Real-time Measurement of Generated Gas from Safety Testing of Rechargeable Batteries

Lithium-Ion batteries (LIB) are widely used in many familiar products due to their high capacity and lightweight.  Conduction various battery tests ensure safety, which avoids accidents involving smoke and fire. Analysis of gases generated during safety tests provides useful information on the safety of the products and the development of battery materials. In this section, we featured some examples of real-time analysis of gas components that are generated during safety tests.


  • Detailed analysis of the composition of the generated gas can be done by gas chromatography or other methods, but it takes time to acquire the data.
  • Want to measure the gases generated during safety tests in real time, to study the behavior of abnormal conditions and formulate a battery replacement cycle.
  • Want to check whether CO gas generated during the nail penetration test of lithium-ion batteries flows into the vehicle.

Measurement Examples

As part of the safety evaluation for the development of electric vehicles (electric and plug-in hybrid), HORIBA analyzers are used. For the nail penetration test for lithium-ion battery inside the vehicle to measure any inflow of CO gases. During the heat tests to measure the real-time the concentration of CO and CO₂.

CO measurement inside the vehicle during the battery nail penetration test

                Battery heat test


Detailed analysis of the composition of the generated gas is done by gas chromatography and other methods. When a portable gas analyzer is used in conjunction with a heating test or nail penetration test, the gas generated during the test can be measured in real-time. This contributes to the research of the behavior under abnormal conditions and the formulation of battery replacement cycles.

HORIBA’s Solutions

Portable Gas Analyzer PG-300 Series Features
  • Support measurements in the field with even greater functionality and portability.
  • Intuitive LCD display with color touch panel for easy operation
  • Up to five components can be analyzed simultaneously

A color trend graph that displays measurement results in real time 

HORIBA provides other continuous measurement of components other than those listed above. 
Please do not hesitate to contact your nearest sales representative or sales office.

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