Lithium Battery Early Warning Fault Indication System

CAMX Power is proposing to develop a real-time early warning fault indication system for Navy Li-ion batteries to significantly enhance the safety of these batteries and hence allow them to be deployed in a wide range of applications. Our Phase I effort showed that the CAMX Power Early Warning Fault Detection Technology for Li-ion batteries is well suited to redundant implementation for added security for personnel, equipment, and missions. It further demonstrated high-performance implementations suitable for monitoring battery systems based on large numbers of cells such as UUV batteries. We demonstrated how our technology can implement the features of early stage internal short detection, combined with new capabilities of fail-open, fail-short, and dual-failure mode detection, and further demonstrated that our technology can identify failures in lithium-ion cells and battery packs before such faults grow to sufficient severity to trigger thermal runaway and potential cascading to other cells. CAMX Power is pleased to propose a Phase II Program that will build upon these early warning capabilities that can be rendered in robust implementations with built-in redundancies in sensing network, power sourcing, and data processing, for reliable battery monitoring and sensitive detection of internal faults in any cell of the battery.