Hydrogen storage alloy

Hydrogen storage alloys comprising a) at least one electrochemically active main phase and b) at least one electrochemically active secondary phase; and/or comprising a) at least one main phase, b) a storage secondary phase comprising one or more rare earth elements and c) a catalytic secondary phase, where the abundance of the storage secondary phase is > 0.5 wt% and the abundance of the catalytic secondary phase is from about 0.3 to about 15 wt%, based on the alloy; exhibit improved electrochemical properties, for example improved low temperature electrochemical properties.