  We propose that the electrons responsible for superconductivity in Li2Pd3B
come from the palladium 4d-electrons. So, its electronic properties are likely
to be dominated by strong electronic correlations. The basic unit in this
material are Pd$_6$B octahedra which share vertices to form a 3-dimensional
network. Due to the highly distorted nature of the Pd$_6$B octahedron, one far
stretched Pd atom per octahedra becomes almost inactive for electronic
conduction. Thus, the material escapes the fate of becoming a half- filled
insulating Mott antiferromagnet by hiding extra charges at these inactive Pd
sites and becomes a self-doped correlated metal. We propose a 3-dimensional
single band t-J model which could be the correct minimal model for this
material.
