| 摘要 |
<p>Examples of metal air batteries are described which may include an anode, in contact with an electrolyte, a porous matrix adjacent to the electrolyte, and a gas-permeable polymer membrane disposed on an exterior surface of the porous matrix. The gas-permeable membrane may be configured to allow a first gas to pass through the membrane while preventing other gases or liquids from passing through the membrane. Methods as described herein may include providing a metal anode in contact with an electrolyte, providing a porous cathode adjacent to the electrolyte, and enclosing an exterior portion of the porous cathode with a selectively permeable membrane, such that in use, oxygen may be allowed to pass through the gas-permeable membrane in a direction from the cathode to the anode, while water is prevented from passing through the gas-permeable membrane to prevent leakage and/or evaporation of the battery electrolyte.</p> |
