Patent ID: 6664006
Filing Date: 2003-12-16
Classification: H01G,H01M,Y02E,Y02P,Y10T

Abstract:
An all-solid-state laminar electrochemical cell for a battery comprising:an anode layer about 0.1-100&mgr; thick; a cathode layer about 0.1-100&mgr; thick; an anode current collector about 0.5-50&mgr; thick attached to said anode; a cathode current collector about 0.5-50&mgr; attached to said cathode; and a layer of solvent free solid polymer electrolyte disposed between said anode arid cathode layers, said solvent free solid polymer electrolyte being a cationic conductor having a conductivity of at least 10âˆ’4 S/cm at 25Â° C. in the absence of solvent and comprising a mixture of a base polymer material comprising at least one ionically conductive polymer and having an initial conductivity of at least about 1Ã—10âˆ’5 S/cm at 25Â° C. when combined with a metal salts the absence of solvent; a metal salt; an inorganic filler having an average particle size <0.05 micron in diameter and a surface area of at least about 100 m2/g; and. an ionic conducting material having an average particle size <0.1 micron in diameter and an initial ionic conductivity of at least 2Ã—10âˆ’3 S/cm at 25Â° C.