Understanding how our battery separator performs in your battery is important and helps you choose the appropriate material. We perform physical tests on the battery separator material, and cells incorporating the separator. Battery Cell Testing: We test VRLA, flooded, alkaline primary, and lithium ion batteries up to 12V and 100A with high rate discharging up to 1000A. We follow the Electrical Test Procedures per VDA Lastenheft AGM, BCI, SAE, and IEC Protocols: - Reserve Capacity Durability - EN Cold Cranking Test - SAE Cold Cranking Test - SAE J537 Charge Acceptance Test - EN Charge Acceptance Test - Dynamic Charge Acceptance - Battery Capacity Determination - Over Discharge Protection Test - Over Discharge Cycling Test - Partial depth of Discharge Cycling - Low Rate Partial State of Charge Cycling - SAE J240 Cycle Life Testing - SAE J2801 Cycle Life Testing - Deep Cycle Life Testing - Float Charge Determination - Electrochemical Compatibility Test (ECC) - Resistive Load Testing for Alkaline batteries - Constant Current Testing for Alkaline batteries - Photoflash Testing for Alkaline batteries - Charge Storage Tests Battery Separator Physical Testing: We perform the following physical evaluations on Absorptive Glass Mat (AGM) battery separator materials based on the Battery Council International (BCI) procedures unless otherwise noted by an asterisk (*): - Grammage - Thickness—10 kpa, 20 kpa, and JIS - Density– (g/m 2/mm) - Tensile and Elongation - Moisture Content - Wicking - Porosity - Loss on Ignition (LOI) - Pore Characteristics-First bubble method (max pore) - Pore Characteristics-Liquid porosimetry using PMI porometry equipment - Surface Area—Brunauer-Emmett-Teller (BET) surface area analysis using nitrogen as the adsorptive gas - Acid Weight loss - Compressibility—Compression / Recovery testing - Electrical Resistivity—Testing uses Palico electrical resistance equipment and bath similar to those used in flooded lead acid systems (BCI has not specified a test) - Electrochemical Capability - Extractable Metallic Impurities—Metallic impurities are evaluated by inductively coupled plasma (ICP). Results are reported as ppm / gram of separator - Chlorides - Total Carbon
