Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1624944 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
LiNi0.9Co0.1O2 cathode material was prepared by a rheological phase reaction method with LiOH·H2O and Ni0.9Co0.1(OH)2 as starting materials. The mixture of reactants and a proper amount of water reacted to form a rheological precursor, and then the dried precursor was sintered in flowing oxygen based on the results of thermogravimetric. The sintering temperature has a remarkable effect on the electrochemical performance of the samples. The sample LiNi0.9Co0.1O2 material sintered at 730 °C for 6 h has the largest initial discharge capacity 195.7 mAh gâ1 (50 mA gâ1, 3.0-4.3 V) and shows the better electrochemical performance, capacity retention after 20 cycles is 91.4%. This method is simple and effective for preparing cathode materials for lithium batteries.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Daocong Li, Zhenghe Peng, Wenyong Guo, Yunhong Zhou,