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US 2019/0291207 A1Published application
Pressurizing mask and method for joining top cap assembly and electrode tab by using pressurizing mask
AssigneeLG Chem, Ltd.
InventorsMinki JO, Je Jun LEE, Sang Sok JUNG, Jin Uk DO
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Abstract
A pressurizing mask for supporting a combination of a top cap assembly and an electrode assembly has a welding portion and an indent portion into which an electrode tab is inserted.
Claims13
A pressurizing mask for supporting a combination of a top cap assembly and an electrode assembly, comprising:
- a body having an external edge forming a circle on a plane view,
- wherein a welding portion for exposing an electrode tab is formed spaced from a center of the body, and
- wherein an indent portion into which the electrode tab is inserted is formed in a peripheral portion of the welding portion.
A method for combining an electrode tab of an electrode assembly to a top cap assembly, comprising:
- attaching the electrode tab to a current interrupt device of the top cap assembly;
- pressurizing the current interrupt device with a pressurizing mask having a welding portion for exposing a first part of the electrode tab;
- and
- bonding the electrode tab and the current interrupt device by welding the electrode tab exposed through the welding portion,
- wherein the mask is configured to pressurize while attached to 70% to 90% of a surface area of the current interrupt device.
2 more elements
Dependencies are inferred from the claim text.