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.
