Gas Measuring Device for Secondary Battery Ignition Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gas measuring apparatuses for secondary batteries are inadequate in efficiently collecting and analyzing gases and harmful components generated during ignition, lacking effective means to maintain sealability and prevent gas discharge.
Innovation Solution
A gas measuring apparatus with a heated chamber, a collecting tube, and cooling means to maintain sealability, using a heater unit to ignite the battery and a vacuum unit to collect gases, while a holder made of heat-resistant and high-strength materials blocks external risks, and a gas analysis part to analyze components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the chamber is heated to ignite the secondary battery, then the gas generation and collection function is improved, but the sealability of the chamber deteriorates due to heat damage to the sealing member
Solution Approach 1:
The system is divided into two thermal zones: the chamber (first space) is heated to high temperature for battery ignition, while the sealing member region (second space) is actively cooled to maintain sealability. This spatial segmentation of thermal conditions allows simultaneous achievement of ignition temperature and sealing member protection.
Solution Approach 2:
A cooling means acts as an intermediary element between the heated chamber and the sealing member. The cooling means includes a cooling channel through which coolant flows to extract heat from the sealing member region, preventing direct thermal damage while allowing the chamber to reach ignition temperature.
2Ease of operation
If simple gas collection method is used, then the ease of operation is improved, but the measurement precision of gas amount and harmful components deteriorates
Solution Approach 1:
The harmful components and gas mixture are extracted from the chamber through a collecting tube connected to a vacuum unit. The vacuum unit creates negative pressure to actively draw out the gases, separating them from the ignition environment. This extraction method is simpler than direct sampling but maintains precision through subsequent analysis by the gas analysis part.
Solution Approach 2:
Manual gas sampling operations are replaced by an automated vacuum extraction system. The vacuum unit automatically draws gases through the collecting tube, eliminating the need for complex manual sampling procedures while ensuring consistent and precise gas collection for analysis.
3Stability of the object's composition
If heat-resistant materials are used for the holder, then the stability under thermal stress is improved, but the device complexity increases
Solution Approach 1:
The holder is constructed from composite materials that combine heat resistance with structural strength. Specifically, the holder uses a ceramic material (such as alumina) that provides both thermal stability for withstanding ignition temperatures and mechanical strength for supporting the chamber and other components. This single material solution avoids the need for complex multi-layer composite structures.
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
Enables easy sampling and analysis of gases generated during secondary battery ignition, maintaining sealability and preventing harmful gas discharge, thereby improving stability and safety.
Implementation Method 1
a heater unit (120) which applies heat to the secondary battery (10) to ignite the secondary battery (10)
Implementation Method 2
a cooling means (117) which cools the sealing member (114) to prevent the sealing member (114) from being damaged by heat
Implementation Method 3
a vacuum unit (140) which vacuumizes the chamber (110) to extract a gas generated when the secondary battery (10) is ignited
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A gas measuring apparatus for a secondary battery comprises: a chamber accommodating a secondary battery therein; a heater unit applying heat to the chamber to ignite the secondary battery accommodated in the chamber; a collection tube connected to the inside of the chamber to collect a gas generated in the secondary battery; a vacuum unit connected to the collection tube to vacuumize the inside of the chamber so as to introduce the gas into the collection tube; and a gas measuring unit measuring an amount of gas introduced into the collection tube.