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US 2024/0266646 A1Published application
Pouch Film and Secondary Battery
AssigneeLG Energy Solution, Ltd.
InventorsDae Woong Song, Soo Ji Hwang, Sang Hun Kim, Min Hyeong Kang
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Abstract
A pouch film laminate includes a first base layer, a second base layer, a gas barrier layer and a sealant layer, which are sequentially stacked, and the moisture content index of the second base layer, which is represented by a predetermined Formula, is about 17,000 ppm·g/cm3 or less.
Claims20
A pouch film laminate comprising:
- a first base layer, a second base layer, a gas barrier layer and a sealant layer which are sequentially stacked,
- wherein a moisture content index of the second base layer, which is represented by the following Formula 1, is about 17,000 ppm·g/cm3 or less.
- Moisture content index of second base layer=Moisture content (ppm) per unit weight of pouch film laminatex density (g/cm3) of pouch film laminate×thickness (μm) of pouch film laminate/thickness (μm) of second base layer. [Formula 1]
A method of manufacturing a pouch film laminate, the method comprising:
- obtaining a first base layer, a second base layer, a gas barrier layer and a sealant layer;
- and
- sequentially stacking the first base layer, the second base layer, the gas barrier layer and the sealant layer,
- wherein a moisture content index of the second base layer, which is represented by the following Formula 1, is designed to be about 17,000 ppm·g/cm3 or less.
- Moisture content index of the second base layer=Moisture content (ppm) per unit weight of the pouch film laminate×density (g/cm3) of pouch film laminate×thickness (μm) of pouch film laminate/thickness (μm) of second base layer. [Formula 1]
2 more elements
Dependencies are inferred from the claim text.