Comparison Table - Lithium Fire Protection Products
| Criterion | Water | Water + Wetting Agent | Special extinguishing agents (e.g., Lithium extinguishing agents) | Powder (Metal fire) | Gas extinguishing system (CO₂ / Inert gas) | Battery containment system |
|---|---|---|---|---|---|---|
| Suitable for lithium-ion batteries | Limited | Better than pure water | Very suitable | Only for metal lithium | Contingent | Yes, additionally |
| Cooling Effect | Very high | Very high with better penetration depth | Very high and targeted | Low | No direct cooling | Indirect |
| Prevention of Thermal Runaway | Limited | Better | Specifically designed | No | No | Only containment |
| Reignite Risk | High | Medium | Low | High | High | Medium |
| Penetration Depth in Battery Module | Low | Increased | Optimized | None | None | None |
| Smoke Gas Reduction | Partial | Partial | Supportive | Low | Oxygen reduction | No direct effect |
| Use in Enclosed Spaces | Yes | Yes | Yes | Limited | Yes (with safety plan) | Yes |
| Consequential Damage from Use | High (water damage) | Medium | Reduced with targeted use | High contamination | Low residues | Low |
| Environmental Impact of Extinguishing Agents | Low | Dependent on additive | Dependent on composition | Low | Low | Low |
| Application Method | Hose / Sprinkler | Additive system | Special system or manual | Hand extinguisher | Stationary | Box / Container |
| Suitable for EV / Energy Storage | Limited | Better | Yes | No | Only limited | Yes, additionally |
| Cost-Benefit Ratio | Low | Medium | Higher, but risk-reducing | Medium | High | Investment solution |
Classification of Systems
- Water – Standard measure with high cooling effect, but high water demand and risk of re-ignition.
- Water with Additive – Improved penetration depth and cooling effect, more efficient use, reduced water amounts.
- Special Lithium Extinguishing Agent – Designed to interrupt thermal reactions and provide cooling. Particularly suitable for EV fires, battery storage, and industrial applications.
- Metal Fire Powder – Only suitable for genuine lithium metal. Not for lithium-ion batteries with electrolyte fire.
- Gas Extinguishing Systems – Useful for room protection, but no direct cooling of the cells. Additional protective measure.
- Battery Containment Systems – Serve to contain and isolate burning batteries. Not a primary extinguishing agent, but a protective and transport solution.
Decision factors in lithium fire protection
| Decision Question | Relevance |
|---|---|
| What is the energy density of the battery? | Determines cooling needs |
| Is it a single cell or a large storage system? | Determines extinguishing strategy |
| Is the fire open or enclosed in the module? | Determines penetration depth |
| Is there a risk of re-ignition? | Requires sustainable cooling |
| What environmental protection regulations apply? | Influences the choice of extinguishing agent |
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