Electrochemical workstation CS350M, also called potentiostat/galvanostat, consists of DDS arbitrary function generator, high power potentiostat/galvanostat, 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. Compliance voltage is ±21V. EIS frequency range is 10uHz~1MHz. The current can be boosted up to 20A/40A with a current booster CS2020B/ CS2040B. Electrochemical workstation CS350M is the most advanced single-channel model with 40+ electrochemical techniques such as EIS, CV, LSV, OCP, Tafel, LPR, GCD, I-t, I-v etc. Electrochemical workstation CS350M is a versatile comprehensive tool for almost all electrochemical tests of various fields such as corrosion, battery & energy, advanced materials, electrocatalysis, sensor, electrodeposition etc.

Applications of electrochemical workstation CS350M

● Study of Energy materials (Li-ion battery, solar cell, fuel cell, supercapacitors), advanced functional materials

● Electrocatalysis (HER, OER, ORR, CO2RR, NRR)

● Corrosion study and corrosion resistance evaluation of metals; quick evaluation of corrosion inhibitors, coatings, and cathodic protection efficiency

● Electrosynthesis, electroplating/electrodeposition, anode oxidation, electrolysis

Application of electrochemical workstation CS350M

Corrosion: Eectrochemical workstation CS350M includes all the electrochemical techniques for corrosion measurement such as OCP, polarization curve (potentiodynamic), EIS, Cyclic polarization CPP (passivation curve), Electrochemical Potentiokinetic Reactivation (EPR), Hydrogen diffusion test, ZRA, Electrochemical noise, etc. It can be used to study metal corrosion mechanism and corrosion resistance, and evaluate the coating durability and sacrificial anode current efficiency. It can also be used for rapid screening of corrosion inhibitors, fungicides, etc.

Left: Polarization curves of Ti-alloy& stainless steel in 3%NaCl solution Right: EN of low-carbon steel in 0.05mol/LCl+0.1mol/LNaHCO3

Eectrochemical workstation 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 (such as coating, concrete etc)

Salt spray aging test of high impedance coating CV curve of PPy supercapacitor in 0.5 mol/L H2SO4 solution

Energy & Battery

With techniques LSV, CV, galvanostatic charge and discharge (GCD), Constant potential/ current EIS, and precise IR compensation circuit, Eectrochemical workstation CS350M is widely used in supercapacitor, Li-ion batteries, sodium-ion batteries, fuel cell, Li-S batteries, solar cell, solid-state batteries, flow batteries, metal-air batteries etc. It is an excellent scientific tool for researchers in the fields of energy and materials.

Electrocatalysis

● Eectrochemical workstation CS350M can measure the half-wave

potential (ORR), overpotential (HER, OER) of the catalyst, and has the function of peak power density and energy density calculation.

● Long-term cyclic measurement for ORR, OER, HER,

CO2RR by techniques such as cyclic voltammetry,

potentiostatic, galvanostatic. Faraday efficiency can be

measured with a double channel electrochemical workstation(bipotentiostat).

LSV curve of catalysts in alkaline solution

● Maximum current can be 20A and compliance voltage can be 30V, and with IR compensation technique,

Eectrochemical workstation CS350M can precisely measure the overpotential of the electrode, which is a big advantage in electrocatalysis field.

Electroanalysis

Eectrochemical workstation CS350M includes all the voltammetric methods such as NPV, DNPV, SWV, ACV, and can be used for fast analysis of the trace elements in the solution. Voltammetry stripping methods can do the Quantitative analysis according to the stripping peak current.

Advantages

Full floating

Electrochemical workstation CS350M Is designed as full-floating, and can be used for electrochemical study of working electrode connecting to earth, such as autoclave, metal part in bridge, concrete

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. The data is compatible with Excel, Origin, and can be directly opened.

EIS

● Electrochemical workstation 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 (such as coating, concrete etc.)

● With constant current carrier and DC bias technology, electrochemical workstation model 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...)

Multi electrode system

● Support 2-, 3-, 4-electrode system, can be used to test battery internal resistance or 4-electrode thin film impedance measurement

● With Zero resistance ammeter for galvanic current 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, which is convenient for secondary development and test methods customization.

High current, high compliance options

●With the CS2020B/CS2040B booster, the current of electrochemical workstation CS350M can be boosted to 20A/40A, which meets the requirement in fuel cell, power battery, electroplating, etc

●Can customize the instrument to be 30V high compliance voltage, which meets the test requirement in low-conductivity solutions (organic system, concrete system etc), especially suitable for carbon and nitrogen reduction study.

Versatile data analysis

CS Studio is the software for Corrtest electrochemical workstation model 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.

● Multi-parameters Polarization curve

● EIS fitting

● Electrochemical noise analysis

● Pseudo capacitance calculation

● GCD specific capacitance, efficiency

● Mott-Schottky plot analysis

● CV 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 set the intervals, wait time etc between each experiment.

Combination Test: corrosion tests

Combination Test: Pseudo capacitor tests

Techniques of electrochemical workstation CS350M

Q: What is the difference between an electrochemical workstation and a DC power supply?

A: The control accuracy of an electrochemical workstation is higher than that of a DC power supply, and there are many test methods/techniques in an electrochemical workstation. The voltage and current of a DC power supply can be very large, such as tens to hundreds ampere, but there are fewer electrochemical techniques (generally only constant current and constant voltage). An electrochemical workstation generally supports 2-electrode, 3-electrode, and 4-electrode system, while a DC power supply generally supports only 2-electrode system.

Q: Can I use the demo mode software before purchasing an an electrochemical workstation?

A: Yes. We can send software so that you can operate under demo mode without connecting to an electrochemical workstation.

Q: What is 2-electrode and 3-electrode system?

A: 3-electrode system
The electrochemical workstation measures and controls the voltage difference between a WE and a RE. Current flow between the WE and CE is measured.

Working Electrode(WE): a sample of the corroding metal being tested.
Reference Electrode (RE): an electrode with a constant electrochemical potential.
WE and RE constitute measuring circuit. There is no current flow on RE.
Counter Electrode (CE): a current-carrying electrode that completes the cell circuit.
WE and CE constitute polarization circuit. Current flows from WE to CE.

2-electrode system
There is no separate RE involved in the experiment in 2-electrode system. When using the electrochemical workstation for 2-electrode system, the CE can be used as RE to provide reference potential. During the measurements, the user simply need to connect the RE&CE clamp to a same electrode.