from chemistry to pack
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
Author Anita Liu Selecting the right separator for the right cell and application is critical. Material Defines Character Thickness & Porosity: The Balance of Thinness and Permeability Thickness: Typically 5~25 μm. Thinner separators facilitate ion transport and increase overall energy density (by saving space and weight), but raise the risk of being pierced by dendrites. … 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
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
A look at dry vs wet separator technology and a look at the next developments in the roadmap. Author: Paul Wen from ZIMT The separator is a porous membrane placed between electrodes of opposite polarity, permeable to ionic flow but preventing electric contact of the electrodes. The dry vs wet differentiation is essentially the difference … Read more