from chemistry to pack
The Hidden Hero of Electrode Manufacturing AION Engineering INC In Lithium-ion battery production, the electrode coating process is a defining step for the cell’s final performance. However, achieving a pristine coating isn’t just about machine settings; it begins with the correct formulation of the slurry structure. In this article, we examine slurry viscosity not merely … Read more
AION Engineering INC 1. Doctor Blade Coating Classification: Self-Metered Process Best For: Material screening, coin cells, basic R&D. Doctor blade coating is the foundational technique for battery research. It relies on a “self-metered” mechanism, meaning the final wet film thickness is determined by the geometric gap between the blade and the substrate, combined with the … Read more
AION Engineering INC Why High Porosity Can Lower Resistance in Power Cells Introduction Area Specific Resistance (ASR) is one of the most important performance indicators in lithium ion cathodes. Engineers often assume that reducing porosity improves conductivity and therefore lowers ASR. This idea comes from the expectation that a denser structure provides better particle contact … Read more
In order to reduce costs in the cell manufacturing process the electrodes are coated in widths far greater than any battery cell would use. Hence, after coating, drying and calendering it is necessary to cut the electrodes length wise into a usable width. It is really important that the resultant edges are cut cleanly, without … Read more
Burrs and wavy edges on cell electrodes can have serious consequences up to and including an internal short-circuit and thermal runaway. Hence it is important to understand the slitting process and under what conditions burrs and waviness occurs. Slitter Cutting Control Parameters There are basically three slitter cutting control parameters for the shear cut method, … 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
Author: Glimpse Poor battery quality can lead to major safety and reliability issues in the field in applications including consumer electronics[1, 2], electric vehicles [3, 4], aviation [5], and more. However, detecting latent cell defects—which are responsible for these battery quality issues—during production is notoriously challenging. In this post, we evaluate the primary techniques used in … Read more
Author: Glimpse Battery defects are a major scourge on the industry. In fact, battery defects have been deemed responsible for major billion-dollar electric vehicle recalls.1 Furthermore, dozens of battery safety incidents have been attributed to poor-quality and/or counterfeit batteries, which often have poor performance, reliability, and safety.2–6 In short, battery defects directly threaten both the … Read more