Galvanostatic charge discharge potentiostat CS350M consists of DDS arbitrary function generator, high power high
precision potentiostat and galvanostat, EIS/FRA module,
dual-channel correlation analyzer, dual-channel high-speed
16bit/high-precision 24bit AD converter and extension interfaces.
Max. current is ±2A, potential range is ±10V. EIS frequency range
is 10uHz~1MHz. Equipping with galvanostatic charge discharge(GCD), Cyclic Voltammetry(CV), EIS, Potentiostatic Intermittent Titration Technique (PITT), and
Galvanostatic Intermittent Titration Technique (GITT) makes it an ideal electrochemical potentiostat in energy and
battery field. In addition, galvanostatic charge discharge potentiostat CS350M can also be used for various other electrochemical fields such as
corrosion, electrocatalysis, biosensor, electrodeposition, and
electroatanalysis etc. The current can be boosted up to 20A/40A
with a current booster CS2020B/ CS2040B.
Galvanostatic charge discharge principle
The technique galvanostatic charge discharge (GCD) tests (also
called “Constant Current Charging/Discharging”) is often employed
to evaluate energy storage systems and materials, like those
involved in electrochemical capacitors. Galvanostatic charge
discharge (GCD) involves the application of constant positive and
negative currents to charge and discharge a material within a set
potential limit(most common) or tie limit. This process is often
repeated for multiple cycles. Galvanostatic charge discharge (GCD)
profiles are used to evaluate the quality of capacitive response,
identify the possible presence of irreversible Faradaic reactions
and to derive several key EC figures of merit, such as capacitance,
capacity, energy and power.
The clear interface of Corrtest CS studio for Galvanostatic charge
discharge (GCD)
Advantages of galvanostatic charge discharge potentiostat CS350M
Real-time data storage
Experiment data can be stored in real time. Even if the test is
interrupted by a power failure, the data will be automatically
saved.
Electrochemical impedance spectroscopy(EIS)
● With constant current carrier and DC bias technology,
Galvanostatic charge discharge potentiostat CS350M can be used for
battery impedance measurement under charge and discharge state,
suitable for ultra-low resistance system (such as 18650 battery,
soft pack battery, battery core...)
● Galvanostatic charge discharge potentiostat CS350M uses
correlation integral algorithm and dual-channel over-sampling
technique, and has strong anti-interference ability. The internal
resistance of the instrument is up to 1013Ω. It's suitable for EIS measurements of high-impedance system.
Multi electrode system
● Galvanostatic charge discharge potentiostat CS350M support 2-,
3-, 4-electrode system, can be used to test battery internal
resistance or 4-electrode thin film impedance measurement
Software development kit(SDK)
We can provide secondary development interfaces,API general
interfaces and development examples, and can realize data call for
Labview, C, C++, C#, VC and other program.
High current, high compliance options
●With the CS2020B/CS2040B booster, the current of the galvanostatic
charge discharge potentiostat CS350M can be boosted to 20A/40A,
which meets the requirement in fuel cell, power battery,
electroplating, etc
Versatile data analysis
CS Studio is the software for Galvanostatic charge discharge
potentiostat CS350M for experiment control and data analysis. It
can do: multi-parameter Tafel curve fitting, derivation,
integration and peak height analysis of voltammetric curve, EIS
equivalent circuit customization and impedance spectrum fitting,
etc.
● GCD specific capacitance, efficiency
● EIS equivalent circuit fitting
● CV analysis
● Pseudo capacitance calculation
● Mott-Schottky plot analysis
● Multi-parameters Polarization curve
● Electrochemical noise analysis
Combination test
CS studio software supports the combination test for various
experiments to achieve flexible and
unattended test. You can set the parameters for each experiment in
advance, and various experiment will be carried out automatically
without you keep staying in the lab.
Combination Test: Pseudo capacitor tests
Software Features of galvanostatic charge discharge potentiostat
CS350M
Cyclic voltammetry: CS studio software provides users a versatile smoothing/differential/ integration kit, which can complete the calculation of peak height, peak area
and peak potential of CV curves. In CV technique, during the data
analysis, there is function of selecting exact cycle(s) to show.
Battery Test and analysis:
charge & discharge efficiency, capacity, specific capacitance,
charge & discharge energy.
