BatterieIngenieure GmbH, founded in 2015, operates a laboratory in Aachen, Germany, and an office in Bilbao, Spain. UL Solutions acquired the company in May 2024, expanding our global battery testing footprint with a European facility.
BatterieIngenieure by UL Solutions leverages extensive experience in battery evaluation to offer testing, simulation and failure analysis, with a strong focus on battery life expectancy. Our team of experts, including leading battery researchers, plays a critical role in advancing battery performance and safety.
A wide range of tests for energy storage systems
2,500+ electrical test circuits for cells and batteries
- Voltage range: 0-6 V, 0-18 V, 0-60 V and 5-100 V for single cells, modules and batteries
- Current range: ±3 A, ±5 A, ±10 A, ±50 A, ±100 A, ±150 A, ±200 A, ±300 A, ±500 A or higher due to parallel connection
- Cold start test bench up to 2,000 A
- Each with a temperature chamber, oven or water bath
- Impedance measurement (electrochemical impedance spectroscopy (EIS) meter)
- Ripple current generator
- Hardware for the introduction of alternating current
- Signal frequency: 1 Hz-10 kHz
- Sinewave signal with an amplitude of 5 A in each channel
Test systems for battery packs
- 42.5 kW (up to 100 V and 500 A)
- 80 kW/peak to 135 kW (up to 500 V and 300 A)
- 240 kW (up to 1,000 V and 400 A); can also be used as a battery emulator
- Rocker for mixing electrolytes in lead-acid batteries
Vibration system testing
- Capabilities include thermal and electrical performance testing.
- Testing is conducted in isolated containers for safety and confidentiality.
Testing is conducted in isolated containers for safety and confidentiality
Types of testing
- Nail penetration test
- Drop test
- High temperature
- Overcharge
- External short circuit
- Deep discharge
- Temperature shock
- Temperature cycling
- Altitude simulation
- Vibration testing
- Shock testing
- Electrical tests (e.g., plating)
- Thermal propagation
Development and engineering support
Algorithm development for diagnosis
BatterieIngenieure by UL Solutions develops state detection algorithms, drawing on more than a decade of battery expertise. A deep understanding of battery behavior enables us to build more robust and reliable algorithms that can maintain accuracy throughout a battery’s lifetime. By integrating in-house parameterization, modeling and diagnostic activities, we offer efficient and comprehensive testing services.
BatterieIngenieure by UL Solutions develops advanced modeling and diagnostics for different technologies, with a primary focus on lithium-ion and lead-acid batteries, for both conventional and specific applications. Examples include:
- State-of-charge (SoC) modeling
- State-of-health (SoH) modeling
- Power prediction
- Charge procedure strategy
- State estimation for hybrid storage systems
Simulations
BatterieIngenieure by UL Solutions develops performance and lifetime models for various battery technologies, mainly focused on lithium-ion and lead-acid batteries, to support and accelerate optimal application design. Parameterization and validation measurements are carried out in parallel to deliver reliable and accurate models.
Currently, our activities focus on the following types of models:
| Model Type | Description | Purpose | |
|---|---|---|---|
| Equivalent circuit models | Reproduce electrical and thermal behavior |
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| Performance models | Electrochemical models | Reproduce electrical, thermal and cells' internal parameters behavior |
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| Aging models | Semi-empirical/advanced methods | Reproduce and predict degradation behavior in terms of capacity loss and resistance increase |
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Hardware development
Some battery and battery pack tests require highly specialized measurement electronics tailored to the specific test parameters. In many cases, commercially available options may not meet the necessary requirements or offer sufficient functionality. BatterieIngenieure by UL Solutions develops custom measurement electronics designed for precise testing needs.
Simulating complex, application-specific load cases is essential for algorithm characterization and parameterization. Previously developed pulse generators have already demonstrated their effectiveness in these scenarios.
Advisory and engineering support
We provide expert guidance or engineering support on wide-ranging topics pertaining to batteries and their applications, with a focus on:
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Safety
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Optimal operation
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Technology selection
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Benchmarking and product selection
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Economic efficiency of storage systems
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Battery development
Our engineering services are backed by our extensive experience in testing, algorithm development, simulation, concept evaluation and expert analysis.
Additionally, we offer seminars on various battery-related topics, available in person — either at our facility or yours — or as online events.
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