Using modern battery systems in light duty mining vehicles

Sodium metal halide (NaMx) batteries are an emerging technology, with performance and longevity comparable to that of lithium ion (Li-ion) batteries, yet, require less capital. NaMx technology has been considered for mass transit and industrial applications to date. Mining vehicles are most commonly powered by diesel engines, despite their reputation for air pollution and inefficiency. These diesel powerhouses can be replaced by efficient, clean batteries while maintaining economic viability. In underground mining, locomotives and load-haul-dump are the most common light duty (<500HP) equipment used in room and pillar, and longwall mining methods to advance and prepare the mining site. PbA batteries are commonly used in battery-powered mining equipment and will serve as the control. Replacing these batteries with more energy dense NaMx or Li-ion batteries will increase operating time, therefore increasing, mine productivity.