Electrode Assembly Transfer Tray for Tab-Safe Stable Handling

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Solution Overview

Problem

The transfer of large and heavy electrode assemblies during the production of cylindrical batteries is prone to damage, which is a challenge not adequately addressed by conventional transfer trays.

Innovation Solution

An electrode assembly transfer tray is designed with specific seating and support structures to accommodate the electrode assembly, including grooved accommodating portions for tab portions and support portions for the body, ensuring the assembly is horizontally seated and minimally contacted during transfer, with non-contact surfaces for the tab portions and stable support from both sides.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional transfer trays are used for large and heavy electrode assemblies, then the transfer process is simple, but the electrode assembly is prone to damage

Engineering Contradiction:
Improvedamage preventionVSAvoidtransfer tray structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The transfer tray is divided into multiple functional segments: a bottom plate for overall support, seating portions for horizontal positioning, first and second accommodating portions for tab portions, and support portions for the body. This segmentation allows each component to perform its specific function in preventing damage during transfer of large and heavy electrode assemblies.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The seating portions act as intermediaries between the electrode assembly and the bottom plate, providing a horizontal seating surface that prevents direct contact and potential damage. The accommodating portions and support portions similarly serve as intermediaries to securely hold different parts of the electrode assembly during transfer.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the electrode assembly is fully supported during transfer, then stability is improved, but contact with the bottom plate may cause damage to tab portions

Engineering Contradiction:
Improvetransfer stabilityVSAvoidcontact damage
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The support structure is segmented into multiple zones: seating portions that provide horizontal support, accommodating portions that specifically hold tab portions, and support portions for the body. This segmentation ensures that the tab portions are supported by the accommodating portions rather than contacting the bottom plate, preventing contact damage while maintaining overall stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the transfer tray have different functional qualities: the seating portions provide horizontal seating, the accommodating portions provide protected accommodation for tabs, and the support portions provide support for the body. This local differentiation of quality ensures that each part of the electrode assembly is supported in the most appropriate manner, preventing damage while maintaining stability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250323306A1Electrode assembly transfer tray
Publication Date: 2025.10.16 LG ENERGY SOLUTION LTD
  • US20250323306A1 patent drawing
  • US20250323306A1 patent drawing
  • US20250323306A1 patent drawing

AI summary

An electrode assembly transfer tray is configured to accommodate an electrode assembly in which a laminate is wound around a winding axis, and includes a bottom plate configured to support the electrode assembly. The bottom plate includes a seating portion. The seating portion includes a first accommodating portion positioned at one end in the extension direction of the winding axis and configured to accommodate a first tab portion formed by winding the first uncoated portion; a second accommodating portion positioned at the other end in the extension direction of the winding axis and configured to accommodate a second tab portion formed by winding the second uncoated portion; and a support portion configured to support a body portion.