TY - GEN
T1 - The effects of carbon coating on the structure and electrical conductivity of LiFeSi0.03p0.97o4/c cathode material via solid state process
AU - Az-Zahra, Pelangi
AU - Zainuri, Mochamad
AU - Della, Hafizhah Ellora
AU - Putri, May Shela Widya
AU - Subagyo, Bintoro Anang
N1 - Publisher Copyright:
© 2021 Trans Tech Publications Ltd, Switzerland.
PY - 2021
Y1 - 2021
N2 - The synthesis of LiFeSi0.03P0.97O4/C (LFSP/C) composites have been done by solid state method. This study investigates the effects of carbon coating on the structure, microstructure and electrical conductivity of LFSP/C cathode materials. The carbon coating on Lithium Ferro Phosphate (LFP) plays a crucial role in determining its electrical conductivity. The variation of carbon content is 0wt.%; 6wt.%; 7wt.%; 8wt.% (LFP-0%, LFP-6%, LFP-7% and LFP-8%). The characterization was performed using X-Ray Diffraction (XRD), Scanning Electron Microscopy Energy Dispersive X-ray (SEM-EDX), HighResolution-Transmission Electron Microscopy (HRTEM) and LCR Meter tests. The XRD result have shown single-phase olivine (LiFePO4) in all samples. The analysis microstructure using SEM have shown increasing carbon content can reduce agglomeration. The particles size of LFSP is 845.570 nm, and after coating carbon the particles size decreased up to 457.191 nm. The EDX results showed that the amount of atomic percentage for carbon tends to increase as the amount of carbon content increased. HR-TEM images indicates that the formation of carbon layer have formed, but not perfectly coat the LFP particle. The average carbon layer size is 78.31 nm with the size of LFSP particle is 352.82 nm. The LCR Meter result showed that LFP-7% had the largest electronic conductivity (2.275x10-7 S/cm). The carbon coating led to significant enhancement in electronic conductivity from ~10-9-10-10 S/cm to ~10-7 S/cm.
AB - The synthesis of LiFeSi0.03P0.97O4/C (LFSP/C) composites have been done by solid state method. This study investigates the effects of carbon coating on the structure, microstructure and electrical conductivity of LFSP/C cathode materials. The carbon coating on Lithium Ferro Phosphate (LFP) plays a crucial role in determining its electrical conductivity. The variation of carbon content is 0wt.%; 6wt.%; 7wt.%; 8wt.% (LFP-0%, LFP-6%, LFP-7% and LFP-8%). The characterization was performed using X-Ray Diffraction (XRD), Scanning Electron Microscopy Energy Dispersive X-ray (SEM-EDX), HighResolution-Transmission Electron Microscopy (HRTEM) and LCR Meter tests. The XRD result have shown single-phase olivine (LiFePO4) in all samples. The analysis microstructure using SEM have shown increasing carbon content can reduce agglomeration. The particles size of LFSP is 845.570 nm, and after coating carbon the particles size decreased up to 457.191 nm. The EDX results showed that the amount of atomic percentage for carbon tends to increase as the amount of carbon content increased. HR-TEM images indicates that the formation of carbon layer have formed, but not perfectly coat the LFP particle. The average carbon layer size is 78.31 nm with the size of LFSP particle is 352.82 nm. The LCR Meter result showed that LFP-7% had the largest electronic conductivity (2.275x10-7 S/cm). The carbon coating led to significant enhancement in electronic conductivity from ~10-9-10-10 S/cm to ~10-7 S/cm.
KW - Carbon coating
KW - Cathode
KW - Conductivity
KW - Olivine
KW - Solid-state method
UR - http://www.scopus.com/inward/record.url?scp=85107201683&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.1028.179
DO - 10.4028/www.scientific.net/MSF.1028.179
M3 - Conference contribution
AN - SCOPUS:85107201683
SN - 9783035718690
T3 - Materials Science Forum
SP - 179
EP - 184
BT - Functional Materials
A2 - Risdiana, null
A2 - Kurniawan, Budhy
A2 - Darminto, null
A2 - Nugroho, A.A.
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Functional Materials Science, ICFMS 2020
Y2 - 11 November 2020 through 12 November 2020
ER -