Gas Safety Risks of Lithium-Ion Battery
Gas Safety Risks of Li-Ion Battery Charging Rooms
| Li-Ion Battery Charging Rooms | Li-Ion Batteries Charging, Storage Plants | Li-Ion Batteries Short Circuit Fires |
| Li-Ion Batteries Fires Due to Over-Charging | Hydrogen Fluoride Gas Threats from Li-Ion Batteries | HF TWA: 3 ppm, STEL 6 ppm, NIOSH USA Heavier than Air |
- Li-Ion batteries are now widely being used in mobile phones, electric vehicles, laptops including MW range of Renewable Energy Storage plants, aircraft, submarine, mine-shaft, spacecrafts
- Li-Ion batteries when overcharged or short circuited are overheated and catch fires
- Li-Ion battery fires have caused great concern because of risks due to spontaneous fires and intense heat generated by such fires
- As a result of the above-said a lethal amount of toxic Hydrogen Fluoride Gas, HF is generated
- HF from Li-Ion battery fires can pose severe gas safety risks in confined spaces like battery charging rooms, renewable energy storage plants in solar or wind power plants
- The electrolyte in Li-Ion battery is flammable and generally contains Lithium Hexa-Fluoro-Phosphate (LiPF6)
- In the event of overheating due to overcharging or short circuiting in Li-Ion Batteries backed by high temperature, the electrolyte will vaporise liberating toxic gases like CO, CO2, HF (Hydrogen Fluoride)
- The moisture and humidity will further exacerbate the situation generating more HF (reaction of LiPF6 with water, humidity)
- Typical HF concentration expected can be as high as 20-200 ppm of HF (NIOSH/USA Safety limit, TWA:3 ppm HF, STEL: 6 ppm HF)
Solutions :
- Continuous monitoring of HF, Hydrogen Fluoride in Toxic Range of NIOSH/USA : 0-10 ppm
- Continuous monitoring of other toxic gases like CO, CO2 (gases generated due to the combustions
fires) - Continues monitoring of humidity and temperature
- Other Parameters like: CO, CO2, Temperature, Humidity, VEFSA (Very Early Fire and Smoke Alarm)
VEFSA : Very Early Fire and Smoke Alarm : For very early fire detection in electrical cabinets, switchgear rooms. Our sensing system is designed to pick up enhanced gas radicals which are liberated during overheating of PCBs, electrical insulation breakdown due to short circuit or earth fault, transformer insulation breakdown, again due to short circuit or earth fault. Please note by the time the conventional fire detection system like VESDA or conventional smoke sensors pick up the smoke, it is already too late. Our VEFSA Gas Radical Sensing System can detect the gas radicals and shut off the mains/power supply thus protecting
millions of dollars of assets
Should you have any questions or concerns regarding this matter, please feel free to contact us or reach our experts to info@alviautomation.com, sales@gasalarm.com.au
Be sure, Be safe – Gas Detectors and Alarm System
