The present invention relates to: an electrode capable of preventing the separation of a short-circuit prevention layer since the short-circuit prevention layer, which is made of a heat resistant polymer fiber, can be attached with high binding force when formed on the surface of the electrode, if an active material layer comprises a predetermined amount of polyvinylidene fluoride (PVdF) as a binder; a secondary battery using the same; and a method for manufacturing the electrode. The electrode of the present invention comprises: an electrode current collector; an active material layer formedon the electrode current collector; and a short-circuit prevention layer formed on the active material layer, wherein the short-circuit prevention layer comprises a porous polymer fiber web having a plurality of pores through the accumulation of ultrafine fibers of a heat resistant polymer material, and the active material layer comprises PVdF as a binder.