Biaxially oriented fluoropolymer film made of a special PVDF copolymer and a metallic “electric relaxor” can store roughly 10 times more electric charge than current polymeric capacitor films and can release the charge in less than a microsecond, says the inventor, Strategic Polymer Sciences Inc. (SPS) in State College, Pa. The patented film (U.S. 6787238) has an energy density of over 25 J/cc with full discharge, vs. around 5 J/cc discharge capability of current PP or PET capacitor films. The film was scaled up to full production in December. A 100,000-meter run has been produced in thicknesses from 2 to 10 microns, aimed at energystorage devices for medical, automotive, utility, and military applications. The patented copolymer is made for SPS by Solvay Solexis in Italy (U.S. offices in W. Deptford, N.J.). (814) 238-7400 • www.strategicpolymers.com (856) 853-8119 • www.solvaysolexis.com
Solvay Solexis, Inc.
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Phone (609) 853-8119