Main Function

GITT

Applies intermittent constant-current steps with rest periods to measure steady-state voltage, enabling calculation of lithium-ion diffusion coefficients and reaction kinetics.
DCIR

Applies a current pulse and measures the instantaneous voltage change to calculate DC internal resistance, useful for health assessment and quality control.
Cycle Life Testing

Evaluates capacity fade and lifespan under repeated charge–discharge cycles, commonly used for lifetime prediction and consistency checks.
Pulse Simulation Test

Simulates real-world transient load profiles to analyze instantaneous power response and thermal behavior.
Rate Charging/Discharging Test

Measures capacity and efficiency at various charge/discharge rates to assess fast-charging capability and high-power performance
dQ/dV Curve Analysis

Derives capacity–voltage differential curves from charge/discharge data to diagnose reaction mechanisms and degradation patterns.

System Features

  • Suitable for coin cells, small-capacity batteries, small pouch cells, supercapacitors, three-electrode systems, and battery material research; meets diverse testing needs of material manufacturers, universities, and research institutes.
  • Modular design with 16 independent channels per unit.
  • Supports various tests: cycle life testing, rate charge/discharge testing, pulse simulation, GITT testing, DCIR testing, and dQ/dV differential capacity curve analysis.
  • Charge/discharge modes include constant current (CC), constant voltage (CV), constant current–constant voltage (CC–CV), constant power, and constant resistance modes.
  • Equipped with multiple safety protections such as power-off protection, offline testing, and overheat protection.
  • The charge/discharge test system and environmental chamber can be centrally controlled via PC.

Key System Parameters

Model SCT-5V200mA-16CH
Current Range 0.02–200mA (3 ranges)
Current Accuracy ±10μA (20mA), ±25μA (50mA), ±0.1μA (200mA)
Voltage Range Charge: 0–4500mV; Discharge: 2000–4500mV
Voltage Accuracy ±0.04% FS
Response Time < 1ms
Sampling Rate 10Hz
Max Power/CH 1W
Stability ±0.1% FS
Charge Modes CC, CV, CC-CV, CP, CR, Pulse
Discharge Modes CC, CV, CC-CV, CP, CR, Pulse
Cut-off Conditions Voltage, Current, Time, Capacity, Energy, -△V

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