磷酸铁锂的干燥方法

磷酸铁锂的干燥方法

问题有些模糊，如果是成品的话，常规鼓风烘箱烘干就可以了。

磷酸铁锂的制备方法，统计起来，有108种之多，但主要有固相法和液相法之分。目前，工业上比较成熟的制备方法以固相烧结为基础，通过调配原材料、烧结温度、烧结次数等内容，来制备铁锂。下面的这个英文材料是关于液相法的，有兴趣的话可以查一查看看。 the lifepo4 cathode material was prepared using a co-precipitation method in de-ionized water at room temperature. aqueous solution of (nh4)2fe (so4)2 _ 6h2o and h3po4 was added to aqueous solution of lioh. after stirring 10 min with blowing nitrogen gas into the solution through a tube, a thick mixture of a green color deposit and a solution was obtained, then washed with the de-ionized water and separated by the centrifugal separator. the deposit was dried in vacuum oven at 80 _c. after drying, the powder was mixed with 5 wt% high surface area carbon black and pressed into a disk-shaped pellet. the carbon black was added to enhance the electronic conductivity and reduce the particle size [12]. the pellet was put inside the beaker filled with granular activated carbon (aldrich, 20–40 mesh), and the beaker was placed inside the microwave oven (650 w). after a few minutes microwave irradiation the olivine phase lifepo4 was obtained without reductive gas flow. the basic idea of this heat treatment is that the activated carbon is the microwave absorber. if the activated carbon absorbs microwave, the activated carbon will heat the precursor rapidly and make reductive atmosphere by carbon oxidation reactionsreactions simultaneously. therefore, the heat treatment time can be very short and no additional inert or reductive gas is needed.

用双锥干燥机干燥，温度控制在100°左右。

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