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Open AccessArticle

Lightweight Borohydrides Electro-Activity in Lithium Cells

Chemistry Department, Sapienza University, Piazzale Aldo Moro 5, Rome 00185, Italy
Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche (ISC-CNR), via dei Taurini, Rome 00185, Italy
Dipartimento di Scienze, Università della Basilicata, v.le Ateneo Lucano 10, Potenza 85100, Italy
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, ENEA, Centro Ricerche Casaccia, via Anguillarese 301, Rome 00123, Italy
Authors to whom correspondence should be addressed.
Academic Editor: Izumi Taniguchi
Energies 2016, 9(4), 238;
Received: 13 January 2016 / Revised: 22 February 2016 / Accepted: 15 March 2016 / Published: 25 March 2016
As a substitute for graphite, the negative electrode material commonly used in Li-ion batteries, hydrides have the theoretical potential to overcome 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 MgH2: MxAy + n Li = x M + y LimA, where m = n/y. Even if far from optimization, outstanding performances were observed, drawing the attention to the whole hydride family. Looking for high capacity systems, lightweight complex metal hydrides, such 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 the tackling of fundamental issues that are completely unexplored. Here, our recent findings on the incorporation of borohydrides are presented and discussed. View Full-Text
Keywords: lithium-ion batteries; negative electrodes; borohydrides; conversion reactions lithium-ion batteries; negative electrodes; borohydrides; conversion reactions
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Meggiolaro, D.; Farina, L.; Silvestri, L.; Panero, S.; Brutti, S.; Reale, P. Lightweight Borohydrides Electro-Activity in Lithium Cells. Energies 2016, 9, 238.

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