Pouch Battery Sealing Block Tilting for Uniform Edge Seals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pouch-shaped battery sealing technologies fail to uniformly seal the outer periphery of the battery case within a short time, leading to reduced sealing efficiency and increased defect rates.
Innovation Solution
A pouch-shaped battery case sealing apparatus with an upper sealing block and lower sealing block, where the upper block is coupled to a fixing shaft via a hip joint type coupling unit, allowing for tilting and precession motions to uniformly apply pressure and heat to the laminate sheet, enhancing sealing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed holder and lifting means are used for sealing, then the structure is simple, but the sealing uniformity and efficiency are poor
Solution Approach 1:
The holder is transformed from a fixed structure to a dynamic one capable of tilting in multiple directions. The lifting means is enhanced with tilting mechanisms that allow the holder to adjust its orientation, enabling the sealing block to apply pressure uniformly across the laminate sheet from different angles, thereby improving sealing efficiency without excessive structural complexity
Solution Approach 2:
The sealing process transitions from single-direction pressing to multi-directional pressing by adding tilting capabilities in multiple dimensions. The holder can tilt not only forward and backward but also left and right, creating a three-dimensional pressing action that ensures uniform sealing across the entire laminate sheet surface
2Speed
If tilting in one direction is implemented, then pressing speed improves, but sealing uniformity deteriorates
Solution Approach 1:
The pressing action is made asymmetric by allowing tilting in multiple directions rather than a single symmetric axis. This asymmetric multi-directional tilting enables the sealing block to reach different areas of the laminate sheet effectively, maintaining high pressing speed while achieving uniform sealing across the entire surface
Solution Approach 2:
The holder's tilting capability is made dynamic and adjustable, allowing real-time adaptation of the pressing angle and direction. This dynamic adjustment ensures that the sealing block can maintain optimal contact with the laminate sheet at high speeds while preserving sealing uniformity through adaptive positioning
3Reliability
If conventional sealing methods are used, then the process is simple, but defect rate increases and yield decreases
Solution Approach 1:
The sealing apparatus incorporates multi-directional tilting capabilities that add dimensional flexibility to the pressing action. This multi-dimensional approach ensures complete and uniform contact between the sealing block and laminate sheet, eliminating dead zones that cause defects and improving overall yield without requiring excessively complex machinery
Solution Approach 2:
The system incorporates control mechanisms that monitor and adjust the tilting angles and pressing forces in real-time. This feedback control ensures consistent sealing quality by automatically compensating for variations in material properties or positioning, thereby reducing defect rates while maintaining manageable apparatus complexity through intelligent control
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 achieves uniform sealing of the pouch-shaped battery case within a shorter time, reducing sealing defects and improving overall efficiency.
Implementation Method 1
The outer periphery of the battery case 10 is sealed as the result of inner adhesive layers of laminate sheets being thermally melted and pressed by a rectangular parallelepiped sealing tool
Implementation Method 2
the upper sealing block and the fixing shaft are coupled to each other via a hip joint type coupling unit, allowing for tilting and precession motions to uniformly apply pressure and heat to the laminate sheet
Data Source
AI summary
The present invention relates to a pouch-shaped battery case sealing apparatus capable of adjusting a direction in which an upper sealing block configured to press a laminate sheet applies pressure to the laminate sheet during a process of applying heat and pressure to an outer periphery of a battery case made of the laminate sheet to seal the outer periphery of the battery case when a pouch-shaped battery is manufactured and a pouch-shaped secondary battery sealing method using the same.