Volumetric energy densities of the LCCM (Low Cost Competent Munition) thermal battery were increased by 25% over those of a previously miniaturized benchmark LCCM battery primarily by using improved battery construction and thermal management techniques (1,2). Experimental results and calculations indicate that the LCCM benchmark battery thermal lifetimes can be increased by 200% over the original benchmark value of 90 s, and that the volumetric energy density can be increased ...
Today's advanced gun-fired munitions require power sources with increased power and energy densities, all in a smaller package. US Army Armament Research Development & Engineering Center (ARDEC) has developed innovative power sources that offer a viable tactical solution for military applications and address the power life cycle of smart munitions. Novel power sources for advanced munitions were developed at ARDEC under an Army Technology Objective (ATO) titled Fuze and Power ...
Nano-layered Al-Ni bimetallic foils are materials capable of self-propagation with either an external thermal or electrical stimuli. A study was performed to investigate the feasibility of using these materials as an alternative heat source for thermal batteries. Properties studied were flame front propagation velocity (both in absolute terms and in relation to that in the heat paper), ignitibility, heat of reaction, and electrical resistance. Additionally, two-cell and four-cell prototype batteries ...
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