Performance and safety characteristics of high shock and vibration resistant cells

Lithium batteries have emerged as the power source of choice for many industrial applications requiring high reliability and tolerance to extreme environmental conditions. The measurement-while-drilling industry, in which high temperature and mechanical stress are encountered, presents this type of challenge. Lithium/thionyl chloride cells employing unique construction techniques have been developed to meet the demands of this application. Extensive safety characterization has been performed under both electrical and mechanical abuse conditions. Discharge analysis over a wide range of temperatures and discharge rates has confirmed that the MWD cell will function as a safe and effective power source in MWD applications