Direct Methanol Fuel Cell

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Principles of fuel cell operation

A fuel cell that uses methanol (DMFC) generates electricity by repeating the following four-step.

Supply fuel

Add methanol solution fuel to the anode side (fuel side).

Separation into protons and electrons

The methanol solution separate into protons (H⁺) and electrons (e^-), along with carbon dioxide (CO₂).

Power generation

The electrons (e^-) are guided out of the fuel cell, forming an electric current. This current can be used to light up a light bulb, run mobile devices, etc. The current returns to the fuel cell cathode (air side).

Reaction with oxygen forms water

Protons (H⁺) and electrons (e^-) react with the air at the cathode to form humid air, which is exhausted from the system.