Electrode Assembly Stacking for Atypical Battery Cell Shapes
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Solution Overview
Problem
Conventional rechargeable batteries face challenges in being effectively applied to variously sized and shaped electronic device accommodation spaces due to difficulties in stacking atypically shaped electrodes and separators, limiting their versatility.
Innovation Solution
A manufacturing method for an electrode assembly involves blanking and laminating electrodes with separators, allowing for the formation and cutting of electrodes in various sizes and shapes, enabling the assembly of atypical electrode configurations that can be stacked and accommodated in non-standard spaces, with the use of insulating members for electrical insulation and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If typical shaped electrodes and separators are used, then manufacturing is easier, but adaptability to various electronic device spaces is reduced
Solution Approach 1:
The electrode assembly is divided into multiple electrode units with different areas, which are stacked in a stepped configuration. This segmentation allows the battery to adapt to various electronic device spaces while maintaining ease of manufacturing through standardized electrode production processes.
Solution Approach 2:
The invention transitions from two-dimensional typical shaped electrodes to three-dimensional stepped electrode units with different areas. This dimensional change enables the electrode assembly to fit into various electronic device spaces while maintaining manufacturing efficiency.
2Adaptability or versatility
If atypically shaped electrodes are used, then adaptability to electronic device spaces is improved, but manufacturing difficulty increases
Solution Approach 1:
The atypical electrode configuration is segmented into standardized electrode units with different areas. This allows the complex atypical shape to be achieved through simple stacking of standardized units, reducing manufacturing difficulty while maintaining adaptability.
3Adaptability or versatility
If electrode units of different areas are stacked, then adaptability to spaces is improved, but alignment precision requirements increase
Solution Approach 1:
A separator is introduced as an intermediary component between electrode units of different areas. The separator facilitates precise alignment and stacking of electrode units while maintaining electrical insulation, thereby reducing alignment precision requirements during manufacturing.
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 method allows for the creation of electrode assemblies that can be tailored to fit various electronic device spaces, enhancing their applicability and performance by ensuring secure electrical insulation and efficient assembly.
Implementation Method 1
a laminator for laminating the separator by applying heat and pressure to the cut electrode material
Data Source
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AI summary
There is provided a manufacturing method of an electrode assembly, the method including blanking a first electrode from a first base including a first coated region and a first uncoated region, blanking a second electrode from a second base including a second coated region and a second uncoated region, laminating a separator on the second electrode, cutting the laminated second electrode with the separator, and stacking the laminated second electrode and the first electrode.