Patent ID: 6392868
Filing Date: 2002-05-21
Classification: H01G,Y02E

Abstract:
An electric double-layer capacitor (EDLC) comprising:a cell assembly including at least one unit cell having a pair of polarizing electrodes impregnated with electrolytic solution, a porous separator sandwiched between said polarizing electrodes, a pair of current collectors sandwiching therebetween said unit cell, and a pair of lead terminals in electric contact with said current collectors; a pair of thrust plates each disposed on a corresponding one of said current collectors for thrusting therebetween said cell assembly; a mounting gasket for receiving said cell assembly together with said thrust plates; and a packaging overcoat for encapsulating said cell assembly, said thrust plates and said mounting gasket, wherein said packaging overcoat provides a thrusting force to said thrust plates when sealed by a vacuum and each of said thrust plates has slanted side surfaces in contact with said packaging overcoat.