phosphate lithium battery for back power

The lithium iron phosphate (LiFePO
4
) battery
, also called LFP battery (with "LFP" standing for "lithium ferrophosphate"), is a type of rechargeable battery, specifically a lithium-ion battery, which uses LiFePO
4
as a cathode material, and a graphitic carbon electrode with a metallic current collector grid as the anode. LiFePO
4
batteries have somewhat lower energy density than the more common lithium cobalt oxide (LiCoO
2
) design found in consumer electronics, but offer longer lifetimes, better power density (the rate that energy can be drawn from them) and are inherently safer. LiFePO
4
is finding a number of roles in vehicle use and backup power.