Boosting thermal energy storage with polyelectrolytes

https://techxplore.com/news/2023-11-boosting-thermal-energy-storage-polyelectrolytes.html

"dextran sulfate sodium improves thermal performance and stability of salt hydrate phase change materials... pure salt hydrate PCM cannot sustain up to 10 melt-freeze cycles, but with the additive, stability is retained after 150 cycles... better performing heat pumps"

Related: Fourth Power, a startup, receives $19 million for 1 MWh prototype liquid tin energy storage
https://interestingengineering.com/innovation/bill-gates-liquid-tin-energy