South Korea’s Agency of Defense Development (ADD) has reportedly announced that it has developed the world’s first high-performance anode technology that is not only easy to make but can increase the capacity of thermal batteries, used in precision-guided weapon munitions, by up to 200%.
Thermal batteries, or liquid sodium batteries/molten salt batteries, use an electrolyte made with a mixture of either liquid salt or solid sodium that liquidizes when heated.
As molten salt batteries do not discharge naturally, they can be stored for many years, and based on these characteristics, thermal batteries are used in missiles, communication equipment, transport equipment, or any other weaponry.
The defense technology development agency stated that its team of researchers was able to develop a lithium-impregnated metal foam anode, or LIMFA, reducing production time and cost by melting lithium and impregnating it into a porous metal foam.
The agency added that the new three-dimensional structured anode technology will be applied towards making thermal batteries for guided missiles, torpedoes, and other precision-guided munitions. Researchers are also hoping for the application of the technology in the civil electronics sector, like mobile devices or electric vehicles (EVs).
South Korea’s precision-guided munitions (PGM) consist mainly of winged artillery shells that are able to accurately glide from high altitudes to their aims. As the winged shell does not have an external source of power, it makes use of shock-activated thermal batteries, with the shell’s launch providing the physical shock.
The agency had developed the shock-activated thermal battery earlier this month.
With this technology, on-board electronics of guided weapons will be granted more power and in turn would be able to perform more functions, while also staying connected for a longer time.
The GGAM (Gliding Guided Artillery Munition), jointly developed by the ADD and Poongsan, a South Korean munitions developer, can precisely reach its target from almost 100 km (62 miles) of distance.
Source credit: https://www.ajudaily.com/view/20220329101425003