To Become the Mainstream Energy Storage Technology in the Future

Electrochemical Energy Storage

Electrochemical energy storage has the advantages of small geographical restrictions, short construction period, and continuous cost reduction. It has become the fastest growing energy storage method in recent years. Energy storage is expected to become the mainstream energy storage technology in the future.

Winsen Sensor Solutions for Energy Storage

Winsen provides spatial point detection, battery cabinet (cluster-level detection), and battery pack (pack-level detection) sensor solutions for energy storage security systems to achieve combined detection of carbon monoxide, hydrogen, smoke, VOC, flame, temperature and humidity etc, using professional sensing technology to protect the safety of energy storage.

Knowledge of Battery Thermal Runaway

What Is Battery Thermal Runaway?

What Happens Throughout the Thermal Runaway?

Battery thermal runaway often starts with the decomposition of the negative SEI film in the battery cell, and then the separator decomposes and melts, causing the negative electrode to interact with the electrolyte. Subsequently, both the positive electrode and the electrolyte will decompose, causing a large-scale internal short circuit, causing the electrolyte to burn, and then spread to other cells, causing severe thermal runaway and causing the entire battery pack to spontaneously ignite.

Three Stages of Battery Thermal Runaway

• 1. Self-generated heat stage (50℃ to 140℃)
• 2. Thermal runaway stage (140℃ to 850℃)
• 3. Thermal runaway termination stage (850℃ to normal temperature)

Measures to Protect Battery Safety

Active safety protection: Realize active protection through hazard source detection, real-time monitoring and early warning during energy storage construction and operation.

Passive safety protection: Improve emergency response and handling efficiency through reliable fire warning, automatic alarm systems, emergency measures, etc.