### Spectroscopic and Electrochemical Properties of Lithium-Rich LiFePO$_{4}$ Cathode Synthesized by Solid-State ReactionSpectroscopic and Electrochemical Properties of Lithium-Rich LiFePO$_{4}$ Cathode Synthesized by Solid-State Reaction

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 Author Rosaiah, P. ♦ Hussain, O. M. ♦ Zhu, Jinghui ♦ Qiu, Yejun Source SpringerLink Content type Text Publisher Springer US File Format PDF Copyright Year ©2017 Language English
 Subject Keyword Li ion batteries ♦ LiFePO$_{4}$ ♦ microstructure ♦ electrical and electrochemical properties ♦ Optical and Electronic Materials ♦ Characterization and Evaluation of Materials ♦ Electronics and Microelectronics, Instrumentation ♦ Solid State Physics Abstract Lithium iron phosphate (Li$_{ x }$FePO$_{4}$) is synthesized by a solid-state reaction method. The structural, electrical and electrochemical properties are studied in detail. It is found that the increment of lithium concentration (up to x = 1.05) does not affect the structure of LiFePO$_{4}$ but improves its electrical conductivity as well as electrochemical performance. Surface morphological studies exhibited the formation of rod-like nanoparticles with small size. Electric and dielectric properties are also investigated over a frequency range of 1 Hz–1 MHz at different temperatures. The conductivity increased with increasing temperature, which follows the Arrhenius relation with the activation energy of about 0.31 eV. And the electrochemical tests found that the Li$_{1.05}$FePO$_{4}$ cathode possessed improved discharge capacity with better cycling performance. ISSN 03615235 Age Range 18 to 22 years ♦ above 22 year Educational Use Research Education Level UG and PG Learning Resource Type Article Publisher Date 2017-04-06 Publisher Place New York e-ISSN 1543186X Journal Journal of Electronic Materials Volume Number 46 Issue Number 8 Page Count 10 Starting Page 4865 Ending Page 4874