from chemistry to pack
Every push toward faster charging runs into the same wall eventually: it isn’t the wire, the electrode particles, or even the reaction kinetics that gives out first. It’s the electrolyte itself struggling to move enough lithium salt to where it’s needed, fast enough. That transport bottleneck has a name: concentration polarization. It’s one of the … Read more
Led by Dr. Galo J. Páez Fajardo and Professor Louis F. J. Piper, the paper addresses a fundamental question in battery science: how exactly do lithium-ion battery cathodes store and release energy at the sub-nanoscale?. Páez Fajardo, G.J., Dogaru, D.E., Banerjee, H. et al. Direct evidence of metal–ligand redox processes in positive electrodes during lithium-based battery operation. Nat. … 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
AION Engineering INC Calendaring is a crucial step in lithium-ion battery manufacturing, where electrodes are compressed to reduce porosity and increase density. Optimizing this process directly impacts the performance, longevity, and efficiency of the final cell. Why Calendaring Matters The primary goals of calendaring are: Effectively, proper calendaring ensures a balance between mechanical stability, electrochemical … Read more
The lithium-ion (Li-ion) battery didn’t make headlines immediately — it took nearly two decades for the world to truly appreciate its potential. What makes its origin story unique is that it wasn’t developed in a single lab or even by a single team. Instead, it was the result of separate breakthroughs made by scientists in … Read more
AION Engineering INC In lithium-ion battery technology, optimizing cell performance and safety requires careful consideration of multiple parameters. Among these, the cut-off voltage is critical for balancing energy density and ensuring cell longevity and stability. While cathode chemistry often guides cell classification, variations in anode materials significantly impact the appropriate cut-off voltage setting. Influence of … Read more
AION Engineering INC The 1.3 g/Ah Rule: A Starting Point When designing lithium-ion battery cells, a commonly referenced benchmark is the electrolyte mass-to-capacity ratio, typically around 1.3 g/Ah. This serves as a useful starting point for many applications, providing a baseline for ensuring sufficient ion transport within the cell. Why C-Rate Matters However, this ratio … Read more
Why Reuse Is Lagging Behind Author: Bluewater Battery Logistics The global push for renewable energy and electrification is driving an unprecedented production of lithium-ion batteries. Approximately ten to fifteen percent of new batteries remain unused in their intended first-life applications due to various factors – including overproduction and cancelled projects. While recycling is critical for end-of-life batteries, the concept of second-life reuse, where unused and … 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
Charging Current Control Strategy Based on Online Evaluation of the Chargeability Status of its Cells Authors: DIAB Raymonda, SCHAEFFER Emmanuel, AUGER François, POIZOT Philippe, COUSSEAU Jean-François Context Charging time reduction allows : Challenges Standard fast charging methods of Li-ion batteries : Methodology This algorithm enhances the charging current in order to maintain the observed overpotential … Read more