Optimization of battery systems

We design battery management systems and further develop existing systems. This enables an efficient and innovative design with suitable software.

Battery System Technology

In the topic of Battery System Technology, our fields of work include:

Development of battery systems

Battery Management Systems (BMS) and State Estimation

PV Home Storage and Commercial Storage

Forming, Aging and Modeling

For applications with continuous demand, electric storage systems are required for all autonomous power supply systems. This applies to mobile devices (mobile phones, laptops), stationary technical devices (lights, signals), autonomous power systems for homes (Solar Home Systems, alpine huts), remote village and town power supply based on renewables and increasingly also for grid-connected applications (PV home storage). Battery systems play a key role in renewable energy systems, especially for PV and wind, due to their modularity and high energy efficiency. In addition, battery systems are also important for zero-emission and efficient mobility.

At Fraunhofer ISE, we focus on optimizing the battery system along the entire value chain from the cell through to the complete system. Depending on the application and user profile, the requirements on the battery system can be high. Batteries are required to operate safely. They may be exposed to extreme variations in temperature and are expected to have a long operating and cycle life. Further, batteries shall be fast charging and cost-effective.

With our comprehensive and long-term experience, innovative ideas and our state-of-the-art laboratory facilities, we have the competence to support our clients in developing competitive products. We can assist them in selecting the suitable technology from the cell level up to the system level, including the development of the complete system and its integration into the application.

On this topic from our research blog »Innovation4E«

Die »Thermal Comfort for Electric Vehicles – Longer driving range for electric vehicles through optimized battery management

Blog post by Maximilian Bruch

Maximilian BruchWhat is the ideal operating temperature for electric cars? At what temperature do they perform best? The participants of the European research project JOSPEL are addressing just these questions by assessing the optimization potential of electric vehicles. The project aim is to increase the energy efficiency and range of electric vehicles by applying efficient and cost-effective climate control solutions especially developed for battery electric vehicles. Experts at Fraunhofer ISE are working with industry partners on optimizing battery operation, with the goal of increasing battery lifetime through improved thermal management.

Read more on blog.innovation4e.de

In our Center for Energy Storage Technologies and Systems we offer facilities for testing and characerization of battery systems:

  • Lab Batteries
    • Tests and Characterization 
      In our laboratory facilities covering an area of 400 m², we test battery and systems based on, e.g., Li-ion, lead-acid, NiMH battery cells as well as high temperature batteries and double layer capacitors. Our laboratory equipment includes battery test systems, impedance spectrometers, calorimeters, etc. We use these systems to perform tests in the climate chamber or in a water bath based on accredited standards or customized to our client’s needs.
    • Aging Investigations
      To investigate aging and perform lifetime analyses of batteries and battery systems, we offer long-time tests carried out over several months and more. These tests contain both an investigation of the cyclic lifetime as well as calendar aging. For this purpose, we have about 180 test circuits for the button cell up to large storage systems.

Selected Research Projects

 

Net-PV

Solar Battery System Service Provider for the Power Grid

 

ProTrak

Throughput-Optimized Formation: Production Technology for the Manufacturing of Lithium Cells

 

StaTrak

Second Life of Lithium-ion Traction Batteries in Mobile and Stationary Applications

 

JOSPEL

Efficient Passenger Comfort System Based on the Joule and Peltier Effect

Stephan Lux

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Stephan Lux

Battery System Technology

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5419

Waleri Milde

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Waleri Milde

Battery Management ­Systeme (BMS) and State Estimation

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5924

Bernhard Mademann

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Bernhard Mademann

PV Home Storage and Commercial Storage

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5791

Adrian Heuer

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Adrian Heuer

Forming, Aging and Modeling

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5220

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