A report describes an experimental study of the low-temperature electrical characteristics of commercial Li/MnO2, Li/CFx, Li/SO2, Li/SOCl2, and Li/BCX primary electrochemical cells. These high-energy-density cells are under consideration for use as lightweight, compact electric-power sources for scientific instruments in terrestrial polar regions and on Mars, where they could be called upon to operate at temperatures as low as 85 °C. The experiments, performed at temperatures down to - 100 °C, included steady-state current-vs.-voltage measurements during discharges with various increments of load resistance from 105 down to 10 Ω, complete discharge tests, and ac-impedance measurements.

This work was done by Frank Deligiannis, Harvey Frank, Evan Davies, and Ratnakumar Bugga of Caltech for NASA's Jet Propulsion Laboratory. NPO-20352

This Brief includes a Technical Support Package (TSP).
Lithuim-based primary cells for low-temperature operation

(reference NPO20352) is currently available for download from the TSP library.

Don't have an account? Sign up here.

NASA Tech Briefs Magazine

This article first appeared in the September, 1999 issue of NASA Tech Briefs Magazine.

Read more articles from the archives here.