Electrode Assembly And Lithium Secondary Battery Comprising Same

Abstract: The present invention relates to an electrode assembly and a lithium secondary battery, the electrode assembly comprising a cathode, an anode and a coating layer positioned between the cathode and the anode, wherein the coating is formed of at least two layers in the stacking direction of the cathode and the anode, the coating layer include a first coating layer in surface contact with the anode and a second coating layer not in surface contact with the anode, the first coating layer comprises any one selected from particles i) to iii), and the second coating layer comprises iii) if the first coating layer comprises i) or ii), and comprises i) or ii) if the first coating layer comprises iii). i) Oxide-based solid electrolyte particles, and ceramic particles having a zeta potential absolute value of 25 mV or higher, ii) oxide-based solid electrolyte particles, and iii) ceramic particles having a zeta potential absolute value of 25 mV or higher.

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