Cell Gripper Gap Control for Damage-Free Pouch Insertion
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Solution Overview
Problem
The existing methods for manufacturing pouch-type lithium secondary batteries often result in cell damage during the vacuum suction process of inserting cells into pouches, and they are not suitable for transporting high-weight cells.
Innovation Solution
A cell packaging device comprising a cell grip unit with a roller, a gap adjusting mechanism, and a transport part that rotates the cell grip unit to minimize impact and adjust the gap for secure insertion, allowing for safe handling and insertion of cells into pouches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vacuum suction method is used to transport cells, then cells can be gripped and transported, but cells are damaged during insertion into pouch and high-weight cells cannot be transported
Solution Approach 1:
The patent replaces the vacuum suction mechanical system with a mechanical gripping system consisting of gripper fingers that physically clamp onto the cell. This substitution eliminates the suction force that causes cell damage during insertion while maintaining effective cell gripping and transport capability.
Solution Approach 2:
The patent changes the gripping mechanism from vacuum pressure to mechanical clamping force. The gripper fingers apply controlled mechanical pressure to hold the cell, allowing for adjustable grip strength that can accommodate different cell weights without causing damage during the insertion process.
2Productivity
If vacuum suction method is used to transport cells, then cells can be transported, but high-weight cells cannot be transported
Solution Approach 1:
The patent changes the gripping mechanism from vacuum pressure to mechanical clamping force, which can be adjusted to accommodate a wider range of cell weights. The mechanical gripper can apply sufficient force to transport heavy cells while maintaining control during insertion, expanding the adaptability of the transport system.
Solution Approach 2:
The patent introduces a movable gripper mechanism that can dynamically adjust its position and applying force during the transport and insertion process. This dynamic adjustment allows the system to handle cells of varying weights effectively, improving both productivity and adaptability.
3Device complexity
If cells are inserted directly into pouch using vacuum suction, then insertion process is simple, but cell damage occurs during insertion
Solution Approach 1:
The patent replaces the vacuum suction mechanism with a mechanical gripper system that provides controlled cell handling during insertion. The gripper fingers maintain a secure hold on the cell throughout the insertion process, preventing damage while adding minimal complexity to the overall device structure.
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
The device effectively prevents cell damage during the insertion process and enables the transportation and insertion of high-weight cells into pouches without sustaining damage.
Implementation Method 1
a first member provided with a roller
Implementation Method 2
a gap adjusting part adjusting a gap between the first member and the second member
Data Source
AI summary
The present disclosure relates to a cell packaging device. The cell packaging device can include a cell grip unit with a cell grip part including a first member provided with a roller and a second member disposed opposite to the first member at a predetermined interval to provide an insertion space to receive a cell. A gap adjusting part of the cell grip unit can adjust a gap between the first member and the second member. A transport part of the cell packaging unit can transport the cell grip unit.