Battery Cell Sealing Chamber Layout for Multi-Cell Thermal Fusion
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Solution Overview
Problem
There is a need for a sealing apparatus that can stably seal the opening of a battery cell case after electrolyte injection, as existing methods lack reliability and efficiency in forming a secure seal.
Innovation Solution
A sealing apparatus comprising a process chamber, cell loading portion, sealing units, and a driving portion, where the sealing units are configured to move linearly and thermally fuse the sealing region of the battery cell, forming a stable and secure seal while minimizing the overall height and enhancing operational convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the sealing units are disposed horizontally in the process chamber, then the overall height of the apparatus is reduced, but the accessibility for maintenance and operation becomes more difficult
Solution Approach 1:
The patent reorients the sealing units from a vertical arrangement to a horizontal arrangement within the process chamber. This dimensional change allows the sealing units to be disposed horizontally, reducing the overall height of the apparatus while maintaining all necessary functional components. The horizontal configuration enables better accessibility from the side for maintenance operations.
2Productivity
If multiple battery cells are sealed simultaneously, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple sealing units within a single process chamber to enable simultaneous sealing of multiple battery cells. By integrating several sealing units that can operate in parallel within one chamber, the system achieves high productivity through batch processing while managing device complexity through unified chamber design and coordinated control.
Solution Approach 2:
The sealing units are configured to be movable along rails, allowing dynamic adjustment of their positions and operational states. This dynamic capability enables flexible control of multiple sealing units, allowing them to be independently actuated or operated in coordination, thereby managing complexity through programmable control while maintaining high productivity.
3Manufacturing precision
If the sealing units are made movable along rails, then the sealing precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical positioning systems with a simpler rail-based movement mechanism. The sealing units slide along fixed rails to achieve precise positioning, eliminating the need for complex actuators and control systems while maintaining high sealing precision through the constrained linear motion path provided by the rails.
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 a reliable and efficient sealing process, reducing manufacturing time and improving accessibility for maintenance, while allowing for simultaneous sealing of multiple battery cells.
Implementation Method 1
a heat transfer portion (523) coupled to a side surface of the heater portion (521) to transfer heat generated by the heater portion to the battery cell
Implementation Method 2
the sealing units (50) configured to move linearly and thermally fuse the sealing region of the battery cell
Data Source
AI summary
A sealing apparatus is disclosed. In some implementations, the sealing apparatus includes a process chamber having an internal space, a cell loading portion configured to load a plurality of battery cells and enter the internal space of the process chamber, a plurality of sealing units disposed in the internal space of the process chamber, the plurality of sealing units configured to partially seal the battery cells, respectively, and a driving portion configured to move the plurality of sealing units such that the plurality of sealing units come into contact with the plurality of battery cells, respectively.