| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1624903 | Journal of Alloys and Compounds | 2008 | 4 Pages |
Abstract
The AlPO4-coated layered LiNi0.8Co0.2O2 samples were prepared, and characterized by powder X-ray diffraction, high-resolution transmission electron microscopy, differential scanning calorimetry, X-ray photoelectron, electrochemical impedance spectroscopy and electrochemical test. It is found that the AlPO4 layer is amorphous with the thickness of 5 nm. The AlPO4-coated LiNi0.8Co0.2O2 cathode material has increased reversible capacity, stabilized cycling performance, improved high-temperature performance, which are attributed to can minimize the harmful side reactions within the batteries by placing a protective barrier layer between the oxidizing cathode material and liquid electrolyte and the decrease of electrochemical impedance.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xiaoling Ma, Chiwei Wang, Xiaoyan Han, Jutang Sun,