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
Author Dr. Simon Madgwick of Nuvvon Inc. In yet another breakthrough Nuvvon has used its Solid Polymer Electrolyte (SPE) to combine a high silicon anode with a high nickel cathode. See below data set for 1Ah 40% silicon graphite vs NMC 811. Crucially, the SPE is able to accommodate traditional expansion issues associated with high silicon, without … Read more
After looking at the Challenges of Adding Silicon to Graphite Anodes it is important we look at options that solve the expansion of silicon anodes. To solve the severe volumetric expansion of silicon anodes—which can swell by 300% to 400% during charging—researchers and manufacturers rely on a combination of material engineering, chemical stabilization, and electrode … Read more
We all know the benefits but what are the challenges of adding silicon to graphite anodes? Benefits Just to be sure, let’s list the benefits: This post has been built based on the support of and sponsorship from: illumion, Custom Power, Quarto Technical Services, Eatron Technologies and About:Energy Challenges What are the technical challenges of adding silicon to graphite anodes? Volumetric Expansion … Read more
AION Engineering INC Anode Electrode Porosity vs. Energy Density: The Turning Point in High-Energy Lithium-Ion Cells In lithium-ion cell design, one of the most critical relationships shaping performance is the link between anode porosity and energy density. As energy density increases, conventional design logic suggests reducing anode porosity to pack more active material into the … Read more
AION Engineering INC What is the N/P Ratio? The N/P ratio refers to the ratio between the effective capacity of the anode (negative electrode, N) and the cathode (positive electrode, P). In simple terms, it compares how much lithium the anode can store versus how much the cathode can provide. For a safe and reliable … Read more
At the 2025 International Battery Seminar & Exhibit in Orlando FL (USA), Prof. Jeff Dahn (Dalhousie University) highlighted how Si-carbon composite active materials prepared through monosilane deposition on carbon matrices exhibit very promising cycling stability. Prof. Dahn emphasized that the quantity of liquid electrolyte has to be very carefully controlled in such high-energy cells to … Read more
LG INR 21700 M50 has an NMC 811 formulation for the cathode and a Graphite-SiOx anode. It is in the 21700 cylindrical format. Key features Designed to meet Dimensions The diameter is given based on largest measurement at the top of the cell (Section A) Test data Capacity vs Temperature Discharge Temperature [°C] Energy [Wh] -10 … Read more