E-mobility: Handtmann presents high-performance hybrid battery

E-mobility: Handtmann presents high-performance hybrid battery

New battery solutions and thermal management modules for electromobility are more in demand than ever. At the Battery Show Europe, the largest trade fair for battery technology, Handtmann Systemtechnik GmbH & Co. KG is showcasing its extensive portfolio for sustainable mobility. The trade fair presentation will focus on the new hybrid battery that Handtmann has developed for a leading car manufacturer, a modular high-voltage battery system and the ITS, a highly integrated thermal management system. The technology and systems engineering specialist for the automotive industry in development, charge air ducting/cooling as well as high-voltage and thermal management systems provides complete consulting, support and project responsibility for all product developments, including monitoring the process technology. With one goal: more efficiency and speed in the process.

As a full-service provider, Handtmann Systemtechnik has been one of the young divisions within the traditional Group since 2003. For almost ten years, Systemtechnik has been developing a wide variety of e-mobility concepts for leading car manufacturers. The newly developed hybrid battery from Handtmann impresses with an output of around 300 kilowatts at 800 volts. The energy is supplied by Li-ion high-power cells in the 21,700 format. “At the Battery Show, we are presenting the prototype of the new hybrid storage system for the first time, which we designed completely in-house, from the initial idea to the thermal and electrical performance analysis,” says system developer Christopher Zell. The first hybrid storage units will soon be used by one of Germany's leading car manufacturers. 

Modern battery test bench has been in operation at the headquarters since mid-May

In mid-May, Handtmann put an modern battery test stand into operation at its headquarters in Biberach an der Riss for tests accompanying the development of prototypes such as the new hybrid storage system and prototype stands. “On the 130 square metre test field and in the 16 cubic meter test chamber, we can optimally analyze all thermal and electrical outputs for systems up to a nominal output of 1.1 megawatts and adapt them to the needs of our customers,” explains Zell. Handtmann Systemtechnik is therefore always able to meet and further develop the performance and test requirements of the next generation of batteries. The test bench also meets the latest state of the art for cooling systems, as systems with immersion cooling can also be tested.

Battery modules adapt to installation space and performance requirements

From development to large-scale production, Handtmann Systemtechnik solves the individual storage challenges of its customers. In this way, the full-service provider guarantees reliable operation and a long service life with maximum flexibility.

ITS thermal management module is significantly lighter and more efficient

The ITS thermal management system for battery electric vehicles increases system efficiency with uncompromising performance and service life. With a heating capacity of seven to 14 kilowatts and a cooling capacity of seven to 18 kilowatts, the device ensures optimum functionality of the water-cooled battery packs, even in extremely warm or cold ambient conditions, thereby extending their service life. As the central interface between coolant and refrigerant, the ITS from Handtmann maps all operating scenarios both while driving and at a standstill. The heart of the system is a rotary valve. The device is supplemented by the electric coolant pumps and the optional coolant expansion tank. The evaporator with expansion valve, heat exchanger and storage tank form the interface to the refrigerant circuit. “Thanks to the variable installation and compact design, we can flexibly integrate the ITS into a wide variety of vehicles. We have also reduced the components and interfaces as well as the volume of refrigerant and coolant. This makes the ITS significantly lighter and more efficient,” says Marcel Steinbach, Head of Product Development at Handtmann.