Cylindrical Cell Lead Plate With Integrated Fuse Contact
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Solution Overview
Problem
The existing manufacturing processes for cylindrical secondary cells are complex and require multiple components, which increases production time and costs, and there is a need for a more efficient method to establish direct electrical contact between the terminal part and the conductive sheet.
Innovation Solution
The electrode lead plate, which consists of an inner and outer contact region with a fuse region in between, provides direct electrical contact between the terminal part and the conductive sheet, acting as a single component to simplify the assembly and reduce the number of components needed, while also serving as a fuse to prevent overcurrent issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple components are used to establish electrical contact between terminal part and conductive sheet, then reliable electrical contact is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the electrical contact function and fuse function into a single integrated electrode lead plate component. This single component directly contacts both the terminal part and conductive sheet, eliminating the need for separate contact components while maintaining reliable electrical connection.
Solution Approach 2:
The electrode lead plate performs multiple functions simultaneously: it serves as an electrical conductor establishing contact between terminal and conductive sheet, and as a fuse providing overcurrent protection. This multi-functionality reduces component count while ensuring both reliable contact and safety.
2Reliability
If multiple components and assembly steps are used, then reliable assembly is achieved, but production time increases
Solution Approach 1:
By merging multiple functional components into a single electrode lead plate, the number of assembly steps is reduced. The single component can be installed in one operation, directly contacting both terminal and conductive sheet, thereby increasing production speed without compromising assembly reliability.
3Reliability
If separate fuse component is used, then overcurrent protection is provided, but device complexity increases
Solution Approach 1:
The fuse function is merged into the electrode lead plate itself. The lead plate contains a fuse element that provides overcurrent protection while being integrated into the same component that establishes electrical contact, eliminating the need for a separate fuse component.
Solution Approach 2:
The electrode lead plate is designed as a multi-functional component that simultaneously serves as electrical conductor and fuse. This universal design provides both contact and protection functions without increasing component count or device complexity.
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 configuration reduces the complexity and cost of manufacturing by integrating multiple functions into a single component, ensuring reliable and efficient electrical contact and overcurrent protection, thereby enhancing the production efficiency of cylindrical secondary cells.
Implementation Method 1
The fuse region may be adapted to break, i.e. burn out, when a predetermined current passes through the fuse region
Data Source
AI summary
This disclosure presents an electrode lead plate (6) for a cylindrical secondary cell (1) comprising a terminal part (4) and an electrode roll (3) comprising a conductive sheet (3a). The electrode lead plate (6) comprises an inner contact region (6c) configured to be arranged in direct electrical contact with the terminal part (4), an outer contact region (6e) configured to be arranged in direct electrical contact with the conductive sheet (3a), and a fuse region (6d). Further, a terminal part (4) and a cylindrical secondary cell (1), as well as uses and methods of manufacture, are presented.