Metal-air batteries having improved air access valves

Details Metal-air batteries having improved air access valves Metal-air batteries having improved air access valves

1994-09-22

1996-09-10

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

429 27, 429 38, 429 82, 429 96, 429 99, 429218, 429229, H01M 200

Patent

active

055544525

ABSTRACT:
A prismatic metal-air battery is provided for having at least one prismatic metal-air cell received in a cell cavity of a prismatic casing. The casing comprises a wall portion which defines a surface. The wall portion has at least one opening in communication with the cell cavity which is adapted to allow the passage of air into the cell cavity. The casing also includes a valve member having a surface bearing on the wall portion surface. The valve member also has at least one opening therein. The wall portion surface and the valve member surface are adapted to allow movement of the valve member across the wall portion surface between a closed position, in which the valve member opening does not overlap with the wall portion opening, and an open position, in which the valve member opening and wall portion opening at least partially overlap. Importantly, the casing also includes means for providing an attractive force between the wall portion and the valve member.

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