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Automotive and stationary energy storage are among the most recently-proposed and still\udunfulfilled applications for lithium ion devices. Higher energy, power and superior safety standards,\udwell beyond the present state of the art, are actually required to extend the Li-ion battery market to\udthese challenging fields, but such a goal can only be achieved by the development of new materials\udwith improved performances. Focusing on the negative electrode materials, alloying and conversion\udchemistries have been widely explored in the last decade to circumvent the main weakness of the\udintercalation processes: the limitation in capacity to one or at most two lithium atoms per host\udformula unit. Among all of the many proposed conversion chemistries, hydrides have been proposed\udand investigated since 2008. In lithium cells, these materials undergo a conversion reaction that\udgives metallic nanoparticles surrounded by an amorphous matrix of LiH. Among all of the reported\udconversion materials, hydrides have outstanding theoretical properties and have been only marginally\udexplored, thus making this class of materials an interesting playground for both fundamental and\udapplied research. In this review, we illustrate the most relevant results achieved in the frame of the\udItalian National Research Project FIRB 2010 Futuro in Ricerca “Hydrides as high capacity anodes in\udlithium cells” and possible future perspectives of research for this class of materials in electrochemical\udenergy storage devices

Hydrides as High Capacity Anodes in Lithium Cells: An Italian “Futuro in Ricerca di Base FIRB-2010” Project