This paper presents a novel method for high energy density storage using in-situ hydrogen production from the chemical reaction between aluminum and water at room temperature. It further demonstrates the application in PEM fuel cells. The reaction between aluminum and water is possible due to a special thermo-chemical activation process developed at the Technion. Only a small fraction of activator is used (typically 2.5%) demonstrating high reaction rates. The aluminum and water reaction yields about 11% hydrogen based on the aluminum mass. When applied in PEM fuel cells it is equivalent to electric energy storage of about 2.2 kWh per kg aluminum.
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