Avada Car Dealer News

Gas Safety Risks: Lithium- Ion Battery Fires – HF (Hydrogen Fluoride Detector & Monitoring Systems)

Li-Ion batteries are now widely  used in mobile phones, electric vehicles, laptops including MW range of Renewable Energy Storage plants, aircrafts, submarines, mine-shafts and spacecrafts.

Gas Safety risks  in Li-Ion battery charging rooms:

  • 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  and backed by high temperature, the electrolyte in Li-Ion batteries 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 or 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)


  • 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  combustion fires)
  • Continues monitoring of humidity and temperature
  • VEFSA (Very early fire and smoke alarm)

Typical Systems:

  • Single Point stand alone gas controller for HF, CO, CO2, Temperature, Humidity
  • 1-4 channel HF, CO, CO2 Sensor/Transmitters with 4 channel Gas / PLC controller
  • Warning alarm to plant people including GSM Alarm dialler capability to mobile phones
  • DIGITAL MULTI-CHANNEL system for Renewable Energy Storage Plants for HF, CO, CO2, Temperature, Humidity
  • Save 60-80 % costs on cable, cabling, installation with our DIGITAL SYSTEM

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

Control / Alarm Functions:

  • Generate alarms for warning
  • Actuate ventilations fans to dissipate toxic gas build up or fire smoke build up
  • Shut-Off mains to protect the asset
  • VEFSA Gas Radical Sensing System can detect the gas radicals and shut off the mains/power supply thus protecting millions of dollars of assets
  • Can be integrated to the plant PLC, SCADA, DCS systems.

For more details and query please:  Contact us