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Structural, spectroscopic and electrochemical study of V5+ substituted LiTi2(PO4)3 solid electrolyte for lithium-ion batteries
A Venkateswara Rao V Veeraiah A V Prasada Rao B Kishore Babu B Swarna Latha K Rama Rao
Volume 37 Issue 4 June 2014 pp 883-888
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https://www.ias.ac.in/article/fulltext/boms/037/04/0883-0888 -
Keywords
Nasicon materials ;X-ray diffraction ;lithium titanium phosphate ;vanadium doped LiTi2(PO4)3. -
Abstract
Vanadium substituted LiTi2(PO4)3 (LTP) samples of composition of Li1–𝑥[Ti2–𝑥V𝑥](PO4)3 (𝑥 = 0.0, 0.05, 0.10 and 0.15) have been prepared by solid-state reaction method. XRD data for these compositions indicated the formation of phase pure materials of rhombohedral structure with space group 𝑅$\bar{3}$𝑐 (167). Microstructural studies by scanning electron microscope indicated particle size in the range of 0.5–1 𝜇m. Electrochemical impedance studies showed that ionic conductivity is high for 𝑥 = 0.10 composition. a.c. and d.c. conductivity results up to 573 K are in accordance with the Jonscher’s power law. Cyclic voltammetry study showed its electrochemical stability in the voltage range from 0.5 to 3.5 V.
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Author Affiliations
A Venkateswara Rao1 V Veeraiah1 A V Prasada Rao2 B Kishore Babu3 B Swarna Latha1 K Rama Rao1
- Department of Physics, Andhra University, Visakhapatnam 530 003, India
- Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam 530 003, India
- Department of Engineering Chemistry; Andhra University, Visakhapatnam 530 003, India
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Dates
- Published
- June 2014
- Manuscript received
- 30 April 2013
- Manuscript revised
- 23 September 2013
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