Lithium-ion (Li-ion) batteries are an advanced energy storage technology that plays a key role in the trend toward renewable and sustainable industrial solutions involving electrification. They have high energy density, high power density, and long cycle life which has driven the adoption of Li-ion batteries. Separators are an important component within a Li-ion battery that mechanically separates the anode and cathode while allowing maximum ionic conductivity of the Li-ion containing electrolyte. Its design and performance directly affect the capacity, cycle life, and safety performance of the battery.
The AutoPore V uses mercury porosimetry that can be used for characterization of Li-ion battery separators and electrodes. This uniquely valuable technique delivers speed, accuracy, and characterization of properties critical to safety, energy density, and longer cycle life. Mercury intrusion porosimetry results of analyses of three lithium-ion commercial separators will be discussed in terms of pore volume distribution, permeability, and pore tortuosity.
