Battery Cell Insulating Bracket Fixation for Tab Assembly Stability
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Solution Overview
Problem
Existing battery cells face issues with electrode assembly damage during use, leading to short circuits and poor stability, which affects safety and service life.
Innovation Solution
A battery cell design featuring an insulating bracket fixedly connected to lead-out components, with adhesive members to secure the bracket in place, and incorporating features like mounting holes and limiting parts to enhance stability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulating bracket is not fixedly connected to the lead-out components, then the assembly process is simpler, but the insulating bracket may move or displace during use, damaging the electrode assembly
Solution Approach 1:
The patent introduces an adhesive member as an intermediary substance to bond the insulating bracket to the lead-out components. This mediator enables reliable fixation without requiring complex mechanical connection structures, thus resolving the contradiction between stability and structural simplicity.
2Reliability
If adhesive members are used to bond the insulating bracket to the lead-out components, then the connection stability is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The adhesive member is applied in advance to the insulating bracket or lead-out components before assembly. This preliminary action ensures that the bonding interface is prepared beforehand, facilitating easier assembly and improving connection stability without significantly complicating the manufacturing process.
3Reliability
If the insulating bracket is securely fixed to prevent displacement, then the electrode assembly is protected from damage, but the assembly time increases
Solution Approach 1:
The patent replaces complex mechanical fixation systems with a chemical bonding approach using adhesive members. This substitution provides secure fixation to protect the electrode assembly while maintaining relatively simple and quick application processes, thus preserving assembly efficiency.
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 reduces the risk of insulating bracket displacement, improving assembly efficiency and enhancing the safety and service life of the battery cell by preventing damage to the electrode assembly.
Implementation Method 1
the adhesive member bonds with the insulating bracket and the lead-out component to make the insulating bracket fixedly connected with the lead-out component
Data Source
AI summary
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a shell, lead-out components, electrode assemblies and an insulating bracket. The shell has a first wall, and the lead-out components are connected to the first wall. The electrode assemblies are accommodated in the shell. The electrode assembly includes a main body and tabs. The tabs are provided protruding from one end of the main body facing the first wall. The tabs are connected to the lead-out components. In the thickness direction of the first wall, the insulating bracket is provided between the first wall and the main body, and the insulating bracket is fixedly connected to the lead-out components. For the battery cell of this structure, the insulating bracket can be fastened to the first wall, such that the insulating bracket is fixed in the shell.