MAGNESIUM FUEL CELL
Provided is a magnesium fuel cell which is capable of stably supplying electric current over a long period of time, while preventing self discharge of a negative electrode material. A magnesium fuel cell (10) is provided with a negative electrode material (12) that is composed of a magnesium alloy and an electrolyte solution (18) into which magnesium ions are dissolved from the negative electrode material (12). The magnesium alloy contains aluminum and calcium. The electrolyte solution (18) is preferably an aqueous sodium chloride solution, an aqueous sodium hydroxide solution, an aqueous sodium hydrogen carbonate solution, an aqueous sodium percarbonate solution, or a mixture of two or more of these solutions.