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US 2026/0031382 A1Published application
Apparatus for forming folding guide line, manufacturing method of battery cell, and battery cell
AssigneeSK On Co., Ltd.
InventorsSeung Hyeon CHEON, Sung Yeop KIM, Jun Hyung BYUN, Seong Yun LEE
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Abstract
The present disclosure provides an apparatus for forming a folding guide line including: a forming tool forming a folding guide line in a terrace disposed in at least a portion of a periphery of an electrode accommodation portion of a battery cell; and a heating press heating an inner region of the terrace, and the inner region of the terrace heated by the heating press is disposed between the folding guide line and the electrode accommodation portion.
Claims20
An apparatus for forming a folding guide line, comprising:
- a forming tool forming a folding guide line in a terrace disposed in at least a portion of a periphery of an electrode accommodation portion of a battery cell;
- and
- a heating press heating an inner region of the terrace,
- wherein the inner region of the terrace heated by the heating press is disposed between the folding guide line and the electrode accommodation portion.
1 more element
A manufacturing method of a battery cell, comprising:
- a sealing process of forming a sealing portion by sealing a terrace disposed in at least a portion of a periphery of an electrode accommodation portion of a battery cell;
- and
- a folding guide line forming process of forming a folding guide line in the sealing portion of the terrace,
- wherein the folding guide line forming process heats an inner region of the terrace while forming a folding guide line in the terrace,
- the inner region of the terrace is disposed between the folding guide line and the electrode accommodation portion, and
- a pressurizing surface on which the folding guide line is formed and a heating surface provided to the inner region of the terrace are spaced apart from each other.
3 more elements
Dependencies are inferred from the claim text.