Segmented Electrode Assembly for Battery Capacity and Repair
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Solution Overview
Problem
Existing rechargeable battery electrode assemblies face challenges in managing inferiority rates and achieving high capacity when stacking multiple unit bodies, particularly in terms of ease of replacement and electrical performance.
Innovation Solution
The electrode assembly is configured with a first sub-unit body and a second sub-unit body, where each unit body includes stacked first and second electrode plates separated by separators, allowing for folding to form multiple unit cells, enabling high capacity and ease of replacement by removing defective units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple unit bodies are stacked to achieve high capacity, then the battery capacity increases, but the management of defective units becomes difficult
Solution Approach 1:
The electrode assembly is divided into multiple independent unit bodies, each containing complete electrode plates and separators. This segmentation allows individual units to be identified, removed, or replaced independently when defective, while maintaining the overall high capacity through the collective stacking of multiple units. Each unit body functions as an independent module that can be managed separately.
2Quantity of substance
If multiple unit bodies are stacked to achieve high capacity, then the battery capacity increases, but the complexity of the structure increases
Solution Approach 1:
The battery structure is segmented into standardized unit bodies that are stacked in a regular pattern. This segmentation creates a modular architecture where each unit has the same basic structure (electrode plates, separators, casing), reducing the complexity of design and manufacturing while enabling high capacity through quantitative stacking rather than qualitative complexity.
Solution Approach 2:
Multiple identical or similar unit bodies are combined through stacking to achieve the desired high capacity. This merging approach allows the system to scale capacity by simply adding more standardized modules rather than designing increasingly complex single-unit structures, thereby maintaining structural simplicity while achieving high performance.
3Ease of repair
If unit bodies are configured for easy replacement, then the ease of repair improves, but the electrical performance may be compromised
Solution Approach 1:
The electrode assembly is segmented into independent unit bodies with standardized interfaces and connection structures. This segmentation enables easy removal and replacement of individual defective units while maintaining reliable electrical connections through the standardized modular design. Each unit maintains complete electrical pathways, ensuring that replacement units integrate seamlessly without compromising overall electrical performance.
Data Source
AI summary
An electrode assembly includes a first sub-unit body including a plurality of stacked first unit bodies, and a second sub-unit body at a lower portion of the first sub-unit body and including a plurality of stacked first unit bodies and a second unit body at a lower portion of the first unit bodies, and each of the first unit bodies includes: first and second electrode plates of a first electrode separately arranged at a side of a first separator; a second separator on the first and second electrode plates of the first electrode; a first electrode plate of a second electrode arranged to correspond to the first electrode plate of the first electrode, with the first separator therebetween; and a second electrode plate of the second electrode arranged to correspond to the second electrode plate of the first electrode, with the second separator therebetween.