Zero Electric Vehicles Announces Revolutionary ‘Passive’ Battery Thermal Management System

Zero Electric Vehicles announces revolutionary ‘passive’ battery thermal management system.

Zero Electric Vehicles, Inc. (ZEV), an innovative sustainable mobility company for electrification solutions, announced a revolutionary, low-cost, sustainable plant-based “passive” thermal management technology for BEV mobility applications.

Carolyn Maury, ZEV CEO.

We are thrilled to announce this breakthrough. Dr. Kannan and his team have worked tirelessly to pioneer this new method to stabilize battery thermal management during faster charge/discharge cycling.

“This innovation is a shining example of the focus and commitment ZEV has to offer towards the next chapter in EV adoption.”

Lithium-ion battery (LIB) systems with liquid electrolytes currently hold a large portion of the portable and automotive battery markets, with several advantages over other battery systems, such as higher operating voltage, higher energy and power densities, lower self-discharge rate, and longer cycle life.

Zero Electric Vehicles Announces Revolutionary ‘Passive’ Battery Thermal Management System

However, safety is still a major issue for LIBs in electric power equipment as liquid electrolytes contain combustible organic solvents, leading to a risk of catching on fire during faster charge and discharge operations, especially in larger modules. In particular, the temperature profile of the battery module and pack plays a crucial role in terms of performance and safety for automotive applications.

A properly designed thermal management system is important to prevent overheating and uneven heating across a large battery module, which can lead to degradation, mismatch in cell capacity and thermal runaway. Hence, battery thermal management is critical for improving thermal safety, prolonging the cycle life and overall lifespan of batteries with liquid electrolytes, at high rate of charge and discharge.

Historically, air is used as a cooling medium by passing between the LIB cells for controlling the module temperature. Liquid has also been used for cooling of battery cells and can be circulated to a remote liquid-to-air heat exchanger for discharging excess rejected heat.

However, this active cooling/thermal management of the LIB module consumes additional electrical energy. The revolutionary passive thermal management system with sustainable plant-based phase change material (PCM) eutectic mixture is demonstrated to ensure thermal uniformity with exceptional safety with higher charge/discharge rates.

Initial research with cylindrical LIBs with groundbreaking results through passive thermal management using plant-based PCM in a battery module has been protected through U.S. patent application # 63/207,509.

Dr. A.M. Kannan, ZEV Chief Scientist and Lead Inventor on the announcement.

ZEV’s immersive method to passive battery temperature control is a significant breakthrough in LIB thermal stability across operating temperatures and fast charge/discharge cycling, improving battery performance, cycle life and safety for ZEV customers.

READ the latest Batteries News shaping the battery market

Highlight:

• ZEV is on the path to be the worldwide leader in electrification for light and medium duty fleet vehicles

Zero Electric Vehicles, Inc. Announces Revolutionary ‘Passive’ Battery Thermal Management System, TEMPE, Ariz., July 14, 2021