Storing large amounts of thermal energy by integrating latent, thermochemical and sensible energy storage modes

https://www.nature.com/articles/s41586-024-08214-1

"boric/ succinic acid eutectic mixture transitions at around 150°C, with record high 394 ± 5% J g−1 reversible thermal energy uptake, by melting boric acid component... simultaneously undergoes dehydration into metaboric acid/ water, dissolving into the liquid readily rehydrating re-forming boric acid on cooling... thermal stability >1K heating/ cooling cycles... very low cost, eco-friendly/ sustainable... high energy density/ capacity/ efficiency"

Related: Brenmiller Energy's bGen ONE Thermal Storage: 50% Performance Gains at Half the Cost
https://www.businesswire.com/news/home/20250423326817/en/Brenmiller-Energy-Unveils-Technology-Roadmap-2030-Delivering-50-Performance-Gains-at-Half-the-Cost-for-Thermal-Energy-Storage