Battery Cell Suction Pickup Using Omnidirectional Curvature Separation

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Solution Overview

Problem

Existing methods for taking out battery cells from a loading box often result in damage due to twisting, impacts, or air pressure, leading to defects such as multiple cells being taken out together or deviation from the original stack position.

Innovation Solution

An adsorption apparatus with a main body and interlocking unit, featuring a frame, main cam, vertical and horizontal movement units, and adsorption units, which apply an omnidirectional curvature to separate battery cells without damage by using a combination of vertical and horizontal guide slits and cams to guide the movement of adsorption units.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If battery cells are twisted in a one-dimensional direction to separate the battery cells, then the battery cells can be separated, but the attached battery cells are not properly separated and the battery cells are damaged

Engineering Contradiction:

Improvebattery cell separation completenessVSAvoidbattery cell integrity

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent transitions from one-dimensional twisting to three-dimensional omnidirectional curvature generation. The adsorption apparatus simultaneously moves multiple adsorption units in different directions (first, second, third, and fourth directions) to generate curvature in multiple dimensions, properly separating battery cells without damage

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent divides the separation action into multiple independent adsorption units that can move in different directions. Each adsorption unit independently generates curvature in specific directions, and the combination of these segmented actions achieves complete separation without damage

Inventive Principle:

Principle #1Segmentation

2Reliability

If an impact is simply applied to a battery cell, then the battery cell can be separated, but scratches occur on a surface of the battery cell

Engineering Contradiction:

Improvebattery cell separation efficiencyVSAvoidbattery cell surface quality

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent uses curvature generation instead of direct impact. The adsorption units move to generate omnidirectional curvature in the battery cell, which naturally separates the cells through deformation rather than through impact forces that would cause surface scratches

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent replaces the mechanical impact system with an adsorption-based curvature generation system. The adsorption units adhere to the battery cell surface and move coordinated to generate curvature, substituting the harmful impact mechanism with a controlled deformation mechanism

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If strong air pressure is applied to stacked battery cells through an air blowing process, then the battery cells can be separated, but the battery cell that has fallen off may deviate from the original stack position without returning

Engineering Contradiction:

Improvebattery cell separation capabilityVSAvoidbattery cell stack position accuracy

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent uses adsorption units as intermediaries between the separation force and the battery cell. These units adhere to the cell surface and transmit controlled movement forces, replacing the uncontrolled air pressure with a mediated mechanical movement system that maintains position accuracy

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements a control system that monitors the positions of adsorption units and battery cells, adjusting their movements to maintain proper alignment. The control unit coordinates the movement of multiple adsorption units to ensure cells are separated while returning to correct stack positions

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Effectively separates battery cells without damage by generating an omnidirectional curvature, preventing deformation and ensuring precise extraction in a unit of one sheet.

Implementation Method 1

the battery cell is taken out through an apparatus that applies an adsorption force to an upper surface of the battery cell

Methodology Applied

Scientific EffectAdsorption: Adsorption

Data Source

PatentUS12531262B2Suction apparatus

Publication Date: 2026.01.20 LG ENERGY SOLUTION LTD

AI summary

The disclosed technology relates to a suction apparatus. More specifically, the suction apparatus of the present invention can take out battery cells in a unit of one sheet without damage through a main cam that horizontally reciprocates and a suction unit that moves vertically and horizontally in conjunction with the main cam.