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INCREASE OF MOBILITY OF IONS IN LI-ION BATTERIES BY ULTRATHIN PHONON COATINGS OF ELECTRODES

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Author(s): D. Lj. Mirjanić | J. P. Šetrajčić | S. S. Pelemiš | S. Armaković2

Journal: Contemporary Materials
ISSN 1986-8669

Volume: 2;
Issue: 2;
Start page: 145;
Date: 2011;
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Keywords: ion con­duc­ti­vity | Li-ion bat­te­ri­es | ul­trat­hin films | pho­nons | he­at ca­pa­city

ABSTRACT
This pa­per pre­sents the re­sults of re­se­arch of behavior of pho­non sub-system in ul­trat­hin co­a­tings that are ap­plied on elec­tro­des in Li-ion bat­te­ri­es and that in­cre­a­se the ef­fi­ci­ency of ion tran­sport. Using the met­hod of Green fun­cti­ons it was de­mon­stra­ted that in ul­trat­hin films, in­cre­a­sed mec­ha­ni­cal oscil­la­ting of crystal­li­ne lat­ti­ce and for­ming of stan­ding wa­ves oc­cur, whi­le, ther­mal ca­pa­ci­ti­ve­ness and con­duc­tion of the ove­rall co­a­ting dec­re­a­ses. With their in­cre­a­sed oscil­la­ting, pho­nons re­le­a­se the ions cap­tu­red on and wit­hin elec­tro­des, and thus influence an in­cre­a­se in ef­fi­ci­ency of ion con­duc­ti­vity.
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