초록 ▼

A high performance double layer capacitor having an electric double layer formed in the interface between activated carbon and an electrolyte is disclosed. The high performance double layer capacitor includes a pair of aluminum impregnated carbon composite electrodes having an evenly distributed and

A high performance double layer capacitor having an electric double layer formed in the interface between activated carbon and an electrolyte is disclosed. The high performance double layer capacitor includes a pair of aluminum impregnated carbon composite electrodes having an evenly distributed and continuous path of aluminum impregnated within an activated carbon fiber preform saturated with a high performance electrolytic solution. The high performance double layer capacitor is capable of delivering at least 5 Wh/kg of useful energy at power ratings of at least 600 W/kg.

대표청구항 ▼

[ What is claimed is:] [25.] A method of forming a diffusion bond between an aluminum foil current collector plate and an aluminum/carbon composite electrode comprising the steps of:reducing any aluminum oxide layers from said aluminum foil current collector plate; andpressing said aluminum/carbon c

[ What is claimed is:] [25.] A method of forming a diffusion bond between an aluminum foil current collector plate and an aluminum/carbon composite electrode comprising the steps of:reducing any aluminum oxide layers from said aluminum foil current collector plate; andpressing said aluminum/carbon composite electrode against said aluminum foil current collector plate at a bonding temperature well below a melting point of aluminum in an inert atmosphere such that aluminum atoms fill voids at an interface of said aluminum/carbon composite electrode and aluminum foil current collector plate to adhere said aluminum foil to said carbon electrode while preventing formation of aluminum carbide at said interface.