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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 14/2019

08.07.2019

PEDOT:PSS coating on pristine and carbon coated LiFePO4 by one-step process: the study of electrochemical performance

verfasst von: Hari Raj, Anjan Sil

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 14/2019

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Abstract

The carbon coating on lithium iron phosphate (LiFePO4) is well known process to improve the electrical conductivity of non-conductive LiFePO4 (LFP). But due to complex process of carbon coating at high temperature, herein, we report study on poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) water soluble conducting polymer coated pristine LFP as well as carbon coated LFP (LFP/C) prepared by simple one step process. PEDOT:PSS coating has played very important role in enhancing the electrochemical performance of Li-ion battery as well as electrical conductivity of LFP and LFP/C samples. The electrical conductivity of PEDOT:PSS coated LiFePO4 samples is increased by many folds (104−108) as compared to pristine and carbon coated LFP. The study reveals that different optimum amount of PEDOT:PSS say 10 wt% and 5 wt% is required for best electrochemical performance of pristine LFP and LFP/C, and samples are designated as LFP-10P and LFP/C-5P respectively. Sample LFP-10P has shown discharge capacity of 140.8 mAh g−1 whereas LFP/C-5P shown 154.6 mAh g−1 at current rate of 0.1C. The same samples have shown highest capacity retention of 92% and 96% respectively after 200 cycles, in their group.
Vorheriger Artikel Development of WO3-PEDOT: PSS hybrid nanocomposites based devices for liquefied petroleum gas (LPG) sensor
Nächster Artikel A comparison of the electrical characteristics of TiO2/p-Si/Ag, GNR-TiO2/p-Si/Ag and MWCNT-TiO2/p-Si/Ag photodiodes

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Metadaten
Titel
PEDOT:PSS coating on pristine and carbon coated LiFePO4 by one-step process: the study of electrochemical performance
verfasst von
Hari Raj
Anjan Sil
Publikationsdatum
08.07.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 14/2019
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-019-01730-1

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