Breaking through the pain points of battery safety: How does the Cummins HSI material respond to the new regulations of GB38031-2025

With the arrival of GB38031-2025 "Safety Requirements for Power Batteries for Electric Vehicles", battery safety has been pushed to an unprecedented level. The most critical and challenging requirement among them - thermal diffusion testing - has put the entire industry on high alert: after a single battery cell loses thermal control, the battery system must not ignite or explode within the specified time, and battery smoke must not cause harm to passengers. Safety has become a core competitive barrier.
Traditional thermal diffusion protection solutions are often inadequate: materials are prone to deformation and failure at high temperatures, insufficient flame retardancy leads to the spread of highly toxic smoke, and low heat dissipation efficiency accelerates the spread of thermal runaway ..

The new national standard is like a hanging sword, forcing the industry to upgrade!

The Koleos HSI high shear insulation material is an innovative solution designed to solve the safety problems of the new national standard
High temperature protection: The thermal deformation temperature has exceeded 120 ℃
When thermal runaway causes local high temperature rampage, traditional materials soften and deform, and their functions fail, HSI materials can still maintain structural integrity and insulation performance, effectively blocking the spread of high temperature and winning valuable escape time windows for passengers.
Flame retardant performance: Passed strict UL 94 V-0 certification
HSI materials can instantly produce a powerful self extinguishing effect when exposed to extreme high temperatures or open flames, suppressing flame propagation from the root and significantly reducing the production of toxic and harmful smoke, fully meeting the strict requirements of the new national standard for smoke safety.
Heat dissipation performance: thermal conductivity exceeding 0.4 W/(m · K)
Passive defense is better than active guidance! The excellent thermal conductivity of HSI materials can quickly "guide and disperse" local overheating in the early stages of thermal runaway, avoiding the accumulation of hot spots and triggering chain reactions, greatly delaying the spread of thermal runaway throughout the battery pack.