| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal air battery arranged to have a longer life by suppressing the interference with discharge by a discharge product, and to provide an aluminum air battery and a metal air battery which are arranged to prevent the evaporation of an electrolytic solution and have a longer life.SOLUTION: The metal air battery comprises: a negative electrode made of aluminum or an aluminum alloy, or magnesium or a magnesium alloy; an electrolytic solution; and an ion conductor provided between the negative electrode and the electrolytic solution to be in contact with the negative electrode. In the metal air battery, the ion conductor or a material having a dense structure formed from an air electrode catalyst material is disposed between the electrolytic solution and the air electrode, otherwise the air electrode per se is composed of an ion conductor or a dense structure formed by shaping a material used as an air electrode catalyst material. The structure like this can prevent the evaporation of the electrolytic solution, which makes the biggest problem of a metal-air battery, and allows a battery life to be made longer. |
