Ionics

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The lithium-ion-conducting ceramic composite based on LiTi2(PO4)3 with addition of LiF

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Abstract

The ceramic composites formed in the system LiTi2(PO4)3–LiF were studied by means of X-ray diffractometry, thermogravimetry, scanning electron microscopy, impedance spectroscopy, and density methods. Introduction of the foreign phase into the polycrystalline LiTi2(PO4)3-based material resulted in significant reduction of grain boundary resistance. However, a slight decrease of the conductivity could be observed when higher contents of lithium fluoride additive were present in the composite. The maximum total conductivity of ca. 3.08 × 10−5 S cm−1 was obtained for lithium titanium phosphate (LTP)–0.1LiF sample sintered at 1073 K in comparison to 5.15 × 10−8 S cm−1 for the pure ceramic LTP. The most dense material was obtained after sintering at 1073 K.

Keywords

Solid electrolyte Impedance spectroscopy Grain boundary conductivity enhancement Composite Ceramic 

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Faculty of PhysicsWarsaw University of TechnologyWarsawPoland

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