from chemistry to pack
AION Engineering INC While silicon (SiOx/SiC/Si) based anodes skyrocket battery capacity, their swelling character reaching up to 300% volume expansion transforms cell design from a purely electrochemical challenge into a brutal mechanical packaging problem. It is not just about how much lithium the active material can store; how the casing structurally resists (its rigidity) when … Read more
AION Engineering INC In lithium‑ion battery design, internal resistance is one of the most critical parameters governing power capability, heat generation, fast‑charge performance, and overall efficiency. The difference in internal resistance between wound (spiral/jelly‑roll) cells and Z‑stack (stacked) cells is often misunderstood as a chemistry issue, while in reality it is largely a current‑path and … Read more
AION Engineering INC The performance of a lithium-ion cell is fundamentally governed by its material chemistry, particularly the composition of its cathode active material (CAM). In this article, we focus specifically on the role of nickel content in Nickel Manganese Cobalt Oxide (NMC) materials and how it correlates with energy density and power capability. Although … Read more
The Q4/2023 breakdown of NMC vs LFP costs is interesting as a point in time regarding the full cost comparison and potential as well as the current competition between Europe vs. Chinese supply chains. Here we have a comparison pulled together by P3 Group. As stated, Chinese LFP cell manufacturers especially profit from: Overall there is a up to … Read more
Author: Anton Resing: The cathode electrodes in a lithium-ion battery are a composite of solid charge storing particles, a polymeric binder, and a conductive additive. Together, they are well dispersed in a solvent and spread like paint on a conductive substrate, an effective and pleasingly simple solution that works across various chemistries and cell designs. … Read more
Synthesis, Scale up, and Optimisation of NMC 9.5.5 for Li-Ion Batteries. Ethan Williams, David Burnett, Peter Slater, Emma Kendrick School of Metallurgy and Materials, University of Birmingham, Elms Rd, Birmingham B15 2SE Abstract Motivation Methods 3. Firing Conditions Study Improved capacity retention in B-NMC samples due to suppression of irreversible H2-H3 phase transition as revealed … Read more
It is interesting to look at the cell energy density roadmaps and include the production energy density of the cylindrical cell. Why the cylindrical cell? Well, it’s the most complete cell in terms of function as it has a case that contains the working forces over the lifetime. It normally has a venting system and … Read more
In a rechargeable lithium ion battery lithium ions move from the negative electrode to the positive electrode during discharge, and back when charging. The cathode is a lithium transition metal oxide, eg manganese or cobalt or a combination of transitional metals. The anode is a graphite-based material, which can intercalate or release lithium. When discharge … Read more