Journal article
Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior
Electrochimica Acta, Vol.101, pp.18-26
2013
Abstract
LiCoPO 4/C nanocomposite with growth controlled by carbonate anions was synthesized via a unique solid-state fusion method. Carbonate anions in the form of H 2CO 3 or a mixture of H 2CO 3 + (NH 4) 2CO 3 have been used as a growth inhibiting modifier to produce morphology controlled lithium cobalt phosphate. The presence of cobalt phosphide (Co 2P) as a second phase improved the conductivity and electrochemical properties of the parent LiCoPO 4. The formation of Co 2P is found to be achievable only in an inert atmosphere. Super P ® carbon (10 wt.%) provided an adherent carbon coating on pristine LiCoPO 4 resulting in the LiCoPO 4/C composite cathode. This electrode exhibited enhanced electrochemical properties: capacity of 123 mAh g -1 with excellent capacity retention of 89% after 30 cycles, and reasonable rate capability of up to 5 C rate. The synergistic effect of carbonate anions and formation of Co 2P under inert atmosphere has influenced the electrochemical behavior of LiCoPO 4/C cathode through controlling the morphology and increasing the conductivity.
Details
- Title
- Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior
- Authors/Creators
- Gangulibabu (Author/Creator) - Central Electrochemical Research InstituteK. Nallathamby (Author/Creator) - Central Electrochemical Research InstituteD. Meyrick (Author/Creator) - Murdoch UniversityM. Minakshi (Author/Creator) - Murdoch University
- Publication Details
- Electrochimica Acta, Vol.101, pp.18-26
- Publisher
- Elsevier
- Identifiers
- 991005541186407891
- Copyright
- © 2012 Elsevier Ltd.
- Murdoch Affiliation
- School of Chemical and Mathematical Science; School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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