Electrode Tab Jig Assembly with Adjustable Pressing Interval

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Solution Overview

Problem

Existing electrode tab welding devices cause damage and deformation due to excessive pressing force, necessitating a solution to adjust the interval between pressing members to prevent such damage.

Innovation Solution

A jig assembly with adjustable pressing members and an adjustment jig that maintains a set interval between the pressing members, preventing deformation and enhancing work efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the first and second pressing members are positioned close to each other to effectively gather electrode tabs, then the gathering efficiency is improved, but the electrode tabs are damaged or deformed by excessive pressing force

Engineering Contradiction:
Improvegathering efficiencyVSAvoidelectrode tab damage and deformation
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A pressing force adjustment member is introduced as an intermediary component between the first and second pressing members. This adjustment member includes a pressing force adjustment groove that mechanically controls the interval between the pressing members, thereby regulating the pressing force applied to electrode tabs without requiring complex control systems

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The interval between the first and second pressing members is changed as a controllable parameter. By adjusting the position of the pressing force adjustment member along the pressing force adjustment groove, the interval parameter is modified to optimize both the gathering efficiency and prevent electrode tab damage

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the interval between pressing members is fixed to prevent electrode tab damage, then electrode tab integrity is improved, but the work efficiency and adaptability are reduced

Engineering Contradiction:
Improveelectrode tab integrityVSAvoidwork efficiency
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The pressing member configuration is made dynamic through the pressing force adjustment member that can be repositioned along the pressing force adjustment groove. This allows the interval between pressing members to be adjusted according to different electrode tab specifications, improving both reliability and ease of operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pressing force control function is segmented into a separate adjustable component (pressing force adjustment member) distinct from the main pressing members. This segmentation allows independent optimization of the pressing interval without affecting the overall gathering mechanism

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4481934B1Electrode tab jig assembly and electrode tab welding device comprising same
Publication Date: 2026.04.01 LG ENERGY SOLUTION LTD
  • EP4481934B1 patent drawingFigure 1
  • EP4481934B1 patent drawingFigure 2
  • EP4481934B1 patent drawingFigure 3

AI summary

The present invention relates to a jig assembly for an electrode tab, which includes: a first pressing member and a second pressing member, which are configured to press electrode tab provided on a plurality of electrode parts so that the electrode tabs are gathered to be bundled; and an adjustment jig configured to space the first pressing member and the second pressing member apart from each other so that an interval between the first pressing member and the second pressing member is maintained at a set interval or more so as to adjust pressing force applied to the electrode tabs.