Exterior package for flexible electrochemical device and electrochemical device including the exterior package

Patent metadata

Field	Value
Publication number	US-10804504-B2
Application number	US-201615219568-A
Country	US
Kind code	B2
Filing date	Jul 26, 2016
Priority date	Aug 13, 2015
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

An exterior package for an electrode assembly of an electrochemical device includes a plurality of linear patterns. Each of the linear patterns has a cross-section of an uneven structure in a thickness direction of the electrode assembly and a linear pattern of the linear patterns includes a first element line and a second element line, which extend in different directions on a plane perpendicular to the thickness direction of the electrode assembly.

First claim

What is claimed is:

1. An exterior package for an electrode assembly of an electrochemical device, the exterior package comprising:
a plurality of linear patterns,
wherein
each of the linear patterns has a cross-section of an uneven structure in a thickness direction of the electrode assembly, and
a linear pattern of the linear patterns comprises a first element line and a second element line, which extend in different directions from each other when viewed from a plan view in the thickness direction of the electrode assembly,
wherein the linear pattern is spaced apart from an adjacent linear pattern of the linear patterns when viewed from the plan view in the thickness direction of the electrode assembly.

2. The exterior package for an electrochemical device of claim 1 , wherein the first and second element lines are inclined with respect to a first direction perpendicular to the thickness direction of the electrode assembly.

3. The exterior package for an electrochemical device of claim 2 , wherein the first direction is a widthwise direction of the electrode assembly or a lengthwise direction of the electrode assembly.

4. The exterior package for an electrochemical device of claim 2 , wherein the linear patterns are repeatedly arranged in a second direction perpendicular to the first direction and the thickness direction of the electrode assembly.

5. The exterior package for an electrochemical device of claim 2 , wherein the first and second element lines are alternately disposed in the first direction.

6. The exterior package for an electrochemical device of claim 2 , wherein the linear pattern further comprises a third element line disposed between the first element line and the second element line and parallel to the first direction.

7. The exterior package for an electrochemical device of claim 6 , wherein the third element line is connected to or spaced apart from at least one of the first and second element lines.

8. The exterior package for an electrochemical device of claim 6 , wherein the third element line has at least one of a linear shape and a curved shape.

9. The exterior package for an electrochemical device of claim 1 , wherein each of the first and second element lines has at least one of a linear shape and a curved shape.

10. The exterior package for an electrochemical device of claim 1 , wherein the first and second element lines are connected to or spaced apart from each other.

11. The exterior package for an electrochemical device of claim 10 , wherein a connection portion of the first and second element lines has a curved shape.

12. The exterior package for an electrochemical device of claim 1 , wherein
each of the first element line and the second element line is provided in plural, and
an angle between adjacent first and second element lines is different from an angle between another adjacent first and second element lines.

13. The exterior package for an electrochemical device of claim 1 , wherein the linear patterns are defined in at least a part of the exterior package.

14. The exterior package for an electrochemical device of claim 1 , wherein the linear patterns extend to opposite edges of the exterior package.

15. The exterior package for an electrochemical device of claim 1 , wherein the linear patterns have an identical shape or different shapes.

16. The exterior package for an electrochemical device of claim 1 , wherein at least one of the linear patterns has a different shape from another of the linear patterns.

17. The exterior package for an electrochemical device of claim 1 , wherein intervals between the linear patterns are identical to or different from each other.

18. The exterior package for an electrochemical device of claim 1 , wherein an interval between two adjacent linear patterns is different from an interval between other two adjacent linear patterns.

19. The exterior package for an electrochemical device of claim 1 , further comprising: an additional pattern disposed between the linear patterns.

20. The exterior package for an electrochemical device of claim 1 , further comprising: an additional pattern disposed to cross the linear patterns.

21. The exterior package for an electrochemical device of claim 1 , further comprising a gas barrier layer comprising the linear patterns.

22. The exterior package for an electrochemical device of claim 21 , further comprising an adhesive layer disposed on the gas barrier layer.

23. The exterior package for an electrochemical device of claim 1 , further comprising:
a first package disposed to cover an upper surface of the electrode assembly; and
a second package bonded to the first package to cover a lower surface of the electrode assembly.

24. The exterior package for an electrochemical device of claim 23 , wherein the first package comprises the linear patterns.

25. The exterior package for an electrochemical device of claim 24 , wherein the second package comprises the linear patterns.

26. An electrochemical device comprising:
an electrode assembly; and
an exterior package which surrounds the electrode assembly,
wherein
the exterior package comprises a plurality of linear patterns,
each of the linear patterns has a cross-section of an uneven structure in a thickness direction of the electrode assembly, and
a linear pattern of the linear patterns comprises a first element line and a second element line, which extend in different directions from each other when viewed from a plan view in the thickness direction of the electrode assembly,
wherein the linear pattern is spaced apart from an adjacent linear pattern of the linear patterns when viewed from the plan view in the thickness direction of the electrode assembly.

27. The electrochemical device of claim 26 , wherein the first and second element lines are inclined with respect to a first direction perpendicular to the thickness direction of the electrode assembly.

28. The electrochemical device of claim 27 , wherein the linear patterns are repeatedly disposed in a second direction perpendicular to the first direction and the thickness direction of the electrode assembly.

29. The electrochemical device of claim 27 , wherein the linear pattern further comprises a third element line disposed between the first element line and the second element line and parallel to the first direction.

30. The electrochemical device of claim 26 , wherein the linear patterns extend to opposite edges of the electrode assembly.

31. The electrochemical device of claim 26 , further comprising:
an additional pattern disposed between the linear patterns.

32. The electrochemical device of claim 26 , wherein the exterior package further comprises a gas barrier layer comprising the linear patterns.

33. The electrochemical device of claim 26 , wherein the exterior package further comprises:
a first package disposed to cover an upper surface of the electrode assembly; and
a second package bonded to the first package to cover a lower surface of the electrode assembly.

34. The electrochemical device of claim 33 , wherein the first package comprises the linear patterns.

35. The electrochemical device of claim 34 , wherein the second package comprises the linear patterns.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Do Euncheol
• Kwon Moonseok
• Choi Jaeman
• Lee Yoonhoi
• Chang Jaejun

Classifications

• H01G11/78 Primary

  Cases; Housings; Encapsulations; Mountings · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M50/14

  for protecting against damage caused by external factors · CPC title

• H01M50/105 Primary

  Pouches or flexible bags · CPC title

• H01M50/141

  for protecting against humidity · CPC title