Next-generation solid-state battery pack co-developed by Welion & BASF

 

Next-generation solid-state battery pack co-developed by Welion & BASF unveiled at Guangzhou International Automobile Exhibition

A next-generation solid-state battery pack co-developed by Welion New Energy Technology (Welion) and BASF was unveiled at the 23rd Guangzhou International Automobile Exhibition. The #batterypack incorporates innovative material solutions from #BASF, including engineering plastics (#Ultramid®, #Ultradur®) and #polyurethanes (#Elastolit®, #Elastoflex®, #Elastan®, and #Elastocoat®), which contribute to vehicle weight reduction, thermal management, and enhanced safety performance in #electricvehicles (EVs).

BASF’s advanced materials elevate battery safety and performance. The flame-retardant cell holder delivers exceptional electrical insulation and meets stringent standards. Fire-resistant compounds in extruded high-voltage busbars ensure superior metal adhesion and flow versus polyamide 12 (PA12). Elastolit foaming potting adhesive and Elastocoat fire-protection coatings further reinforce thermal runaway resistance. Together, BASF’s material solutions safeguard against thermal runaway, mechanical impact, overcharging, and short-circuit risks, engineered under China national GB 38031 standard, and aligning with global battery standards.

“In the highly competitive EV battery market, innovation is a key differentiator. Solid-state batteries are the future of power and energy storage - delivering superior efficiency and safety. By combining BASF’s advanced materials with Welion’s R&D expertise, we’ve co-developed a next-generation solid-state battery pack that strengthens competitiveness and drives sustainable growth for the new energy vehicle industry,” said Huigen Yu, Chairman, Welion. “By eliminating the hazards of flammable liquid electrolytes, the solid-state design delivers exceptional thermal stability. It also tackles key challenges in charging speed and driving range - accelerating the mainstream adoption of solid-state batteries and bringing consumers safer, smarter, and more reliable electric vehicles.”

Reducing vehicle weight is critical for maximizing EV efficiency. BASF's Ultramid PA side cooling manifold and Elastoflex PU Stray Transfer Molding (STM) battery cover cut weight by about 50% compared to metal alternatives. Elastan low-density structural adhesive optimizes structural integrity - meeting the dual demands of safety and lightweighting. Additional polyurethane structural filling and polyurea coatings further increase battery impact strength. 

source : BASF