Accession Number : ADD013305

Title :   Lithium Battery Energy Monitor.

Descriptive Note : Patent, Filed 17 Jan 86, patented 15 Sep 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Johnson, Leopold J

Report Date : 15 Sep 1987

Pagination or Media Count : 6

Abstract : A lithium battery is provided with an energy monitor that continuously indicates the energy remaining in the battery. An electrolytic coulometer is connected in series with the and has a cantilevered cathode which increases its mass in proportion to the total amount of the cathode and hence its resonant frequency changes in proportion to the total current, a mechanical transducer in contact with the electrolytic coulometer causes the cantilevered cathode to resonate at different frequencies which is monitored to provide a continuous reading of remaining battery energy.

Descriptors :   *PATENTS, *ELECTRIC BATTERIES, *MONITORING, COULOMETERS, ELECTROLYSIS, ENERGY, LITHIUM, MECHANICAL PROPERTIES, READING, RESONANT FREQUENCY, TRANSDUCERS

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE