Electrode Assembly And Electrochemical Element Comprising Same

Abstract: The present invention relates to an electrode assembly and an electrochemical element comprising same. The electrode assembly of the present invention comprises: a unit electrode; and a strip-type separator, wherein: the separator is folded in a zigzag manner, and the unit electrode is inserted into a part where the separator overlaps; the separator comprises a porous substrate made of a polymer material, and a porous coating layer formed on each of the upper and lower surfaces of the porous substrate and containing inorganic particles; the thickness (Ts) of the porous substrate gradually decreases from the central part to both end parts of the separator in the longitudinal direction; the total thickness (Tc) of the porous coating layer gradually increases toward both end parts; and the total thickness (Ts + Tc) across the entire surface of the separator is kept constant.

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