2511Battery measurement module
Fast, precise and perfect for automation! Optimised for multi-channel measurement in automated production testing of lithium-ion battery cells - for seamless 100% quality assurance. Testing is carried out with individually adjustable parameters for maximum flexibility.
Productinformation
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| Temperaturmessung |
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| Fieldbus interfaces |
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The model 2511 battery measurement module is particularly suitable for fast, multi-channel measurement of battery cells in automation. The device works according to the proven four-wire measurement method and combines the function of a battery tester and a battery analyser, enabling rapid testing of battery cells regardless of the technology. Important parameters are quickly measured and evaluated in just a few milliseconds. The test can be carried out with individually adjustable parameters.
The device is designed for tough industrial use in highly automated systems and also for laboratory operation. The model 2511 battery measurement module offers a compact design, high protection class IP54 and a design hardened against electromagnetic interference, which is essential in automated systems in order to determine measured values with maximum repeatability and traceability.
The variable fieldbus interfaces enable flexible process integration. This means that fully automated tests can be carried out.
- Random quick test on single workstations with regard to impedance and temperature behavior incl. cell voltage measurement
- Visualization of all measurement parameters, measurement results and evaluations
- Measurement data acquisition via fieldbus and/or USB
Task
Battery cells with a relatively high internal resistance can generate more heat; chemical processes can accelerate the capacitance reduction and the internal resistance increases. The resistance can change due to transport or handling movements. In order to ensure that there is consistent quality in the assembly of power tools and the integration of the batteries, test objects are taken at random at individual workplaces and subjected to a quick test with regard to impedance and temperature behaviour, including a cell voltage measurement.
Measuring and evaluation parameters
Ucell .................... ≈ 0 … 18.2 to 18.8 VDC
RAC (1 kHz) ....... ≈ 23.50 … 24.88 mΩ
RDC (10 Hz) ....... ≈ 24.71 mΩ
ϑ ........................ ≈ 20 … 29 °C
Branchen
- Acquisition of internal resistance, voltage of the individual cells and module voltage ≤60 VDC
- Measurement time Internal resistance at 1 kHz as well as cell and module voltage of all 16 cells in less than 0.5 s
- Up to 5 measuring channels per device. Easy to cascade on a top-hat rail due to the small design.
- Connection via PROFINET supports flexible sequence control and measurement data acquisition
Task
Many battery cells are required to manufacture and install high-performance battery modules for electrically operated vehicles. In received goods checking area, important battery parameters of each individual cell must be reliably measured and evaluated within very short cycle times. After contacting the prismatic cells, the internal resistance with 1 kHz and the cell and module voltage of all 16 cells are measured and evaluated within approx. 0.5 s with the cascadable battery measuring module and transferred to a PLC in real time.
Measuring and evaluation parameters
Ucell .................... ≈ 0 … 3.4 to 3.7 VDC
Umodule ................ ≈ 54.4 … 59.2 VDC
RAC (1 kHz) ....... ≈ 24.91 … 25.12 mΩ
Branchen
- Determination of series resistance (electrolyte) and parallel resistance (electrodes) by impedance measurement at previously set frequencies
- Additive measurement of cell voltage and temperature
- Up to 5 measuring channels per device
- Parameterization of the measurement parameters via PROFINET
Task
Many round cells are often used in battery operated large-scale storage systems. Before these are installed, different battery parameters of each individual cell must be exactly and quickly measured and evaluated in order to achieve qualitative matching. The contacting of the round cells takes place using the four-conductor measuring method (for each current and voltage cable). The two-frequency impedance measurement is used to determine the series resistance (electrolyte) and the parallel resistance (electrodes). In parallel to this, the respective cell voltage and temperature are recorded and evaluated. At the control side, the data is passed over via PROFINET. All measuring and evaluation data is archived for traceability.
Measuring and evaluation parameters
Ucell .................... ≈ 0 … 3.3 to 3.8 VDC
RAC (1 kHz) ....... ≈ 23.50 … 24.88 mΩ
RDC (10 Hz) ....... ≈ 24.71 mΩ
ϑ ........................ ≈ 22 … 28 °C
Branchen
- Testing of 32 Li-ion round cells from a complete battery module at EoL (without BMS electronics)
- Timely detection of possible causes of failure such as self-heating, capacity losses or accelerated aging processes
- Preventing serious impacts on battery life
TASK
Determining the open-circuit module voltage, using the four-wire measurement method the AC/DC internal resistance is measured at 1 kHz and 10 Hz, in order to draw conclusions about the electrolyte and electrode properties. The measured values and evaluation results are transferred to the PLC via PROFINET. Due to their minimal dimensions, IP54 protection and low weight, the modules are installed in the immediate vicinity of the robot.
Measuring and evaluation parameters
Ucell ……………. approx. 3.66 … 3.67 VDC
Umodule ………… approx. 58.62 … 58.82 VDC
RAC (1 kHz)……. approx. 23.50 … 24.88 mΩ
RDC (10 Hz)…… approx. 1.75 mΩ
Branchen
Extras
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