Paragraf sensor survivability in EV packs
Paragraf
This points to a wedge where Paragraf can win on system survivability, not just sensor accuracy. Inside an EV battery pack, the useful question is whether a sensor still reads cleanly when the pack is hot, crowded with switching electronics, and full of stray magnetic noise. Paragraf’s graphene Hall sensors are built for that job, which makes them relevant for cell and busbar current mapping, thermal runaway detection workflows, and battery management designs that break down with conventional silicon parts in harsher pack conditions.
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Paragraf’s Hall sensors are specified for operation from millikelvin to 350K, and the company positions them for EV battery systems where engineers connect the chip to standard data acquisition gear and read magnetic field changes as current flow. That matters because battery packs need current visibility without putting a resistive shunt directly in the power path.
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The practical advantage in packs is EMI tolerance. Paragraf states its graphene Hall sensor can sit beside battery tabs and busbars and is less affected by stray in plane electromagnetic fields, which lets engineers measure current density and flow in noisy pack environments where alternative sensing approaches pick up more error.
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Incumbents like Infineon, Allegro, and AKM win most mainstream Hall sensor sockets on cost and supply chain. Paragraf is aiming at the harder corner of the market, where heat, field strength, and isolation constraints matter more than pennies per sensor, and where replacing shunts plus shielding can simplify the battery management stack.
The next step is from test and specialty deployments into production battery packs that need earlier fault detection and cleaner current data under stricter thermal propagation rules. As EV safety standards keep focusing on warning and containment around thermal runaway, sensors that can stay accurate inside the pack itself should move from nice to have instrumentation into core battery architecture.