Potentiostat for Battery Test

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Company Profile

Wuhan Corrtest Instruments Corp.,Ltd

By certification [File Integrity]







Website:http://www.csechem.com/ http://kst2018.sin-ko.com/


Model CS350 single channel potentiostat galvanostat can be used in battery study, energy and materials, such as fuel cell, Li-battery, coin battery, perovskite solar cells, supercapacitor etc. The most common electrochemical methods or battery test include Cyclic voltammetry, constant current charge and discharge, EIS etc.

It contains a fast digital function generator, high-speed data acquisition circuitry, a potentiostat and a galvanostat. With high performance in stability and accuracy with advanced hardware and well-functioned software, besides battery test, it is also a comprehensive research platform for corrosion, electrochemical analysis, sensor, life science and environmental chemistry etc.


Dual-channel high-speed 16bit/high-accuracy 24bit AD converter;

Built-in frequency response analyzer(FRA), frequency range: 10μHz~1MHz;

High-bandwidth high input impedance amplifier unit

Built-in FPGA DDS digital signals synthesizer

High-power Potentiostat/Galvanostat/ZRA;

Potential control range: ±10V; Compliance voltage: ±21V;

Current control range: ±2A;

Potential resolution: 10μV; current resolution 1pA.


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.

CS Studio software can achieve real time saving of the measuring data. The data can be automatically saved even in case of sudden power off.

CS studio kit has a built-in versatile timing policy for combined measurements, which can facilitate the automation of experiments and save time.

Battery analysis: charge & discharge efficiency, capacity, specific capacitance, charge & discharge energy etc.

EIS analysis: Bode, Nyquist, Mott-Schottky plot


1. Impedance (EIS)

CS350 potentiostat applies correlation integral algorithm and dual-channel over-sampling technique, and has strong anti-interference ability. It is suitable for EIS measurements of high-impedance system (>109Ω, such as coating, concrete etc.). It can also be used to obtain Mott-Schottky curve and differential capacitance curve. During test, the software can display real-time open circuit potential(OCP) without entering.


EIS of AA6063 Al alloy in Ce3+ containing 3% NaCl solution

Polarization curve of Ti-based amorphous alloy & stainless steel in 3%NaCl solution

2. Polarization curve

It can complete linear polarization curve and Tafel plot measurements. The user can set the anodic reversal current (passivation film breakdown current) of the cyclic polarization curve to determine material’s pitting potential and protection potential and evaluate the its susceptibility to intergranular corrosion. The software employs non-linear fitting to analyze polarization curve, and can make fast evaluation of material's anti-corrosion ability and inhibitors.

3. Voltammetry

It can do the following electroanalysis methods: Linear Sweep Voltammetry(LSV), Cyclic Voltammetry(CV), Staircase Cyclic Voltammetry(SCV), Square wave voltammetry(SWV), Differential Pulse Voltammetry(DPV), Normal Pulse Voltammetry(NPV), AC voltammetry(ACV), Stripping voltammetry etc. It integrates calculation of peak area, peak current and standard curve analysis.


LSV curve: mesoporous carbon material in 0.1M KOH          CV curves of PPy supercapacitor in 0.5 mol/L H2SO4

4. Electrochemical Noise

With high-resistance follower and zero-resistance ammeter, it measures the natural potential/current fluctuations in corrosion system. It can be used to study pitting corrosion, galvanic corrosion, crevice corrosion, and stress corrosion cracking etc. Through noise spectrum, we can evaluate the inducement, growth and death of metastable pitting and crack. Based on calculation of noise resistance and pitting index, it can complete localized corrosion monitoring.

Electrochemical noise of low-carbon steel in 0.05mol/L Cl-+0.1mol/L NaHCO3

5. Full floating measurement

CS350 potentiostat galvanostat uses full-floating working electrode. It can be used for autoclave electrochemical measurements, on-line corrosion monitoring of metallic components under the ground (rebar in concrete, etc.)


