Tech Tuesday #3 – Positive Temperature Coefficient Device

In the third of our new Tech Tuesday Series we take a bitesized look at what goes into the technology behind our battery technology, starting with the third of our safety features at the battery cell level.

Cell Safety – Positive Temperature Coefficient Device

Our Hibernium® battery packs are built exclusively with 2170 cylindrical battery cells. Yet another of the many good reasons we use this battery cell format is the added Positive Temperature Coefficient Device contained in each individual battery cell.

The Positive Temperature Coefficient (PTC) device is built into the cell to act as a protection to inhibit high current surges a small round disc found towards the top of your battery inside the casing. PTCs are resistors with a positive temperature coefficient, which means resistance of the PTC is low during normal operation and increases when the temperature rises above a critical level to reduce current flow. The PTC is reversible and returns to high conductivity when the temperature normalizes. Typically it is settled between a pressure seal and the top of the battery and protects the cells under external short conditions.

As we shift towards an all-electric future, it is technology like this that is making electrification a reality, not just for the mass vehicle market, but for the highly diverse and demanding non-road mobile machinery market too.

Tech Tuesdays Series

At Xerotech, we take battery safety very seriously. As a trusted supplier of battery technology to a wide variety of heavy industry, we believe in an ethos where batteries and battery technology should never pose a risk to people, even under the most extreme of conditions. Because of this we conduct a rigorous set of in-house tests and incorporate many different features that build in high levels of battery safety as standard. These tests are designed to push the boundaries far beyond what could be expected, even in the most demanding of conditions. It is as a direct result of this that we have developed one of the safest batteries in the world today.

To learn more about our in-house testing, click HERE
To learn more about our battery technology platform, click HERE


About Xerotech

Xerotech is a battery technology company that is solving one of the greatest challenges of our generation, industrial electrification. Our talented team is making an impact on a global scale, driven by a shared vision of a fully electric future.

Our Hibernium® battery pack platform is a battery pack platform that adapts to the bespoke needs of your vehicle or application. With Hibernium® you can choose your desired or preferred energy content, operating voltage range, physical dimensions, and even battery cell chemistry. There are no design or engineering costs even for one-off prototyping projects making this solution one of the only viable options for low volume, high diversity projects.

The electrification of heavy-duty machinery is now available to every OEM and Integrator.

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