Electrochemical performance of a solvent-free hybrid ceramic-polymer electrolyte based on Li7La3Zr2O12 in P(EO)15LiTFSI

TitleElectrochemical performance of a solvent-free hybrid ceramic-polymer electrolyte based on Li7La3Zr2O12 in P(EO)15LiTFSI
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2017
AuthorsKeller, M., Appetecchi Giovanni Battista, Kim G.-T., Sharova V., Schneider M., Schuhmacher J., Roters A., and Passerini S.
JournalJournal of Power Sources
Volume353
Pagination287-297
ISSN03787753
KeywordsCeramic electrolytes, Ceramic materials, Ceramic-polymer systems, Charge transfer, Electrochemical investigations, Electrochemical performance, Electrolytes, Hybrid electrolytes, Lithium, Lithium metal anode, Polyelectrolytes, Polymer electrolyte, Polymers, Solid electrolytes, Solvent-free procedures
Abstract

The preparation of hybrid ceramic-polymer electrolytes, consisting of 70 wt% of Li+ cation conducting Li7La3Zr2O12 (LLZO) and 30 wt% of P(EO)15LiTFSI polymer electrolyte, through a solvent-free procedure is reported. The LLZO-P(EO)15LiTFSI hybrid electrolytes exhibit remarkable improvement in terms of flexibility and processability with respect to pure LLZO ceramic electrolytes. The physicochemical and electrochemical investigation shows the effect of LLZO annealing, resulting in ion conduction gain. However, slow charge transfer at the ceramic-polymer interface is also observed especially at higher temperatures. Nevertheless, improved compatibility with lithium metal anodes and good Li stripping/plating behavior are exhibited by the LLZO-P(EO)15LiTFSI hybrid electrolytes with respect to P(EO)15LiTFSI. © 2017 Elsevier B.V.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85017308076&doi=10.1016%2fj.jpowsour.2017.04.014&partnerID=40&md5=e9a2b724d448eb50bb46bffb1163d7ff
DOI10.1016/j.jpowsour.2017.04.014