Prevent Thermal Runaway: Microporous Insulation Panels for Battery Safety

Lithium-ion batteries in hybrid and electric vehicles require precise ambient temperature control to operate safely. A critical concern is thermal runaway, which occurs when a cell’s temperature spikes rapidly. To mitigate this risk, battery design engineers prioritize thermal management. Advanced systems incorporate solutions like thermal insulation pads and thermally conductive tapes, offering multi-level protection at the cell-to-cell, module-to-module, and pack-level scales.

In lithium-ion Battery Energy Storage Systems, the occurrence of thermal runaway may lead to substantial property losses and potential safety risks. By applying microporous thermal insulation panels between battery cells, thermal runaway propagation can be effectively prevented, thereby significantly enhancing the overall system safety.

Unicorn provides custom flexible microporous insulation solutions that are incorporated into battery design at the cell level to aid with fire protection. Composed mainly of fumed silica, opacifying agents, and heat-resistant fibers, our product delivers outstanding thermal insulation and fire resistance. When used as a battery thermal barrier between cells, it efficiently prevents thermal runaway propagation.

Key features of microporous insulation panels are:

• Extremely high temperature resistance – up to 1200℃
• Excellent thermal insulation properties – thermal conductivity as low as 0.038 W/m K at 800℃.
• Thin profiles – our panel thickness is as thin as 0.8 mm, with even thinner versions currently under development.
• Customizable sizes with easy processing and installation.
• Superior dielectric and anti-aging properties

Typical product: TT 1000 classic LB