The Role of Separators in LithiumIon Cell Safety（分隔符在锂电池安全的作用）.pdf

The Role of Separators in Lithium-Ion Cell Safety by Christopher J. Orendorff s the use of lithium-ion cells for Table I. Commercial separator properties.* high power applications becomes Aincreasingly widespread, safety Entek Exxon Degussa Celgard and reliability of these cells and battery Product Teklon Tonen Separion 2325 packs is of paramount importance. While most of the targets for lithium-ion in utility Thickness (μm) 25 25 25 25 storage or transportation are focused on Single/multilayer Single layer Single layer Trilayer Trilayer cost, cycle life, and performance, safety will be increasingly important as these batteries Composition PE PE Ceramic-PET-Ceramic PP-PE-PP continue to grow in size to meet demand. One of the most critically important cell components to ensure cell safety is the Process Wet extruded Wet extruded Wet-laid mat Dry extruded separator, a thin porous membrane that Porosity (%) 38 36 40 41 physically separates the anode and cathode. The primary function of the separator is Melt temperature 135 135 220 134/166 to prevent physical contact between the *Separator specifications are fou