NOVELTY - The battery has an electrolyte isolating layer, and a positive layer comprising a positive collector film and a positive active material attached to surfaces of the collector film. A negative layer comprises a negative collector film and the negative active material attached to surfaces of the negative collector film, where the collector films are composite rubber conductive films. A positive lead layer comprises a conductive film and part of the positive collector film. A negative lead layer comprises a conductive film and part of the negative collector film, which are laminated together.    USE - Flexible film battery. Uses include but are not limited to intelligent card, communication device, calculator, toy, radio frequency identification label and music greeting card.    ADVANTAGE - The thickness of the battery is less than 0.5 millimeters. The battery has high capacity, and can be bent freely and designed into different shapes based on requirements. The functional high molecular material has strong moisture absorption function, and can be laminated in multiple layers and connected in series to form a power supply. The battery has wide range of application.    DETAILED DESCRIPTION - The positive and negative collector films are made of material of polybutadiene, polyisoprene, 3-polybutadiene rubber, polyisobutene or methyl vinyl silicone rubber added by graphite and additives. The positive active material consists of manganese dioxide, natural manganese powder and conductive active material that contains graphite micro powder or acetylene black and conductive adhesive. The negative active material contains zinc oxide material and additive. The electrolyte isolating layer is a porous filter paper made of acrylonitrile, polyacrylic acid and droxyethylcellulose, grafted with acrylic acid, polyvinyl alcohol, polyacrylamide, acrylonitrile-vinyl acetate resin and cellulose hydrate. An INDEPENDENT CLAIM is also included for a method for manufacturing a flexible film battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a flexible film battery.