TECHNOLOGY | COMPOUNDS FOR EVs
Right: Noryl NHP6011 and NHP6012 resins from SABIC address key perfor- mance requirements for electric vehicle battery enclosures
“With its highest flame retardancy,
excellent insulating proper- ties, and very favourable processing from extrusion to the finished moulded busbar component, Evonik’s new high-performance plastic developed especially for e-mobility offers the possibility of making energy
management in electric vehicles even more efficient and, above all, significantly safer,” says Eckart Ruban, responsible for e-mobility in Evonik’s High Performance Polymers Business Unit. The newly developed compound joins Evonik’s
existing range of other RAL signal orange PA12 products with V-2 and HB classifications. The company says that the compound is also suitable for processing by injection moulding and, due to its halogen-free flame retardant system, can also be used to manufacture other components for automotive electrical applications.
Battery modules Two new Noryl resin grades from SABIC are said to have been developed to support demand for lighter, thinner and more crash-resistant battery modules and housings in EVs. The company says that Noryl NHP6011 and NHP6012 deliver en- hanced flame retardancy and impact strength to meet stringent industry-related safety standards, as well as thin-wall moulding capability to reduce weight and accommodate more cells, helping to extend vehicle range and boost performance. The glass fibre-reinforced grades are based on the
company’s polyphenylene ether (PPE) copolymer technology and are the latest additions to its growing NHP family for mobility applications. “Optimisation of batteries is crucial to expanding
adoption of electric vehicles and realising the full sustainability benefits of e-mobility,” says Darpan Parikh, Global
Product Management Leader, Resins & Com- pounds in SABIC’s Specialties business. “By helping to enhance electric vehicle batteries through better safety, higher energy density and lower weight, our new Noryl resins can also help manufacturers increase the consumer appeal of their vehicles.”
SABIC says strict flame retardance demands are now in force, driven primarily by concern about the safety of lithium-ion batteries. In Europe and Asia, battery module materials must now meet the UL94 V-0 standard. The Noryl NHP6011 and NHP6012 resins utilise a non-chlorinated/non-brominated flame retardant system that meets UL94 V-0 requirements at 1.5 mm. The two products differ in their glass fibre loadings, allowing them to accom- modate specific customer requirements for stiffness and impact performance. Another key trend in EV battery manufacturing is
miniaturisation, according to SABIC. Battery manufacturers are working hard to fit more cells in existing or smaller spaces to increase vehicle power and range. The dimensional stability and good flow properties of the two Noryl grades
IMAGE: SABIC
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