Integrated Electrode Terminal Connecting Member for Battery Modules
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Solution Overview
Problem
The existing methods for connecting plate-shaped electrode terminals in battery modules are complex, require skilled techniques, and are prone to defects due to external impacts, especially in pouch-shaped batteries with low mechanical strength, necessitating additional members for stable coupling and assembly, which increases system size and complexity.
Innovation Solution
A conductive electrode terminal connecting member with left-wing and right-wing connection parts featuring slits for inserting and bending electrode terminals to achieve tight contact and secure welding, allowing for easy electrical and mechanical coupling of battery cells in series or parallel configurations, while accommodating changes in the number of cells through adjustable slit configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional members are used for stable coupling and assembly of pouch-shaped batteries, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines the electrical connection function and mechanical coupling function into a single integrated electrode terminal connecting member. This member simultaneously connects the electrode terminals electrically and provides mechanical support for stable assembly, eliminating the need for separate additional coupling members and thereby reducing device complexity while maintaining reliability
Solution Approach 2:
The electrode terminal connecting member is designed to perform multiple functions: it serves as an electrical conductor for series/parallel connections, a mechanical support structure for stable coupling, and an assembly guide for precise positioning. This multi-functional design reduces the number of components needed while ensuring reliable assembly
2Reliability
If additional members are used for stable coupling and assembly of pouch-shaped batteries, then reliability is improved, but the overall system size increases
Solution Approach 1:
By merging the electrical connection component and mechanical support component into a single integrated electrode terminal connecting member, the patent eliminates the volume occupied by additional separate members. This integration achieves stable coupling without increasing the overall system size
3Manufacturing precision
If skilled technique is required for welding bent electrode terminals, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The electrode terminal connecting member is pre-designed with predetermined bending shapes and welding positions that match the electrode terminals. This preliminary preparation allows for standardized assembly operations, reducing the need for skilled manual bending and welding techniques while maintaining manufacturing precision and improving productivity
Solution Approach 2:
The patent standardizes the geometric parameters of the electrode terminal connecting member, including the shape, size, and position of connection portions. This parameter standardization enables automated or semi-automated welding processes, reducing dependency on skilled manual techniques and increasing assembly speed while maintaining precision
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 solution simplifies the assembly process, enhances structural stability and coupling strength, reduces the need for additional members, and allows for efficient adaptation to varying numbers of battery cells, thereby improving productivity and safety while minimizing the overall size and weight of the battery module.
Implementation Method 1
the electrode terminals of the respective battery cells are coupled to the electrode terminal connecting member by welding
Data Source
AI summary
A conductive electrode terminal connecting member configured to electrically connect plate-shaped secondary battery cells (‘battery cells’) constituting a battery module to each other is provided. The electrode terminal connecting member includes a left-wing connection part to which electrode terminals of left-side battery cells are connected so as to achieve electrical connection in series or in series and in parallel between the battery cells, and a right-wing connection part to which electrode terminals of right-side battery cells are connected so as to achieve electrical connection in series or in series and in parallel between the battery cells. The left-wing connection part is provided with slits through which the electrode terminals of the respective battery cells are inserted, and the right-wing connection part is provided with slits through which the electrode terminals of the respective battery cells are inserted.