from chemistry to pack
Energy density gets the headlines, but the reason solid-state cells are still confined to pilot lines and demonstrator vehicles has as much to do with the factory as the chemistry. Building a gigafactory for a solid-state cell is not simply “the same lithium-ion line with a different electrolyte fill step”. Several of the core unit … Read more
Lamination bonds the separator directly to both electrode faces using heat and pressure to soften a thin adhesive coating already on the separator before the electrode stack is built. Rather than leaving the separator as a free-floating layer held in place only by winding tension or external pack clamping. Why Bond the Separator to the … Read more
Authors: Stephen Fratamico, Bud Collins Over the past 25 years, battery technology has improved dramatically, yet battery startups have struggled. At Catalus Capital, we have unique and extensive insight into the industry, resulting in an informed opinion on what young battery companies must do to succeed. Over decades, energy density has increased, costs have fallen, and … Read more
What is electrode overlap and why does it matter? In lithium-ion cell manufacturing, electrode overlap refers to the region where the active areas of the anode and cathode are aligned across the separator as shown in Figure 1. Maintaining adequate overlap, whereby the anode active area overlaps the cathode, is critical to achieving uniform current … Read more
Authors: Jean E. Marshall, Alfred Madzvamuse, Akash Ratnayaka, Daniel Martin, Briséïs Mercadier, Kat Lukic, MahenderPeddi, Loubna Hdidou, Daniela Proprentner, Ieuan Ellis, Phillip Johns, Alexander Groombridge, Louis F. J. Piper Our latest publication with the Battery Materials and Cells group at WMG, University of Warwick is a capstone of an Innovate UK (IUK), Faraday Battery Challenge … Read more
Author: Matthew Peter Jones Summary X-ray computed tomography (XCT) enables non-destructive, 3D visualization of lithium-ion (Li-ion) battery components and microstructure. At the cell level, XCT is especially useful for detecting manufacturing and quality issues in Li-ion cells [8]. However, turning XCT images into quantitative and reproducible quality assurance (QA) requires custom analysis pipelines that are … Read more
Author: Khaled Mekdour LG Energy Solution’s proprietary improvement on the basic Z-stacking electrode assembly method used in pouch-type lithium-ion batteries. It merges the traditional Z-stacking approach—where cathode and anode sheets are alternately layered with the separator in a zigzag pattern—with LG’s own Lamination & Stacking (L&S) technology and a heat-press bonding step to deliver enhanced … Read more
When comparing slitting methods it is important to consider: Goebel Type This is a cutting method in which the upper knife is fixed in the cutting position in advance, and the entire shaft is moved sideways by a specified amount of air pressure to bring it into contact with the lower knife. The thickness of … 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
Learn how professional lithium battery manufacturers ensure pack Learn how professional lithium battery manufacturers ensure pack reliability through pre-assembly cell testing, voltage and internal resistance matching, and accurate sorting. Discover why these steps are essential for safe, long-lasting battery packs. Cylindrical Battery Cell Testing and Matching: The Essential Process Behind Reliable Lithium Battery Packs Author: … Read more