Preparation method of LaNiO submicron microsphere electrode material with hollow structure

The invention relates to a preparation method of an LaNiO submicron microsphere electrode material with a hollow structure. The method comprises the steps as follows: La(NO ) .9H O and Ni(NO ) .6H O are dissolved into isopropanol at the molar ratio of 1 to (1-0.8) and stirred to form a transparent solution; glycerin is added until the volume ratio of the glycerin to the isopropanol is 1 to 4; the solution is stirred to form a homogeneous suspension; the solution is enclosed into a reaction kettle for reaction at a reaction temperature of 120-250 DEG C for 6 hours; the solution is centrifuged and centrifugally washed with ethanol for 3-4 times; the product is put into an oven at 70 DEG C for drying for 12 hours or more; the heating rate of the obtained reaction product is 1 DEG C/min; the thermal treatment temperature is 550-650 DEG C; the thermal treatment time is 6-10 hours; and the product is fabricated into an electrode by a sheet driving method. The specific capacity of the LaNiO submicron microsphere ele