Advanced graphene-based hall effect sensor for mapping of battery cells

Paragraf has released a new graphene Hall Effect sensor ideal for battery applications, such as the EV sector.

The graphene GHS01AT Hall Effect sensor is optimised for application in comparatively low field environments and normal ambient temperatures. Bringing the magnetic field measurement resolution towards more complex magnetic sensors, yet with the small size and simplicity of using a Hall sensor, it can satisfy monitoring tasks that conventional technologies just cannot offer an effective solution for.

The new sensors are ideal for the battery market. Here they will be of excellent value in battery cell analysis when examining the validity of different battery cell chemistry derivatives and form factors under development. By utilising these magnetic sensors, it will be possible to achieve a more detailed and localised (point-to-point) understanding of battery cell behaviour.

"Motivated by demands to safely extend EV range and accelerate charging times, battery manufacturers are under intense pressure to develop higher performance products. These need to be smaller and lighter, with heightened power densities and quicker charge responsiveness. To do this, they must have access to superior test data that they can analyse," states Dr Simon Thomas, CEO of Paragraf. "Thanks to our GHS01AT, they now have the technology necessary for such an analysis."

"This new device easily outperforms what is currently available in terms of both magnetic field and spatial resolution. It means that, for the first time, battery manufacturers can compile comprehensive datasets relating to the internal structure of their products from a current density perspective," Dr Thomas continues. "By implementing test rigs incorporating GHS01AT sensors, they will be able to ensure the long-term operation and safety of the battery packs they produce."