In the production of the power battery due to the large volume, the power battery needs to be baked before the injection of the battery liquid, and at this time, the vacuum in the oven is lifted with nitrogen, that is, the baking time is filled with nitrogen, which can prevent high temperature oxidation, and increase and speed up the cooling rate, nitrogen can be used as gas protection. Through the nitrogen can also remove the oxygen in the solution to avoid oxygen participation in the electrode reaction, corrosion electrode inert gas, to maintain the stability of the electrolyte, no reaction, can not be mixed with oxygen and water vapor and so on.

Secondly, the lithium battery in the aluminum shell welding process, the welding temperature is high will cause the aluminum shell to turn yellow or black, the use of nitrogen protection can make the welded aluminum shell will not have black or yellow situation.

Nitrogen machine working principle:

PSA pressure swing adsorption principle is applied, air is used as raw material, oxygen molecules are smaller than nitrogen molecules, pressure through the micro-porous carbon molecular sieve, oxygen molecules are preferentially adsorbed, nitrogen through the molecular sieve gap into the enriched nitrogen buffer tank; A column of pressurized adsorption and enrichment of nitrogen, a column of decompression desorption molecular sieve regeneration, PLC microcomputer automatic control, the two columns work alternately to continuously produce high-purity nitrogen.

 Equipment features:

(1) Nitrogen production is convenient and fast:

Advanced technology, unique air flow distributor, make the air flow distribution more uniform, efficient use of carbon molecular sieve, about 20 minutes to provide qualified nitrogen.

(2) Easy to use:

Equipment structure is compact, the whole skid, occupying a small area without infrastructure investment, less investment, the field only need to connect the power supply to produce nitrogen.

(3) More economical than other nitrogen supply methods:

PSA process is a simple nitrogen production method, using air as raw material, energy consumption is only the electric energy consumed by the air compressor, with low operating cost, low energy consumption, high efficiency.

(4) Mechanical and electrical integration design to achieve automated operation:

Imported PLC control automatic operation, nitrogen flow pressure purity can be adjusted and real-time display, can achieve unattended.