Preparation and application of Silicon carbon nanotube composite anode MATERIAL for LITHIUM battery and PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC. The organic carbon source and nano silicon were mixed and stirred evenly according to the mass ratio of (0.4 ~ 9):1, then the catalyst was added to get the mixed slurry, and then the precursor was obtained by closed-cycle spray drying. The obtained precursor was kept warm at 300 ~ 700℃ for 1 ~ 5h, and the sample was obtained
The samples were then put into a tube furnace and heated to 500 ~ 900℃ under the mixed atmosphere of gaseous organic carbon source, N,Ar, and kept warm for 0.5 ~ 3h. After natural cooling, the silicon carbon nanotube composite anode material for lithium batteries was obtained. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC Lithium battery Silicon carbon nanotube composite anode material has excellent electrochemical performance.
The first charge and discharge efficiency is as high as 2000mAh/g or more, and the reversible specific capacity of 1100mAh/g or so is still maintained after cycling for 50 weeks, with high specific capacity and good cycling performance MAGNETIC successfully solves the problems of low first efficiency, large irreversible capacity loss and poor conductivity of silicon in the actual application of preparing the negative electrode of lithium-ion batteries.
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