The lithium iron phosphate battery (LiFePO 4 battery) or LFP battery (lithium ferrophosphate), is a type of lithium-ion battery using lithium iron phosphate (LiFePO 4) as the cathode material, and a graphitic carbon electrode with a metallic backing as the anode. The energy density of LiFePO 4 is lower than that of lithium cobalt oxide (LiCoO 2), and also has a lower operating voltage. The main drawback of LiFePO 4 is its low electrical conductivity. Therefore, all the LiFePO 4 cathodes under consideration are actually LiFePO 4/C. Because of low cost, low toxicity, well-defined performance, long-term stability, etc. LiFePO 4 is finding a number of roles in vehicle use, utility scale stationary applications, and backup power. LFP batteries are cobalt-free.