Electrode Coating Techniques: From Lab to Gigafactory

Doctor Blade Coating

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

How Anode Porosity Changes at High Energy Densities

anode porosity versus energy density

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

Cathode Coating Porosity and ASR

ASR and porosity

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

Why N/P Ratio Matters in Lithium-Ion Cells

NP ratio

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

Importance of Electrode Parameter Changes After Calendaring in Lithium-Ion Cell Production

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

Comparison between Alumina-coated and Boehmite-coated Separators

battery cell stack illustration

Author: Woody Wu at power9tech.cn Alumina and Boehmite are examples of ceramic coating materials used on separators. These can be applied on one side or both sides of the separator. Ceramic-Coated Separators Ceramic-coated separators consist of a base film (PP/PE) with a surface layer of heat-resistant inorganic ceramic particles (e.g., Al₂O₃, SiO₂, Mg(OH)₂), bonded tightly … Read more