SemiQ sees SiC traction in EV battery cell cyclers
SemiQ in the US is shipping its silicon carbide (SiC) MOSFET modules for high power cell cycling systems used by several of the world’s leading battery manufacturers.
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.
These 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. This means the MOSFETs need to withstand the thermal stress of repeated power cycling, as failures lead to test disruption and inaccurate data. Conversion efficiency is also important to reduce the running costs of the factory.
SemiQ is supplying its GCMX003A120S3B1-N and the GCMX003A120S7B1 QSiC 1200 V SiC half-bridge modules for use in 100 kW cyclers with ten 10kW cells in parallel connections.
These SiC MOSFET modules include a reliable body diode and have been tested to over 1350 V and implement a rugged design with easy mounting. Each 10kW cell will integrate 12 modules, with 120 per 100 kW per cycler.
“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,” said Dr. Timothy Han, President at SemiQ.
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