The Top 5 Solutions for Managing Thermal Runaway in Electric Vehicles

The rise of electric vehicles (EVs) has ushered in a new era in transportation. The benefits of using EVs are many, from less environmental pollution to lower fuel costs. However, one of the biggest concerns in using EVs is the risk of thermal runaway. Thermal runaway occurs when the temperature and pressure inside a battery increase uncontrollably, leading to an explosion or fire. In this blog post, we will look at the causes of thermal runaway in electric vehicles and discuss the top 5 solutions for managing it.

Understanding Thermal Runaway in EVs

Thermal runaway in EVs is a condition where the heat created inside a battery cannot be dissipated fast enough, leading to a rapid rise in temperature. This condition can be caused by a variety of factors such as overcharging, over-discharging, an internal or external short circuit, or physical damage to the battery. Once thermal runaway is initiated, the temperature can rise quickly, causing a violent explosion or fire that can spread rapidly.

Top Solutions for Managing Thermal Runaway

Top Solutions for Managing Thermal Runaway

1. Aircraft/Aerospace Fire Retardant

Aircraft and Aerospace Fire Retardants are designed to protect against fire and smoke in critical aviation areas. These materials can be an effective solution for managing thermal runaway in EVs. The materials are self-extinguishing, have good thermal endurance, and remain stable at high temperatures. They can provide a barrier between the cells and the surrounding environment, mitigating the spread of fire should thermal runaway occur.

2. EMI Shielding

EMI shielding is another solution for mitigating thermal runaway in EVs. EMI shielding materials are designed to protect against electromagnetic interference which can lead to thermal runaway. The materials are typically used to protect sensitive electronic components from EMI. In the case of EVs, EMI shielding can be used to protect the battery cells from unwanted electromagnetic interference, which can cause overheating, short circuits, and thermal runaway.

3. Double Coated Filmic Tape

Double-coated filmic tape is a pressure-sensitive adhesive that can be used to bond the battery cells together. The adhesive layer can provide a thermal barrier, isolating the cells from each other. This can mitigate cell-to-cell thermal runaway and keep the temperature of individual cells within a safer range, preventing the spread of fire in the case of a thermal event.

4. Advanced Thermal Batteries

Advanced thermal batteries are a promising solution for managing thermal runaway in EVs. These batteries use solid-state technologies that can dissipate heat quickly and efficiently. They also have integrated thermal management systems that can monitor and control the temperature of the battery cells, preventing thermal runaway from occurring.

5. Thermal Runaway Barrier

Thermal runaway barriers are designed to trap and contain thermal events, preventing them from spreading to adjacent cells. The barriers can be integrated into the battery design, creating compartments that isolate individual cells. The barriers can also be designed to melt and absorb heat, reducing the risk of thermal runaway.

Finding the Right Thermal Runaway Solution

Thermal runaway is a serious concern in the use of EVs. It is critical that manufacturers and designers take proactive steps to prevent thermal runaway from occurring. However, Lamart’s experienced team can work with you to find the ideal solution, providing expert advice to streamline the decision-making process. At Lamart, we offer solutions for a variety of automotive applications, from thermal runaway prevention to meeting NVH standards we got you covered. Contact the Lamart team today!

Craig Hirsh
Craig is a third-generation owner of Lamart Corporation with over ten years of experience developing custom-designed products to meet customer specifications and expectations.