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Title: Reciprocated suppression of polymer crystallization toward improved solid polymer electrolytes: Higher ion conductivity and tunable mechanical properties

Journal Article · · Journal of Polymer Science. Part B, Polymer Physics (Online)
DOI:https://doi.org/10.1002/polb.23793· OSTI ID:1286853
 [1];  [2];  [3];  [4];  [2];  [5];  [1];  [2]
  1. Univ. of Alabama, Tuscaloosa, AL (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  4. Temple University, Philadelphia, Pennsylvania (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Pusan National Univ., Busan (Korea, Republic of)

Solid polymer electrolytes based on lithium bis(trifluoromethanesulfonyl) imide and polymer matrix were extensively studied in the past due to their excellent potential in a broad range of energy related applications. Poly(vinylidene fluoride) (PVDF) and polyethylene oxide (PEO) are among the most examined polymer candidates as solid polymer electrolyte matrix. In this paper, we study the effect of reciprocated suppression of polymer crystallization in PVDF/PEO binary matrix on ion transport and mechanical properties of the resultant solid polymer electrolytes. With electron and X-ray diffractions as well as energy filtered transmission electron microscopy, we identify and examine the appropriate blending composition that is responsible for the diminishment of both PVDF and PEO crystallites. Laslty, a three-fold conductivity enhancement is achieved along with a highly tunable elastic modulus ranging from 20 to 200 MPa, which is expected to contribute toward future designs of solid polymer electrolytes with high room-temperature ion conductivities and mechanical flexibility.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1286853
Journal Information:
Journal of Polymer Science. Part B, Polymer Physics (Online), Vol. 53, Issue 20; ISSN 1099-0488
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (5)

Comparison of Li + -ion conductivity in linear and crosslinked poly(ethylene oxide) journal October 2018
Spatially Probed Plasmonic Photothermic Nanoheater Enhanced Hybrid Polymeric-Metallic PVDF-Ag Nanogenerator journal December 2017
Synergistic effects of salt concentration and polymer blend composition on the crystal phases, dielectric relaxation, and ion conduction in PVDF/PEO/LiCF3SO3 solid polymer electrolytes journal December 2019
Influence of additives in a PVDF-based solid polymer electrolyte on conductivity and Li-ion battery performance journal January 2018
Recent progress in flexible non-lithium based rechargeable batteries journal January 2019