Battery Formation Device Guides for Gas Pocket Protection

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Solution Overview

Problem

Existing battery formation devices lack reliability in preventing damage to the gas pocket of battery cells during the unloading process, which affects the overall operation and integrity of the battery cells.

Innovation Solution

A battery formation device with horizontal and vertical frames, clamp holders, and rotating arms with guides that fix and flatten the gas pocket of battery cells, ensuring secure handling and protection during the formation process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional battery formation devices are used without guides, then the device structure is simpler, but the gas pocket of the battery cell may be damaged during unloading

Engineering Contradiction:
Improvegas pocket protectionVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces guides as intermediary components between the clamp holders and the battery cell gas pocket. These guides act as protective mediators that prevent direct contact and potential damage during the unloading process, while maintaining the overall functional simplicity of the device structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guides are positioned in advance to preemptively protect the gas pocket before any damage can occur. By having the protective structure already in place during the unloading process, the system prevents potential harm rather than reacting to it afterward.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If clamp holders are moved along the horizontal frame without guides, then the device is easier to operate, but the gas pocket may be damaged during unloading

Engineering Contradiction:
Improveunloading process reliabilityVSAvoiddevice operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The guides serve as intermediary protective elements that do not interfere with the normal operation of clamp holders moving along the horizontal frame. They provide passive protection through their structural presence rather than requiring active control or complex operational procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If guides are added to fix the gas pocket, then the gas pocket is protected from damage, but the device complexity increases

Engineering Contradiction:
Improvebattery cell integrityVSAvoiddevice components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The guides are introduced as minimal intermediary components that provide maximum protection. Their simple geometric structure and passive function minimize the increase in device complexity while effectively preventing gas pocket damage during the unloading process.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4661142A1Battery activation device
Publication Date: 2025.12.10 LG ENERGY SOLUTION LTD
  • EP4661142A1 patent drawingFigure 1~2
  • EP4661142A1 patent drawingFigure 3
  • EP4661142A1 patent drawingFigure 4

AI summary

A battery formation device is provided according to exemplary embodiments of the present invention. The battery formation device comprises: a horizontal frame, first and second clamp holders configured to be moved along the horizontal frame, a vertical frame on the horizontal frame, a drive shaft coupled to the vertical frame, first and second arms coupled to the drive shaft, a first guide connected to the first arm, and a second guide connected to the second arm.