Battery Cell Support Partition for Binder Isolation and Venting
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Solution Overview
Problem
The assembly efficiency of cylindrical battery cells into large-capacity battery packs is a significant challenge in the development of electric vehicles, requiring improved methods to ensure stability and safety while maintaining efficient installation processes.
Innovation Solution
A battery design that separates the internal space of a box into two chambers, where one chamber houses a pressure relief mechanism and the other a binder, allowing for stable fixation of battery cells and preventing binder overflow, ensuring the pressure relief mechanism's functionality and safety performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the box is used to accommodate both the pressure relief mechanism and the binder, then the assembly process is simplified, but the binder may overflow and affect the pressure relief mechanism's functionality
Solution Approach 1:
The box is divided into a first chamber and a second chamber by a partition. The first chamber accommodates the pressure relief mechanism, while the second chamber accommodates the binder. This segmentation prevents the binder from overflowing into the pressure relief mechanism area, ensuring both components can function reliably without interfering with each other.
2Stability of the object's composition
If the battery cell is fixed using a binder injected into the box, then the fixation is stable, but the binder may overflow and cause assembly complexity
Solution Approach 1:
The box is segmented into two chambers with the partition preventing binder overflow. This ensures stable fixation of the battery cell while avoiding the complexity of managing binder overflow and protecting the pressure relief mechanism.
Solution Approach 2:
The partition acts as an intermediary barrier between the binder and the pressure relief mechanism. It allows the binder to be injected into the second chamber for stable fixation while preventing it from reaching the first chamber where the pressure relief mechanism is located.
3Volume of stationary object
If the pressure relief mechanism is placed in the same chamber as the binder, then the space utilization is improved, but the safety performance is compromised
Solution Approach 1:
The box is divided into two separate chambers by a partition. The first chamber houses the pressure relief mechanism while the second chamber contains the binder. This segmentation ensures that even though both components are within the box, they are physically isolated, preventing binder overflow from compromising the pressure relief mechanism's safety function.
Data Source
AI summary
A battery, an electric device, and a method and device for manufacturing battery are provided. The battery includes: a battery cell; a support for supporting the battery cell; and a box for accommodating the support and the battery cell. The support separates the box into a first chamber and a second chamber. The first chamber is configured to accommodate a first portion of the battery cell, the first portion is provided with a pressure relief mechanism. The second chamber is configured to accommodate a second portion of the battery cell and a binder In the second chamber, the second portion, the support, and the box are fixedly connected through the binder. The pressure relief mechanism actuates when internal pressure of the battery cell reaches a threshold to release the internal pressure.