LiMn sub(2)O sub(4) particles prepared by spray pyrolysis from spray solution with citric acid and ethylene glycol

Spinel LiMn sub(2)O sub(4) particles with fine sizes and regular morphologies were successfully synthesized by ultrasonic spray pyrolysis at the severe preparation conditions from a spray solution with citric acid and ethylene glycol. The as-prepared particles with spherical shapes, porous structure...

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Bibliographic Details
Published inJournal of materials science Vol. 42; no. 14; pp. 5369 - 5374
Main Authors Ju, Seo Hee, Kim, Do Youp, Jo, Eun Byul, Kang, Yun Chan
Format Journal Article
LanguageEnglish
Published 01.07.2007
Subjects
Citric acid
Discharge
Ethylene glycol
Particle size distribution
Spinel
Spray pyrolysis
Sprayers
Sprays
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Summary:Spinel LiMn sub(2)O sub(4) particles with fine sizes and regular morphologies were successfully synthesized by ultrasonic spray pyrolysis at the severe preparation conditions from a spray solution with citric acid and ethylene glycol. The as-prepared particles with spherical shapes, porous structures and micron sizes turned into LiMn sub(2)O sub(4) particles with submicron size and narrow size distribution at the post-treatment temperature of 800 C. The discharge capacities of the particles prepared from the spray solution with citric acid and ethylene glycol changed from 90 to 127 mAh/g when the post-treatment temperature was changed from 700 to 1,000 C. The LiMn sub(2)O sub(4) particles had maximum discharge capacities at the post-treatment temperature of 800 C. The discharge capacity of the LiMn sub(2)O sub(4) particles dropped from 127 to 108 mAh/g by the 30th cycle.
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ISSN:0022-2461
DOI:10.1007/s10853-006-0903-0