Provided is a method for manufacturing an electroconductive adhesive composition for an electrochemical device electrode, the method including: a first step of stirring a slurry containing an electroconductive carbon, a particulate binder and a dispersion medium at a temperature range of 5 to 40\xb0 C. The mobile phone includes a body, an engaging member, and a battery. By allowing discharging to occur between the first electrode and the second electrode, the metal coating can be removed. The mandrel assembly may also be used as an inside diameter mandrel for supporting a work piece undergoing a machining process. The adjustable weightlifting device allows users to select a desired number of weight plates, and then couples the selected weight plates to retention members disposed in the handle of the device.