Secondary Battery Tab Connection With Auxiliary Bypass Conductor
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Solution Overview
Problem
Conventional secondary batteries face issues with unstable connections between the electrode tab and external power sources or loads due to potential damage or defects in the electrode tab, leading to short circuits and impaired charging and discharging processes.
Innovation Solution
Incorporation of an auxiliary connecting member made of conductive material that bypasses the tab coupling portion to ensure electrical connections between the electrode and the electrode lead, utilizing a wire-shaped connection to stabilize the electrical connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrode tab is welded to the electrode lead during manufacturing, then the electrode can be connected to the external power source or load, but the electrode tab may be torn or damaged during the welding process, causing short circuits and connection failure
Solution Approach 1:
The patent introduces an auxiliary connecting member as an intermediary component between the electrode tab and the electrode lead. This auxiliary connecting member receives the electrode tab and transmits the electrical connection to the electrode lead, thereby mediating the connection process and preventing direct damage to the electrode tab during welding or attachment operations
Solution Approach 2:
The patent divides the connection function into separate components: the electrode tab, the auxiliary connecting member, and the electrode lead. By segmenting the connection system, the electrode tab is isolated from direct attachment operations, and the auxiliary connecting member assumes the role of being attached to the electrode lead, thus protecting the electrode tab from damage
2Device complexity
If the electrode tab is used directly to connect the electrode to the electrode lead, then the structure is simple, but the connection is unstable and may fail due to defects or damage in the electrode tab
Solution Approach 1:
The auxiliary connecting member serves as a mediator that enhances connection reliability. Although it adds a component to the system, it provides a dedicated interface for connecting the electrode tab to the electrode lead, isolating the electrode tab from direct stress and potential damage, thereby ensuring stable electrical connection
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 solution provides a stable connection between the electrode and the electrode lead, enhancing the electrical connection between the electrode and the electrode lead, thereby maintaining the electrical connection between the electrode and the electrode lead.
Implementation Method 1
the auxiliary connecting member may be made of a conductive material so that the current flowing through the extension portion may bypass the tab coupling portion and flow to the electrode lead
Data Source
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AI summary
The present disclosure relates to a secondary battery, and a secondary battery according to one aspect of the present disclosure may include an electrode; an electrode tab including an extension portion extending outward from the electrode and a tab coupling portion provided on one side of the extension portion in the extension direction; an electrode lead coupled to the tab coupling portion and capable of electrically connecting the electrode to the outside; and an auxiliary connecting member coupled to the electrode lead and the extension portion, respectively.