Novel hedgehog-like 5 V LiCoPO4 positive electrode material for rechargeable lithium battery
作者： Fei Wang , Jun Yang , Yanna NuLi , Jiulin Wang
DOI: 10.1016/J.JPOWSOUR.2011.01.055
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摘要: Abstract Hedgehog-like LiCoPO4 with hierarchical microstructures is first synthesized via a simple solvothermal process in water–benzyl alcohol mixed solvent at 200 °C. Morphology and crystalline structure of the samples are characterized by scanning electron microscope, transmission microscopy X-ray diffraction. The hedgehog-like size about 5–8 μm composed large numbers nanorods diameter ca. 40 nm length 1 μm, which coated carbon layer 8 nm thickness situ carbonization glucose during reaction. As 5 V positive electrode material for rechargeable lithium battery, delivers an initial discharge capacity 136 mAh g−1 0.1 C rate retains its 91% after 50 cycles, showing much better electrochemical performances than sub-micrometer conventional high-temperature solid-state
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