Battery internal resistance and open circuit voltage automatic test device

KT-OCV-IR-128/256V1 cylindrical lithium battery bed of needles battery voltage and internal resistance test system is used to measure the open circuit voltage and internal resistance of the battery. The equipment adopts a bed of needles pneumatic structure.

Performance

1. Use power

Voltage: AC 220*(100%±10%)V; 300W

Frequency: 50Hz

2. Test accuracy

Open voltage measurement range: 20V;

Open pressure measurement accuracy: ±0.01%rdg.±3dgt

Voltage resolution: 0.1mV

Internal resistance measurement range: 300mΩ, 3Ω two levels

Internal resistance measurement accuracy: ±0.5%rdg.±5dgt

Internal resistance measurement resolution: 0.01mΩ (300mΩ file), 0.1mΩ (3Ω file)

3. KT-OCV-IR-128V1: 128 channels per unit, voltage and internal resistance measurement completion time: within 128s

KT-OCV-IR-256V1: 256 channels per unit, voltage and internal resistance measurement completion time: within 1256s

4. Communication method: RS-485, baud rate 57600bit/s;

5. Overall dimensions of the equipment (subject to the actual size): about 1000mm (width) * 1200mm (depth) * 1500mm (height)

product structure

When working, put the battery tray with the corresponding battery into the OCV-IR machine, send a command through the PC, the cylinder on the test system starts, drives the needle bed to move, and clamps the positive and negative poles of the battery. After the needle bed clamps the battery, start the battery open circuit voltage/internal resistance measurement system to measure the open circuit voltage and internal resistance of each battery. After the test is over, release the upper and lower needle beds, and transmit all test data to the data terminal through the network.