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dc.contributor.authorZhang, Z. R.
dc.contributor.authorLi, J.
dc.contributor.authorYang, Y.
dc.contributor.author杨勇
dc.date.accessioned2011-06-24T00:16:44Z
dc.date.available2011-06-24T00:16:44Z
dc.date.issued2006-07
dc.identifier.citationELECTROCHIMICA ACTA,2006,52(4):1442-1450zh_CN
dc.identifier.issn0013-4686
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.electacta.2006.02.058
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/9739
dc.description.abstractIn this work, the effects of decomposition products of electrolytes on the thermal stability of bare and TiO2-coated Li1-xNi0.8Co0.2O2 (1 > x >= 0) cathode material have been investigated by means of thermoanalytical, thermokinetic and temperature-programmed desorption-mass spectroscopy (TPD-MS) techniques. It is shown clearly that the decomposition products of the electrolytes such as carboxylates have distinctive effects on the thermal stability of the electrode materials. Firstly, the thermoanalytical and TPD-MS results indicate that surface coating can suppress the amount of oxygen release from the delithiated cathode material. The thermokinetic analytical results show that the reaction of oxygen release (i.e. oxygen loss) from delithiated Li1-xNi0.8Co0.2O2 material can be promoted by carboxylate salts supported on the electrode surface due to the decrease of initiated activation energy E-a of the reaction. Finally, the amount of carboxylate salts and length of carbon chains in carboxylates have different promotional effects on the thermal properties of the electrode materials. (c) 2006 Published by Elsevier Ltd.zh_CN
dc.language.isoenzh_CN
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDzh_CN
dc.subjectdecomposition productszh_CN
dc.subjectthermal stabilityzh_CN
dc.subjectTPD-MSzh_CN
dc.titleThe effects of decomposition products of electrolytes on the thermal stability of bare and TiO2-coated delithiated Li1-xNi0.8Co0.2O2 cathode materialszh_CN
dc.typeArticlezh_CN


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