Abstract: The present invention relates to a battery having an electrode structure using metal fiber and a preparation method of an electrode structure. A preparation method of an electrode structure, according to one embodiment of the present invention, includes a step for providing one or more metal fibers forming a conductive network; a step for providing particle compositions including electrical active materials of a particle shape; a step for mixing the metal fibers and the particle compositions; and a step for compressing the mixed metal fibers and the particle compositions.

Abstract: Disclosed are implants for use in biomedical treatment thermally, including thermo-coil, thermo-guide wire and thermostent. Thermally heated, magnetic material selected from among duplex stainless steel, nickel-copper alloy, iron-nickel alloy, palladium-cobalt alloy, and palladium-nickel alloy is fabricated into coils or tubular forms which can be inserted into the lumen. The material is treated at 200-1,500° C. After being inserted into the body, the implants can generate heat by themselves in response to the application of an external magnetic field, without a separate electrical connection to the exterior, thereby inducing necrosis or physiological changes at the target site and neighboring tissues to improve therapeutic effects at the target site.