The study of zirconium vanadate as a cathode material for lithium ion batteries |
| |
| Authors: | Baohe Yuan Lilei Zhang Xianghong Ge Heng Qi Qi Xu Lulu Chen Erjun Liang Baojun Li Juan Guo |
| |
| Institution: | North China University of Water Resources and Electric Power, Zhengzhou 450011 China ; Henan Institute of Science and Techenology, Xinxiang 453000 China ; Zhengzhou University, Zhengzhou 450052 China.; College of Science, Zhongyuan University of Technology, Zhengzhou 450007 China |
| |
| Abstract: | The electrochemical properties of ZrV2O7 (ZVO) and ZVO@C were investigated in lithium ion batteries. The first charge (or discharge) specific capacity of ZVO and ZVO@C are 279 mA h g−1, 392 mA h g−1, 208 mA h g−1 and 180 mA h g−1 for 0%, 3%, 5% and 9% of carbon, respectively. The capacity retention rates (with 0% 3%, 5% and 9% carbon content) are 33.0%, 52.5%, 56.4% and 76.1% after ten cycles, respectively. The low inner resistance relates to the good contact of the electrode rather than the high content of carbon, and the specific capacity retention rate increases with the increase of the carbon content.The carbon content in the electrode is not the only factor that determines the internal resistance. The high capacity of lithium ion batteries is related to high conductivity. The lattice is stable (expect for shrinkage) when Li ions insert into ZVO. |
| |
| Keywords: | |
|
|
