| 摘要 |
A metal-air electrochemical cell (10) comprises an anode (12) a cathode (14) and a seal (16); the electrodes (12,14) include cans (36,20), and the cathode can (20) has one or more air entry ports (34) located in its bottom (22) to provide for entry of oxygen-containing air into the cathode can; oxygen participates in the chemical reaction whereby the cell produces electrical energy. Multiple small air entry ports distributed over the bottom (22) of the cathode can (20), while not increasing the overall open area of the ports (34), results in an increase in the ratio of the cell limiting current to the rate at which moisture is lost from the cell. <IMAGE> |
