%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.