Chery Super Hybrid Battery Survives 1000°C Fire Safety Test

Chery Auto Malaysia has demonstrated the resilience of its Chery Super Hybrid battery through an extreme fire safety test designed to validate thermal stability and structural integrity. The battery, used in the Tiggo 7 PHEV and Tiggo 8 PHEV, was exposed to temperatures exceeding 1,000 degrees Celsius. Despite this intense environment, the 18.3 kWh LFP battery pack remained structurally intact, highlighting the robustness of its design and the company’s emphasis on safety-focused engineering in hybrid vehicle systems.

Extreme Fire Test Demonstrates Thermal Stability

During the test, 36 litres of petrol were ignited to generate sustained high temperatures, after which the battery pack was suspended directly over the flames for 80 seconds. While the outer casing showed visible signs of heat exposure, the internal battery cells remained unaffected. There was no electrical malfunction, deformation, or thermal runaway observed. The absence of uncontrolled combustion ensured that the fire remained contained, validating the battery’s ability to handle extreme thermal stress without compromising safety.

Advanced Design Prevents Fire Propagation

The battery incorporates a heat-resistant structure specifically engineered to prevent the spread of fire, even in ignition scenarios. According to company insights, the system can tolerate temperatures up to 95 degrees Celsius under standard operating stress conditions. Additionally, a reinforced crossmember enhances crash protection by maintaining structural integrity during collisions. These features collectively contribute to minimizing risk during both thermal and mechanical stress events, reinforcing the battery’s safety credentials in real-world applications.

Rapid Safety Response Through Pyrotechnic Switch

A key safety mechanism within the hybrid system is the continuous monitoring of thermal conditions. If early signs of thermal runaway are detected, a pyrotechnic safety switch instantly disconnects the battery within two milliseconds. This rapid isolation reduces the likelihood of fire escalation and provides crucial time for occupants to exit the vehicle safely. Such integration of active safety systems reflects a layered approach to battery protection, combining prevention, detection, and response.

Global Validation Across Extreme Conditions

Beyond fire testing, Chery Auto Malaysia has subjected the battery to multiple extreme validation scenarios across global locations. In China, a Tiggo 9 PHEV underwent both head-on collision and rollover tests. In Indonesia, the battery was submerged in seawater for over 53 hours and later reinstalled successfully in a Tiggo 8 PHEV, which continued to operate normally. These tests demonstrate resistance to both mechanical damage and environmental exposure.

Impact and Structural Durability Testing

Additional evaluations include an underbody impact test in Mexico, where a Tiggo 7 PHEV endured contact with a low bollard without battery damage. In South Africa, offset frontal crash testing further validated structural resilience. Notably, in Ecuador, the battery was subjected to ballistic testing involving rifle shots from multiple angles, yet maintained integrity. These comprehensive tests underline the battery’s ability to withstand diverse and extreme real-world conditions.

Safety-Centric Development Philosophy

The company emphasizes that safety remains central to its engineering and validation processes. By publicly demonstrating these rigorous tests, it aims to build transparency and trust while showcasing the underlying technology and standards. The combination of thermal resistance, structural reinforcement, and rapid-response safety systems positions the Chery Super Hybrid battery as a robust solution in the evolving hybrid vehicle landscape.

Frequently Asked Questions

How does the Chery Super Hybrid battery ensure safety under extreme conditions?
The Chery Super Hybrid battery uses a combination of heat-resistant materials, structural reinforcement, and active monitoring systems to ensure safety under extreme conditions. It can withstand high temperatures without triggering thermal runaway and includes a pyrotechnic safety switch that disconnects the battery within milliseconds if a risk is detected. Extensive global testing, including fire exposure, crash scenarios, water submersion, and impact events, further validates its durability and reliability in real-world situations.