US 2026/0084334 A1 · DIE ASSEMBLY FOR NOTCHING ELECTRODE PLATE OF SECONDARY BATTERY AND METHOD OF MANUFACTURING DIE ASSEMBLY

Abstract

The present disclosure relates to a die assembly used for notching or cutting an electrode plate of a secondary battery and a method of manufacturing the die assembly. The present disclosure provides a method of manufacturing a punch holder and a die holder of a die assembly for notching an electrode plate of a secondary battery, which includes fixedly overlapping a punch holder and a die holder, simultaneously polishing side surfaces of the punch holder and the die holder overlapping each other, setting a center point of each of the punch holder and the die holder overlapping each other, and generating a reference hole passing through each of the punch holder and the die holder overlapping each other at a position spaced from the center point, and a notching die assembly manufactured by the method.

Claims18

Dependent claims

A die assembly, comprising:

a punch holder comprising a first pocket, the first pocket configured to accommodate a punch for notching an electrode plate of a secondary battery being placed on the first pocket;
and
a die holder comprising a second pocket, the second pocket configured to accommodate a die for notching the electrode plate being placed on the second pocket,
wherein side surfaces of each of the punch holder and the die holder are aligned with each other,
wherein each of the punch holder and the die holder has a center point at a same position, and
wherein each of the punch holder and the die holder has a reference hole at a same position spaced from the center point.

3 more elements

Dependencies are inferred from the claim text.

Die assembly for notching electrode plate of secondary battery and method of manufacturing die assembly

Life of this patent

Die assembly for notching electrode plate of secondary battery and method of manufacturing die assembly

Life of this patent

Abstract

Claims18