Tape-Applying Mechanism for Cell Tab Redundancy Control
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Solution Overview
Problem
The lack of redundancy in adhesive tape on the outer side of cells during stacking or expansion leads to adhesive tape pulling the connecting sheet and tabs, causing cracking and potential safety hazards.
Innovation Solution
A tape-applying mechanism with an adsorption assembly and an anti-adhesion assembly that forms a redundant part on the adhesive tape, increasing its redundancy to prevent pulling during cell stacking or expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tape is applied tightly to the cell joint without redundancy, then the insulation effect is improved, but the tabs and connecting sheet are pulled during cell stacking or expansion causing cracking
Solution Approach 1:
The patent applies preliminary action by pre-forming a redundant part of the adhesive tape before cell stacking or expansion occurs. The tape-applying mechanism creates an overlapping portion that extends beyond the joint between connecting sheets, ensuring the tape is already in a state that can accommodate subsequent dimensional changes without pulling on the tabs.
Solution Approach 2:
The patent changes the geometric parameter of the adhesive tape by creating a redundant part with increased length or overlap beyond what is minimally required for insulation. This parameter change allows the tape to absorb dimensional changes during cell expansion without compromising tab integrity.
2Reliability
If adhesive tape redundancy is increased to prevent pulling during stacking, then tab safety is improved, but the device complexity increases due to additional tape-applying mechanisms
Solution Approach 1:
The tape-applying mechanism is designed with multi-functionality, serving both to apply the adhesive tape for insulation purposes and to create the redundant part for safety during stacking. This universal design avoids the need for separate mechanisms for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent merges the insulation function and the protective redundancy function into a single adhesive tape application process. The tape-applying mechanism simultaneously achieves both objectives through one integrated operation, reducing overall system complexity compared to separate mechanisms.
3Manufacturing precision
If the adsorption assembly holds the adhesive tape firmly for precise positioning, then manufacturing precision is improved, but the anti-adhesion assembly's ability to form redundant parts is reduced
Solution Approach 1:
The patent segments the tape handling function into two distinct assemblies: the adsorption assembly for precise positioning and the anti-adhesion assembly for forming redundant parts. This segmentation allows each assembly to be optimized for its specific function without compromising the other.
Solution Approach 2:
The adhesive tape itself serves as an intermediary between the adsorption assembly and the anti-adhesion assembly. The adsorption assembly positions the tape with precision, and the anti-adhesion assembly then uses this precisely positioned tape to form the redundant part, with the tape mediating the transition between these two functions.
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
Prevents damage to connecting sheets and tabs by ensuring adequate tape redundancy, enhancing safety during cell stacking and expansion processes.
Implementation Method 1
an end of the tape-applying assembly is provided with an adsorption assembly and a groove arranged alternatively, and after the adsorption assembly adsorbs an adhesive tape, the adhesive tape being disposed corresponding to the groove
Data Source
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AI summary
A tape-applying mechanism belongs to the technical field of cell processing and manufacturing. The tape-applying mechanism includes a platform; a tape-applying assembly connected to the platform, an end of the tape-applying assembly being provided with an adsorption assembly and a groove arranged alternatively, and after the adsorption assembly adsorbs an adhesive tape, the adhesive tape being disposed corresponding to the groove; an anti-adhesion assembly connected to the platform and located on a side of the tape-applying assembly, the anti-adhesion assembly being adapted to reach a position opposite to the groove, and after the adsorption assembly adsorbs the adhesive tape, the anti-adhesion assembly being adapted to press the adhesive tape into the groove to form a redundant part on the adhesive tape.