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Product and Business Introduction

LiMEX, A specialist in suppressing metal and battery fires.

Introducing the “LiMEX” Metal Fire Extinguisher

How a battery fire develops (3 steps)

step 01

Overcharge, Over discharge, Shock or Self-Defect, etc.

  • - Overcurrent
  • - Temperature rise within the battery
step 02

Breakage of the battery separator and internal short circuit

  • - Generating flammable and toxic gases as the electrolyte decomposes
step 03

Ignition and thermal runaway phenomenon

Characteristics of lithium-ion battery fire and

“LiMEX” fire suppression solution

Mixing of powders and granules, LiMEX fire extinguisher test results

Mixing of powders and granules, LiMEX fire extinguisher test results
Testing institute Korea Conformity laboratories (KCL) Test date August 29, 2023
Li-ion battery fire model and test preparation
Fire occurrence and suppression
Results of temperature change trend after radiation
It reached below 100 degrees Celsius 7600 seconds (125 minutes) after the fire suppression began.

Features and advantages of LiMEX fire extinguisher for metal fires

  • Powder name : 3CP (Carbon Compound Ceramic Powder)
  • Particle structure : Triple-structured micro-spherical powder
  • The suffocation effect is excellent by blocking oxygen
  • By adding the graphene mixture, Excellent cooling effect due to rapid heat dissipation
  • As a micro-spherical particle, it has good fluidity and penetrates into the corners to effectively
Actual powder magnified 200x (100~150㎛)
Particle composition and structure

Related patents

  • Patents 10-2454923 : Metal and Li-ion battery fire extinguishing powder and method for producing the same
  • Patents 10-2564844 : Fire extinguishing material for lithium batteries
  • Patents 10-2551591 : Aerosol fire extinguishing foam and fire suppression method using it

Self-fire extinguisher test and results in accordance with

Class D metal fire type standards

Ignite 2.7 kg of the magnesium chip
Wait until the magnesium chip burns 50%.
Start extinguishing the fire when the flames have spread by 50%.
Fire suppression has been completed.
-The total time after ignition was 3 minutes and 8 seconds.

Purpose of the National Fire Agency's

fire extinguisher type approval and product inspection technical standards

Fire extinguishers are subject to legal mandatory certification under Article 37 of the Fire Protection Facilities Installation and Management Act, and must be certified for domestic production and distribution.
Until now, there were no certification or inspection standards for Class D fire extinguishers to effectively suppress metal fires. However, in order to suppress the indiscriminate use of unproven metal fire extinguishers, mass-produce national standard products for metal fire extinguishers, and enhance the ability to respond to metal fires, we have decided to introduce technical standards for type approval of metal fire extinguishers and product inspection that adheres to overseas standards (ISO7165, UL711) to protect the lives and property of the people. (Effective on July 25, 2024)

Excerpt from Summary of Technical Standards for

Class D Fire Extinguisher Type Approval and Product Inspection

  • Ingredients of fire extinguishing agent : Powders such as sodium chloride, graphite and copper
  • Fire extinguisher volume : Over 13.6kg
  • Fire extinguishing performance test conditions
    • - Extinguishing metal materials : Magnesium alloy chips 2.7kg or more
    • - Fire test model :
      1. A. steel floor (1m x 1m, Steel plate thickness : over 5mm )
      2. B. Metal frame (600mm x 600mm x 300mm)
  • Fire extinguishing test : Twice each, all fires must be completely extinguished
    • - 1st fire extinguishing test : Magnesium Chip 100% Extinguishment Test
    • - 2nd fire extinguishing test : 90% magnesium chips + 10% cutting oil
    • - However, the test material must not scatter outside the steel floor during the release operation.)

Main places of use

Metal processing plant
Battery Recycling Plant
Battery storage
Battery transportation facilities
Battery production plant
Golf cart charging station
laboratory
Energy storage device
Electric power equipment
UPS system room
Solar power generation facilities
Department stores, marts
Electric bicycle charging facility
Electric scooter charging facility
Electric kickboard charging facility

LiMEX package product for metal fire and battery fire response

  • Class D fire extinguisher : Excellent suffocating, cooling and reverse catalytic effects.
  • Battery charging and safety handling box
    • - Relieves anxiety about the risk of explosion when charging the battery
    • - If vapor clouds form from the battery, you can extinguish the fire by placing it in a safety box and closing it.
  • Pad-type fire extinguisher for metal fires : In the event of a battery fire, if you throw or place it on top of the fire, extinguishing agent will be released and the fire can be put out.
  • Tongs, heat-proof gloves, gas mask : These are tools for placing batteries in a safety handling box immediately when a vapor cloud occurs in .

Fire Spread Prevention Products (SGS Certified)

Fire spread prevention cover Li-69

It is a fire spread prevention product that can be reused up to 30 times.

Li-69 is a simple and effective solution to suppress fires by blocking oxygen and block the spread of toxic gases and smoke.

  • Material : 100% Fiber Glass
  • Size : 6,000 X 9,000mm
  • Thickness : 0.45±0.05mm
  • Heat resistance temperature : Maximun Celsius 1,100 degree