Welding device and method of manufacturing electrode by using welding device

Abstract

A welding device includes a driving portion that generates ultrasonic waves, a welding horn connected to the driving portion, and an anvil, wherein the welding horn is configured to be positioned on one side of a welding object and the anvil is configured to be positioned on an other side of the welding object, wherein the welding horn and the anvil, together, are configured to pressurize the welding object, wherein the welding horn includes a body portion, a welded portion formed along an outer surface of the body portion, wherein the welded portion includes a first welded portion formed along the outer surface of the body portion, and a second welded portion formed on one side of the first welded portion.

Dependencies are inferred from the claim text.