Abstract: Provided are a binder for an electrode, a negative electrode for a secondary battery including the binder, and a secondary battery, in which an active material layer is prevented from lifting from a negative electrode base material. A binder forming an electrode of a secondary battery includes a binder particle and a temperature-sensitive polymer grafted on a surface of the binder particle.

Abstract: An integrated thin film battery and fabrication method thereof is provided, in which a plurality of thin film batteries and thin film solar cells are formed in grooves formed on a substrate, to thereby secure stabilities of the thin film batteries and the thin film solar cells and provide a desired charging capacity and output voltage. The integrated thin film battery includes a substrate made of an electrical insulation material and whose one surface is etched to form a groove thereon; and a thin film battery including an anode, an electrolyte, a cathode, and anode and cathode current collectors respectively contacting the anode and cathode, for collecting current, which is formed on a groove formed on the substrate, for charging and discharging electrical energy.