磷酸铁锂的制备方法/

网友 1

最佳答案

回答者:网友
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啊挥胶还误粮另础,通过调配原材料、烧结360问答温度、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-i和染执三唱策么望军维onized water at
room temperature. Aqueous solution of (N施见尽矿确洋H4)2Fe
(SO4)染长座肥2 _ 6H2O and H3PO4 was added to aqueous solution
of LiOH. Afte向题兰争吗按执滑河鱼r stirring 10 min with blowing
nitrogen gas into the solution through a tube, a thick
mixture of a green 命气协也即城现胜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 vac商宗协uum oven at 8带曲百谈推0 _C. After drying, the powder
was mixed with 5 w怎势布谁t% high surface area carbon black
and pressed into a disk-shaped pellet我抗浓流期理愿. The carbon black
was added to enhance the electronic conductivity and
reduce the particle size [12]. The pellet was put inside the
beaker filled wi务季动和尽th granular ac次沉般王买免绝力tivated carbon (Aldrich,
20–40 mesh), and the beaker was placed inside the microwave
oven (650 W). Afte既宜宽家r a few min展曲波utes micro本营突整钢防绝wave
irradiation the olivine phase LiFePO4 was obtained
without red液孔坐百乙班宣即继财力uctive gas flow. The basic idea of this heat
treatment is that the activated carbon is the mi普垂断硫程铁奏crowave
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.

我来回答