SemiQ supplies SiC MOSFET modules for EV battery cell cyclers
SemiQ Inc, a US developer of SIC devices, for has begun shipping its SiC MOSFET modules for integration into advanced cell cycling systems used by several of the world's largest battery manufacturers.
In lithium-ion batteries, cell cyclers enable the formation of a stable solid electrolyte interphase to enable increased longevity and performance. The systems also enable battery manufacturers to perform battery degradation analysis, temperature and stress testing, and check for defects or performance issues.
To undertake these tasks, the cyclers need to accurately charge and discharge batteries, with high switching frequencies enabling more precise control of current and voltage to avoid damage from overcharging/discharging. For this function, the MOSFETs need to withstand the thermal stress of repeated power cycling, with failure leading to test disruption and inaccurate data.
SemiQ is supplying its GCMX003A120S3B1-N and the GCMX003A120S7B1 QSiC 1200 V SiC half-bridge modules for use in 100 Kw cyclers (10 x 10 KW cells with parallel connections).
These high-speed switching MOSFET modules are highly efficient with low switching losses, are designed with a reliable body diode, have been tested to over 1350 V and implement a rugged design with easy mounting. Each 10 kW cell will integrate 12 modules, with 120 per 100 kW per cycler.
Timothy Han, president at SemiQ said: "Reports 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.”
