MgAl2O4 spinel-coated LiCoO2 as long-cycling cathode materials
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
MgAl2O4 spinel-coated LiCoO2 as long-cycling cathode materials
|
|
| Creator |
Fey, G.T.
Wang, Z.F. Lu, C.Z. Premkumar, T. |
|
| Subject |
Lithium batteries
Electrochemical Power Sources |
|
| Description |
The enhanced cyclability of LiCoO2 coated with MgAl2O4 is described. A TEM examination of the microstructure of the coated particles
revealed that the spinel formed a rather uniform coating over the cathode material. XRD data suggested the presence of substitutional oxides
on the surface of the cathode particles. R-factor values from XRD studies and galvanostatic cycling studies suggested that a coating level of
1.0 wt.% gave an optimal performance in capacity and cyclability. A commercial sample of LiCoO2 coated with 1.0 wt.% of spinel registered
a five-fold improvement in cyclability. The improved cyclability is attributed to a suppression of the cycle-limiting phase transitions that
accompany the charge–discharge processes.
|
|
| Publisher |
Elsevier
|
|
| Date |
2005
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cecri.csircentral.net/124/1/064-2005.pdf
Fey, G.T. and Wang, Z.F. and Lu, C.Z. and Premkumar, T. (2005) MgAl2O4 spinel-coated LiCoO2 as long-cycling cathode materials. Journal of Power Sources, 146. pp. 245-249. |
|
| Relation |
http://cecri.csircentral.net/124/
|
|