EV Infrastructure 

Process layout

Water purification by means of a special filter. 

Compounds are mixed in a vacuum with a small amount of treated water in special mixers.

The prepared compounds are spread on both sides of a foil surface. The cathode compound is spread on aluminum foil which enters in reels, the anode compound is spread on copper foil. In the course of spreading, the spreaded anode and cathode compounds are dried (removal of excess water), and their adhesion with the foil surface is implemented.

Cathode and anode reels are split into two bands strips of equal width and are reeled on again forming “narrow” reels (of less width).

Splitted anode and cathode passes through the rollers to obtain the required smoothness and thickness.

Anode and cathode base electrodes are mechanically cut and are packaged for in-process float.

Each base electrode is sorted by its weight, and its group is defined.

Sorted anode and cathode are furnished one by one by means of a separator. A number of base electrodes in a stack depends on the type of accumulators.

Findings of the electrodes bores for placing bolts to join terminals.

The accumulator core is dried, and the dried core is set in a plastic case.

Each case with core/cores is covered and sealed.

The case with the core is exposed to vacuum drying once again.

Through a bore the electrolyte is filled up into the accumulator, the bore is welded hermetically.

 

The accumulators are exposed to cyclic charge-discharge with low current. Then accumulators are put on pallets and are transported for tests with large currents.

Each tested accumulator is marked with a laser bar-code, attached the certificate and packed in a transport container.

The final product is sent to a finished goods warehouse or to shipment, to a consumer.