Stacked electrode assembly and flexible rechargeable battery comprising the same
The present disclosure relates to a stacked electrode assembly and a flexible rechargeable battery including the same, including a first electrode, a second electrode stacked on one surface or both surfaces of the first electrode, and a separator disposed between the first electrode and the second electrode, wherein the separator has a continuous sheet shape, is bent in a first direction to surround the first electrode and in a second direction as an opposite direction to the first direction to surround the second electrode, and a bending end region of the separator includes a plurality of patterns.
1. A stacked electrode assembly comprising:
a first electrode comprising a first tab extending from one side;
a second electrode stacked on one surface or both surfaces of the first electrode, the second electrode comprising a second tab extending from one side; and
a separator disposed between the first electrode and the second electrode,
wherein the separator has a continuous sheet shape, is bent in a first direction to surround the first electrode and in a second direction as an opposite direction to the first direction to surround the second electrode, and
a bending end region of the separator includes a plurality of patterns,
wherein the plurality of patterns include a protrusions and depressions pattern including a plurality of recess portions and a plurality of convex portions.
2. The stacked electrode assembly of claim 1 , wherein
the plurality of patterns are arranged along a bending line of the bending end region.
3. The stacked electrode assembly of claim 1 , wherein
the bending end region does not overlap the first electrode and the second electrode.
4. The stacked electrode assembly of claim 1 , wherein
a thickness of the separator is 10 μm to 20 μm.
5. A flexible rechargeable battery comprising:
the stacked electrode assembly of claim 1 ; and
a case receiving the stacked electrode assembly.