Stacked electrode assembly and flexible rechargeable battery comprising the same

Patent metadata

Field	Value
Publication number	US-11437651-B2
Application number	US-201716330223-A
Country	US
Kind code	B2
Filing date	Sep 5, 2017
Priority date	Sep 6, 2016
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

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.

First claim

The invention claimed is:

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.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Eom Hyeri
• Yi Jeongdoo
• Sohn Juhee
• Han Da-Un

Classifications

• H01M50/536

  characterised by the method of fixing the leads to the electrodes, e.g. by welding · CPC title

• H01M50/534

  characterised by the material of the leads or tabs · CPC title

• H01M50/466

  U-shaped, bag-shaped or folded · CPC title

• H01M10/0583 Primary

  of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators · CPC title

• H01M50/538

  Connection of several leads or tabs of wound or folded electrode stacks · CPC title