Methanol-Air Batteries.
Abstract
The methanol-air battery shows promise of meeting the operational requirements of low power equipments, such as sensors, mines, and similar equipments. While primarily designed to satisfy low level output requirements, the system is capable of supporting transient peak loads on a cyclical basis. Cells charged with 120 ml of anolyte, consisting of 6 M methanol in 11 M KOH, have operated for 2,230 hours under cyclic load drains of 50 mA for 13 minutes and 2 A for 1 second. One cell operated for more than 8,000 hours with periodic refilling of fresh anolyte, demonstrating the long serviceable life of the electrode components. Fuel utilization efficiencies as high as 84% have been obtained from cells charged with an anolyte solution of methanol in potassium hydroxide. Single cells charged with a fuel mixture of methanol and methyl formate in 5 M KOH operated satisfactorily under load at temperatures down to -40 C, with only a 30% decrease in voltage during the 2 A period of the cycle.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA035942
Entities
People
- John Perry Jr
Organizations
- United States Army Communications-Electronics Command