A melt blown battery separator

H - Electricity – 01 – M

Patent

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Details

H01M 2/16 (2006.01) H01M 2/18 (2006.01)

Patent

CA 2464702

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 (u) 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 (u), and an average pore size of 0.3 to 50 microns (u).

L'invention concerne des séparateurs pour accumulateur fabriqués à partir d'une nappe uniforme mouillable de fibres produites par fusion-soufflage et thermiquement reliées les unes aux autres. Ces fibres sont constituées d'un matériau thermoplastique. Les fibres décrites dans cette invention présentent un diamètre variant de 0,1 à 13 microns (µ) et des longueurs supérieures à 12 millimètres (mm). La nappe présente un poids de base compris entre 6 et 160 grammes par mètre carré (g/m2), une épaisseur inférieure à 75 microns (µ), et un diamètre moyen des pores compris entre 0,3 et 50 microns (µ).

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