Lithium-ion battery (LIB4) In the process of use, storage or transportation, if it is subjected to external overload (overcharge or short circuit, vibration, impact, high and low temperature, etc.), the following phenomena will occur:

l   thermal runaway

l   Electrolyte leakage

l   Internal gas leakage due to rising internal pressure

l   Thermal decomposition reaction of electrolyte, etc.

The so-called thermal runaway refers to lithium-ion batteries (LIB) The heat generated during charging and discharging causes the internal temperature to rise, which in turn causes the battery to run out of control.

These problems are due to the lithium ion battery (LIB) internal electrolyte by high temperature,Pressure and other external forces caused by rapid heating, and may even lead to fire, explosion and other major accidents.

Overheating-Smoke

Fire caused by fire

When an abnormality occurs in a lithium ion battery (LIB), a hydrocarbon VOC gas (EMC, DMC, ECD, or the like) is present in addition to hydrogen (H2), carbon monoxide (CO), methane (CH4), and carbon dioxide (CO2) as main components of the gas generated. These hydrocarbon VOC gases are generally considered to be the organic solvents in the LIB electrolyte or their thermal decomposition products.

Under normal circumstances, the content of these gases in the air is very low except CO2. Therefore, our customers judge whether the battery is thermally out of control by detecting the concentration changes of H2, CO and CH4, and issue an alarm in time if there is any abnormality to remind personnel to evacuate and reduce losses.

By installing the following various gas sensors in the safety device of the LIB application equipment, various gases generated when an abnormality occurs in the lithium ion battery (LIB) can be detected early even in a place where it is difficult to monitor manually, and a major accident caused by the abnormality of the LIB can be prevented.

Hydrogen (H2) sensor TGS2616

Carbon Monoxide (CO) Sensor TGS5141/TGS5042

VOC Sensor TGS2620

Carbon Dioxide (CO2) Sensor CDM7162-C00

Methane (CH4) sensor TGS2619/TGS2611

      In the following applications, in order to improve the safety of lithium-ion batteries, the use of hydrogen (H2), carbon monoxide (CO), VOC gas, methane (CH4), carbon dioxide (CO2) and other sensors can play a significant effect。

energy storage system

Large standby power supply

Lithium-ion battery manufacturing plant

Equipment for industrial use

Electric vehicle

   Please consult for details.