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US 2003/0113619 A1Published application
Melt blown battery separator
AssigneeDaramic, LLC
InventorJerry Zucker
Life of this patent
Estimating the term…
Abstract
Battery separators made of a wettable, uniform mat of melt blown fibers. The melt blown fibers are thermally bonded to one another. These fibers are made of a thermoplastic material. The fibers have a diameter in the range of 0.1 to 13 microns (μ) and lengths greater than 12 millimeters (mm). The mat has a basis weight ranging from 6 to 160 grams per square meter (g/m2), a thickness of less than 75 microns (μ), and an average pore size of 0.3 to 50 microns (μ).
Claims16
A battery separator comprising:
- a wettable, uniform mat of melt blown fibers, said fibers being thermally bonded to one another, said fibers being made of a thermoplastic material, said fibers having diameters in the range of 0.1 to 13 microns and lengths greater than 12 millimeters, said mat having a basis weight ranging from 6 to 160 grams per square meter and a thickness of less than 75 microns, and an average pore size ranging from 0.3 to 50 microns.
A battery comprising:
- an anode, a cathode, a separator sandwiched between said anode and said cathode, and an electrolyte wetted out on said separator and being in ionic communication with said anode and said cathode, said separator further comprising a uniform mat of melt blow fibers, said fibers being thermally bonded to one another, said fibers being made of a thermoplastic material, said fibers having diameters in the range of 0.1 to 13 microns and lengths greater than 12 millimeters, said mat having a basis weight in the range of 6 to 160 grams per square meter, a thickness less than 75 microns, and an average pore size of 0.3 to 50 microns.
Dependencies are inferred from the claim text.