Electrochemical characterization of LiCoO2
Elektrohemijska karakterizacija LiCoO2
dc.creator | Grgur, Branimir | |
dc.creator | Vojnović, Milan V. | |
dc.creator | Pavlović, Olivera Ž. | |
dc.creator | Srdić, Vladimir V. | |
dc.date.accessioned | 2021-03-10T09:53:51Z | |
dc.date.available | 2021-03-10T09:53:51Z | |
dc.date.issued | 2000 | |
dc.identifier.issn | 1450-7188 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/328 | |
dc.description.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. . | en |
dc.description.abstract | 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. . | sr |
dc.publisher | Faculty of Technology, Novi Sad | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Acta periodica technologica | |
dc.subject | LiCoO2 | sr |
dc.subject | interkalacija | sr |
dc.subject | deinterkalacija | sr |
dc.subject | difuzija | sr |
dc.subject | koeficijent difuzije | sr |
dc.title | Electrochemical characterization of LiCoO2 | en |
dc.title | Elektrohemijska karakterizacija LiCoO2 | sr |
dc.type | article | |
dc.rights.license | BY-NC-ND | |
dc.citation.epage | 505 | |
dc.citation.issue | 31 | |
dc.citation.other | (31): 497-505 | |
dc.citation.spage | 497 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_technorep_328 | |
dc.type.version | publishedVersion |
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