Patent 7318979 was granted and assigned to NISSAN MOTOR CO.,LTD. on January, 2008 by the United States Patent and Trademark Office.
A polymer battery is provided with a positive electrode active material layer, a negative electrode active material layer placed in opposition to the positive electrode active material layer, a polymer electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, and a distance defining member included in the polymer electrolyte layer to define a distance between the positive electrode active material layer and the negative electrode active material layer.