Details

Autor(en) / Beteiligte

• Vieira, Adriana P
• Williamson, Kyran
• Humphries, Terry D
• Paskevicius, Mark
• Buckley, Craig E

Titel

A new strontium based reactive carbonate composite for thermochemical energy storage

Ist Teil von

• Journal of materials chemistry. A, Materials for energy and sustainability, 2021-09, Vol.9 (36), p.2585-2594

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Stable power generation from renewable energy requires the development of new materials that can be used for energy storage. A new reactive carbonate composite (RCC) based on SrCO 3 is proposed as a material with high energy density for thermochemical energy storage. SrCO 3 -SrSiO 3 can promote the thermodynamic destabilisation of SrCO 3 , making its operating temperature (700 °C) more suitable for concentrated solar thermal power applications. Utilising a eutectic mixture of salts as a catalyst, the reversible carbonation reaction achieves cycle stability of ∼80% of efficiency over multiple cycles. The high volumetric (1878 MJ m −3 ) and gravimetric energy density (500 kJ kg −1 ) of the RCC allows a compact thermal battery to be developed. Additionally, the low cost of SrCO 3 makes the RCC a highly competitive alternative energy storage material in terms of cost and efficiency when compared to existing molten salt based energy storage technology. A new reactive carbonate composite based on SrCO 3 is presented as a material with high energy density for thermochemical energy storage, being an excellent material to meet the requirement for stable power generation from renewable sources.