Silicon Carbide (SiC) MOSFET modules are power semiconductor devices that control electrical current flow with superior efficiency compared to traditional silicon-based alternatives. They feature a metal-oxide-semiconductor structure with silicon carbide substrate, enabling higher temperature operation, faster switching speeds, and lower energy losses in high-voltage applications. As such, they are an integral part to making EV drivetrains more efficient.
SemiQ Inc, a global supplier of silicon carbide solutions, announced it has begun shipping its SiC MOSFET modules to several leading battery manufacturers for integration into advanced cell cycling systems. The modules will be incorporated into battery cell cyclers, equipment essential for lithium-ion battery production and testing. These cyclers perform the critical function of formation — creating a stable solid electrolyte interphase. As a result, they could significantly improve battery longevity and performance.
However, SemiQ’s new tech also brings other improvements to the table. For instance, these systems enable manufacturers to conduct comprehensive battery testing. In particular, manufacturers can use them for degradation analysis, temperature and stress testing, and quality control for defects or performance issues.
SemiQ is providing its GCMX003A120S3B1-N and GCMX003A120S7B1 QSiC™ 1200 V SiC half-bridge modules specifically for use in 100 kW cyclers. Each cycler consists of ten 10 kW cells with parallel connections, with each cell requiring 12 modules — totaling 120 modules per cycler.
These specialized modules deliver the high switching frequencies necessary for precise current and voltage control during charging and discharging cycles, preventing potential damage from improper charging. SemiQ says that the new design emphasizes thermal stress resistance to withstand repeated power cycling, as component failures can disrupt testing and produce inaccurate data.
As expected from a new, state-of-the-art technology, SemiQ’s modules feature exceptional efficiency with minimal switching losses, incorporate reliable body diodes, and have undergone rigorous testing to voltages exceeding 1350 V. Their rugged design also allows for straightforward installation.
Dr. Timothy Han, President at SemiQ said: “Reports1 show that the electrification of transportation is among the most important steps that can be taken to reach net-zero. For this, the evaluation of battery performance, durability, and efficiency plays a vital role in enabling the development of longer-range, longer-life EV batteries. We’re delighted to be working with one of the world’s leading cell cyclers and this partnership is testament to the ruggedness and efficiency of our SiC technology.”
This partnership with leading cell cycler manufacturers demonstrates the robustness and efficiency advantages of SemiQ’s SiC technology for integration in future EV models.
