Patent ID: 8252458
Filing Date: 2012-08-28
Classification: C09K,H01M,Y02E

Abstract:
1. A lithium iron disulfide battery comprising: a jellyroll electrode assembly comprising an anode consisting of lithium or a lithium alloy, a cathode including iron disulfide coated onto a current collector and a separator disposed between the anode and the cathode; an electrolyte consisting essentially of one or more organic solvents and at least one solute dissolved therein, said one or more organic solvents including at least 50 volume percent of one or more ethers; a housing; a closure assembly affixed over an opening in the housing; and at least one sealing member disposed between the housing and the closure assembly, said sealing member made from an engineered thermoplastic comprising PPS mixed with at least 10 weight percent of a thermal stabilizing filler; wherein the engineered thermoplastic has an absorption at 71° C. greater than or equal to 10 weight percent and a vapor transmission rate of less than 500(g×mil)/(100 in