Electrode assembly and secondary battery including the same

摘要

An electrode assembly and a secondary battery including the same. The electrode assembly includes a plurality of alternately disposed positive electrode plates and negative electrode plates, separators disposed between the positive electrode plates and the negative electrode plates, a plurality of positive electrode tabs formed in the plurality of positive electrode plates, a plurality of negative electrode tabs formed in the plurality of negative electrode plates, a positive electrode lead including a clip accommodating the plurality of positive electrode tabs and a lead line coupled to the clip, and a negative electrode lead including a clip accommodating the plurality of negative electrode tabs and a lead line coupled to the clip.

主权项

1. An electrode assembly, comprising:
a plurality of alternately disposed positive electrode plates and negative electrode plates; separators disposed between the positive electrode plates and the negative electrode plates; a plurality of positive electrode tabs respectively extending from the plurality of positive electrode plates; a plurality of negative electrode tabs respectively extending from the plurality of negative electrode plates; a positive electrode lead including a clip accommodating the plurality of positive electrode tabs and a lead line electrically coupled to the clip; and a negative electrode lead including a clip accommodating the plurality of negative electrode tabs and a lead line electrically coupled to the clip, each clip comprising two legs, each leg in direct physical contact with at least one of the positive and negative electrode tabs, each leg comprising a plurality of protrusions protruding from an inner surface of the leg, wherein each of the plurality of protrusions has a triangular shape, the protrusions protruding from the inner surface of each leg are asymmetrically oriented, and the asymmetrically oriented triangular protrusions are unidirectionally inclined toward a direction along which the positive electrode tabs and the negative electrode tabs are inserted into the respective clip, and wherein the plurality of positive electrode tabs are welded to each other, and the plurality of negative electrode tabs are welded to each other.