Printable and flexible battery on paper for Digital Document Media (DDM) applications
Publication Date: 2004-Dec-23
The IP.com Prior Art Database
This invention describes a portable power source based on a printable and flexible thin battery on paper. A gel-like electrolyte is coated onto the paper that becomes an ionic conductor and serves as salt bridge. Electroactive materials are dispersed into suitable solvents to create paints that can coat on one side paper, followed by sandwiching or lamination to form the cathode and anode of a battery. The paper substrate acts as an ionic conductor in the printed area and an insulator in the non-printing area. The output voltage is about 1.0V to 1.5V. This battery is low cost, has a low profile and is flexible, which makes it possible to incorporate into current DDM devices.