US 10,319,956 B2 · Pouch case for secondary battery and pouch-type secondary battery comprising the same

Abstract

The present invention relates to a pouch case for a secondary battery and a pouch-type secondary battery comprising the same. More particularly, it relates to a pouch case for a secondary battery comprising an inner resin layer, a metal layer and an outer resin layer, wherein the inner resin layer comprises a porous non-woven fabric support having a plurality of pores and a polymer sealant filled in the pores of the non-woven fabric support; and a secondary battery comprising the same.

Claims15

Dependent claims

A pouch case for a secondary battery composed of an inner resin layer, an outer resin layer and a metal layer located between the inner resin layer and the outer resin layer,

wherein the inner resin layer comprises:
a porous non-woven fabric support having a plurality of pores, and
a polymer sealant filled in the pores of the non-woven fabric support,
wherein the non-woven fabric is formed by blend spinning of polypropylene resin and polyester resin, and a weight ratio of the polypropylene resin:the polyester resin is in a range of 5:5 to 7:3.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/524,056Filed 19 Nov 2015

Priority

KR 10-2014-016185219 Nov 2014

Published

US 2017/0352844 A17 Dec 2017

Granted

11 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

H01M 50/124
Characterised by the material: having a layered structure
H01M 50/105
Characterised by their shape or physical structure: pouches or flexible bags
H01M 50/119
Inorganic material: metals
H01M 50/121
Characterised by the material: organic material

Pouch case for secondary battery and pouch-type secondary battery comprising the same

Life of this patent

Pouch case for secondary battery and pouch-type secondary battery comprising the same

Life of this patent

Abstract

Claims15