Partitioned Battery Test Chamber for Thermal Runaway Isolation
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Solution Overview
Problem
Existing secondary battery testing methods are inadequate for simulating thermal runaway conditions, leading to safety concerns and inefficiencies in performance evaluation, particularly in terms of cost, time, and resource utilization.
Innovation Solution
A secondary battery test apparatus and method that includes an inner case with partition spaces and barrier covers to isolate and test multiple batteries and barriers, allowing for controlled thermal runaway simulations while minimizing cross-contamination and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple batteries are tested simultaneously in a single apparatus, then testing efficiency and resource utilization improve, but cross-contamination between batteries may occur leading to unreliable test results
Solution Approach 1:
The inner case is divided into multiple partition spaces that physically separate different batteries during testing. Each partition space acts as an independent testing chamber, allowing simultaneous testing of multiple batteries without cross-contamination. The partition spaces are formed by barriers positioned between adjacent batteries, creating distinct compartments within the same apparatus.
Solution Approach 2:
Barrier covers are introduced as intermediary components that seal the spaces between barriers and the inner case. These barrier covers fasten to the barriers and create airtight seals, preventing thermal runaway propagation and gas exchange between adjacent partition spaces. The barrier covers act as mediators that enable simultaneous testing while maintaining isolation between test subjects.
2Reliability
If barrier covers are added to seal partition spaces, then isolation between batteries improves, but device complexity increases
Solution Approach 1:
The barrier and barrier cover function as integrated components that work together to form the partition structure. The barrier cover fastens to the barrier, combining the functions of partitioning and sealing into a unified structure. This merging reduces the need for separate complex sealing mechanisms while achieving reliable isolation between partition spaces.
Solution Approach 2:
The barrier covers function as sealing elements that conform to the spaces between barriers and the inner case. These covers provide flexible sealing solutions that adapt to the geometry of the partition spaces, achieving effective isolation without requiring rigid complex sealing structures. The barrier covers act as thin film seals that prevent gas and heat transfer between compartments.
Data Source
AI summary
A secondary battery test apparatus and a test method using the same are disclosed. According to one aspect of the present disclosure, there is provided a secondary battery test apparatus including an outer case having an inner chamber, and an inner case disposed in the inner chamber, wherein the inner case includes a plurality of partition spaces, in which each secondary battery, which is a test subject, is disposed, and a barrier cover that is fastened to a barrier, which is a test subject, between adjacent partition spaces to seal a space between the barrier and the inner case between the adjacent partition spaces.