ROHM has announced the adoption of power modules equipped with 4^th generation SiC MOSFET bare chips for the traction inverters in three models of ZEEKR EV brand from Zhejiang Geely Holding Group (Geely), a top 10 global automaker.

Since 2023, these power modules have been mass produced and shipped from HAIMOSIC (SHANGHAI) - a joint venture between ROHM and Zhenghai Group to Viridi E-Mobility Technology (Ningbo) a Tier 1 manufacturer under Geely.

Geely and ROHM say they have been collaborating since 2018, beginning with technical exchanges, then later forming a strategic partnership focused on SiC power devices in 2021. This led to the integration of ROHM’s SiC MOSFETs into the traction inverters of three models: the ZEEKR X, 009, and 001. In each of these EVs, ROHM’s power solutions centered on SiC MOSFETs play a key role in extending the cruising range and enhancing overall performance.

ROHM says it is committed to advancing SiC technology, with plans to launch 5^th generation SiC MOSFETs in 2025 while accelerating market introduction of 6^th and 7^th generation devices. On top, by offering SiC in various forms, including bare chips, discrete components, and modules, ROHM is able to promote the widespread adoption of SiC technology, contributing to the creation of a sustainable society.

ZEEKR Models Equipped with ROHM’s EcoSiC
The ZEEKR X, which features a maximum output exceeding 300kW and cruising range of more than 400km despite being a compact SUV, is said to be attracting attention even outside of China due to its exceptional cost performance. The 009 minivan features an intelligent cockpit and large 140kWh battery, achieving an outstanding maximum cruising range of 822km. And for those looking for superior performance, the flagship model, 001, offers a maximum output of over 400kW from dual motors with a range of over 580km along with a four-wheel independent control system.

Market Background and ROHM’s EcoSiC
In recent years, there has been a push to develop more compact, efficient, lightweight electric systems to expand the adoption of next-generation electric vehicles (xEVs) and achieve environmental goals such as carbon neutrality. For electric vehicles in particular, improving the efficiency of the traction inverter, a key element of the drive system, is crucial for extending the cruising range and reducing the size of the onboard battery, heightening expectations for SiC power devices.

As reportedly the world’s first supplier to begin mass production of SiC MOSFETs in 2010, ROHM says it continues to lead the industry in SiC device technology development. These devices are now marketed under the EcoSiC brand, encompassing a comprehensive lineup that includes bare chips, discrete components, and modules. For more information, please visit the SiC page on ROHM’s website: https://www.rohm.com/products/sic-power-devices

EcoSiC Brand
EcoSiC is a brand of devices that utilise silicon carbide (SiC), which is attracting attention in the power device field for performance that surpasses silicon (Si). ROHM says it independently develops technologies essential for the evolution of SiC, from wafer fabrication and production processes to packaging, and quality control methods. At the same time, ROHM has established an integrated production system throughout the manufacturing process. EcoSiC is a trademark or registered trademark of ROHM.

 

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