Electrochemical performance of nanocomposite LiMnPO4/C cathode materials for lithium batteries |
| |
Authors: | Zhumabay Bakenov Izumi Taniguchi |
| |
Institution: | Department of Chemical Engineering, Tokyo Institute of Technology, 12-1, Ookayama-2, Meguro-ku, Tokyo 152-8550, Japan |
| |
Abstract: | A LiMnPO4/C composite cathode was prepared by a combination of spray pyrolysis and wet ball milling. The cathode showed stable performance at various cutoff voltages up to 4.9 V. The cutoff voltage increase up to 4.9 V allowed the achievement of a high discharge capacity in galvanostatic charge–discharge tests. The discharge capacities of 153 mAh g?1 at 0.05 C and 149 mAh g?1 at 0.1 C were achieved at room temperature; the trickle-mode discharge capacities at room temperature were 132, 120 and 91 mAh g?1 at 0.1, 1 and 5 C discharge rates, respectively. The cell exhibited a good rate capability in the galvanostatic cycling up to 5 C discharge rates at both ambient temperature and 50 °C. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|