Lithium Iron Phosphate (LiFePO₄ or LFP) is a lithium-ion battery cathode material that is part of the lithium phosphate family. It has an olivine crystal structure and offers several distinct characteristics: lower cell voltage (~3.3 V nominal per cell) and energy density compared to layered oxide cathodes like NMC. LFP does not contain critical battery minerals, which makes it cost-effective. Its low cost has made LFP a popular choice for applications where energy density can be sacrificed, such as in stationary storage or in electric vehicles that prioritize affordability. One limitation of LFP is lower performance in wide temperature ranges and low volumetric energy density.
NOVONIX actively tests LFP cells and materials. They evaluate how LFP cathodes from different suppliers perform in terms of capacity, cycle life, and especially how they handle fast charging or extreme temperature ranges. NOVONIX might also work on LFP’s integration with advanced anodes (like silicon/graphite blends) to verify compatibility. LFP cells may offer high cycle counts in testing. Therefore, NOVONIX uses high precision coulometry to detect the early life degradation per cycle, ensuring measurements can project out to hundreds of cycles accurately. They may also explore additives that enhance LFP’s low-temperature performance or improve its rate capability. NOVONIX’s work helps fine-tune LFP-based battery designs for optimal performance in both automotive and grid applications.
