Core of Energy Storage Safety Early Warning! 3 Sensors Guard the "First Line of Defense" Against Thermal Runaway

As a key project for capturing, storing and releasing energy on demand, energy storage projects have been widely applied in power systems, new energy vehicles, household energy storage and other fields. Through technologies such as pumped storage, lithium batteries and compressed air, they not only ensure grid stability but also promote the consumption of renewable energy. However, with the frequent occurrence of thermal runaway fire accidents in lithium-ion batteries, safety has become a focus of the industry, and gas detection is the core means to prevent thermal runaway from escalating into explosions.

I. Energy Storage Safety Pain Point: These Gases Are the "Invisible Killers" of Thermal Runaway

Safety accidents caused by thermal runaway of lithium batteries stem from various hazardous gases released during the process, coupled with potential hydrogen leakage in hydrogen energy storage systems, which together constitute safety hazards:

• Early stage of thermal runaway: The Solid Electrolyte Interface (SEI) film on the negative electrode decomposes, the separator melts and shrinks, releasing hydrogen (H₂) and Volatile Organic Compounds (VOCs);

• Intensified stage of thermal runaway: Short circuit between positive and negative electrodes triggers violent reactions, producing carbon monoxide (CO), methane (CH₄), ethylene (C₂H₄), etc.;

• Core risk: Most of these gases are flammable/toxic. Once their concentration reaches the Lower Flammable Limit (LFL), they may ignite and explode when exposed to open flames or high temperatures, endangering personal and equipment safety.

Therefore, accurate monitoring of characteristic gases such as H₂, VOCs and CO is crucial for early warning of thermal runaway and preventing danger escalation.

II. Core Solution: MST Combined Sensors Cover Full-Stage Early Warning of Thermal Runaway

To meet the gas monitoring needs of energy storage projects, our company launches a "full-stage early warning combined solution" — MST136 spectral gas sensor + MST140/MST141 electrochemical sensors, which balance high-precision detection and rapid response, perfectly adapting to different scenarios such as lithium battery and hydrogen energy storage.

1. Early Warning: MST136 Air Quality (Odor) Sensor

In the early stage of thermal runaway, VOCs are the first to be released during the gas emission phase, serving as "early warning signals". As a broad-spectrum gas sensor, MST136 has extremely high sensitivity to trace reducing gases (including VOCs), which can capture abnormal signals before the battery reaches the critical temperature, gaining valuable response time for staff.

• Core Advantages: High sensitivity, low cost, long service life and low power consumption, suitable for long-term monitoring needs of energy storage projects;

• Core Function: Trigger "suspicious" early warning and initiate preliminary inspection procedures.

2. Risk Confirmation: MST141 Electrochemical Gas Sensor

As thermal runaway progresses, lithium batteries release a large amount of hydrogen (H₂). Being highly flammable and explosive, hydrogen is a core indicator for judging risk escalation. MST141 can quickly and accurately monitor hydrogen concentration, providing real-time insight into flammable gas accumulation.

• Core Advantages: Fast response speed and high detection accuracy, capable of capturing concentration changes precisely;

• Core Function: Confirm risk level, guiding staff to take intervention measures such as ventilation and power cut to avoid explosions.

3. Emergency Response: MST140 Electrochemical Sensor

A significant rise in carbon monoxide (CO) concentration indicates that thermal runaway has entered a violent and more dangerous stage, possibly accompanied by open flames or high temperatures. At this point, inspectors must wear portable detectors, and real-time preventive monitoring should be conducted in advance. MST140 has an extremely fast response to carbon monoxide and a unique anti-leakage structure, suitable for preventive monitoring and portable detection applications.

• Core Advantages: Ultra-fast response and reliable structure, suitable for both fixed monitoring and mobile inspection;

• Core Function: Issue "action" alarm, reminding personnel to evacuate urgently and activate emergency response.

The combined monitoring of "H₂ + TVOC + CO" realizes a precise decision-making process from "suspicious warning → risk confirmation → emergency response", firmly guarding the safety line of energy storage projects.

Friendly Reminder

Gas detection in energy storage projects should focus on "full-stage coverage" and "rapid response": rely on VOCs monitoring to capture early signs, use hydrogen to confirm risks in the middle stage, and rely on carbon monoxide to warn of emergencies in the later stage. Sensors should be prioritized deployed in battery compartments, dead corners of energy storage cabinets and gas accumulation areas to ensure no monitoring blind spots.

Interactive Guidance

Is your energy storage project facing thermal runaway early warning challenges? Or do you want to learn about the specific adaptation plans of MST combined sensors (such as lithium battery energy storage, hydrogen energy storage scenarios)? Welcome to send a private message with "Energy Storage Sensor + Project Type", and we will provide you with one-on-one technical consultation and customized solutions!