Biosynthesis method of high-performance olivine type manganese-based phosphate positive electrode material
An olivine-type manganese-based phosphate, cathode material technology, applied in nanotechnology for materials and surface science, cathode electrodes, phosphorus compounds, etc., can solve the problems of easy bulk agglomeration, strict control of synthesis conditions, and danger.
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[0027]1. Weigh a quality of yeast dry powder (25 g / L) to the glucose solution, cultured for 40 min at 50 ° C, after washing alcohol, remove the metabolite impurities of yeast and the remaining glucose, obtained Yeast solution;
[0028]2. Weigh the MNCL of a certain quality2FECL3(Molar ratio 8: 2) was added to the yeast solution after washing alcohol, and the water bath was stirred at 50 ° C for 5 h, and then, we will weigh the corresponding stoichiometric ratio (NH4)2HPO4, In the mixed solution, stirring was stirred for 1.5 h. CH3The COONA solution regulates the pH to 6 of the above mixed solution, and the mixed solution is allowed to stand for 12 h for biological mineralization;
[0029]3. Centrifugation of the above mixed solution is washed with water, and then the yeast cell mineralized phosphate precursor is obtained.
[0030]4. Press 1: 1.03 (p: li) molar ratio of phosphate precursors and Li2CO3Mix ball mill, then bake at 700 ° C in a nitrogen atmosphere to finally obtain...
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