Patent ID: 8088243

Claim:
A method of forming a card including embedded electronics, comprising the steps of: providing a battery including an anode, a cathode, and at least one polymer matrix electrolyte (PME) separator disposed between said anode and said cathode, and embedding said battery and at least one electronic comprising device in at least one plastic layer, said battery electrically connected to said electronic comprising device, wherein said embedding process comprises: a lamination process, wherein a temperature of at least 110° C. for at least 5 minutes under a pressure of at least 200 psi is used for said lamination process; and wherein said battery provides a shift in open circuit voltage and capacity of less than 10% following said embedding process; wherein the PME separator comprises a polyimide which is soluble indefinitely in N-methylpyrrolidone at 20% by weight, at least one lithium salt and at least one solvent intermixed; and wherein the PME separator is substantially optically clear.