Method for synthesizing lithium titanate electrode material
A synthesis method and electrode material technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of poor rate performance and achieve high specific capacity, good rate performance, and long cycle life
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Embodiment 1
[0018] Example 1: In the stirring state, use deionized water to prepare a cetyltrimethylammonium bromide (CTAB) solution with a concentration of 13g / L, and then add the corresponding mass of polyoxyethylene-polyoxypropylene-polyethylene oxide according to the template content of 10wt%. Oxyethylene, stirred for 2 hours to obtain solution A; lithium acetate solution B with a concentration of 13g / L was prepared with deionized water; tetrabutyl titanate was gradually added to solution A under stirring to obtain solution C, and then solution C Add solution B and stir for 3 hours to obtain solution D; put the obtained solution D into a hydrothermal reaction tank, let it stand at 180°C for 48 hours, then dry the obtained product to obtain a mixture E; put the obtained mixture E in Treat at 700°C for 6 hours to obtain lithium titanate electrode material. The surface morphology of the lithium titanate product is as follows figure 1 As shown, it can be seen that the lithium titanate ...
Embodiment 2
[0019] Example 2: Prepare a solution of 2-ethylhexyl succinate sodium sulfonate (AOT) with a concentration of 5g / L in deionized water under stirring, and then add the corresponding mass of styrene-butadiene copolymer according to the template content of 5wt%. , stirred for 1 hour to obtain solution A; use deionized water to configure lithium hydroxide solution B with a concentration of 8g / L; add titanium tetrachloride dropwise to solution A under stirring to obtain solution C, and then add solution B to In solution C, stir for 5 hours to obtain solution D; put the obtained solution D into a hydrothermal reaction tank, set aside for 72 hours at a temperature of 120 ° C, and then dry the obtained product to obtain a mixture E; E was treated at 800°C for 3 hours to obtain lithium titanate electrode material. The particle size of the lithium titanate product is 200-800nm. The prepared lithium titanate material, conductive carbon black, and PVDF are used to make lithium titanate...
Embodiment 3
[0020] Example 3: In the stirring state, use deionized water to prepare a solution of octadecyltrimethylammonium chloride with a concentration of 8g / L, and then add the corresponding quality of the composite template polyoxyethylene-polyoxypropylene-polyoxygen Ethylene and polystyrene (mass ratio: 1:1), stirred for 3 hours to obtain solution A; use deionized water to prepare lithium oxalate solution B with a concentration of 5g / L; gradually add titanium nitrate to solution A while stirring, To obtain solution C, add solution B to solution C, and stir for 6 hours to obtain solution D; put the obtained solution D into a hydrothermal reaction tank, set aside for 24 hours at a temperature of 200 ° C, and then dry the obtained product, A mixture E is obtained; the obtained mixture E is treated at 400° C. for 6 hours to obtain a lithium titanate electrode material. The particle size of the lithium titanate product is 10-200nm. The prepared lithium titanate material, conductive ca...
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