| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1292442 | Journal of Power Sources | 2006 | 6 Pages |
Abstract
We provide data on the changes in structure and composition of commercial LiNi0.8Co0.2O2 electrode materials for lithium-ion batteries occurring after surface coating with two types of metal oxides: electrochemically active LiCoO2 and inactive MgO. XRD analysis, SEM images, IR spectroscopy and EPR of low-spin Ni3+ ions were carried out for structural characterisation of coated LiNi0.8Co0.2O2 electrodes. Surface modification with LiCoO2 was found to be a more effective route for improving the cycling stability of LiNi0.8Co0.2O2. The favourable effect of LiCoO2-coating was connected with an enhanced stability of the bulk composition and reduction of electrode/electrolyte interaction.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
E. Zhecheva, Ml Mladenov, R. Stoyanova, S. Vassilev,