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Title: A three-dimensional interconnected polymer/ceramic composite as a thin film solid electrolyte

Abstract

In this work we introduce an approach to fabricate a solid composite electrolyte film that is thin, ionically conductive, and mechanically robust with good potential for manufacturability, in the application of lithium metal batteries. First a doped-lithium aluminum titanium phosphate ceramic thin film with thickness of ~25 ​μm is formed by aqueous spray coating, a scalable process. The film is partially sintered to form a three-dimensionally interconnected structure with a dense backbone. It is then backfilled with a crosslinkable poly(ethylene oxide) (PEO)-based polymer electrolyte. We report the composite has very high ceramic loading of 77 ​wt% (61 ​vol%) and an ionic conductivity of 3.5 ​× ​10-5 ​S/cm at 20 ​°C with an activation energy of 0.43 ​eV. The main ion transport pathway is through the ceramic network, predicted by modelling and verified by experiments. Owing to the interconnected structure of the ceramic, the composite electrolyte exhibits much improved mechanical strength.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Vanderbilt Univ., Nashville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF); USDOE Office of Science (SC)
OSTI Identifier:
1606797
Alternate Identifier(s):
OSTI ID: 1597553
Grant/Contract Number:  
AC05-00OR22725; 1847029; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Energy Storage Materials
Additional Journal Information:
Journal Volume: 26; Journal Issue: C; Journal ID: ISSN 2405-8297
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Composite electrolyte; Spray coating; Ionic conductivity; Solid state electrolyte; Lithium battery

Citation Formats

Palmer, Max J., Kalnaus, Sergiy, Dixit, Marm B., Westover, Andrew S., Hatzell, Kelsey B., Dudney, Nancy J., and Chen, Xi Chelsea. A three-dimensional interconnected polymer/ceramic composite as a thin film solid electrolyte. United States: N. p., 2019. Web. https://doi.org/10.1016/j.ensm.2019.12.031.
Palmer, Max J., Kalnaus, Sergiy, Dixit, Marm B., Westover, Andrew S., Hatzell, Kelsey B., Dudney, Nancy J., & Chen, Xi Chelsea. A three-dimensional interconnected polymer/ceramic composite as a thin film solid electrolyte. United States. https://doi.org/10.1016/j.ensm.2019.12.031
Palmer, Max J., Kalnaus, Sergiy, Dixit, Marm B., Westover, Andrew S., Hatzell, Kelsey B., Dudney, Nancy J., and Chen, Xi Chelsea. Sat . "A three-dimensional interconnected polymer/ceramic composite as a thin film solid electrolyte". United States. https://doi.org/10.1016/j.ensm.2019.12.031. https://www.osti.gov/servlets/purl/1606797.
@article{osti_1606797,
title = {A three-dimensional interconnected polymer/ceramic composite as a thin film solid electrolyte},
author = {Palmer, Max J. and Kalnaus, Sergiy and Dixit, Marm B. and Westover, Andrew S. and Hatzell, Kelsey B. and Dudney, Nancy J. and Chen, Xi Chelsea},
abstractNote = {In this work we introduce an approach to fabricate a solid composite electrolyte film that is thin, ionically conductive, and mechanically robust with good potential for manufacturability, in the application of lithium metal batteries. First a doped-lithium aluminum titanium phosphate ceramic thin film with thickness of ~25 ​μm is formed by aqueous spray coating, a scalable process. The film is partially sintered to form a three-dimensionally interconnected structure with a dense backbone. It is then backfilled with a crosslinkable poly(ethylene oxide) (PEO)-based polymer electrolyte. We report the composite has very high ceramic loading of 77 ​wt% (61 ​vol%) and an ionic conductivity of 3.5 ​× ​10-5 ​S/cm at 20 ​°C with an activation energy of 0.43 ​eV. The main ion transport pathway is through the ceramic network, predicted by modelling and verified by experiments. Owing to the interconnected structure of the ceramic, the composite electrolyte exhibits much improved mechanical strength.},
doi = {10.1016/j.ensm.2019.12.031},
journal = {Energy Storage Materials},
number = C,
volume = 26,
place = {United States},
year = {2019},
month = {12}
}

Journal Article:

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Cited by: 3 works
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