Thin electronic device having an integrated circuit chip and a power battery and a method for producing same

A method for producing an information card, comprising the steps of:

• printing an electroconductive pattern and first and second electrode surfaces of a battery onto integrally-formed first and second cover sheet portions;
• applying an anodic active material and a cathodic active material onto said first and second electrode surfaces, respectively;
• fixing an IC chip to said electroconductive pattern in a predetermined position;
• resting an electrolyte-impregnated separator onto one of said first and second electrode surfaces;
• and
• folding said first and second cover sheet portions so as to be superposed one upon the other and cutting them into a predetermined size.

A thin electronic device including:

• a first cover sheet with a first electrode surface of a battery formed thereon;
• a second cover sheet with a second electrode surface of the battery formed thereon;
• an anodic active material applied onto said first electrode surface;
• a cathodic active material applied onto said second electrode surface;
• a separator impregnated with electrolyte;
• a circuit member positioned between said first and said second cover sheets and operated by said battery;
• and
• a connecting conductor formed on said first and said second cover sheets to connect said first and second electrode surfaces with said circuit member,
• said anodic active material and said cathodic active material being opposed to each other through the separator, said first and said second cover sheets being integrally laminated together without an intermediate layer to hold said circuit member.