Single Channel Potentiostat for Supercapacitor

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Wuhan Corrtest Instruments Corp.,Ltd

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


Corrtest single channel potentiostat for supercapacitor research application.

Supercapacitor (suepercapacitor) is a new type of energy storage device. It has the advantages of short charging time, long service life, excellent temperature characteristic, energy saving and green environmental protection. Supercapacitors are widely used as power balance of lifting devices, can provide super large current power, as the start up power of vehicle, the starting efficiency and reliability are higher than the traditional battery, so it can replace the traditional battery partly or even completely. The traction energy for vehicles can be used to produce electric vehicles, replace the traditional internal combustion engines, and transform the existing trolleybus. In addition, it can also be used for energy storage of other mechanical and electrical equipment.

Click below video link to watch the video of single channel potentiostat for supercapacitor:

Supercapacitors can be divided into two categories according to their energy storage principles: double layer capacitors and pseudo-capacitors (Faraday capacitors). Supercapacitors usually consist of four components: double electrode, electrolyte, fluid collector and isolator. Among them, the electrode material is a key point, which determines the main performance parameters of the capacitor. The commonly used electrode materials are carbon-based electrode, conductive polymer electrode and metal oxide electrode. The electrode material of double layer capacitance is porous carbon material. Faraday pseudo-capacitance electrode materials are metal oxides or hydroxides, conductive polymers and so on.


Supercapacitors can be divided into symmetric supercapacitors and asymmetric supercapacitors according to whether the positive and negative electrodes are the same material. Double layer capacitors are the earliest symmetric supercapacitors, which are mainly composed of activated carbon (AC) electrode materials with high specific surface area. In asymmetric supercapacitors, The first pole adopts electrode materials with Faraday pseudo-capacitance or conventional batteries, and another pole uses electrode materials with double-layer capacitance.


(1) carbon electrodes

Carbon materials have stable chemical properties, good corrosion resistance and thermal conductivity, and are the only commercial supercapacitor electrode materials. Carbon based electrode materials have developed specific surface area, reasonable pore volume and pore size distribution, good conductivity and wettability. At present, the main carbon-based electrode materials are activated carbon, activated carbon fiber, carbon aerogel, carbon nanotubes and so on.


(2) Conductive polymer electrode

Conductive polymer is a new type of electrode material, and the greatest advantage of that is it can follow the corresponding polymer structure by molecular design, so as to obtain the materials that meet the requirements. Conductive polymer electrode materials can perform ideal capacitance behavior in the electrolyte of organic and inorganic systems, and their energy storage is mainly realized as Faraday pseudo-capacitance principle. Polymer capacitors can obtain higher working potential, usually more than three times as much as carbon materials. At present, Polyaniline (PANI), polypyrrole (PPY), polythiophene (PTH) and its derivatives have been widely used in supercapacitors study.


(3) Metal oxide electrode

Some metal oxides and hydrate are good materials for supercapacitor electrode. The Faraday quasi-capacitance produced by the metal oxide electrode in supercapacitor is 10 ~ 100 times that of the double-layer capacitance on the surface of the carbon based material electrode. Ruthenium dioxide (RuO2) and sulfuric acid aqueous solutions are the most successful systems. But ru is too expensive to be commercialized. Therefore, the current research focus has shifted to other cheap transition metal oxides such as Nio, Co3O4, MnO2, as well as metal oxide mixtures or metal oxides / conductive carbon-based complexes.

The main technical specifications of supercapacitors include specific capacity, charge / discharge rate, cycle life and so on. The CS series electrochemical workstation specially designed the constant current charge-discharge test method for the performance evaluation of the supercapacitor, which can evaluate the cycle life of the capacitor very conveniently.

Available Models of Corrtest single channel potentiostat for supercapacitor materials research:

Electrochemical method






Stable polarization

Open Circuit Potential (OCP)

Potentiostatic (I-T Curve)


Potentiodynamic (Tafel)


Transient polarization

Multi-Potential Steps

Multi-Current Steps

Potential Stair-Step (VSTEP)

Galvanic Stair-Step (ISTEP)

Chrono Methods

Chronopotentiometry (CP)

Chronoamperometry (CA)

Chronocoulometry (CC)


Linear Sweep Voltammetry (LSV)

Cyclic Voltammetry (CV)

Staircase Voltammetry (SCV)

Differential Pulse Voltammetry (DPV)

Normal Pulse Voltammetry (NPV)

Square wave voltammetry (SWV)

AC voltammetry (ACV)

Differential Normal Pulse

  Voltammetry (DNPV)

2nd Harmonic A.C.Voltammetry


Stripping Voltammetry

Potentiostatic stripping

Linear stripping

Staircase stripping

Square wave stripping


EIS vs Frequency (IMP)

EIS vs Time (IMPT)

EIS vs Potential (IMPE)

Corrosion Test

Cyclic polarization curve (CPP)

Linear polarization curve (LPR)

Electrochemical Noise (EN)

Zero Resistance Ammeter (ZRA)

Battery Test

Battery charge and discharge

Galvanostatic charge and discharge (GCD)


Data Logger

Waveform generator

Disc machine control

What about after-sales service?

Corrtest has technical dept. with profound electrochemical background and abundant experience. Whenever the customers have questions, they can contact our engineers for help. We will solve by emails, calls, remote operations etc. Service includes: installation guidance, theoretical explanation in electrochemistry, experimental scheme making, instrument use explanation, data analysis and treatment, users'training etc.

Warranty period of the instrument is 3 years.

We will provide lifelong repair service for instruments that we sell.

Supply upgraded software for the same model.

How about delivery?

Usually we can deliver goods within 7 working days after payment is received. The goods are delivered by express such as DHL, FedEx, UPS etc.