电池储能系统中单体电池排气的早期检测.pdf

1、Early Detection of Cell Venting in Battery Energy Storage SystemsThe Key to Fire Safety February 25,2026|12:15 12:30 Unrestricted|Siemens 2026|ESS 26|Early Detection of Cell Venting in BESS The Key to Fire SafetySiemens is located at Booth B17ContentsUnrestricted|Siemens 2026|ESS 26|Early Detection

2、of Cell Venting in BESS The Key to Fire Safety1234Background Overview of Venting PhasesWhat happens during first early venting Particle size distributionConclusionQ&A Booth B175Page 2Unrestricted|Siemens 2026|ESS 26|Early Detection of Cell Venting in BESS The Key to Fire SafetyShortCircuitBatteryAbu

3、seShort circuit inside batteryMechanical damage,heat or overchargingVisibleSmokeSeparator DecompositioningTemperatureincreasingThermal Runaway&Gas ExplosionsSeparator Collapse“Thermal Runaway”OpenFireOpen Fire and risk propagationThermal runaway timing depends on both the abuse type and battery chem

4、istry.The critical window is from initial venting to separator collapse typically 30 seconds to 10 minutes.Once the separator fails,fire can develop rapidly.Early detection and intervention during this interval are essential for effective risk mitigation.Background overview of venting phasesPage 3In

5、visibleAerosolEarlyVenting Electrolyte vapor and gases releasedUnrestricted|Siemens 2026|ESS 26|Early Detection of Cell Venting in BESS The Key to Fire SafetyPage 4Smoke:What happens during first early venting?Key emissions profileUnrestricted|Siemens 2026|ESS 26|Early Detection of Cell Venting in B

6、ESS The Key to Fire SafetyPage 5Dimethyl carbonateEthanePropaneMethaneHexaneCarbon monoxideCarbon dioxideFormic acidSmoke blueSmoke ired0,080Smok(a.u.)Gas(ppm)40020000,08VentingAlarm29:40:0004002000Time(s)Gas:0,0804002000GasParticleVentingParticle size distributionUnrestricted|Si