钛掺杂的非化学计量LiFePO4的合成与电化学性能研究(英文) |
Synthesis and Electrochemical Properties of Ti-doped Nonstoichiometric LiFePO4 for Lithium-ion Battery Application |
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摘要: |
关键词: LiFePO4 电化学性能 钛掺杂 非化学计量 |
基金项目: |
Abstract: Ti-doped nonstoichiometric LiFePO4, i.e. Li0.95Fe0.95Ti0.05PO4 was synthesized by solid-state reaction method. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscope (SEM) and electrochemical charge and discharge tests were used to characterize the as-prepared sample. The results indicate that Li0.95Fe0.95Ti0.05PO4 used as the cathode material for lithium-ion battery exhibits improved cyclic stability and rate capability than those of undoped LiFePO4. 150 mAh·g-1 of discharge capacity was achieved at 0.1 C (17 mA ·g-1) at room temperature. |
Keywords: LiFePO4 electrochemical properties Ti-doping nonstoichiometric |
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孙玉恒,刘东强,吁霁,刘兴泉.钛掺杂的非化学计量LiFePO4的合成与电化学性能研究(英文)[J].无机化学学报,2006,22(9):1711-1714. |
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