Hydrogen production system combining solar energy and retired battery recycling

The invention discloses a hydrogen production system combining solar energy and retired battery recycling. The hydrogen production system comprises a solar power supply system, a classified electrolytic cell and a hydrogen storage module, the solar power supply system comprises a solar photovoltaic cell module, the solar photovoltaic cell module is connected with a voltage stabilization control module, and the voltage stabilization control module and the control system are both connected with a retired battery pack module; the classified electrolytic cell comprises electrodes and electrolyte, the decommissioned battery pack module is connected with the electrodes to supply power to the classified electrolytic cell, and the output power of the decommissioned battery pack module is controlled to be equal to the rated power of the classified electrolytic cell through the control system; the hydrogen storage module comprises a purification and pressurization module and a hydrogen storage tank, the purification an