Reactive Metals as Energy Storage and Carrier Media

Ersoy, Hüseyin; Baumann, Manuel; Weil, Marcel; Barelli, Linda; Passerini, Stefano

doi:10.1002/9781119817741.ch2

Cited by 1 publication

(2 citation statements)

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“…Then, a first sustainability screening of Al properties has been realized. [20] These studies provided promising results regarding technical as well as techno-economic performance and sustainability aspects (criticality, carbon footprint). Thus, in a further step, the demand for long-term storage that could be covered by the Al-steam oxidation is analyzed to understand the overall potential of the Al-steam oxidation concept.…”

Section: Methodsmentioning

confidence: 98%

“…As mentioned before, the Al-steam oxidation shows promising theoretical results for long-term energy storage, considering some preconditions (e.g., circularity of the Al, use of renewables). Details on the theoretical techno-economic performance of the system and the sustainability of Al can be found in, [2,9,20] The remaining question though, is if there is the demand for this kind of seasonal energy storage solution, and where it is required. Bearing that in mind, seasonal and geographical variabilities of solar and wind power generation are considered with respect to the corresponding annual average values separately for Northern, Central, Eastern, and Southern Europe.…”

Section: Scenario-based Seasonal Volumetric Energy Storage Requirementsmentioning

confidence: 99%

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Potential of Aluminum as a Metal Fuel for Supporting EU Long‐Term Energy Storage Needs

Barelli,

Trombetti,

Zhang

et al. 2024

Adv Materials Technologies

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The EU's energy transition necessitates availability of green energy carriers with high volumetric energy densities for long‐term energy storage (ES) needs. A fully decarbonized scenario considering renewable energy availability is analyzed underpinning the need for such carriers. Considering the shortcomings of Power‐to‐X technologies in terms of efficiency and low volumetric density, Aluminum (Al) is identified as a potential alternative showing significantly high volumetric energy densities (23.5 kWh L−1). In this paper, an Al‐based long‐term ES concept is investigated, taking advantage of the inherent recycling of the active species (i.e., Al2O3 to Al) coupling decarbonized Hall–Héroult process with an Al‐steam oxidation for simultaneous hydrogen (H2) and heat generation. This work demonstrates an innovative lab‐scale fine Al powder‐steam oxidation process at ≈900 °C without use of catalysts or additives, exploiting alumina as inert material. Conducted SEM‐EDX analysis on oxidized Al provides supporting evidence in favor of employed oxidation pathway, hindering tendency of aluminum oxide (Al2O3) clumping and enabling direct use of oxides in the smelting process for fully recyclability. Moreover, outcomes of XRD analyses are presented to validate the measured total H2 yields.

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Section: Methodsmentioning

confidence: 98%

Section: Scenario-based Seasonal Volumetric Energy Storage Requirementsmentioning

confidence: 99%