EIS SCANNERS
description
Welcome to the Next Generation of Electrochemical Impedance Spectroscopy (EIS) and the first EIS scanner using R3 EIS technology.
Our EIS Scanner CLARITY is suitable for use on batteries with a capacity of approximately 1 – 10 Ah. For example 18650 or 21700 batteries.
The EIS Battery Scanner uses R3 EIS technology deveolped by Batixt AB. This technology allows Rapid, Reliable and Repeatable EIS scanning and cycling of batteries.
A 42 second EIS scan, with a frequency separation of 1% delivers EIS results for approximately 630 frequencies. A full SoC sweep of the battery with 100+ of these scans will take 2-4 hours.
key features
EIS SCANS
- Multi-sine scans with hundreds or thousands of frequencies
- Charge or discharge cycling of batteries
- User-friendly script editor where you can combine charge and discharge routines with multi-sine EIS scans at required intervals.
- Choice of fixed measurement times (20 – 160 seconds) or user specified measurement times
- User choice for current settings and frequency separation
OUTPUT/ANALYTICS
- Nyquist, Step Response and relaxation data output on request
- Choice of data output formats
- Nyquist single or multi scan plotting
- Nyquist carpet plotting (multiple multi-sine scans)
INTERFACES
- Battery holder for cylindrical cells
- Possible to connect to other types of batteries
- USB cable connection
NYQUIST DATA
More examples of our data results and datafiles with R3 EIS data
will be uploaded on our website shortly.
key features
EIS SCANS
- Multi-sine scans with hundreds or thousands of frequencies
- Charge or discharge cycling of batteries
- User-friendly script editor where you can combine charge and discharge routines with multi-sine EIS scans at required intervals.
- Choice of fixed measurement times (20 – 160 seconds) or user specified measurement times
- User choice for current settings and frequency separation
OUTPUT/ANALYTICS
- Nyquist, Step Response and relaxation data output on request
- Choice of data output formats
- Nyquist single or multi scan plotting
- Nyquist carpet plotting (multiple multi-sine scans)
INTERFACES
- Battery holder for cylindrical cells
- Possible to connect to other types of batteries
- USB cable connection
| SPECIFICATIONS FOR EIS SCANNER CLARITY | |
|---|---|
| CURRENT AND VOLTAGE | |
| Battery Capacity (Ah) | 1 to 10 Ah (dependent on the batteries imepdance). Accuracy is reduced outside this range |
| Battery Voltage (V) | 2.5 - 5 V |
| Applied Current (A) | 0-5 A (DC level up to 2.5A) |
| The current can and should be selected depending on the battery properties | |
| Drawn Current (A) | 0-5 A (DC level up to 2.5A) |
| The current can and should be selected depending on the battery properties | |
| Calibration | Yes |
| EIS MEASUREMENT | |
| Measurement Method | Galvanostatic, on charge or discharge |
| Frequency Range | 10 mHz - 10 kHz |
| Number of Frequencies | User defined prameters of measurement time and frequency separation determine the number of frequencies in a single multi-sine measurement A 42 second EIS scan, with a frequency separation of 1% delivers EIS results for approximately 630 frequencies |
| Frequency Resolution | Few ppm of the setting |
| Quality Indicators | Scatter is calculated and displayed. Due to high data resolution, scatter can be observed in the Nyquist diagram. Parasictic frequencies will stand out clearly |
| Measurement Accuracy | Since both the current and the voltage used to calculate the EIS data are measured by the same device, we become independent of absolute accuracy while relative accuracy between current and voltage is maintained at a high level The time constant spectrum data can be used to further enhance accuracy in the modelling phase |
| Modelling Accuracy | In modelling that is based on EIS data from this instrument, each modelled parameter may be based on a large number of EIS data points, typically 50 or more points. Therefore, the resulting parameters become very accurate |
| Output | Nyquist data (separated from step response) |
| Step response data | |
| Relaxation information | |
| DATA ACQUISITION | |
| Method | Single EIS scan or multiple scans via user defined script |
| Rate (Sampling) | 200 kHz, 18 bits, The sampling rate will decrease for data acquisition times exceeding 200 seconds |
| Time | Fixed times of 21, 42, 84 or 168 seconds can be selected. These times ensure fastest data processing. Other measurement times may be selected, but will result in slower dataprocessing |
| Measurement Resolution | 0,0005 % of full range including oversampling |
| Noise and Ripple | Levels are low The signal-noise ratio varies depending on the measurement time, the number of frequencies and the current applied The scatter value that is displayed together with the appearace of the Nyquist diagram reveals the noise levels There is no ripple in the discharge analysis since the power is from the battery. In the charge analysis there is XX mV noise/ripple from the 7 VDC power supply |
| HARDWARE/SOFTWARE | |
| Filters | Hardware/Software |
| Interfaces | Ethernet (Direct, LAN) |
| USB 2.0 and 3.2 with integrated computer | |
| Battery Cycling | The software makes it possible to design and perform cycling procedures. See the operators manual for more details on the capabilities |
| Power | Requirement: Max. 100 W at 230 V AC Power Supply: 1. Internal ± 15 V 2. 7 VDC to drive current into the battery and to charge the battery |
| Dimensions | 380 (L) x 270 (W) x110 (H) mm |
| Weight | 7-8 kg |
| Cell (Electroces) Connections | 4-wire battery connection |
| Input/Output | Hardware trigger signal input and corresponding ready signal output |
| Grounding | Normal safety grounding of the instrument according to CE-certification standards |