Fuel cell stack capable of discharging two-phase products at different ports

• Main Authors: CHONG FAZHENG, WANG RUI, HAO MINGSHENG, LI YINSHI
• Format: Patent
• Language: Chinese; English
• Published: 13.10.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a fuel cell stack device capable of discharging two-phase products at different ports, a gas-liquid mixture generated after a reaction in a stack is not directly discharged out of a cell, but is uniformly collected into a gas-liquid separation cavity arranged on a flow field plate, and two-phase fluid is spontaneously layered in the cavity under the action of gravity, so that formed gas is on the upper part, and the gas-liquid mixture is separated from the gas-liquid separation cavity. And the liquid is in a lower state. And the liquid on the lower layer flows into the liquid discharge cavity through the gas-liquid communication cavity without the partition. The upper-layer gas cannot flow to the liquid outlet due to the partition between the gas-liquid separation cavity and the liquid cavity, so that the upper-layer gas can only be discharged through the gas outlet in the top, and gas-liquid separation is realized. According to the structural design of the galvanic pile, the vertical