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Title: Effect of precursor concentration on the electrical properties of LiFePO{sub 4} prepared by solvothermal method

Lithium iron phosphate (LiFePO{sub 4}) is frequently used for Li-ion battery cathode. LiFePO{sub 4} has the high specific capacity at 170 mAhg{sup −1}, stable voltage at 3.45 V, stable structure, cheap, and low toxicity. The objective of this research is investigating the effect of precursor concentration on the electrical properties of LiFePO{sub 4} prepared by solvothermal method. LiOH, FeSO{sub 4}, H{sub 3}PO{sub 4}, and citric acid were used as the precursors. The LiOH concentration was varied from 0.3 M to 1.8 M. The Fourier Transform Infrared Spectroscopy (FTIR) measurement identified the Fe-O, O-P-O, and P-O bonds which corresponding to LiFePO{sub 4}. The result of 4-point probe measurement shows that, among the prepared samples, the sample from the precursor concentration of 1.8 M has the highest electrical conductivity.
Authors:
; ; ;  [1] ;  [1] ;  [2]
  1. Physics of Electronic Materials Research Division Department of Physics, Institut Teknologi Bandung, Bandung 40132 Indonesia (Indonesia)
  2. (Indonesia)
Publication Date:
OSTI Identifier:
22494617
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1710; Journal Issue: 1; Conference: NNS2015: 6. nanoscience and nanotechnology symposium, Surakarta (Indonesia), 4-5 Nov 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CAPACITY; CATHODES; CITRIC ACID; ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; FOURIER TRANSFORM SPECTROMETERS; FOURIER TRANSFORMATION; INFRARED SPECTRA; IRON PHOSPHATES; IRON SULFATES; LITHIUM HYDROXIDES; LITHIUM ION BATTERIES; PHOSPHORIC ACID; PRECURSOR; TOXICITY