What is the internal structure of a fuel cell?

NINGBO, China - April 13, 2025 - PRLog -- A single cell consists of a membrane electrode assembly (MEA) and a bipolar plate (one side is the anode and the other side is the cathode). The voltage of each single cell is about 0.6V. The output power of a fuel cell (https://www.china-vet.com/hydrogen-fuel-cell-stack)  depends on its size. Using multiple single cells to stack and customize the surface area of the single cell can control the voltage and current to meet the various power requirements in life. For example, the voltage of VET ENERGY 100W hydrogen stack is 12V, and the number of single cells is 20.

Hydrogen fuel cells are usually stacked with multiple single cells. The anode of each single cell is connected to the cathode of the adjacent single cell to form a stack in series. After the stacking is completed, the two ends of the stack are respectively equipped with a collector plate and an insulating plate to achieve current collection and electrical isolation. The collector plate, as a conductive medium, is responsible for exporting the electrons of the battery cell and introducing them into the external circuit, while the insulating plate ensures the electrical safety and stable operation of the hydrogen stack.