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Developing a seamless heat-activated fire barrier for EV aluminum parts
  • Background
  • What we're looking for
  • What we can offer you
  • Who we are
  • Q&A
Background

The proliferation of electric vehicles (EVs) is imperative for a promising future for sustainable transportation. However, the industry faces a critical challenge in ensuring the safety of EV battery systems, particularly concerning thermal management and fire prevention. Thermal runaway occurs when battery temperatures escalate uncontrollably, poses a significant hazard to both vehicle occupants and surrounding infrastructure. 

 

Current thermal management solutions often rely on thick, dense, and brittle fire barriers, adding weight, cost, and complexity to EV designs. To address this challenge effectively, industry and academia must collaborate to pioneer innovative solutions that enhance safety without compromising performance.

What we're looking for

We invite innovators from industry and academia to develop a seamless fire barrier specifically engineered for application directly onto aluminum coils that will become part of an electric vehicle battery systems. This heat-activated barrier should demonstrate the ability to mitigate thermal runaway events by swiftly containing and suppressing fires within the battery compartment.

Our must-have requirements are:
  • Fire barrier must be applied and seamlessly adhere to aluminum coils without compromising their structural integrity or electrical conductivity, surviving manufacturing processes without degradation.
  • The barrier should activate rapidly in response to elevated temperatures, effectively containing thermal runaway events and preventing the spread of fire to neighboring cells or components.
  • To minimize the impact on vehicle weight and packaging constraints, the fire barrier should be lightweight and have a minimal profile.
  • The developed solution must withstand the rigors of automotive environments, including exposure to vibrations, mechanical stresses, and temperature variations over the vehicle's operational lifespan.
Our nice-to-have's are:
  • The proposed barrier should meet or exceed regulatory safety standards and undergo rigorous testing to validate its effectiveness in real-world scenarios.
  • Solutions should be economically viable for mass production, ensuring affordability and scalability across the electric vehicle market.
What's out of scope:
  • Materials requiring applications after component manufacturing.
Acceptable technology readiness levels (TRL):
Levels 2-9
What we can offer you
Eligible partnership models:
Sponsored researchCo-developmentSupply/purchase
Benefits:
Sponsored Research
Up to $50,000 based on evaluation of proposal, with additional potential funding for further development.
Expertise
Partners will have access to industry experts in specific aluminum processes, surface engineering, and material properties. A company champion will be provided to ensure collaborative success.
Tools and Technologies
Partners can be supplied with aluminum substrate for the purpose of testing proposed technology and formed aluminum parts for prototype testing. There is potential for industry-wide commercialization.
Data
Partner will be supplied with information regarding thermal runaway scenarios, battery enclosure designs, and testing protocols.
Facilities and Services
Partners will have access to our internal fire testing capabilities and other evaluation equipment located in our research facilities.
Who we are

The Novelis R&D mission is to be the leading provider of sustainable and innovative aluminum solutions. Our team delivers industry-leading technical expertise and innovative solutions via our applied technology labs around the world. Our engineers, scientists, metallurgists, chemists and computer scientists have set the standard for aluminum alloys. Owning more than 134 automotive-specific patents, we are committed to continuing to lead the industry in innovation. We win by shaping partnerships inside the company and around the globe. Because lasting innovation doesn't happen alone. The ability to think big and act bold is at our core. It's how our breakthroughs happen. It's how we brought one of the first all-aluminum vehicle bodies to the automotive industry.

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Reviewers
Q&A with Novelis

The Q&A is now closed.

Sort by:
Q.
What are the targeted thermal conductivity, mechanical strength and weight/density?
1
A.
Thank you for your question! We are getting used to Halo so it has taken us a bit to respond. We envision the parent metal will provide the majority of mechanical properties and material attributes for the application. We are considering the barrier to be seamlessly applied to the material and only "activate" when needed. The barrier needs to protect (for a period of time) the degradation of the material used for the battery enclosure in case of thermal runaway of the battery system.
TK
Tina Kosmicki, Sr. Manager R&D Ecosystems, Novelis
March 26, 2024
Is this response helpful?
0
0
Q.
Could you please specify where the aluminum coils are used? Inside the cell - as current collector or outside the cell - as battery packaging material. Thanks!
1
A.
Thank you for your question! We are getting used to Halo so it has taken us a bit to respond. The aluminum will be used as the battery packaging (i.e. enclosure and modules). We envision the parent metal will provide the majority of mechanical properties and material attributes for the application. We are considering the barrier to be seamlessly applied to the material and only "activate" when needed. The barrier needs to protect (for a period of time) the degradation of the material used for the battery enclosure in case of thermal runaway of the battery system.
TK
Tina Kosmicki, Sr. Manager R&D Ecosystems, Novelis
March 26, 2024
Is this response helpful?
1
0
A.
Thank you so much Tina for your reply!
1
Q.
Thermagel Innovations can offer several forms of aerogels that can be sprayed or formed to prevent battery runaway problems. Tested by the US Navy, our aerogels does not use expensive super critical drying so low costs.
1
A.
Hi Marc, thank you for your comment! Aerogels are notorious for their performance as thermal insulators. We look forward for your proposal submission for review.
JM
Julio Malpica, Technical Program Leader, Novelis
April 12, 2024
Is this response helpful?
0
0
Q.
Are you looking for a potential material for encapsulating the aluminum coil? Let me know if you are looking for a polymeric material providing excellent fire retardant, vibration resistance and shock resistance.
1
A.
Hi Mohammed, thank you for your question! We are looking for material in the nano or micron scale that can be applied to the aluminum coil, survive manufacturing processes (stamping, joining) and can be activated in the event of a thermal runaway. I think of it like... "it is there, but no one notices until needed". Feel free to submit a proposal for the review of the Novelis team.
JM
Julio Malpica, Technical Program Leader, Novelis
April 16, 2024
Is this response helpful?
0
0
Q.
What kind of sprayer is used to apply the flame retardant finish?
1
A.
Hello, thank you for your question! We are not specifying the spray or deposition method or technique. This is open for the responders to specify - the higher the TRL the better of course. Regards
JM
Julio Malpica, Technical Program Leader, Novelis
April 17, 2024
Is this response helpful?
0
0
A.
Julio please define TRL in your view. thank you.
1
A.
Hi, sure thing - TRL refers to the Technical Readiness Level and I was referring to the TRL of the application or deposition method of the fire barrier you would propose.
JM
Julio Malpica, Technical Program Leader, Novelis
April 17, 2024
Is this response helpful?
1
0
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