Solar Cell IV Tester
The Solar Cell IV Tester is specialized equipment that automatically sorts solar cells based on key performance parameters such as power, efficiency, open-circuit voltage, and short-circuit current by measuring their current-voltage characteristics (IV characteristics). It ensures consistent quality of battery cells.
Product Features
Manual Probe Positioning: Utilizes manual placement of the cell and operation of probes or fixtures to establish electrical contact with the cell electrodes. Offers operational flexibility but relatively lower efficiency compared to automated equipment.
Precise IV Characteristic Measurement: Core function is the precise measurement of the solar cell's current-voltage characteristic curve under simulated illumination (typically an AAA-grade solar simulator, AM1.5G spectrum).
Key Parameter Calculation & Sorting: Based on the measured IV curve, it automatically calculates and displays the cell's key performance parameters, such as maximum power, conversion efficiency, open-circuit voltage, short-circuit current, fill factor, series resistance, etc. It then automatically sorts and categorizes cells according to preset standards (e.g., power bins).
High Efficiency, Reliability & Quality Assurance: The equipment integrates high-precision source meters, high-speed data acquisition, and stable light sources (e.g., long-life pulsed xenon lamps), ensuring repeatability and accuracy of test results. It is a critical device for guaranteeing the performance consistency and quality control of outgoing cells.
Technical Specifications
Model: YHCT-AAA
Cell Specification: Compatible with monocrystalline, polycrystalline cells, PERC, HJT, TOPCon, etc.
Light Source: Complies with IEC60904-9:2020 standard
Spectral Range: 300~1200nm
Irradiance: 1000W/m²
Testing Direction: Vertically Downward
Irradiance Non-Uniformity: ≤2%
Irradiance Instability (LIT): ≤2%
Single Flash Pulse: 10~100ms
Test Result Consistency: ≤0.5%
Electrical Parameter Measurement Error: ≤2%
Loading Method: Manual Loading/Unloading
Effective Test Area: 230*230mm
Product Applications
Cell Manufacturing Plants (Core Application): Used for the final performance testing and binning of cells before shipment. Cells are sorted into different grades based on parameters like power and efficiency, ensuring consistent quality of outgoing products. It is an indispensable quality control device on production lines.
Module Assembly Plants (Incoming Inspection & Pre-Sorting): Performs incoming inspection of purchased cells before module assembly to verify if their performance meets requirements; or conducts pre-sorting to group cells with similar performance for precise string matching later, enhancing the final module's photovoltaic conversion efficiency and output power.
PV R&D & Laboratories: Used for R&D testing and performance evaluation of new cell technologies, materials, or structures. Precisely measures IV characteristics and related parameters, providing critical experimental data support for technical improvements and efficiency gains.
Quality Inspection & Failure Analysis: Serves as an authoritative testing tool for third-party inspection agencies or internal departments to conduct quality sampling, certification testing, or failure analysis on cells, identifying causes of electrical performance anomalies (e.g., micro-cracks, low-efficiency cells, process defects).
