2. Innovative Solutions of TMAX Battery Cycle Tester

1) Provides accurate benchmark data for lifespan prediction, inventory efficiency, self-discharge, and micro-reaction testing, with voltage and current precision of 0.01%.

2) Supports a wide range of cell types, capacitor materials, half-cell, three-electrode, coin cell, and small-capacity testing.

3) Triple protection (software, hardware, firmware) ensures safe operation for both equipment and samples.

4) Supports EIS testing from 0.01 Hz to 100 kHz.current control.(ERT7008 available)

5) Supports electrochemical testing methods such as multi-scan rate cyclic voltammetry, linear sweep voltammetry, GITT, PITT, CA, and CP.

6) Flexible auxiliary channel integration for temperature control, surface temperature monitoring, three-electrode setups, and pressure detection.

7) Online calibration and independent operation of channels without interference.

8) Private cloud platform and cloud server backup ensure data security and confidentiality.

3. Application Scenario

Application Cases

Case 1: EIS Analysis–Different Cell Impedance Analysis

High-frequency EIS impedance range: 0.01Hz~100kHz, meeting the high-frequency impedance test requirements of 10mΩ~1kΩ level batteries.

Case 2: Cell Cycle Impedance Test

Case 3: Accurate DCIR Performance

Case 4: CV(Cyclic Voltammetry) to Evaluate Materials Properties

The peak current of the reversible reduction is proportional to the square root of the scan rate.

It is consistent with the CV (Cyclic Voltammetry) curves obtained from the electrochemical workstation.

Case 5: dQ/dV Curves to Evaluate Material Phase Changes

dQ/dV Curve Analysis:

Curve Smoothness:

High-precision equipment: dQ/dV curves are smooth and continuous, capable of capturing subtle electrochemical changes.

Low-precision equipment: Curves exhibit noise or discontinuities, with difficulty in accurately identifying detailed features.

Electrochemical reaction characteristics:

High-precision equipment: Clearly reveals characteristic peaks of multi-stage reactions in the battery, uncovering material phase transitions or side reactions.
Low-precision equipment: Characteristic peaks are obscured by measurement noise, prone to missing critical information.

In dQ/dV curve analysis, high-precision equipment is crucial for studying electrochemical details, improving data reliability, and identifying material characteristics. Low-precision equipment can perform basic testing but may miss critical details, especially in high-demand research scenarios.

Case 6: Charge and discharge Evaluation of Materials Gravimetric Capacity

Gravimetric capacity tests were conducted on eight graphite half-cells, demonstrating better consistency in specific capacity!

Case 7: Evaluation of Coulombic Efficiency in Cells via Charge and Discharge Testing

Coulombic Efficiency Testing:

A lifetime prediction model based on coulombic efficiency can forecast battery capacity degradation. For effective lifetime prediction, the accuracy must be maintained at least at 1‱, with noise interference kept below 10 ppm.

Case 8: Evaluation of Cells Self-Discharge Under Constant Voltage Charging

High precision supports leakage current testing of large capacity and low internal resistance cells.
Replace the time-consuming and labor-intensive solution of measuring K value, enabling faster and more accurate monitoring of battery cell self-discharge characteristics.

Coin Cell Leakage Current Test:

Electrodes: NCM (ф14 mm) vs. Lithium (ф20 mm)
Capacity: 2 mAh
Equipment: ECT6008 High-Precision Device
Test Procedure: Constant Current/Constant Voltage (CC/CV) Charging: 0.8 mA, 3.8 V, for 72 hours

TMAX High-Precision Electrochemical Property Analyzer is capable of monitoring currents as low as the nanoampere (nA) level, supporting the measurement of minute leakage currents.

Specifications

	ERT6008 (Cyclic Voltammetry Analyzer)		ERT7008 （Electrochemical Impedance Analyzer）
Photo
Type	ERT6008-5V6A	ERT6008-5V12A	ERT7008-5V100mA	ERT7008-5V6A	ERT7008-5V12A
Voltage	0-5V		0-5V	±5V
Current	0.6μA~6mA 6mA~60mA 60mA~0.6A 0.6A~6A	1.2μA~12mA 12mA~120mA 120mA~1.2A 1.2A~12A	10nA~0.1mA 0.1mA~1mA 1mA~10mA 10mA~100mA	0.6μA~6mA 6mA~60mA 60mA~0.6A 0.6mA~6A	1.2μA~12mA 12mA~120mA 120mA~1.2 A 1.2A~12A
★EIS testing ★	×		EIS (Electrochemical Impedance Spectroscopy) testing： 0.01Hz~100kHz
★Electrochemical features ★	Cyclic Voltammetry (CV), Linear Sweep Voltammetry (LSV), GITT/PITT/CA/CP Testing
Temp. Chamber	-20~80℃
Channel	8
Maximum Sampling Rate	100 SPS
Output	Four-Electrode Aviation Connector (Supports three-electrode testing with auxiliary voltage integration)
Current & Voltage Control Accuracy	± 0.01% F.S.
CP&CR Accuracy	± 0.02% F.S.
Resolution	16bit
Input Power	500W/1000W		30W	500W/1000W
Operating Modes	Charge-Discharge Modes: Constant Current Charge/Discharge (CC) Constant Voltage Charge/Discharge (CV) Constant Current-Constant Voltage Charge/Discharge (CC-CV) Constant Power Charge/Discharge (CP) Constant Resistance Charge/Discharge (CR) DCIR (Direct Current Internal Resistance) Rate Charge/Discharge Electrochemical Modes: GITT (Galvanostatic Intermittent Titration Technique) PITT (Potentiostatic Intermittent Titration Technique) CA (Chronoamperometry) CP (Chronopotentiometry)