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US 2021/0083333 A1Published application
Washer for secondary battery, secondary battery including same, and method for manufacturing washer for secondary battery
AssigneeLG Chem, Ltd.
InventorsByoung Gu LEE, Do Gyun KIM, Je Jun LEE, Sang Suk JUNG, Hang Soo SHIN
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Abstract
The present invention relates to a washer for a secondary battery including a film layer and an adhesive layer disposed on at least one surface of the film layer, wherein the adhesive layer includes an adhesive component and an indicator component, and the indicator component is fat-soluble, a secondary battery including the same, and a method for manufacturing the washer.
Claims20
A washer for a secondary battery, comprising:
- a film layer, and
- an adhesive layer on at least one surface of the film layer,
- wherein the adhesive layer includes an adhesive component and an indicator component, and
- wherein the indicator component is fat-soluble.
1 more element
A method for manufacturing a washer for a secondary battery, the method comprising:
- preparing an adhesive solution including an adhesive component and a first organic solvent;
- preparing an indicator solution including an indicator component and a second organic solvent;
- preparing a composition for an adhesive layer by mixing the adhesive solution and the indicator solution;
- applying the composition for an adhesive layer on a base film;
- and
- drying the base film having the adhesive layer applied thereon,
- wherein the indicator component is fat-soluble.
4 more elements
A secondary battery comprising:
- an electrode assembly including a positive electrode, a separator, and a negative electrode;
- a can having the electrode assembly embedded therein and including a crimping portion on the top thereof;
- and
- a washer mounted on the crimping portion,
- wherein the washer includes:
- a film layer, and
- an adhesive layer on at least one surface of the film layer,
- wherein the adhesive layer includes an adhesive component and a fat-soluble indicator component.
5 more elements
Dependencies are inferred from the claim text.