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US 11,777,161 B2Granted
Pouch exterior material for lithium secondary battery and lithium secondary battery including same
AssigneeLG Energy Solution, Ltd.
InventorsWon Kyung Shin, Kyoung Ho Ahn, Chul Haeng Lee, Jeong Woo Oh
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Abstract
The present invention relates to a pouch exterior material which is for a lithium secondary battery and includes an inner layer, an outer resin layer, and a metal layer located between the inner layer and the outer resin layer, wherein the inner layer contains an ethylenically unsaturated group, and a lithium secondary battery including the pouch exterior material.
Claims17
A lithium secondary battery comprising:
- an electrode assembly;
- a gel polymer electrolyte including a polymer network in which an oligomer containing a (meth)acrylate group and an oxyalkylene group has a three-dimensional structure;
- and
- a pouch which holds the electrode assembly and the gel polymer electrolyte,
- wherein the pouch includes:
- an inner layer in which a major surface faces the gel polymer electrolyte;
- an outer resin layer;
- and a metal layer between the inner layer and the outer layer,
- the inner layer comprises a polymer having an ethylenically unsaturated group or an inorganic oxide coupling agent substituted with an ethylenically unsaturated group,
- the ethylenically unsaturated group and the oligomer are coupled, and the ethylenically unsaturated group is at least one selected from the group consisting of a vinyl group, an acryloxy group and a methacryloxy group.
7 more elements
Dependencies are inferred from the claim text.