FERREIRA, E.A.ZARPELON, L.M.C.CASINI, J.C.S.TAKIISHI, H.FARIA, R.N.2014-07-152014-07-302014-07-152014-07-302010FERREIRA, E.A.; ZARPELON, L.M.C.; CASINI, J.C.S.; TAKIISHI, H.; FARIA, R.N. The effect of high charging rates activation on the specific discharge capacity and efficiency of a negative electrode based on a LaMgAlMnCoNi alloy. <b>Materials Science Forum</b>, v. 660-661, p. 133-138, 2010. DOI: <a href="https://dx.doi.org/10.4028/www.scientific.net/MSF.660-661.133">10.4028/www.scientific.net/MSF.660-661.133</a>. DisponÃvel em: http://repositorio.ipen.br/handle/123456789/4546.0255-5476http://repositorio.ipen.br/handle/123456789/4546A nickel-metal hydride (Ni-MH) rechargeable battery has been prepared using a La0.7Mg0.3Al0.3Mn0.4Co0.5Ni3.8 alloy as the negative electrode. The maximum discharge capacity of the La0.7Mg0.3Al0.3Mn0.4Co0.5Ni3.8 alloy has been determined (350 mAh/g). Using a high starting charging rate (2857 mAg-1) an efficiency of 49% has been achieved in the 4th cycle. The alloy and powders have been characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD).133-138openAccessrare earthstransmissionelectric batterieselectric dischargesnickel hydridesThe effect of high charging rates activation on the specific discharge capacity and efficiency of a negative electrode based on a LaMgAlMnCoNi alloyArtigo de periódico660-66110.4028/www.scientific.net/MSF.660-661.133