%0 journal article %@ 1369-7021 %A Ley, M.B., Jepsen, L.H., Lee, Y.-S., Cho, Y.W., Bellosta von Colbe, J.M., Dornheim, M., Rokni, M., jensen, J.O., Sloth, M., Filinchuk, Y., Joergensen, J.E., Besenbacher, F., Jensen, T.R. %D 2014 %J Materials Today %N 3 %P 122-128 %R doi:10.1016/j.mattod.2014.02.013 %T Complex hydrides for hydrogen storage – New perspectives %U https://doi.org/10.1016/j.mattod.2014.02.013 3 %X Since the 1970s, hydrogen has been considered as a possible energy carrier for the storage of renewable energy. The main focus has been on addressing the ultimate challenge: developing an environmentally friendly successor for gasoline. This very ambitious goal has not yet been fully reached, as discussed in this review, but a range of new lightweight hydrogen-containing materials has been discovered with fascinating properties. State-of-the-art and future perspectives for hydrogen-containing solids will be discussed, with a focus on metal borohydrides, which reveal significant structural flexibility and may have a range of new interesting properties combined with very high hydrogen densities.