Modular Pouch Battery Sealing Tool for Electrode Lead Variations
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Solution Overview
Problem
The existing pouch type battery manufacturing apparatuses face challenges in sealing the pouch case effectively when an electrode lead is present, leading to sealing defects, and require new sealing devices for every change in electrode lead width, thickness, or position, resulting in inefficiencies and increased production costs.
Innovation Solution
A modularized sealing tool apparatus comprising upper and lower sealing tools formed by assembling multiple sealing parts, including central, first, and second sealing parts, with adjustable thickness, width, and angles, allowing for customizable assembly to accommodate varying electrode lead configurations, thereby preventing unnecessary mold production and enabling quick adaptation to design changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional sealing device is used to seal the pouch case edge surface, then the sealing can be performed stably without electrode lead, but sealing defects occur when electrode lead is present due to drawing of the electrode lead
Solution Approach 1:
The sealing device is divided into multiple independent sealing units, each capable of being adjusted separately. This segmentation allows each unit to adapt to different electrode lead positions and dimensions independently, while maintaining overall sealing stability.
Solution Approach 2:
The sealing device incorporates adjustable components that can dynamically adapt to different electrode lead configurations. The sealing units can be repositioned and reconfigured based on the specific dimensions and position of the electrode lead, enabling the device to handle variations without compromising sealing quality.
2Manufacturing precision
If a new sealing device is manufactured for every change in electrode lead width, thickness, or position, then sealing precision is maintained, but production costs increase and manufacturing efficiency decreases
Solution Approach 1:
The sealing device is designed as a universal system that can handle multiple electrode lead configurations through adjustable parameters. Instead of requiring different devices for different specifications, a single multi-functional device can adapt to various widths, thicknesses, and positions, maintaining sealing precision while eliminating the need for frequent device remanufacturing.
Solution Approach 2:
The device allows for easy adjustment of sealing parameters such as pressure, temperature, and positioning based on the specific electrode lead dimensions. By changing these parameters rather than the entire device, the system maintains high sealing precision across different specifications while significantly improving manufacturing efficiency.
3Reliability
If a new sealing device is manufactured for every change in electrode lead specifications, then sealing quality is ensured, but production costs and time consumption increase
Solution Approach 1:
The sealing device features dynamic adjustability allowing rapid reconfiguration between different electrode lead specifications. This eliminates the time-consuming process of device replacement while maintaining consistent sealing quality through controlled parameter adjustments.
Data Source
AI summary
A pouch type battery manufacturing apparatus according to an embodiment of the present disclosure is a secondary battery manufacturing apparatus for sealing a pouch type battery case, the apparatus including: an upper sealing tool and a lower sealing tool, wherein each of the upper sealing tool and the lower sealing tool is formed by assembling a plurality of sealing parts, wherein the plurality of sealing parts includes a central sealing part, a first sealing part located on the left and right sides of the central sealing part, and a second sealing part disposed outside the first sealing part, and wherein the central sealing part corresponds to an electrode lead covered by a lead film, and an upper surface and a lower surface of the central sealing part are parallel to each other.