6. User-defined methods

CS350 potentiostat galvanostat supports user-defined combination measurements. The user can set cyclic  timing measurements of an electrochemical method or several methods.

We are able to provide API functions and development examples, which facilitates some users’ requirements for secondary development and self-defined measurements.


Support 2-, 3- or 4-electrode system

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

Potential and current range: Automatic

PC and O/S requirement

Interface: USB 2.0

Operating System:

Windows 2000/NT/XP/ win7/win8/win10

Weight / Measurements

Net weight: 6.5kg Gross weight: 10kg

Instrument size: 36.5 x 30.5 x16cm; After package: 52.5 x 37.5x 22.5cm

Electrochemical Impedance Spectroscopy(EIS)

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 / electrochemical methods



Stable polarization

Open Circuit Potential (OCP)

Potentiostatic (I-T curve)


Potentiodynamic(Tafel plot)


Transient polarization

Multi-Potential Steps

Multi-Current Steps

Potential Stair-Step (VSTEP)

Galvanic Stair-Step (ISTEP)

Chrono methods

Chronopotentiometry (CP)

Chronoamperometry (CA)

Chronocoulometry (CC)


Cyclic Voltammetry (CV)

Linear Sweep Voltammetry (LSV)

Staircase Voltammetry (SCV) #

Square wave voltammetry (SWV) #

Differential Pulse Voltammetry (DPV)#

Normal Pulse Voltammetry (NPV)#

Differential Normal Pulse Voltammetry (DNPV)#

ACvoltammetry (ACV) #

2nd Harmonic A.C.Voltammetry (SHACV)


Differential Pulse Amperometry (DPA)

Double Differential Pulse Amperometry (DDPA)

Triple Pulse Amperometry (TPA)

Integrated Pulse Amperometric Detection (IPAD)


EIS vs Frequency (IMP)

EIS vs Time (IMPT)

EIS vs Potential (IMPE)(Mott-Schottky)

Corrosion test

Electrochemical Potentiokinetic Reactivation(EPR)

Electrochemical Noise(EN)

Zero resistance Ammeter (ZRA)

Battery test

Battery charge and discharge

Galvanostatic charge and discharge(GCD)


Data Logger

Electrochemical stripping/deposition

Bulk electrolysis with Coulometry (BE)

# There is corresponding stripping voltammetry method.

What the customers say Corrtest potentiostat

"I am writing this letter to recommend this service of M/S Wuhan Corrtest Instrument Corp., Ltd to you. Our group has been working with potentiostat system manufactured by Wuhan Corrtest Instrument Corp., Ltd and quite satisfied with the same. As and when required they provide online technical support. Though I have not purchased equipment consumables yet, but I believe they will supply it within a short notice as they have supplied the system to us within a short time. Moreover, free software system up-gradation adds more convenience using this system."

----Prof. Sachindranath Das from Jadavpur University, India


“The system has been installed and working fine. We appreciate the system and support service they provided to us. We have no hesitation in recommending them for purchase of any electrochemistry through them”

---- President YY Kwon from EG Tech AU Inc. S. Korea

“Our company procured a potentiostat system (CS310) from M/S Wuhan Corrtest Instrument Co., Ltd. in June 2015.

We have been using the potentiostat system manufactured by Wuhan Corrtest Instrument Corp., Ltd. and are quite satisfied with the same. The system was easy to set up and the performance to date has been satisfactory.

The unit was delivered promptly and their representative, Ms Yushan Zhang, was very responsive in responding to product queries.”

Based on our experience using the system from Wuhan Corrtest Instrument Corp., Ltd. thus far was a positive one. “

--- Jason Phua research manager in H2SG Energy Pte Ltd

“The company offers high quality service. We can say that we have always been satisfied by their work.

I can confidently recommend Wuhan Corrtest Instrument Co., Ltd. as a good and reliable supplier, and experts in their field.”

--- Priyashantha Premarathna from Sri Lanka