Lightweight Borohydrides Electro-Activity in Lithium Cells

Daniele Meggiolaro, Luca Farina, Laura Silvestri, Stefania Panero, Sergio Brutti and Priscilla Reale
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Daniele Meggiolaro: Chemistry Department, Sapienza University, Piazzale Aldo Moro 5, Rome 00185, Italy
Luca Farina: Chemistry Department, Sapienza University, Piazzale Aldo Moro 5, Rome 00185, Italy
Laura Silvestri: Chemistry Department, Sapienza University, Piazzale Aldo Moro 5, Rome 00185, Italy
Stefania Panero: Chemistry Department, Sapienza University, Piazzale Aldo Moro 5, Rome 00185, Italy
Sergio Brutti: Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche (ISC-CNR), via dei Taurini, Rome 00185, Italy
Priscilla Reale: Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, ENEA, Centro Ricerche Casaccia, via Anguillarese 301, Rome 00123, Italy

Energies, 2016, vol. 9, issue 4, 1-11

Abstract: 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 MgH 2 : M x A y + n Li = x M + y Li m A, 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.

Keywords: lithium-ion batteries; negative electrodes; borohydrides; conversion reactions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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