Hermetic packaging member for flexible electrochemical device and electrochemical device including the hermetic packaging member

Patent metadata

Field	Value
Publication number	US-10340484-B2
Application number	US-201615162685-A
Country	US
Kind code	B2
Filing date	May 24, 2016
Priority date	Aug 31, 2015
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

A hermetic packaging member for packaging and sealing an electrode assembly of an electrochemical device includes an edge unit and a receiving unit having a predetermined depth in a thickness direction of the hermetic packaging member from the edge unit to receive the electrode assembly therein. The receiving unit includes a slope portion connected to the edge unit and a plateau portion surrounded by the slope portion. The slope portion includes a plurality of ridges and a plurality of valleys defined between the plurality of ridges.

First claim

What is claimed is:

1. A hermetic packaging member for packaging and sealing an electrode assembly of an electrochemical device, the hermetic packaging member comprising:
an edge unit; and
a receiving unit having a predetermined depth in a thickness direction of the hermetic packaging member from the edge unit to receive the electrode assembly therein, wherein the edge unit surrounds the receiving unit when viewed from a plan view in the thickness direction,
wherein the receiving unit comprises:
a slope portion connected to the edge unit; and
a plateau portion connected to the slope portion,
wherein the slope portion comprises a plurality of ridges and a plurality of valleys defined between the plurality of ridges, and
wherein the plateau portion of the receiving unit protrudes from the edge unit in a thickness direction of the edge unit.

2. The hermetic packaging member of claim 1 , further comprising:
a gas barrier layer on which the ridges and the valleys are defined.

3. The hermetic packaging member of claim 2 , wherein the ridges extend from a boundary region between the slope portion and the edge unit.

4. The hermetic packaging member of claim 2 , wherein the ridges are spaced apart from each other in a length direction of the hermetic packaging member.

5. The hermetic packaging member of claim 2 , wherein the ridges extend in a direction substantially parallel to a width direction of the hermetic packaging member.

6. The hermetic packaging member of claim 2 , wherein a surface of the gas barrier layer located at the slope portion has a minimum curvature radius of about 100 micrometers or greater.

7. The hermetic packaging member of claim 2 , wherein the ridges continuously extend from a boundary region between the edge unit and the slope portion to a boundary between the slope portion and the plateau portion.

8. The hermetic packaging member of claim 2 , wherein the plateau portion comprises a plurality of ridges and a plurality of valleys defined between the ridges.

9. The hermetic packaging member of claim 8 , wherein a ridge of the ridges of the slope portion is connected to a ridge of the ridges of the plateau portion.

10. The hermetic packaging member of claim 2 , wherein the ridges have a convex shape in a boundary region between the plateau portion and the slope portion.

11. The hermetic packaging member of claim 2 , wherein the valleys are located below a plateau portion surface in a boundary region between the plateau portion and the slope portion.

12. An electrochemical device comprising:
an electrode assembly;
a hermetic packaging member for packaging and sealing the electrode assembly,
wherein the hermetic packaging member comprises:
an edge unit; and
a receiving unit having a predetermined depth in a thickness direction from of the hermetic packaging member the edge unit to receive the electrode assembly therein, wherein the edge unit surrounds the receiving unit when viewed from a plan view in the thickness direction, and
the receiving unit comprises:
a slope portion connected to the edge unit; and
a plateau portion connected to the slope portion,

wherein the slope portion comprises a plurality of ridges and a plurality of valleys defined between the plurality of ridges, and
wherein the plateau portion of the receiving unit protrudes from the edge unit in a thickness direction of the edge unit.

13. The electrochemical device of claim 12 , wherein the hermetic packaging member further comprises a gas barrier layer on which the ridges and the valleys are defined.

14. The electrochemical device of claim 13 , wherein the ridges extend from a boundary region between the slope portion and the edge unit.

15. The electrochemical device of claim 13 , wherein
the ridges extend in a direction substantially parallel to a width direction of the hermetic packaging member, and
the ridges are spaced apart from each other in a direction parallel to a length direction of the hermetic packaging member.

16. The electrochemical device of claim 13 , wherein the ridges continuously extend from a boundary region between the edge unit and the slope portion to a boundary between the slope portion and the plateau portion.

17. The electrochemical device of claim 13 , wherein the plateau portion comprises a plurality of ridges and a plurality of valleys defined between the ridges.

18. The electrochemical device of claim 12 , wherein the hermetic packaging member comprises a first hermetic packaging member which covers a top surface of the electrode assembly and a second hermetic packaging member which covers a bottom surface of the electrode assembly.

19. The electrochemical device of claim 18 , wherein each of the first and second hermetic packaging members comprises the ridges and the valleys.

20. The electrochemical device of claim 18 , wherein
the first hermetic packaging member comprises the ridges and the valleys, and
the second hermetic packaging member has a flat shape.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Chang Jaejun
• Kwon Moonseok
• Choi Jaeman

Classifications

• H01M50/128 Primary

  with two or more layers of only inorganic material · CPC title

• H01M50/105 Primary

  Pouches or flexible bags · CPC title

• H01M50/119

  Metals · CPC title

• H01M50/121

  Organic material · CPC title

• H01M50/117

  Inorganic material · CPC title