80. Battery Technology Used in Outer Space Could Be a Gamechanger on Earth

Battery Technology Used in Outer Space Could Be a Gamechanger on Earth Lithium-ion has become the dominant battery technology used in energy storage applications around the world, but that doesn’t mean it’s the only, or even the best, technology available. Many companies are working on different battery chemistries that could provide safer, longer-lasting, and ultimately more cost-effective options. One alternative that has gotten little exposure until now is a battery chemistry with a 30-plus-year history of successful operation. It’s a metal-hydrogen battery, which has been used by NASA on space missions, including in the Hubble Space Telescope, the Mars Curiosity rover, and the International Space Station. “[The battery was] designed for a use case where these aerospace satellites and so forth needed a battery that would withstand the harsh climate of outer space, meaning super high temperatures, super low temperatures, and then have basically an infinite cycle life and require no maintenance,” Jorg Heinemann, CEO of EnerVenue, said as a guest on The POWER Podcast. “They worked very successfully with over 30,000 cycles—30,000 cycles is like charging the battery and discharging it three times per day for 30 years,” he said. For the sake of comparison, Heinemann said the longest lasting lithium-ion batteries can handle about 3,000 cycles, about one-tenth the cycle life. The metal-hydrogen battery contains no toxic materials, and unlike lithium-ion technology, it has no fire risk. “There are no safety issues. It’s a really safe device. There’s no thermal runaway risk, which is the primary concern with lithium-ion. Our battery operates in a very broad—what I call a ‘happy’—temperature range,” Heinemann said. Specifically, EnerVenue’s battery has been proven to operate reliably in ambient temperatures from –40F to +140F. That means, whether in artic or desert conditions, it doesn’t require large-scale heating and air conditioning systems, which can be expensive and maintenance-intensive. Cost has been the main rea