Differences between AGM separators and PE separators

AGM separators and PE separators are both commonly used in batteries, but they have several key differences:

Material Composition:

AGM (Absorbent Glass Mat) separators: Made from glass fiber, known for its high absorbency. They are typically used in valve-regulated lead-acid (VRLA) batteries. PE (Polyethylene) separators: Made from polyethylene material, featuring a microporous structure, and are mainly used in conventional lead-acid batteries.

Performance Characteristics:

AGM separators: Have excellent absorbency and liquid retention, keeping the electrolyte absorbed within the separator and minimizing leakage. This design enhances battery safety and reduces maintenance. AGM separators also have good acid resistance and shock absorption. PE separators: Are more flexible and offer good mechanical strength and chemical resistance. Their microporous structure helps control electrolyte flow and reduces the risk of internal short circuits.

Applications:

AGM separators: Commonly used in sealed, maintenance-free batteries and deep cycle batteries, especially in backup power systems, uninterruptible power supplies (UPS), and electric vehicles. PE separators: Often used in standard starter lead-acid batteries, such as automotive batteries.

Cost:

AGM separators: Generally have a higher production cost due to their superior performance and material costs. PE separators: Have a lower production cost, making them suitable for mass production in standard lead-acid batteries.

Battery Characteristics:

AGM separators: Enable better performance and lower internal resistance during discharge. PE separators: Are suitable for applications that require moderate current discharge. 

Overall, AGM separators are ideal for high-performance batteries due to their liquid retention and absorption capabilities, while PE separators are more common in conventional lead-acid batteries. If you would like to learn more about the separators, please click here.