Synthesis and characterization of nanosize cobalt sulfide for rechargeable lithium batteries

Elsevier Ltd.
Publication Type:
Journal Article
Journal of Power Sources, 2006, 159 (1), pp. 287 - 290
Issue Date:
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2009006612OK.pdf317.06 kB
Adobe PDF
Nanosize cobalt sulfides were synthesized through a one step chemical reaction method at room temperature. The cobalt sulfide nanopowders were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy and electrochemical testing. The results revealed that the cobalt sulfide is a semiconductor; the reversible capacity is increased with increasing content of electronic conductors in the active material of electrodes. The as prepared sample with 10 wt.% carbon black and 10 wt.% polypyrrole (PPy) powder as electronic conductors shows the best electrochemical properties, with a reversible capacity of over 300 mAh g-1 based on the total mass of the electrode. Cobalt sulfide nanopowders show promise as cathode active materials for lithium-rechargeable batteries.
Please use this identifier to cite or link to this item: