GM's Battery Tech- Wireless EV Batteries

Electric vehicle batteries need to communicate with the onboard management system, and until now they relied on a physical electrical connection. GM (NYSE: GM) has provided the latest evolution in EV battery tech with its wireless connection from battery to management system.

Battery Pack for electric vehicle
GM's Battery Pack

EV Battery Evolution

With this evolution in wireless battery technology, the onboard battery management system (BMS), which is in charge (no pun intended) of making sure the battery bank(s) charge and discharge safely and at the rates the engineers programmed them to. They are what helps determine the overall performance of the vehicle as well as the durability/ longevity of the battery.

Similar to Bluetooth

This wireless bridge is how the battery connects to the onboard management system via antennas in a way similar to how Bluetooth works, IEEE Spectrum magazine writes after an exclusive look at the new batteries.

There is a huge advantage to this, as it allows a plug and play type system that allows for a interchangeable battery system that can be quickly deployed into a truck, sports car, van or similar without having to worry about designing a wire management system for the BMS.

Ultium Batteries

The Ultium batteries GM developed made headlines earlier this year. The company noted they were unique for the EV industry because of their flexibility: “the large-format, pouch-style cells can be stacked vertically or horizontally inside the battery pack. This allows engineers to optimize battery energy storage and layout for each vehicle design,” GM said in March.

“EVs represent the key growth segment for General Motors,” chief executive Mary Barra said earlier this week at an event. “We’re going to win in EVs and give our customers an amazing ownership experience.”

GM has its share of competition and companies like Rivian and Tesla appear to have a large lead on GM on longer range forward thinking EV's.

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