Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved
electrochemical behavior
|
|
| Creator |
Gangulibabu, .
Kalaiselvi, N. Daniella, Meyrick Minakshi, M. |
|
| Subject |
Lithium batteries
Electrochemical Power Sources |
|
| Description |
LiCoPO4/C nanocomposite with growth controlled by carbonate anions was synthesized via a unique
solid-state fusion method. Carbonate anions in the form of H2CO3 or a mixture of H2CO3 + (NH4)2CO3 have
been used as a growth inhibiting modifier to produce morphology controlled lithium cobalt phosphate.
The presence of cobalt phosphide (Co2P) as a second phase improved the conductivity and electrochemical
properties of the parent LiCoPO4. The formation of Co2P is found to be achievable only in an inert
atmosphere. Super P® carbon (10 wt.%) provided an adherent carbon coating on pristine LiCoPO4 resulting
in the LiCoPO4/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 Co2P under inert
atmosphere has influenced the electrochemical behavior of LiCoPO4/C cathode through controlling the
morphology and increasing the conductivity.
|
|
| Publisher |
Elsevier
|
|
| Date |
2013
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cecri.csircentral.net/3058/1/052-2013.pdf
Gangulibabu, . and Kalaiselvi, N. and Daniella, Meyrick and Minakshi, M. (2013) Carbonate anion controlled growth of LiCoPO4/C nanorods and its improved electrochemical behavior. Electrochimica Acta, 101. pp. 18-26. ISSN 0013-4686 |
|
| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3058/ |
|