On the Synergistic Effect of Carbonate Anion Directed Shape Controlled Morphology and Super P Carbon in Preparing LiFePO4/C Cathode With Improved Lithium Intercalation Behavior
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
On the Synergistic Effect of Carbonate Anion Directed Shape
Controlled Morphology and Super P Carbon in Preparing
LiFePO4/C Cathode With Improved Lithium Intercalation
Behavior
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| Creator |
Babu, G.
Kalaiselvi, N. Bhuvaneswari, D. Doh, C.H. |
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| Subject |
Lithium batteries
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| Description |
A simple and carbonic acid directed modified mechano thermal (MMT) method is identified to
produce morphology controlled nano rods of LiFePO4/C composite. The added carbonic acid plays a
vital role in controlling the morphology (CO3
2- inhibition effect) and the formation of rod-like structure
that results from the unidirectional escape of CO2 gas upon calcination. MMT synthesized LiFePO4/C
cathode containing 2 wt.% conducting graphite exhibits a nominal specific capacity of 129 mAhg-1,
while the corresponding LiFePO4/C with 2 wt.% nickel coated graphite delivers 100 mAhg-1 capacity.
On the other hand, MMT synthesized LiFePO4/C composite cathode consisting of 2 wt.% super P
carbon exhibits an appreciable capacity of 160 mAhg-1 with an acceptable rate capability behaviour.
The synergistic effect of shape controlled morphology (resulting from MMT synthesis approach) and
the addition of super P carbon in improving the electrochemical behavior of LiFePO4/C composite
cathode is demonstrated in the present study.
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/245/1/2010-043.pdf
Babu, G. and Kalaiselvi, N. and Bhuvaneswari, D. and Doh, C.H. (2010) On the Synergistic Effect of Carbonate Anion Directed Shape Controlled Morphology and Super P Carbon in Preparing LiFePO4/C Cathode With Improved Lithium Intercalation Behavior. International Journal of ELECTROCHEMICAL SCIENCE, 5. 1597 -1604. ISSN 1452-3981 |
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| Relation |
http://cecri.csircentral.net/245/
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