Onsemi and NIO expand partnership to 900V EV
Onsemi is expanding itscollaboration with NIO to advance next-generation electric vehicle (EV) platforms. Building on a multi-year partnership, the companies are more closely engaging to accelerate NIO’s transition from 400V to 900V architectures, enabled by Onsemi’s latest EliteSiC enhanced M3e technology.
According to Onsemi, EliteSiC enhanced M3e technology delivers optimised switching performance through improved body diode characteristics, reducing energy losses (Eon) while maintaining strong short-circuit robustness. These advances translate into higher system output, improved thermal performance, and increased overall drivetrain efficiency.
The expanded collaboration builds on a longstanding partnership, which began with Onsemi’s EliteSiC technology supporting NIO’s 400V platforms. Today, Onsemi’s EliteSiC technology underpins NIO’s transition to 900V architectures, including its latest flagship SUV, the ES9, and additional models debuting at the 2026 Beijing Auto Show.
“Electrification is entering a new phase where system efficiency and scalability are paramount,” said Hassane El-Khoury, president and CEO of Onsemi. “Our expanded collaboration with NIO demonstrates how deep engineering alignment and aligned technology roadmaps can accelerate the transition to high-voltage architectures. With our EliteSiC technology, we are enabling higher performance, improved efficiency, and faster time-to-market for next-generation EV platforms.”
“NIO has consistently pushed the boundaries of intelligent electric mobility,” said Alan Zeng, CEO of XPT, NIO’s powertrain unit. “Our collaboration with Onsemi has evolved alongside our technology roadmap—from early 400V systems to today’s 900V platforms. The performance and reliability of Onsemi’s EliteSiC technology, combined with strong technical collaboration, are helping us deliver more efficient, high-performance vehicles to our customers worldwide.”
