Battery Cell Loading Air Suction to Prevent Folding Shorts
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Solution Overview
Problem
The issue of unit cells colliding with the magazine during transfer due to high-speed facilities leads to damage, such as breakage or cracks, resulting in quality issues like corrosion, electrolyte leakage, and potential safety hazards like ignition and explosion in secondary battery manufacturing.
Innovation Solution
A system with a transfer part, loading part, and intake part is used to manage the transfer and loading of radical units, employing air suction in the opposite direction of the transfer direction to prevent collisions within the loading part, utilizing a pressing part to align and stabilize the units, and intake parts to control air pressure for deceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed transfer facilities are used to increase productivity, then manufacturing efficiency is improved, but unit cells collide with the magazine causing damage and quality issues
Solution Approach 1:
Air flow is introduced as an intermediary medium between the transferring unit cell and the magazine. The intake part creates a controlled air current that acts as a cushioning force, reducing the impact speed and preventing direct collision between the unit cell and the magazine wall during high-speed transfer operations.
Solution Approach 2:
The patent employs pneumatic principles by using air suction through the intake part to generate a controlled air flow field within the loading part. This pneumatic approach allows for non-contact deceleration and positioning of the unit cell, eliminating mechanical impact while maintaining high transfer speeds.
2Productivity
If unit cells are transferred at high speed, then manufacturing efficiency is improved, but folding short defects occur due to collisions
Solution Approach 1:
Air flow serves as an intermediary that gently guides and positions the unit cell during transfer. The controlled air current reduces horizontal movement and prevents collision-induced misalignment, ensuring proper folding alignment even at high transfer speeds without compromising manufacturing precision.
3Device complexity
If the loading part structure is simplified, then device complexity is reduced, but collision prevention capability is insufficient
Solution Approach 1:
Instead of adding complex mechanical structures like buffers or guides, the patent uses a pneumatic approach with an air intake part. This simplifies the overall structure while effectively preventing collisions through controlled air flow that cushions the unit cell during transfer and loading operations.
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
This system effectively reduces folding short defects by stabilizing the radical units during transfer and loading, minimizing collisions and ensuring safe, reliable manufacturing of secondary batteries.
Implementation Method 1
an intake part configured to suction air inside an inner space of the loading part from a side surface of the loading part
Implementation Method 2
a loading part configured to allow the radical unit transferred by the transfer part to drop in a direction of gravity so as to load the radical unit
Data Source
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AI summary
The present invention relates to a system and method for manufacturing a secondary battery and provides a system and method for manufacturing a secondary battery, in which air is suctioned in an opposite direction of a transfer direction inside a loading part to prevent a radical unit, which freely drops at an initial speed in the transfer direction, from colliding with the loading part, thereby reducing folding short defects that occur in a subsequent process. The system for manufacturing the secondary battery includes a transfer part configured to transfer a radical unit, a loading part configured to allow the radical unit transferred by the transfer part to drop in a direction of gravity so as to load the radical unit, and an intake part configured to suction air inside an inner space of the loading part from a side surface of the loading part.