| 流变相法制备LiNi0.5Mn1.5O4锂离子电池正极材料及其电化学性质 |
| Preparation and Electrochemical Characterization of LiNi0.5Mn1.5O4 Positive Electrode for Lithium Ion Batteries by Rheological Method |
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| 摘要: |
| 关键词: 锂离子电池 LiNi0.5Mn1.5O4 正极材料 流变相法 |
| 基金项目: |
| Abstract: LiNi0.5Mn1.5O4 was prepared by rheological method using CH3COOLi, Ni(CH3COO)2 and Mn(CH3COO)2 as raw materials. XRD and SEM results show that LiNi0.5Mn1.5O4 synthesized at 850 ℃ has cubic spinel structure with clearly defined shape and particle size of 0.2～0.4 μm. Electrochemical tests show that the LiNi0.5Mn1.5O4 presents a plateau near 4.7 V and delivers the maximum discharge capacity of 140.5 mAh·g-1. After 100 cycles, the capacity loss per cycle was only 0.015% discharged at 0.2C and the capacity retention was more than 76.3% discharged at 2.0C at room temperature and the capacity loss per cycle was only 0.32% discharged at 0.2C at 55 ℃. |
| Keywords: lithium ionic battery LiNi0.5Mn1.5O4 cathode rheological method |
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| 摘要点击次数: 1400 |
| 全文下载次数: 1947 |
| 何则强,熊利芝,吴显明,刘文萍,陈上,黄可龙.流变相法制备LiNi0.5Mn1.5O4锂离子电池正极材料及其电化学性质[J].无机化学学报,2007,23(5):875-878. |
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