High electrochemical performance of F-doped LiFePO4 as cathode for lithium-ion battery

Lukman Noerochim*, Ahmad Ilham Ramadhani, Diah Susanti

*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

F-doped LiFePO4 was synthesized by solid-state reaction method through the formation of Fe2P2O7 from precursors of Li2CO3, F2O3, NH4H2PO4, and LiF. Variations at temperatures of 700 °C and 750 °C with 0.1F. XRD results show a peak shift towards a high degree at 28 around 35°-36°. The peak shift indicates an indication of substitution of F ions in the position of oxygen (O) in the LiFePO4, with the smaller lattice parameters and unit cells. The distribution of F in the LFP cathode material is homogeneously distributed by SEM-EDX results, and the number of atomic weight is 0.051%. The best electrochemical performance of F-doped LFP is demonstrated by LFP 700+0.1F with the CV test results in the presence of an oxidation reaction (3.69 V) and reduction (3.26 V). The best value of V at LFP 700+0.1F is 0.4305 V, an indicating faster diffusion movements from Li+. The LFP 700+0.1F sample has the highest specific discharge capacity of 131.50 mAh/g at current 0.001C.

Original languageEnglish
Title of host publicationInternational Conference on Science and Applied Science, ICSAS 2019
EditorsA. Suparmi, Dewanta Arya Nugraha
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419537
DOIs
Publication statusPublished - 27 Dec 2019
EventInternational Conference on Science and Applied Science 2019, ICSAS 2019 - Surakarta, Indonesia
Duration: 20 Jul 2019 → …

Publication series

NameAIP Conference Proceedings
Volume2202
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Science and Applied Science 2019, ICSAS 2019
Country/TerritoryIndonesia
CitySurakarta
Period20/07/19 → …

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