerospace Engineering, University of Illinois Urbana-Champaign, 104 S. Wright Street, Urbana, IL, 61801, USA
    2. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, 405 N. Mathews Ave, Urbana, IL 61801, USA
    • 306 Talbot Laboratory, Department of Aerospace Engineering, University of Illinois Urbana-Champaign, 104 S. Wright Street, Urbana, IL, 61801, USA.
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Abstract

original image

Poly(ethylene) microspheres are prepared by S. R. White and co-workers via a solvent evaporation technique and used to demonstrate autonomic shutdown of a Lithiumion battery operating unsafely. These ca. 4 μm diameter microspheres can be coated directly onto an electrode surface, as shown on page 583. When the internal battery environment reaches a critical temperature (110 °C), the microspheres melt and form a conformal coating on the electrode surface, effectively halting Li-ion transport and permanently shutting down the battery cell.

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