As substitutes for graphite, the negative electrode material commonly used in Li-ion batteries, hydrides have the potential to overcome both safety and performance limits of the current state-of-the-art Li-ion cells. Hydrides can operate through a conversion process proved for some interstitial hydrides like MgH 2 : M x A y +nLi= xM+yLi m A, where m=n/y. Even if far from optimization, outstanding performances were observed, drawing the attention on the whole hydride family. Looking for high capacity systems, lightweight complex metal hydrides, as borohydrides, deserve consideration. Capacities in the order of 2000-4000 mAh/g can be theoretically expected thanks to the very low formula unit weight. Although the potential technological impact of these materials can lead to major breakthroughs in Li-ion batteries, this new research field requires to tackle fundamental issues that are completely unexplored. Our preliminary findings on the incorporation of borohydrides will be here presented.

Electrochemical activity of lightweight borohydrides in lithium cells / Farina, Luca; Munao', David; Silvestri, Laura; Panero, Stefania; Meggiolaro, Daniele; Brutti, Sergio; La Barbera, A.; Reale, Priscilla. - (2015), pp. 1827-1832. ((Intervento presentato al convegno 2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC) tenutosi a Roma [10.1109/EEEIC.2015.7165450].

Electrochemical activity of lightweight borohydrides in lithium cells

FARINA, LUCA;MUNAO', DAVID;SILVESTRI, LAURA;PANERO, Stefania;MEGGIOLARO, DANIELE;BRUTTI, Sergio;REALE, Priscilla
2015

Abstract

As substitutes for graphite, the negative electrode material commonly used in Li-ion batteries, hydrides have the potential to overcome both safety and performance limits of the current state-of-the-art Li-ion cells. Hydrides can operate through a conversion process proved for some interstitial hydrides like MgH 2 : M x A y +nLi= xM+yLi m A, where m=n/y. Even if far from optimization, outstanding performances were observed, drawing the attention on the whole hydride family. Looking for high capacity systems, lightweight complex metal hydrides, as borohydrides, deserve consideration. Capacities in the order of 2000-4000 mAh/g can be theoretically expected thanks to the very low formula unit weight. Although the potential technological impact of these materials can lead to major breakthroughs in Li-ion batteries, this new research field requires to tackle fundamental issues that are completely unexplored. Our preliminary findings on the incorporation of borohydrides will be here presented.
2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC)
borohydrides; conversion reactions; lithium ion batteries; negative electrodes; electrical and electronic engineering; energy engineering and power technology
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Electrochemical activity of lightweight borohydrides in lithium cells / Farina, Luca; Munao', David; Silvestri, Laura; Panero, Stefania; Meggiolaro, Daniele; Brutti, Sergio; La Barbera, A.; Reale, Priscilla. - (2015), pp. 1827-1832. ((Intervento presentato al convegno 2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC) tenutosi a Roma [10.1109/EEEIC.2015.7165450].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/831705
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