Characteristic of life(1-x)vxpo4/c using carbon pyrolyzed from table sugar for lithium ion battery cathode

Nofrijon Bin Imam Sofyan, Adlan Mizan, Anne Zulfia Syahrial,, Achmad Subhan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Used of carbon pyrolyzed from table sugar in the synthesis of LiFe(1-x)Vx PO4 /C for lithium ion battery cathode has been examined. The process was begun by synthesizing LiFePO4 through a hydrothermal method with the precursors of LiOH, NH4 H2 PO4 and FeSO4.7H2 O. The as-synthesized LiFePO4 was then mixed with various H4 NO3 V concentrations and fixed 3 wt.% of carbon pyrolyzed from table sugar and calcined for 2 hours at 400 °C. The result was ball-milled and was then characterized using a thermal analyzer to determine the transition temperature at which sintering temperature of 700 °C for 4 hours was obtained. X-ray diffraction (XRD) was performed to analyze the crystal structure whereas scanning electron microscope (SEM) was used to examine the microstructure and surface morphology. XRD results show that LiFe(1-x)Vx PO4/C phase has been formed with an olivine-based structure. SEM results showed an even distribution of LiFe(1-x)Vx PO4/C particles. The batteries were prepared from the as-synthesized materials and were tested using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and charge and discharge (CD) tests. The EIS results showed that carbon improved the conductivity. The performance test showed that the addition of vanadium resulted in a capacity of about 51.06 mAh/g with a potential of 3.581 V at charging and 49.42 mAh/g with a potential of 3.319 V at discharging. These results are promising in terms of using table sugar as a cheap carbon source for lithium ion battery cathode development.

Original languageEnglish
Title of host publicationAdvanced Materials Research - QiR 15
EditorsArdiyansyah Yatim
PublisherTrans Tech Publications Ltd
Pages33-41
Number of pages9
ISBN (Print)9783035712667
DOIs
Publication statusPublished - 1 Jan 2018
Event15th International Conference on Quality in Research, QiR 2017 - Nusa Dua, Bali, Indonesia
Duration: 24 Jul 201727 Jul 2017

Publication series

NameMaterials Science Forum
Volume929 MSF
ISSN (Print)0255-5476

Conference

Conference15th International Conference on Quality in Research, QiR 2017
Country/TerritoryIndonesia
CityNusa Dua, Bali
Period24/07/1727/07/17

Keywords

  • Battery cathode
  • Hydrothermal
  • Lithium ferro phosphate
  • Pyrolysis
  • Table sugar

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