Dry Electrode Laboratory/Pilot/Production Line /Technology/Preparation Solution

The difference between dry electrode batteries and traditional batteries is mainly reflected in the manufacturing process of the electrode plates. Traditional lithium battery manufacturing involves mixing solvent NMP with negative or positive electrode powder with adhesive materials, then coating the slurry on the electrode collector and drying it. Dry electrode technology does not use solvents, but mixes a small amount (about 5-8%) of fine powder PTFE adhesive with positive electrode powder, and then forms a thin electrode material strip through an extruder. Finally, the extruded electrode material strip is laminated onto a metal foil collector to form a finished electrode.

1) High compaction density makes it more compatible with high nickel battery material systems. 

The current battery material system of high nickel positive electrode+silicon carbon negative electrode is one of the mainstream directions for the development of lithium batteries.

In terms of positive electrodes, under the traditional production conditions of lithium batteries, high nickel positive electrodes have poor thermal stability, unstable surface structure, and nickel elements are alkaline and easily absorb moisture. The use of dry electrodes can effectively alleviate the above problems.