from chemistry to pack
The reference page on LFP’s cathode-electrolyte interface covers coatings and doping as the two established levers. There is a third, newer one that deserves its own look: treating the CEI itself, or the process that forms it, as the thing being engineered. Three recent papers take genuinely different routes to that same goal, and reading … Read more
What “Generation” Actually Means in Lithium Iron Phosphate Lithium iron phosphate (LFP) has spent the last five years closing the energy density gap with nickel-based chemistries, and almost none of that progress has come from changing the underlying LiFePO₄ crystal. Instead, the industry has been fighting a materials-processing battle centred on one metric: compaction density. … Read more
The Iveco S-eWay Arctic battery pack uses Lithium Iron Phosphate (LFP) chemistry with a total pack size of 603kWh split across 3 packs. As this is LFP the usable capacity is 97% of the total and hence even this smaller pack gets close to the original 2024 launch usable capacity of 635kWh. Iveco S-eWay The … Read more
With Asahi Kasei licensing [1] their acetonitrile electrolyte for use in EAS Batteries LFP cells it is worth looking deeper at the technology and benefits. The flyer [2] has the following headlines: This post has been built based on the support of and sponsorship from: Resonate Testing Ltd, Quarto Technical Services, Eatron Technologies and About:Energy The flyer [2] presents data on … Read more
We are very lucky to have the specifications of two battery cells made by the same company and one being LMFP and the other LFP. Thus an opportunity to look at LMFP vs LFP in a like for like scenario. Both cells are from K-Tech New Energy Company Co Ltd (part of Greenway Battery). K-Tech … Read more
CATL BTF0 161Ah LFP is the cell used in the 55kWh Tesla Model 3 SR pack. Sandro Stock et al [1] have published a cell teardown and analysis. This gives an insight to the cell characteristics and design. The cell is made by CATL. Spcifications Jan Schöberl et [4] Metrics It has two jelly rolls, … Read more
The 2021 BYD e-Platform 3.0 brought quite a few changes to the battery pack design. Now with more data available it is worth a more detailed look. BYD make a number of claims around the battery in this design: The platform is likely to be updated to 4.0 in 2024. Cell Orientation With the update … Read more
The Tesla LFP Model 3 is quite a landmark battery pack for Tesla. Up until now everything has revolved around chasing the energy density of cylindrical cells from 18650 to 21700. The 4680 cylindrical is a move to a larger and lower cost cell. This move to Lithium Iron Phosphate (LFP) is perhaps more significant … Read more
A quick look at what we think we know about the Ford Mach-E LFP battery. Is this: The InsideEVs [2] article puts the weight at 37lb lighter than the extended range NMC pack, giving the LFP pack a weight of 653kg. The nominal voltage on the nameplate is 347.8V and CATL LFP cells have a … Read more
The BYD FC4680P cell is a Lithium Iron Phosphate chemistry in the Tesla 4680 cell format. 4680 => 46mm in diameter and 80mm high A small plug in the top is described as an “explosion proof valve”. Independently measured values shown in bold Key features of BYD FC4680P Dimensions Safety Data Data as shown on … Read more