Electrode-Stacking Wheel Clamping for Accurate High-Speed Stacking
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Solution Overview
Problem
Existing methods for stacking electrode elements in electrochemical energy storage devices, such as lithium-ion batteries, face challenges in achieving high accuracy and speed due to the lack of precise control over the transportation and placement of electrode elements.
Innovation Solution
The electrode stacking wheel incorporates a spindle, radial stacking fingers, and intermediate spaces with integrated electrode clamping elements that apply a clamping force to the electrode elements, ensuring accurate transport and placement by maintaining the elements in a fixed position during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotating stacking wheel is used to convey electrode elements, then the stacking speed can be increased, but the transportation accuracy and stacking accuracy deteriorate due to lack of precise control over electrode element positioning
Solution Approach 1:
The stacking wheel is segmented into multiple stacking fingers arranged circumferentially around the spindle, with each finger having an intermediate space to receive individual electrode elements. This segmentation allows precise positioning of multiple elements simultaneously while maintaining high stacking speed through rotational motion.
Solution Approach 2:
Electrode elements are received and positioned in the intermediate spaces between stacking fingers before the rotation and stacking operation. This preliminary positioning ensures that elements are correctly placed and oriented prior to conveyance, maintaining transportation accuracy while enabling high-speed operation.
2Device complexity
If electrode elements are conveyed without clamping, then the device complexity is reduced, but the electrode elements move within the stacking wheel causing inaccurate deposition on the electrode stack
Solution Approach 1:
The stacking fingers are designed with intermediate spaces that provide localized containment and positioning for electrode elements. Each intermediate space is specifically configured to receive and hold individual elements in precise positions during rotation, ensuring transportation accuracy without requiring complex clamping mechanisms across the entire wheel.
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 solution enhances the accuracy and speed of the electrode stacking process by preventing electrode elements from moving within the stacking wheel, thereby improving the overall quality and efficiency of electrode stack production.
Implementation Method 1
The electrode clamping element (8) is designed, in the clamping state, to apply clamping force to a main surface (9) of one of the electrode elements (7) and to press the respective electrode element (7) against the respective stacking finger (3) by means of the application of force
Data Source
AI summary
An electrode-stacking wheel designed to receive and convey planar electrode elements, includes: a spindle designed for the rotating of the electrode-stacking wheel; a plurality of stacking fingers, which are radial to the spindle and which are arranged circumferentially around the axis of rotation; a plurality of intermediate spaces, which are formed between the respective stacking fingers, each intermediate space being designed to receive at least one of the electrode elements; and an electrode-clamping element formed in each of the intermediate spaces, each electrode-clamping element being designed such that, in the clamping state, the electrode-clamping element applies clamping force to a main surface of one of the electrode elements and presses the electrode element in question against the stacking finger in question by means of the force application.