EIS analysis: Bode, Nyquist, Mott-Schottky plot
During EIS data analysis, there is built-in fitting function to
draw the custom equivalent circuit.
| Specifications of galvanostatic charge discharge potentiostat CS350M |
| Support 2-, 3- or 4-electrode system | Potential and current range: Automatic |
| Potential control range: ±10V | Current control range: ±2A |
| Potential control accuracy: 0.1%×full range±1mV | Current control accuracy: 0.1%×full range |
| Potential resolution: 10μV (>100Hz),3μV (<10Hz) | Current sensitivity:1pA |
| Rise time: <1μs (<10mA), <10μs (<2A) | Reference electrode input impedance:1012Ω||20pF |
| Current range: 2nA~2A, 10 ranges | Compliance voltage: ±21V |
| Maximum current output: 2A | CV and LSV scan rate: 0.001mV~10,000V/s |
| CA and CC pulse width: 0.0001~65,000s | Current increment during scan: 1mA@1A/ms |
| Potential increment during scan: 0.076mV@1V/ms | SWV frequency: 0.001~100 kHz |
| DPV and NPV pulse width: 0.0001~1000s | AD data acquisition:16bit@1 MHz,20bit@1 kHz |
| DA Resolution:16bit, setup time:1μs | Minimum potential increment in CV: 0.075mV |
| IMP frequency: 10μHz~1MHz | Low-pass filters: covering 8-decade |
| Operating System: Windows 10/11 | Interface: USB 2.0 |
| Weight / Measurements: 6.5kg, 36.5 x 30.5 x16 cm |
| EIS (Electrochemical Impedance Spectroscopy) |
| Signal generator |
| Frequency range:10μHz~1MHz | AC amplitude:1mV~2500mV |
| DC Bias: -10~+10V | Output impedance: 50Ω |
| Waveform: sine wave, triangular wave and square wave | Wave distortion: <1% |
| Scanning mode: logarithmic/linear, increase/decrease |
| Signal analyzer |
| Integral time: minimum:10ms or the longest time of a cycle | Maximum:106 cycles or 105s |
| Measurement delay: 0~105s |
| DC offset compensation |
| Potential automatic compensation range: -10V~+10V | Current compensation range: -1A~+1A |
| Bandwidth: 8-decade frequency range, automatic and manual setting |
Techniques of galvanostatic charge discharge potentiostat CS350M
Battery test
- Battery Charge and Discharge
- Galvanostatic charge discharge (GCD)
- Potentiostatic Charging and Discharging(PCD)
- Potentiostatic Intermittent Titration Technique (PITT)
- Galvanostatic Intermittent Titration Technique (GITT)
Electrochemical Impedance Spectroscopy (EIS)
- Potentiostatic EIS (Nyquist, Bode)
- Galvanostatic EIS
- Potentiostatic EIS (Optional freq.)
- Galvanostatic EIS(Optional freq.)
- Mott-Schottky
- Potentiostatic EIS vs. Time (Single freq.)
- Galvanostatic EIS vs. Time (Single freq.)
Stable polarization
- Open Circuit Potential (OCP)
- Potentiostatic (I-T curve)
- Galvanostatic
- Potentiodynamic (Tafel plot)
- Galvanodynamic (DGP)
Transient Polarization
- Multi Potential Steps
- Multi Current Steps
- Potential Stair-Step (VSTEP)
- Galvanic Stair-Step (ISTEP)
Chrono Method
- Chronopotentiometry (CP)
- Chronoamperametry (CA)
- Chronocaulometry (CC)
Voltammetry
- Linear Sweep Voltammetry (LSV)
- Cylic Voltammetry (CV)
- Staircase Voltammetry (SCV) #
- Square Wave Voltammetry (SWV) #
- Differential Pulse Voltammetry (DPV) #
- Normal Pulse Voltammetry (NPV) #
- Differential Normal Pulse Voltammetry (DNPV) #
- AC Voltammetry (ACV)
- 2nd harmonic AC Voltammetry (SHACV)
- Fourier Transform AC Voltammetry (FTACV)
Corrosion Measurements
- Cyclic polarization curve (CPP)
- Linear polarization curve (LPR)
- Electrochemical Potentiokinetic Reactivation (EPR)
- Electrochemical Noise (EN)
- Zero resistance Ammeter (ZRA)
Standard supplyof Galvanostatic charge discharge potentiostat CS350M
CS350M potentiostat galvanosat *1
CS studio software*1
Power cable x1
USB cable x1
Cell/electrode cable x2
Dummy cell(1kΩ||100µF) x1
Manual
