Li4CuSbO5.5 powder was mixed with conductive carbon (C65 from Timcal) and binder (PTFE) in weight proportions 85:10:5.
Coin cells were constructed using 5-10 mg active material, metallic Li as the anode and LP30 (1 M LiPF6 in EC:DMC 1:1) as the electrolyte with Whatman GF/D borosilicate glass fiber membranes as separators.

