Secondary battery

摘要

A secondary battery including a pouch; an electrode assembly in the pouch, the electrode assembly comprising a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate; and a first electrode tab and a second electrode tab extending from the electrode assembly, wherein a portion of at least one of the first electrode tab or the second electrode tab protruding from the pouch is non-planar along its length.

主权项

1. A secondary battery comprising:
a pouch; an electrode assembly in the pouch, the electrode assembly comprising a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate; a first electrode tab and a second electrode tab extending from the electrode assembly, wherein a first portion of at least one of the first electrode tab or the second electrode tab protruding from the pouch is non-planar along its length and a second portion of the at least one of the first electrode tab or the second electrode tab protruding from the pouch is planar along its length and contacts the pouch; a first insulation tape and a second insulation tape between the first electrode tab and the pouch and between the second electrode tab and the pouch, respectively, wherein the first portion is farther from the pouch and a corresponding insulation tape of the first and second insulation tapes than the second portion, wherein the second portion directly contacts the corresponding insulation tape of the first and second insulation tapes, and wherein the first portion is formed from one-half to two-thirds of the length from a distal end of the first and second electrode tab, respectively.