Battery Cell Hot-Press Transfer Using a Jacked Diaphragm
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Solution Overview
Problem
Existing hot-pressing apparatuses for battery cells face issues with tilting and shaking due to the thickness of the jaw, leading to unstable placement on the pressing plates during the compression process.
Innovation Solution
A hot-pressing apparatus with a diaphragm clamping mechanism and jacking mechanism that uses a diaphragm to support the battery cell during transfer, ensuring stable placement by forming a transferring-supporting surface and allowing the jaw to be withdrawn without causing the cell to shake or tilt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a mechanical pressing device is used for hot-pressing composite materials, then the pressing force can be applied, but the heating is non-uniform and time-consuming
Solution Approach 1:
The patent combines heating and pressing functions into a single integrated device. The hot-pressing device applies both thermal energy and mechanical pressure simultaneously through integrated heating elements and pressing mechanisms, eliminating the need for separate heating and pressing steps. This merging of functions achieves uniform heating while applying pressure, significantly reducing the total processing time compared to sequential operations.
Solution Approach 2:
The device enables continuous hot-pressing operation where heating and pressing occur simultaneously and continuously throughout the molding process. The heating elements maintain constant temperature while the pressing mechanism applies sustained pressure, ensuring continuous useful action rather than intermittent or sequential operations. This continuity eliminates idle time between heating and pressing stages.
2Productivity
If conventional hot-pressing methods are used, then composite materials can be molded, but the process is tedious and time-consuming
Solution Approach 1:
The device incorporates preliminary heating of the molding cavity before material insertion, and pre-positioning of heating elements and pressing mechanisms in optimal positions. The control system is pre-programmed with molding parameters, and the device structure is pre-configured for immediate operation. This preliminary preparation eliminates setup time and enables rapid production cycles.
Solution Approach 2:
The hot-pressing device incorporates automatic control systems that self-regulate temperature, pressure, and timing parameters throughout the molding process. The heating elements automatically maintain set temperatures, the pressing mechanism self-adjusts pressure application, and the control system monitors and adjusts parameters without manual intervention. This self-service capability reduces operational complexity and enables unattended operation.
3Loss of time
If separate heating and pressing operations are performed, then each function can be optimized, but the overall process time increases
Solution Approach 1:
The patent merges separate heating and pressing operations into a single integrated hot-pressing device. Heating elements are embedded within the pressing mechanism or positioned in direct thermal contact with the molding cavity, allowing simultaneous application of heat and pressure. This spatial and functional merging eliminates the time required to transfer materials between separate heating and pressing stations, dramatically reducing total process time despite the added integration complexity.
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 solution ensures stable and secure placement of battery cells during compression, preventing tilting and shaking, and allows for efficient multiple cell processing with reduced wear on the diaphragm.
Implementation Method 1
a heating unit configured to heat the composite material to a predetermined temperature for a predetermined period of time
Implementation Method 2
a pressing mechanism configured to apply a pressing force to the composite material under heated conditions
Data Source
Figure 1
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AI summary
Disclosed is a hot-pressing apparatus, which comprises a hot-pressing drive mechanism, a first hot-pressing mechanism, a second hot-pressing mechanism, a diaphragm clamping mechanism and a jacking mechanism. Before transferring the battery cell, the supporting assembly may be driven first to jack a part of the diaphragm, thus forming the transferring-supporting surface above the second hot-pressing plate. The jaw first places the battery cell on the transferring-supporting surface, the transferring-supporting surface may contact only a part of the battery cell to allow the jaw to be suspended, and once the jaw is released, it can be withdrawn. Next, the jacking mechanism withdraws to flatten the diaphragm, and the battery cell will be borne on the diaphragm steadily. As the hot-pressing drive mechanism drives the first hot-pressing plate and the second hot-pressing plate close to each other, the first hot-pressing plate may press the diaphragm and the battery cell borne on the diaphragm against the second hot-pressing plate. It is clear that in a process of transferring the battery cell to the second hot-pressing plate, the use of the diaphragm for transferring may prevent the battery cell from shaking or tilting, thus placing the battery cell steadily. (FIG. 1)