Patent ID: 6108879
Filing Date: 2000-08-29
Classification: D04H,H01M,Y02E

Abstract:
A method of making resilient fibrous, battery separator media comprising:air laying glass microfibers having a mean diameter between about 0.5 and about 2.0 microns to form a resilient fibrous mat of randomly oriented, entangled glass microfibers having a weight between about 50 and 450 grams per square meter of surface area, and a density, and a tensile strength; the air laid fibrous mat having first and second major surfaces for contacting major surfaces of electrode plates of a battery in which the air laid fibrous mat is installed as a separator and a resilience in a direction perpendicular to the major surfaces of the air laid fibrous mat for maintaining the major surfaces of the air laid fibrous mat in contact with the major surfaces of the electrode plates while undergoing repeated compressions and expansions during a service life of the battery.