Porous Power Technologies

reikiman's picture

They make stuff for the innards of lithium-ion batteries ... "Symmetrix™ microporous PVDF separators are directly laminable onto electrodes without expensive and performance-robbing pretreatments. Symmetrix separators maintain maximum porosity and low resistance even after laminating — opening up a wealth of innovative design possibilities for energy storage cell manufacturers. Symmetrix™ microporous separators use a patent-pending process that yields 80% porosity in a thin, flexible film. This high porosity reduces resistance within the battery, allowing for faster cell charge and discharge (with no degradation of battery performance), better thermal control, less waste heat and longer cell cycle life. Symmetrix™ looks and acts like a sponge. Its material composition and unique polymer matrix structure wick electrolyte into the cells two to three times faster and more evenly than traditional separators. This allows increased manufacturing throughput, higher yields and reduced production costs. Symmetrix™ separators easily conform to the surface of the electrode and flex as the electrode expands and contracts. This superior structural bond yields consistent power performance, cycle after cycle. High compression is not required."

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