Non-Contact Electrode Assembly Sealing With Targeted Hot Air
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Solution Overview
Problem
Existing methods for sealing electrode assemblies involve physical contact, which can lead to unintended heat application or impact on non-sealed regions, compromising sealing quality and integrity.
Innovation Solution
A method and device using hot air blowers with adjustable temperature, pressure, blow time, and angle to seal electrode assemblies non-contactually, with the hot air blower positioned using a driver to target corner portions of the assembly, ensuring precise sealing without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing block is used to physically contact and thermally fuse the sealing region, then sealing can be performed, but heat may be applied to unintended regions or impact may be applied to objects other than the object to be sealed
Solution Approach 1:
The patent replaces the mechanical contact-based sealing block system with a hot air blower system that uses fluid (hot air) to transfer thermal energy. This substitution eliminates direct mechanical contact and impact forces while maintaining the thermal fusion function through controlled hot air delivery to the sealing region
Solution Approach 2:
The patent introduces hot air as an intermediary medium to transfer thermal energy from the hot air blower to the sealing region. This intermediary approach allows heat transfer without direct contact between the heating source and the electrode assembly, preventing unintended heat application and mechanical impact
2Reliability
If a sealing block is used to physically contact the sealing region, then sealing can be performed, but the sealing conditions cannot be precisely controlled
Solution Approach 1:
The patent employs a dynamic hot air blower system with adjustable parameters including temperature, pressure, blow time, and blow angle. This dynamic control system allows precise adjustment of sealing conditions to match specific requirements, unlike the fixed mechanical contact approach of traditional sealing blocks
Solution Approach 2:
The patent utilizes multiple controllable parameters (temperature, pressure, blow time, blow angle) of the hot air blower to precisely control the sealing process. By independently adjusting these parameters, the system achieves precise control over sealing conditions, enabling high manufacturing precision in the sealing process
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 approach minimizes damage to non-sealed areas and allows adaptive control of sealing conditions for uniform and stable sealing quality, enhancing the sealing process by avoiding physical contact-related issues.
Implementation Method 1
sealing the electrode assembly by blowing hot air toward a corner portion of the electrode assembly
Data Source
AI summary
A method and device for sealing an electrode assembly, which includes a plurality of electrodes stacked alternately with a separator therebetween, include a nest that supports the electrode assembly and a hot air blower that blows hot air toward a corner portion of the electrode assembly to seal the corner portion in a non-contact manner. The sealing may be performed in a non-contact method to minimize the impact on or damage to the electrode assembly other than the portions or regions to be sealed, which is typically caused by physical contact during the sealing process. Moreover, conditions for performing the sealing may be controlled to adaptively secure uniform and stable sealing quality.