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Long Term Storage of Heat in Isomers

Chalmers University in Sweden has come up with a novel way of long-term (years) storing (solar) heat, namely in isomers.

– Discharge operating temperature: 63 C
– Storage capacity: 0.25 kWh/kg (2x Tesla Powerwall)
– 125 charge-discharge cycles without detoriation.

Researcher Moth-Poulsen thinks there is a lot of potential for improvement, like operating temperatures of 110 C.

[sciencealert.com] – Scientists Develop Liquid Fuel That Can Store The Sun’s Energy
[wiley.com] – Liquid Norbornadiene Photoswitches for Solar Energy Storage
[mynewsdesk.com] – Emissions-free energy system stores heat
[pubs.rsc.org] – Macroscopic heat release in a molecular solar thermal energy storage system
[wikipedia.org] – Isomer
[nbcnews.com] – Scientists bottle solar energy and turn it into liquid fuel
[wikipedia.org] – Norbornadiene
[wikipedia.org] – Quadricyclane

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