Nitrogen fixation unit, packaging method thereof and parallel matrix type nitrogen fixation device

The invention relates to the field of nitrogen fixation and ammonia synthesis, and provides a nitrogen fixation unit, a packaging method thereof and a parallel matrix type nitrogen fixation device aiming at the problem of lack of a miniaturized nitrogen fixation and ammonia synthesis device with high conversion efficiency. The nitrogen fixation unit comprises a cathode electrolysis chamber, an electrocatalyst, an anion exchange layer, a platinum sheet electrode and an anode electrolysis chamber which are adjacent in sequence, the cathode electrolysis chamber is provided with a cathode flow channel, and the cathode flow channel penetrates through the cathode electrolysis chamber; the anode electrolysis chamber is provided with an anode runner, and the anode runner penetrates through the anode electrolysis chamber; and the inner diameters of the cathode runner and the anode runner are both less than 1.0 mm. The single nitrogen fixation devices are sequentially connected in parallel and fixed to form the paralle