The electrochemical characteristics of LiCoO2 as a positive electrode for lithium-ion batteries, have been investigated. The LiCoO2 were sintetized from Li2CO3 and Co203 by thermal treatment at 1273 K for 24 h in the air. All the electrochemical measurements were performed in 1 mol dm-3 LiClO4 solutions in propylene carbonate. By using the electrochemical impedance spectroscopy at the open circuit potential, the exchange current for different states of charges for Li1-xCoO2 (0,6 lt 1-x lt 0,9), with the values of ~190 do 40mA, have been determined. From the analysis of potentiostatic pulses, the diffusion coefficient of lithium for different states of charges (0.65 lt 1-x lt 0.9), with an average values of (1,7±2)x10-10 cm2s-1 have been determined. .
U radu su ispitivane elektrohemijske karakteristike LiCoO2 kao pozitivne elektrode litijum-jon akumulatora. LiCoO2 je sintetizovan polazeći od LiCO3 i Co203 termičkim tretmanom na 1273 K u toku 24 sata u atmosferi vazduha. Sva elektrohemijska ispitivanja su obavljena u rastvoru 1 mol dm-3 LiClO4 u propilen-karbonatu. Korišćenjem metode elektrohemijske impedansne spektroskopije u okolini potencijala otvorenog kola, određena je zavisnost gustine struje izmene od stepena napunjenosti Li1-xCoO2 (0,6 lt 1-x lt 0,9), sa vrednošću ~190 do 40mA. Iz analize potenciostatskih pulseva, određen je koeficijenl difuzije litijuma pri interkalaciji za različite stepene napunjenosti (0,65 lt x lt 0,9), sa srednjom vrednošću od (1,7±2)x10-10 cm2s-1. .
TY - JOUR
AU - Grgur, Branimir
AU - Vojnović, Milan V.
AU - Pavlović, Olivera Ž.
AU - Srdić, Vladimir V.
PY - 2000
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/328
AB - The electrochemical characteristics of LiCoO2 as a positive electrode for lithium-ion batteries, have been investigated. The LiCoO2 were sintetized from Li2CO3 and Co203 by thermal treatment at 1273 K for 24 h in the air. All the electrochemical measurements were performed in 1 mol dm-3 LiClO4 solutions in propylene carbonate. By using the electrochemical impedance spectroscopy at the open circuit potential, the exchange current for different states of charges for Li1-xCoO2 (0,6 lt 1-x lt 0,9), with the values of ~190 do 40mA, have been determined. From the analysis of potentiostatic pulses, the diffusion coefficient of lithium for different states of charges (0.65 lt 1-x lt 0.9), with an average values of (1,7±2)x10-10 cm2s-1 have been determined. .
AB - U radu su ispitivane elektrohemijske karakteristike LiCoO2 kao pozitivne elektrode litijum-jon akumulatora. LiCoO2 je sintetizovan polazeći od LiCO3 i Co203 termičkim tretmanom na 1273 K u toku 24 sata u atmosferi vazduha. Sva elektrohemijska ispitivanja su obavljena u rastvoru 1 mol dm-3 LiClO4 u propilen-karbonatu. Korišćenjem metode elektrohemijske impedansne spektroskopije u okolini potencijala otvorenog kola, određena je zavisnost gustine struje izmene od stepena napunjenosti Li1-xCoO2 (0,6 lt 1-x lt 0,9), sa vrednošću ~190 do 40mA. Iz analize potenciostatskih pulseva, određen je koeficijenl difuzije litijuma pri interkalaciji za različite stepene napunjenosti (0,65 lt x lt 0,9), sa srednjom vrednošću od (1,7±2)x10-10 cm2s-1. .
PB - Faculty of Technology, Novi Sad
T2 - Acta periodica technologica
T1 - Electrochemical characterization of LiCoO2
T1 - Elektrohemijska karakterizacija LiCoO2
EP - 505
IS - 31
SP - 497
UR - https://hdl.handle.net/21.15107/rcub_technorep_328
ER -
@article{
author = "Grgur, Branimir and Vojnović, Milan V. and Pavlović, Olivera Ž. and Srdić, Vladimir V.",
year = "2000",
abstract = "The electrochemical characteristics of LiCoO2 as a positive electrode for lithium-ion batteries, have been investigated. The LiCoO2 were sintetized from Li2CO3 and Co203 by thermal treatment at 1273 K for 24 h in the air. All the electrochemical measurements were performed in 1 mol dm-3 LiClO4 solutions in propylene carbonate. By using the electrochemical impedance spectroscopy at the open circuit potential, the exchange current for different states of charges for Li1-xCoO2 (0,6 lt 1-x lt 0,9), with the values of ~190 do 40mA, have been determined. From the analysis of potentiostatic pulses, the diffusion coefficient of lithium for different states of charges (0.65 lt 1-x lt 0.9), with an average values of (1,7±2)x10-10 cm2s-1 have been determined. ., U radu su ispitivane elektrohemijske karakteristike LiCoO2 kao pozitivne elektrode litijum-jon akumulatora. LiCoO2 je sintetizovan polazeći od LiCO3 i Co203 termičkim tretmanom na 1273 K u toku 24 sata u atmosferi vazduha. Sva elektrohemijska ispitivanja su obavljena u rastvoru 1 mol dm-3 LiClO4 u propilen-karbonatu. Korišćenjem metode elektrohemijske impedansne spektroskopije u okolini potencijala otvorenog kola, određena je zavisnost gustine struje izmene od stepena napunjenosti Li1-xCoO2 (0,6 lt 1-x lt 0,9), sa vrednošću ~190 do 40mA. Iz analize potenciostatskih pulseva, određen je koeficijenl difuzije litijuma pri interkalaciji za različite stepene napunjenosti (0,65 lt x lt 0,9), sa srednjom vrednošću od (1,7±2)x10-10 cm2s-1. .",
publisher = "Faculty of Technology, Novi Sad",
journal = "Acta periodica technologica",
title = "Electrochemical characterization of LiCoO2, Elektrohemijska karakterizacija LiCoO2",
pages = "505-497",
number = "31",
url = "https://hdl.handle.net/21.15107/rcub_technorep_328"
}
Grgur, B., Vojnović, M. V., Pavlović, O. Ž.,& Srdić, V. V.. (2000). Electrochemical characterization of LiCoO2. in Acta periodica technologica
Faculty of Technology, Novi Sad.(31), 497-505.
https://hdl.handle.net/21.15107/rcub_technorep_328
Grgur B, Vojnović MV, Pavlović OŽ, Srdić VV. Electrochemical characterization of LiCoO2. in Acta periodica technologica. 2000;(31):497-505.
https://hdl.handle.net/21.15107/rcub_technorep_328 .
Grgur, Branimir, Vojnović, Milan V., Pavlović, Olivera Ž., Srdić, Vladimir V., "Electrochemical characterization of LiCoO2" in Acta periodica technologica, no. 31 (2000):497-505,
https://hdl.handle.net/21.15107/rcub_technorep_328 .
