Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0167-2738(02)00301-6
DC FieldValue
dc.titleCathodic properties of (Al, Mg) co-doped LiNi0.7Co0.3O2
dc.contributor.authorMadhavi, S.
dc.contributor.authorSubba Rao, G.V.
dc.contributor.authorChowdari, B.V.R.
dc.contributor.authorLi, S.F.Y.
dc.date.accessioned2014-10-16T08:47:54Z
dc.date.available2014-10-16T08:47:54Z
dc.date.issued2002-12
dc.identifier.citationMadhavi, S., Subba Rao, G.V., Chowdari, B.V.R., Li, S.F.Y. (2002-12). Cathodic properties of (Al, Mg) co-doped LiNi0.7Co0.3O2. Solid State Ionics 152-153 : 199-205. ScholarBank@NUS Repository. https://doi.org/10.1016/S0167-2738(02)00301-6
dc.identifier.issn01672738
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/95442
dc.description.abstractLi(Ni0.7Co0.3)1-a-bAlaMgb O2 (a=0.00, 0.05 and a=0.05; b=0.02,0.05) compounds were synthesized and characterized by X-ray diffraction (XRD). Their cathodic behavior in coin cells with Li-metal anode and liquid electrolyte was studied by charge-discharge cycling at 0.11C (1C=180 mA/g) and 0.5C rate between 2.7 and 4.3 V and by cyclic voltammetry. The initial discharge capacity values of a=0.05, b=0.02; a=0.05, b=0.05 are 158 and 160 mA h/g, respectively, at 0.11C rate. At 0.5C rate, phases with a=0.05, b=0.02; a=0.05, b=0.05 show better capacity retention (82% and 90%, respectively) as compared to a=0.00, b=0.00; a=0.05, b=0.00 (62% and 67%, respectively) in the range 5-50 cycle. Cyclic voltammograms clearly indicate qualitative and quantitative changes as a result of Al- and (Al, Mg)-doping to give better reversibility of the cathode. Differential scanning calorimetry (DSC) data on the charged cathodes shows an increase in the decomposition temperature (Td) by 25-34 °C accompanied by decreased heat evolution indicating better thermal stability of these (Al, Mg) co-doped (a=0.05; b=0.02,0.05) cathodic compositions as compared to pristine LiNi0.7Co0.3O2 (a=b=0.0). © 2002 Published by Elsevier Science B.V.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0167-2738(02)00301-6
dc.sourceScopus
dc.subjectAluminium
dc.subjectCathode
dc.subjectDoping
dc.subjectLi-ion batteries
dc.subjectMagnesium
dc.typeConference Paper
dc.contributor.departmentPHYSICS
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1016/S0167-2738(02)00301-6
dc.description.sourcetitleSolid State Ionics
dc.description.volume152-153
dc.description.page199-205
dc.description.codenSSIOD
dc.identifier.isiut000179999600027
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

20
checked on Dec 6, 2019

WEB OF SCIENCETM
Citations

18
checked on Dec 6, 2019

Page view(s)

96
checked on Nov 30, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.