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NASA develops solid-state batteries for extreme lunar temperatures
Key points
- NASA's SPEARS project develops solid-state batteries.
- Batteries designed for lunar temperatures (-200°C to 100°C).
- Uses solid ceramic or polymer electrolytes.
- Intended for future Artemis missions.
Developing Resilient Lunar Batteries
NASA is working on a project called Solid Power for Extreme Environment Adaptability and Resilience in Space (SPEARS) to create batteries capable of operating in the Moon's harsh thermal environment. This initiative aims to provide power solutions for upcoming lunar campaigns, including the Artemis missions.
Addressing Temperature Extremes
The Moon experiences significant temperature swings, with daytime highs reaching 100°C (212°F) and nighttime lows at the southern pole plummeting to -200°C (-328°F). Standard lithium-ion batteries, which rely on liquid electrolytes, are susceptible to damage from freezing and do not function effectively at these extreme temperatures.
Solid-State Technology
The SPEARS project focuses on developing batteries that utilize a solid ceramic or polymer material as the electrolyte, replacing the liquid found in conventional batteries. While these solid-state batteries still require some warming to operate, they have demonstrated resilience against extreme cold without sustaining damage. They also necessitate less energy-intensive thermal management systems compared to their lithium-ion counterparts.
Future Applications
The primary goal for these batteries is to power equipment during lunar missions. The technology developed for the Moon's dramatic climates could potentially find applications beyond space, including powering devices on Earth.
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Reporting from
NASA's SPEARS project is developing solid-state batteries that can withstand the Moon's extreme temperature fluctuations, from 100°C to -200°C. These batteries use solid ceramic or polymer electrolytes, offering a more resilient power source for future Artemis missions compared to conventional lithium-ion batteries.