Electric vehicle fires often become big news stories, but what actually causes them? A chain reaction inside the battery—called thermal runaway —causes the battery to generate excess heat and catch fire. Regulations have been put in place so that once a thermal runaway issue has been detected in the battery pack, occupants of the car… Read more »
Search Results Found For: "thermal runaway"
Webinar: Mitigating thermal runaway risk in EVs with ENTERA® aerogel
Aerogel is emerging as a superior, performance-enabling material in thermal barriers designed to mitigate thermal runaway risk and reduce the risk of fires occurring in lithium-ion batteries in electric vehicles. Discover how Cabot’s ENTERA® aerogel offers efficient insulation performance for cell-to-cell thermal management requirements, and how its distinctive properties enable the creation of thin product forms… Read more »
LG Chem, LX Hausys develop flame retardant to delay thermal runaway in EV batteries
Chemicals company LG Chem and technology manufacturer LX Hausys in South Korea have developed a material that can withstand a 1,500° C flame for over 20 minutes, delaying battery thermal runaway. The Special Flame-Retardant Continuous Fiber Thermoplastic (CFT) can withstand strong flames and high pressure 14 times longer than other thermoplastics, according to the company…. Read more »
Thermal runaway in EV battery packs: designing a mitigation strategy
Aspen Aerogels’ cutting-edge materials protect against thermal runaway Thermal runaway occurs inside a battery cell through a fault, a crash scenario or some other defect that causes the cell to release thermal energy through chemical reactions. That thermal energy increases the temperature of the cell, the increased temperature drives faster kinetics, and more heat is… Read more »
Wevo’s new silicone-based materials inhibit thermal runaway
Wevo-Chemie has developed a range of silicone-based materials for battery modules and packs to prevent thermal runaway propagation. The thermally conductive gap fillers of the WEVOSIL 260XX FL series are certified UL 94 V-0. The company says its formulation has high heat and flame resistance, lower weight compared to mineral or metal-loaded compounds, and no outgassing… Read more »
KULR obtains commercial license to use NASA thermal runaway technology
KULR Technology Group, an energy management platform company, says it has attained operational readiness for its fractional thermal runaway calorimeter (FTRC), and has a commercial licensing agreement with NASA to use the agency’s patent-pending FTRC solution. KULR’s new commercial license follows a one-year trial license from NASA, and allows FTRC to be used by companies,… Read more »
Thermal runaway early detection: critical sensors and connections for safe battery management
Sponsored by TTI and Amphenol. Battery management systems (BMS)—the electronic brains that monitors and maintains lithium ion battery packs—are essential for the safe and efficient operation of the batteries powering a variety of applications, including electric vehicles. The growth of electric vehicle technology is driven by the desire for reduced emissions, quieter and less expensive… Read more »
Novel current collector is designed to stop battery thermal runaway
Researchers from Renmin and Tsinghua Universities in China have developed a novel shape-memory current collector (SMCC) that they say can stop battery thermal runaway in an overheated battery. Their paper, Early Braking of Overwarmed Lithium-Ion Batteries by Shape-Memorized Current Collectors, is published in the ACS journal Nano Letters. Unlike traditional current collectors made of copper… Read more »
It’s about time: the 6 phases of thermal runaway propagation
Sponsored by Aspen AerogelsThermal runaway propagation is a complex challenge. No matter the cell chemistry or pack architecture, lithium-ion batteries are at risk of experiencing a thermal runaway event. Although there is no one-size-fits-all solution, battery engineers do not need to reinvent the wheel when developing a solution to meet critical safety requirements. By understanding… Read more »