Meishen Technology Company
Nanometer
magnesium oxide is a new type of nanoparticle material with a white appearance,
high purity, large specific surface area, and composed of very fine grains with
good dispersion and relative density of about 3.58 (25?).
Melting point 2852?, boiling point 3600?. Insoluble in water.
Nanoscale magnesium
oxide has obvious small size effect, surface effect, quantum size effect and
macroscopic tunneling effect. After modified treatment, there is no
agglomeration phenomenon. It has many specific functions and important
application value in optical, catalytic, magnetic, mechanical, chemical and
other aspects.
Technical indicators:
Project indicators
Vk-mg30d Magnesium oxide % 99.9 Diameter: 30nm calcium PPM <3 Chloride PPM
< 3 PPM iron & lt<3 Burning loss %, & LT< 0.3 specific surface
m/g 60-100
Application
characteristics in lithium batteries:
1. Application in
lithium battery
By adding an
appropriate amount of nanometer magnesium oxide to the anode material of
lithium ion battery, the anode material obtained has a reversible discharge
capacity greater than 140mAh/g and good cycling performance.
Use in positive
electrode materials can improve the conductivity, recommended additions of
0.3-0.5%.
2. Application of
zinc-Nickel battery
The addition of magnesium oxide to the zinc
negative active substance by physical mixing method can reduce the polarization
of charge and discharge, reduce the internal resistance in the late cycle,
improve the utilization ratio of the negative plate active substance, and
extend the cycle life of the battery. The appropriate addition amount of
magnesium oxide is 1.0%wt, and the addition amount should not exceed 2.0%.