Tokyo, March 22 — In a groundbreaking technological development, Japan’s Atomic Energy Agency has unveiled the world’s first rechargeable battery powered by uranium, offering a novel way to repurpose radioactive waste while advancing energy innovation.
The prototype, which uses depleted uranium—a radioactive byproduct from nuclear fuel enrichment—has demonstrated stable performance with a voltage output of 1.3 volts during initial trials. While that voltage is comparable to conventional household batteries, the real significance lies in its potential to utilize vast amounts of radioactive waste for energy storage.
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Japan currently stores approximately 16,000 tons of depleted uranium, while global reserves are estimated to exceed 1.6 million tons. Traditionally considered a waste product with limited uses, depleted uranium now presents a new frontier in battery technology, according to officials at the agency.
Researchers say future plans involve scaling up the technology using redox flow mechanisms, which would enhance the battery’s capacity, lifespan, and adaptability for larger industrial applications. Unlike traditional lithium-ion batteries, redox flow batteries use liquid electrolytes and are known for their long operational life and safety advantages.
Despite the promising outlook, safety and regulatory concerns remain paramount. The uranium battery will be restricted to radiation-controlled environments, such as nuclear power plants and designated research facilities, to minimize any health or environmental risks associated with radioactive materials.
The development represents a major step toward sustainable nuclear waste management while positioning Japan as a leader in next-generation energy solutions. Experts believe this innovation could open new doors for countries with large uranium stockpiles and encourage further research into clean, efficient, and recyclable nuclear-based energy technologies.
Key Points:
Sustainable Innovation: The development marks a breakthrough in nuclear waste recycling and positions Japan as a leader in next-generation energy storage.
World’s First Uranium Battery: Japan’s Atomic Energy Agency has developed the first-ever rechargeable battery powered by depleted uranium.
Voltage Output: The prototype battery demonstrated a stable charge and discharge cycle with a voltage of 1.3V.
Repurposing Radioactive Waste: The technology utilizes depleted uranium, a byproduct of nuclear fuel enrichment, offering a new use for nuclear waste.
Massive Resource Potential: Japan has 16,000 tons of stored depleted uranium; globally, reserves exceed 1.6 million tons.
Future Expansion Plans: Researchers plan to scale up the technology using redox flow systems for enhanced capacity and industrial use.
Safety Restrictions: Due to radiation concerns, the battery will only be used in radiation-controlled areas like nuclear facilities.
