Development of Long Life Zinc-Oxygen Cells
NAVAL ORDNANCE LAB WHITE OAK MD
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The feasibility of using zinc-oxygen batteries for long-term discharges was investigated with the objective of attaining a one-year discharge lifetime and a five-year storage lifetime at uncontrolled temperatures. Zinc and oxygen electrodes were developed and used to construct zinc-oxygen cells for discharge testing. Cell lifetime was limited by premature oxidation of the zinc electrode due to corrosive chemical reactions set up by the nickel. The five- year storage requirement dictates the use of a reserve configuration with electrolyte kept in individual cell reservoirs during storage. Preliminary designs of the electrolyte storage and activation systems were done based on the electrode and cell designs developed.
- Electrochemical Energy Storage