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Title: Core–Shell Microcapsules Containing Flame Retardant Tris(2-chloroethyl phosphate) for Lithium-Ion Battery Applications

Abstract

Flame retardant tris(2-chloroethyl phosphate) (TCP) is successfully encapsulated in core–shell poly(urea-formaldehyde) microcapsules by in situ polymerization. The microcapsules are electrochemically stable in lithium-ion (Li-ion) battery electrolytes and thermally stable to ca. 200 °C. Thermal triggering of these microcapsules at higher temperatures ruptures the shell wall, releasing the liquid core (flame retardant), and NMR spectroscopy confirms the presence of the flame retardant in the electrolyte solution. Li-ion pouch cell experiments demonstrate that microencapsulation of TCP and its incorporation into the battery electrolyte provide latent fire retardants that improve battery safety while maintaining inherent battery performance and cycling capability.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Aerospace Engineering, and Beckman Inst. for Advanced Science and Technology
  2. Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering, and Beckman Inst. for Advanced Science and Technology
Publication Date:
Research Org.:
Univ. of Illinois, Urbana-Champaign, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1419828
Alternate Identifier(s):
OSTI ID: 1508751
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Published Article
Journal Name:
ACS Omega
Additional Journal Information:
Journal Volume: 3; Journal Issue: 2; Journal ID: ISSN 2470-1343
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Baginska, Marta, Sottos, Nancy R., and White, Scott R.. Core–Shell Microcapsules Containing Flame Retardant Tris(2-chloroethyl phosphate) for Lithium-Ion Battery Applications. United States: N. p., 2018. Web. doi:10.1021/acsomega.7b01950.
Baginska, Marta, Sottos, Nancy R., & White, Scott R.. Core–Shell Microcapsules Containing Flame Retardant Tris(2-chloroethyl phosphate) for Lithium-Ion Battery Applications. United States. doi:10.1021/acsomega.7b01950.
Baginska, Marta, Sottos, Nancy R., and White, Scott R.. Wed . "Core–Shell Microcapsules Containing Flame Retardant Tris(2-chloroethyl phosphate) for Lithium-Ion Battery Applications". United States. doi:10.1021/acsomega.7b01950.
@article{osti_1419828,
title = {Core–Shell Microcapsules Containing Flame Retardant Tris(2-chloroethyl phosphate) for Lithium-Ion Battery Applications},
author = {Baginska, Marta and Sottos, Nancy R. and White, Scott R.},
abstractNote = {Flame retardant tris(2-chloroethyl phosphate) (TCP) is successfully encapsulated in core–shell poly(urea-formaldehyde) microcapsules by in situ polymerization. The microcapsules are electrochemically stable in lithium-ion (Li-ion) battery electrolytes and thermally stable to ca. 200 °C. Thermal triggering of these microcapsules at higher temperatures ruptures the shell wall, releasing the liquid core (flame retardant), and NMR spectroscopy confirms the presence of the flame retardant in the electrolyte solution. Li-ion pouch cell experiments demonstrate that microencapsulation of TCP and its incorporation into the battery electrolyte provide latent fire retardants that improve battery safety while maintaining inherent battery performance and cycling capability.},
doi = {10.1021/acsomega.7b01950},
journal = {ACS Omega},
issn = {2470-1343},
number = 2,
volume = 3,
place = {United States},
year = {2018},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1021/acsomega.7b01950

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

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