Structural and electrochemical properties of ICP/LiMn2O4 composite cathodes

Citation
Jo. Kim et al., Structural and electrochemical properties of ICP/LiMn2O4 composite cathodes, MOLEC CRYST, 349, 2000, pp. 287-290
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Volume
349
Year of publication
2000
Pages
287 - 290
Database
ISI
SICI code
Abstract
PPy/LiMn2O4 composites were prepared by chemical synthesis of pyrrole monom er onto LiMn2O4 powder in the presence of dodecyl bezenesufonic acid (DBSA) dopant. Thermogravimetric analysis showed that the content of LiMn2O4 in t he composite increased with increasing the amount of manganese oxide powder . The battery performance of PPy/LiMn2O4 composite cathodes initially charg ed was compared with the physical mixture of both materials. Li/(PPy/LiMn2O 4) ion cell with EC/DMC/1M LiPF6 electrolyte showed that cycle performance was enhanced by the redox reactivity of PPy as well as the enhanced conduct ivity of composite electrode. The reversibility of Li cation was proven by electrochemical voltage spectroscopy (EVS).