Infineon Technologies uses advanced technology to enable innovative solutions, giving electric passenger car batteries a new lease of life

[June 30, 2023, Munich, Germany] STABL Energy GmbH (STABL Energy) uses MOSFET products from Infineon Technologies AG to recycle retired electric passenger car batteries to create stationary energy storage systems. Currently, the first pilot projects for stationary energy storage systems have been put into use in Germany and Switzerland. The special advantage of the STABL solution is that used batteries with different residual capacities can be connected to the public grid without the help of a central inverter, even when there are a large number of used batteries.

Adam White, President of the Power & Sensing Systems (PSS) division at Infineon Technologies, said: “The innovative energy storage solutions provided by STABL are a perfect example of how microelectronics can drive the energy transition and climate protection, and how we can make the fast-growing electric vehicle sector more sustainable in the long term. Miniaturization makes it possible to increase energy efficiency through smarter systems. Increasing miniaturization is a must for decarbonization and improving quality of life.”

“We are combining power electronics with batteries using MOSFETs from Infineon,” said Dr. Arthur Singer, founder and co-CEO of STABL Energy GmbH. “In this way, we are developing more flexible and safe solutions for connecting energy storage systems to the public grid and thus achieving a technological leap in the second life of batteries for electric passenger vehicles. This can reduce losses by up to 70 percent and operating costs and CO2 emissions by 40 percent per year compared to conventional systems.”

Now, STABL's first batch of energy storage devices have passed the German CE certification and grid-connected standards and have been connected to the grid in Germany. The first device in Switzerland has also been connected to the grid. During the implementation process, 27 Kia car waste batteries with a rated capacity of 98 kWh were transformed into a temporary solar energy storage system to power residential areas.

The basic electronic components used by STABL are Infineon's 100V OptiMOS™ 5 MOSFET products. The company chose Infineon mainly because of its advantages such as low on-resistance, excellent thermal performance and reliability. With the many advantages of Infineon's MOSFET products, this young company has given electric vehicle batteries a "second life" after they were originally used to enable electric mobility, causing their power to decline and be discarded. The used batteries can therefore continue to be used for a long time and play an important "role" as intermediate energy storage systems in the green electricity supply chain.