Corrosion and self discharge are the big problems for metal - air batteries. They typically self discharge in less than a month once they are activated. https

Corrosion and self discharge are the big problems for metal - air batteries. They typically self discharge in less than a month once they are activated. https://dspace.mit.edu/handle/1721.1/120466 https://dspace.mit.edu/handle/1721.1/120466