Cable-Type Secondary Battery Terminal Configuration
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Solution Overview
Problem
Existing secondary batteries, such as cylindrical and prismatic types, have limited shape adaptability, making them unsuitable for diverse mobile device applications, and there is a need for a cable-type secondary battery that can be easily connected through a connection terminal.
Innovation Solution
A cable-type secondary battery design featuring an inner electrode layer, a separation layer, and an outer electrode layer, with first and second connection terminals at each end, allowing for easy connection and integration into various devices, including battery modules and charging systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cable-type secondary battery is designed with connection terminals at both ends, then ease of connection and adaptability to diverse devices is improved, but device complexity increases due to the need for proper terminal configuration and connection management
Solution Approach 1:
The patent applies universality by designing connection terminals that can be configured in multiple ways (male-male, male-female, female-male, female-female) to accommodate different connection scenarios. This multi-functional terminal design allows the same basic structure to serve various connection purposes, improving adaptability while managing complexity through standardized components.
Solution Approach 2:
The patent segments the connection terminal system into distinct male and female terminal types, allowing independent selection and combination based on specific application needs. This segmentation enables flexible configuration (series or parallel connections) while maintaining manageable complexity through modular terminal design.
2Ease of operation
If connection terminals are added to enable easy connection, then ease of operation is improved, but device complexity increases due to additional components
Solution Approach 1:
The connection terminals serve multiple functions: electrical connection, mechanical attachment, and polarity identification. This multi-functionality reduces the need for separate components for each function, improving ease of operation while minimizing the increase in overall device complexity.
Solution Approach 2:
The patent merges the electrical connection function and mechanical attachment function into a single integrated terminal structure. This combining of functions reduces the total number of separate components needed, making operation easier while controlling device complexity.
Data Source
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AI summary
Disclosed is a cable-type secondary battery. The cable-type secondary battery according to the present disclosure comprises at least one inner electrode layer including an inner electrode active material formed on a surface of an inner current collector having a horizontal cross section of a predetermined shape and extending in a lengthwise direction, a separation layer formed to surround the inner electrode layer, and an outer electrode layer formed to surround the separation layer and including an outer electrode active material formed on a surface of an outer current collector, and the cable-type secondary battery further comprises a first connection terminal that is electrically connected to the outer current collector and formed at one end of the cable-type secondary battery, and a second connection terminal that is electrically connected to the inner current collector and formed at the other end of the cable-type secondary battery. According to the present disclosure, connecting the cable-type secondary battery to a charger or a load is facilitated.