Battery Current Collector-Insulator Assembly for Stable Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The insulation performance of battery current collecting plates deteriorates over time due to deviation from their original positions, leading to connection failures and compromised safety.
Innovation Solution
Integrally forming the current collector within the insulator to enhance connection strength, ensuring the current collector's insulation protection by locating its outer edge within the insulator's outer edge, thereby preventing electrical contact and improving safety and space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the current collecting plate is set adjacent to the insulator, then the insulation performance is maintained initially, but the connection strength between the current collecting plate and insulator is insufficient, leading to position deviation and connection failure over time
Solution Approach 1:
The current collecting plate and insulator are integrated into a single unified structure, eliminating the interface between separate components. This merging ensures that the current collecting plate maintains its position relative to the insulator throughout the product lifecycle, preventing position deviation and connection failure while ensuring continuous insulation performance.
Solution Approach 2:
The current collecting plate is embedded within or nested inside the insulator structure, creating a hierarchical arrangement where one component is contained within another. This nesting approach provides both mechanical support and insulation protection, ensuring the current collecting plate remains securely positioned while maintaining electrical insulation.
2Ease of manufacture
If separate components are used for the current collecting plate and insulator, then manufacturing is easier, but assembly precision and connection reliability deteriorate over time due to position deviation
Solution Approach 1:
The current collecting plate and insulator are manufactured as a single integrated component, eliminating the need for precise assembly between separate parts. This approach trades the complexity of creating a multi-component structure for the simplicity of producing one unified part, ensuring position precision is built-in rather than achieved through assembly tolerances.
3Volume of stationary object
If the current collecting plate is positioned outside the insulator, then space utilization is reduced, but insulation protection is compromised when position deviation occurs
Solution Approach 1:
The current collecting plate is positioned within the boundaries of the insulator, utilizing the insulator's volume efficiently. This nested arrangement ensures that the current collecting plate is always surrounded by insulating material, providing continuous insulation protection even when subjected to mechanical stress or thermal expansion, while maximizing space utilization within the battery housing.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The disclosure relates to the technical field of batteries, and a battery is provided, including a housing (10); a cell (20), which is disposed in the housing (10), and includes a main body (21) and a first tab (22), and the first tab (22) is led out from one end of the main body (21); a first insulator (30), which is disposed in the housing (10); a first current collector (40), which is integrally formed in the first insulator (30), and is connected to the first tab (22); the largest circumferential outer edge of the orthographic projection of the first current collector (40) facing an end surface of the main body (21) is located inside the largest circumferential outer edge of the orthographic projection of the first insulator (30) facing an end surface of the main body (21).