Rotary Electrode Plate Stacking for Stable Adhesive Bonding
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Solution Overview
Problem
Existing electrode plate stacking apparatuses struggle to efficiently produce high-capacity secondary batteries with stable electrode plate adhesion, leading to potential capacity degradation and heat generation due to inadequate bonding between electrode plates and separators.
Innovation Solution
An electrode plate stacking apparatus using a rotary supporting plate and pressing plate with controlled rotational blades to form electrode plate assemblies with adhesive bonding, ensuring stable adhesion without separators, and a method involving rotary plates to fold and press separators with electrode plates for enhanced adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional electrode plate stacking apparatus is used, then the manufacturing process is simple, but the adhesion stability between electrode plates and separators is insufficient
Solution Approach 1:
The patent employs dynamic pressing blades that rotate about a first direction to press electrode plates and separators during stacking. The pressing blades are configured to rotate and interfere with the rotary supporting plate, providing dynamic pressing action that enhances adhesion stability between electrode plates and separators while maintaining a relatively simple apparatus structure.
Solution Approach 2:
The pressing blades are designed to press the electrode plates and separators during the stacking process itself, performing the adhesion-enhancing action preliminarily before the batteries are assembled. This preliminary pressing action ensures stable adhesion is achieved during manufacturing rather than requiring additional post-processing steps.
2Productivity
If electrode plates are stacked without sufficient pressing, then the manufacturing process is fast, but the electrode plates may move within secondary cells
Solution Approach 1:
The rotary pressing blades provide dynamic pressing action during the stacking process, ensuring electrode plates are firmly pressed against separators to prevent movement within secondary cells. The rotational mechanism allows continuous pressing action that maintains electrode plate stability while keeping the manufacturing process efficient.
Solution Approach 2:
The pressing blades rotate continuously during the stacking process, providing continuous pressing action on the electrode plates and separators. This continuous useful action ensures stable adhesion and prevents electrode plate movement throughout the entire manufacturing process, maintaining both productivity and stability.
3Reliability
If adhesive bonding without separators is used, then the adhesion is enhanced, but the bonding force stability needs improvement
Solution Approach 1:
The pressing blades are configured to rotate about a first direction and interfere with the rotary supporting plate, creating a dynamic pressing mechanism that enhances bonding force stability. The rotational pressing action ensures uniform and stable adhesive bonding between electrode plates without requiring complex additional mechanisms.
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
Improves the stability and adhesion of electrode plate assemblies, reducing movement within secondary cells and enhancing the manufacturing efficiency of high-capacity secondary batteries.
Implementation Method 1
a rotary supporting plate configured to be rotatable about a first direction... a rotary pressing plate spaced apart from the rotary supporting plate in a second direction perpendicular to the first direction and configured to be rotatable about the first direction
Implementation Method 2
allow a positive electrode plate to be bonded to a negative electrode plate having a surface coated with an adhesive to form an electrode plate assembly... press the electrode plate assembly
Implementation Method 3
a receiver disposed below the rotary supporting plate in a third direction perpendicular to the first direction and the second direction and configured to receive the electrode plate assembly freely falling
Data Source
AI summary
Provided are an electrode plate stacking apparatus and an electrode plate stacking method using the same. A rotary supporting plate is rotatable about a first direction and allows a positive electrode plate to be bonded to a negative electrode plate having a surface coated with an adhesive to form an electrode plate assembly. A rotary pressing plate is spaced apart from the rotary supporting plate in a second direction perpendicular to the first direction, is rotatable about the first direction, and interferes with the rotary supporting plate to press the electrode plate assembly. A receiver is disposed below the rotary supporting plate in a third direction perpendicular to the first direction and the second direction and receives the electrode plate assembly freely falling in response to rotation of the rotary supporting plate.