Air cathode battery using zinc slurry anode with carbon additive

摘要

An air cathode battery is provided that uses a zinc slurry anode with carbon additives. The battery is made from an air cathode and a zinc slurry anode. The zinc slurry anode includes zinc particles, an alkaline electrolyte, with a complexing agent and carbon additives in the alkaline electrolyte. A water permeable ion-exchange membrane and electrolyte chamber separate the zinc slurry from the air cathode. The carbon additives may, for example, be graphite, carbon fiber, carbon black, or carbon nanoparticles. The proportion of carbon additives to zinc is in the range of 2.5 to 10% by weight. The proportion of alkaline electrolyte in the zinc slurry is in the range of 50 to 80% by volume.

主权项

1. An air cathode battery using a zinc slurry anode with carbon additives, the battery comprising:
an air cathode; the zinc slurry anode comprising:
a current collector;zinc particles;an alkaline electrolyte; the carbon additives and a complexing agent in the alkaline electrolyte; an electrolyte chamber, comprising the alkaline electrolyte, adjacent the air cathode; a water permeable ion-exchange membrane (IEM) separating the zinc slurry anode from the electrolyte chamber; wherein the zinc slurry, in a battery charged state, has an electrical resistance of less than 10 ohms and a zinc molar concentration of greater than 15 moles per liter; wherein the proportion of carbon additives to zinc is in a range of 2.5 to 10% by weight; and wherein the proportion of alkaline electrolyte in the zinc slurry is in a range of 50 to 80% by volume.