Battery Cell Sealing Fold Support for Precise Narrow-Area Pressing
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Solution Overview
Problem
The manufacturing process of battery cells is challenging due to the difficulty in folding the narrow sealing part accurately, which can lead to damage and defects.
Innovation Solution
An apparatus with a support unit and pressing unit that includes a rotatable second support portion and a guide unit to stabilize the folding and pressing process, even in tight spaces, using a straight-shaped support portion and a rotating mechanism to maintain the folding angle and apply heat and pressure effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional pressing device is used to fold the sealing part, then the folding operation can be performed, but the sealing part may be damaged or the folding position may be inaccurate due to the narrow area of the sealing part
Solution Approach 1:
The pressing device incorporates a rotating mechanism that allows the pressing unit to approach the sealing part from different angular positions. This dynamic adjustment enables precise positioning of the folding operation while distributing mechanical stress, preventing damage to the narrow sealing part and ensuring accurate folding placement.
Solution Approach 2:
The pressing device is divided into multiple support portions (first support portion and second support portion) that can independently position and support the sealing part from different directions. This segmentation allows precise control over the folding process by providing multiple contact points, thereby improving folding accuracy and preventing sealing part damage.
2Volume of moving object
If the gap between the body part and sealing part is small, then the battery cell structure is compact, but the pressing process becomes difficult and the folding angle cannot be maintained
Solution Approach 1:
The rotating mechanism enables the pressing unit to approach the sealing part from optimal angular positions that accommodate small gaps between the body part and sealing part. By dynamically adjusting the pressing angle, the device can maintain precise folding angle control even in compact battery cell configurations where traditional fixed pressing devices would fail.
3Device complexity
If the second support portion is fixed, then the structure is simple, but it cannot adapt to different folding angles or prevent interference with the sealing part
Solution Approach 1:
The second support portion is equipped with a rotating mechanism that allows it to change its angular position relative to the first support portion. This dynamic capability enables the support structure to adapt to different folding angles and prevent interference with the sealing part, while maintaining relatively simple construction through the use of a single rotational degree of freedom.
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 apparatus ensures stable folding and pressing of the sealing part, maintaining the desired angle and preventing interference, thus enhancing manufacturing efficiency and reliability.
Implementation Method 1
the pressing unit is configured to press and heat the folded sealing part against the second support portion
Implementation Method 2
the guide unit is rotatable and the press unit and the second support portion are configured to rotate together with the guide unit
Data Source
AI summary
An apparatus for manufacturing a battery cell for processing a sealing part of a battery cell, the sealing part being formed on one side of a body part in which an electrode assembly is accommodated, includes: a support unit including a first support portion and a second support portion supporting the battery cell in different directions; and a pressing unit moving toward the support unit to bend the sealing part, wherein the first support portion reciprocates in a first direction, the second support portion reciprocates in a second direction, and the second direction is inclined with respect to the first direction.