Battery Cell Housing Assembly With Bent Lead-Out Member
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Solution Overview
Problem
Existing battery cells face difficulties in efficient assembly due to challenges in connecting the bare cell with the electrode component when the electrode component is not disposed on the top cover, leading to installation complications and reduced energy density.
Innovation Solution
The battery cell design includes a housing with an opening on its largest side for installing the bare cell, utilizing a bent electrode lead-out member that connects to the electrode component, allowing for efficient assembly and reducing space occupancy, thereby improving energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electrode component is disposed on the top cover, then the bare cell can be installed into the housing, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The electrode component is integrated directly onto the housing structure, merging two previously separate components (electrode component and housing) into one unified structure. This eliminates the need for separate installation steps and simplifies the assembly process while maintaining electrical connectivity.
Solution Approach 2:
The electrode component is pre-installed on the housing before the bare cell is placed inside. This preliminary action allows the bare cell to be directly connected to the electrode component upon insertion, eliminating subsequent connection steps and reducing assembly complexity.
2Quantity of substance
If the electrode lead-out member is made straight, then the connection is simple, but it occupies more space and reduces energy density
Solution Approach 1:
The electrode lead-out member is designed with a bent structure instead of a straight configuration. This curvature allows the lead-out member to fit into available spaces more efficiently, reducing the overall volume it occupies within the battery cell while maintaining its electrical connection function.
Solution Approach 2:
The lead-out member utilizes three-dimensional spatial arrangement by bending in multiple directions rather than extending linearly. This dimensional optimization allows it to navigate around other components and occupy less linear space while still achieving the necessary electrical connection.
3Ease of operation
If the opening is located on a smaller side of the housing, then the top cover fits better, but the bare cell installation becomes difficult
Solution Approach 1:
The housing is designed with an asymmetric opening configuration where the opening is strategically positioned on a specific side to optimize both the insertion path for the bare cell and the fit for the top cover. This asymmetric design allows the larger opening to facilitate easy cell installation while the overall housing geometry maintains proper top cover alignment.
Data Source
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AI summary
Disclosed are a method for manufacturing a battery cell (20), a battery cell (20), a battery (100), and an electric apparatus. The method for manufacturing a battery cell (20) includes: connecting an electrode lead-out member (221) of a bare cell (22) to an electrode component (25); bending the connected electrode lead-out member (221) to allow the bare cell (22) to enter an accommodating space (212) of a housing (21) through an opening (2121), the opening (2121) of the housing (21) being a side with the largest area of the housing (21); and connecting a top cover (24) to the housing (21) to close the opening (2121). The bare cell (22) of the battery cell (20) can be conveniently installed in situations where the electrode component (25) is not disposed on the top cover (24).