Battery Terminal Protrusion Structure for Compact Collector Joining
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Solution Overview
Problem
Conventional batteries face challenges in connectivity between the terminal and current collector part, with room for improvement in structural efficiency around the terminal and current collector part.
Innovation Solution
A battery design featuring a terminal with a base and protrusions, where the current collector part is connected to the terminal via a first and second protrusion, with the second protrusion welded to the base, enhancing structural efficiency and ease of connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the terminal structure is simplified for easier manufacturing, then the manufacturing complexity is reduced, but the connectivity and structural efficiency between the terminal and current collector part deteriorate
Solution Approach 1:
The terminal is divided into multiple protrusions (first protrusion, second protrusion, third protrusion, fourth protrusion) that can be independently configured to contact the current collector part. This segmentation allows each protrusion to serve specific connection functions, improving both connectivity reliability and ease of manufacturing through modular design
Solution Approach 2:
Multiple protrusions are combined into a single terminal structure that integrates both mechanical support and electrical connection functions. The base and multiple protrusions work together to provide both structural efficiency and reliable electrical connectivity to the current collector part
2Volume of moving object
If the terminal and current collector part are closely integrated to improve structural efficiency, then the space utilization is improved, but the manufacturing complexity increases
Solution Approach 1:
The terminal structure is segmented into a base and multiple protrusions that can be independently designed and manufactured. This allows for optimized space utilization through compact integration while maintaining manufacturing simplicity through modular construction of the protrusion elements
Solution Approach 2:
The terminal structure serves multiple functions simultaneously: mechanical support through the base, electrical connection through multiple protrusions contacting the current collector part, and space-efficient integration. This multi-functionality reduces overall space requirements without significantly increasing manufacturing 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
The design improves structural efficiency and facilitates easy connection of the terminal and current collector part, reducing space requirements and ensuring strong connectivity.
Implementation Method 1
the second protrusion is welded to the base
Implementation Method 2
the current collector is ultrasonically or laser joined to one or both of the first surface and the third surface
Implementation Method 3
the current collector is ultrasonically or laser joined to one or both of the first surface and the third surface
Data Source
AI summary
Disclosed is a battery capable of improving connectivity between a terminal and a current collector part while improving structural efficiency around them. The battery of the present disclosure includes an electrode laminate, a current collector part, and a terminal. The electrode laminate is electrically connected to the terminal via the current collector part. The terminal includes a base and a protrusion. The base has a first surface facing the electrode laminate and a second surface opposite the first surface. The protrusion protrudes from the base toward the electrode laminate. The protrusion includes a first protrusion and a second protrusion. The first protrusion has a third surface facing the second protrusion. The second protrusion has a fourth surface facing the first protrusion. The current collector part is in contact with one or both of the first surface and the third surface. The second protrusion is welded to the base.