- Precision in Electrochemistry
- English
Battery stack
Moving from single cells to battery stacks introduces effects that only appear in series connection, such as cell-to-cell variation. Electrochemical impedance spectroscopy (EIS) at the kilowatt scale separates the ohmic, charge-transfer, and mass-transport contributions across the full stack while it operates under realistic load.
The EIS-capable EL1002, powered by a power supply, provides a flexible solution for battery characterization. Such a system supports operation up to 1 kW, with currents up to 200 A or voltages up to 100 V.
With an adequate power supply, the unique EXT+ connection of the EL1002 enables EIS measurements up to 1 kW and DC operation up to 68 kW at voltages up to 100 V.
Synchronous per-cell measurement shows which individual cells limit performance and how aging develops unevenly across the stack. This supports state of health (SoH) assessment and the study of capacity fade in series-connected cells, which a single voltage measurement cannot provide.
Optional PAD42 card extensions enable synchronous measurements on individual cells within a battery stack and half-cell characterization in a reference electrode system.
The system can be controlled either through Zahner Lab software or integrated into automated setups via C++, Python, or WebSockets.
The EL1002 is used as an extension of an IM7 or IM7x potentiostat.
The EIS-capable EL1002, powered by a power supply, provides a flexible solution for battery characterization. Such a system supports operation up to 1 kW, with currents up to 200 A or voltages up to 100 V.
With an adequate power supply, the unique EXT+ connection of the EL1002 enables EIS measurements up to 1 kW and DC operation up to 68 kW at voltages up to 100 V.
Synchronous per-cell measurement shows which individual cells limit performance and how aging develops unevenly across the stack. This supports state of health (SoH) assessment and the study of capacity fade in series-connected cells, which a single voltage measurement cannot provide.
Optional PAD42 card extensions enable synchronous measurements on individual cells within a battery stack and half-cell characterization in a reference electrode system.
The system can be controlled either through Zahner Lab software or integrated into automated setups via C++, Python, or WebSockets.
The EL1002 is used as an extension of an IM7 or IM7x potentiostat.
Technical specifications
Voltage range:
4V / 100 V
Current range:
200 A
Current range (EXT mode):
± 680 A
EIS frequency range:
10 µHz - 100 kHz
In-depth battery analysis
The PAD42 cards in the IM7 or IM7x can be used together with EL1002 to perform synchronous measurements for in-depth analysis of the battery.
Stack-level analysis
The PAD42 cards allow synchronous EIS or DC measurements on each cell in a battery stack. With eight PAD42 cards, up to 33 synchronous measurements can be carried out on individual cells in a battery.
Learn more
Half-cell analysis
The PAD42 can be used to perform synchronous measurements at each electrode in a reference electrode setup.
Learn more
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