Overview of feedback square pack lithium battery capacity test cabinet
1. Product description
The lithium battery automatic detection cabinet is mainly composed of a computer, a communication interface and a battery detection cabinet. The battery detection cabinet consists of a fixture and a plate body placed on the fixture, constant current and constant pressure
It consists of source, sampling circuit, capacitance control circuit, single chip microcomputer and control panel.
It is mainly used for power battery capacitance, capacity test and Cycle life test, and is the mainstream in the field of power battery detection equipment, meeting the pulse charge and discharge test of power battery
Test, DCIR(DC internal resistance) test, Cycle life test, rate charge and discharge test
Second, functional characteristics
Square pack battery capacity
Cycle life detection...
Power, capacity, Energy detection...
Power battery virtual assembly: charge and discharge curve fitting, battery consistency assessment and detection.
High rate charging and discharging ability detection.
Three, the main performance
1, each device can only meet the voltage range of 256 batteries for constant current and constant voltage charging and constant current discharge test.
2, the invention patented constant current - constant voltage power supply, constant current to constant voltage switch without impact, especially suitable for lithium-ion battery charging requirements.
3, the equipment uses a single chip computer as the control center, with peripheral sampling circuit, it can be controlled by the superior computer, when the computer is connected to work, it can save all
The complete charge and discharge curve of the channel can also be separated from the superior computer and operated through the control panel to complete constant current or constant voltage charging, constant current discharge test and time sorting
Wait for work.
4, each battery completely has an independent constant current constant voltage source, its own loop does not affect each other.
5, install a light emitting diode above each battery fixture as a working status display, when the discharge is completed, can be used to indicate the battery capacity sorting.
6, with power failure protection function, after the call can continue to run the original workflow.
7, the upper computer can be set up 32 working parameters, 256 cycles, each machine can be connected to 1 to 6 testing cabinets (recommended less than 5).
8, supporting software functions
1) The graphic operation interface is used to display the voltage, current, time, capacity and other data of each battery, and the corresponding working status and abnormal conditions are displayed in various colors.
2) Any segment battery capacity indicator (up to 100 segments).
3) Data points can be recorded according to the change conditions of voltage, current and time to form a complete charging and discharging curve data, and the curve data point time interval is less than 15 seconds.
4) A variety of conditions (capacity, time, open circuit voltage, discharge platform, etc.) for battery sorting function.
5) Automatically calculate constant current charging ratio, capacity loss, discharge efficiency, average voltage, termination voltage and other data.
6) Operator permission setting, hierarchical operation.
7) Can display charge and discharge curves, cycle diagram.
Iv. Application scenarios
Cell factory
Battery recycling plant
Five, square pack battery rack
The device uses the cylinder as the execution device instead of the manual opening and closing process of the fixture. A cabinet system is equipped with two close switches, one close switch on each side, and each close switch controls the 8-layer battery rack. The cylinder drives the plate clamp to perform the linkage, complete a clamping action, and the clamp can move freely.
Software introduction
6. Test monitoring data
Equipment management
Work step management
Volumetric setting
The battery node is enabled
Refresh the Settings list
6.1 Device Management
Power I address
Change the power port P(default: 1024).
The automatic detection system controls all power supplies through the switch, and the communication protocol is UDP
6.2 Work Step Management
Working step process parameters The edited working step is downloaded to the power supply according to the battery specifications to set the battery voltage, current, temperature protection range. All the edited data can be saved as a file for next use by opening the previously saved file 6.3 Partition Settings
6.4 Enabling a Battery Node
Setup run
Click to enable
6.5 Test Curve Diagram
7, system configuration requirements 1, the minimum configuration of the computer system :PD/300 CPU, 64MB memory, 6.4GB hard disk space, EGANGA color display, a CD-ROM, a mouse, Microsoft WindOWS 98 or above operating system, Windows 5 supported printers. 2, the computer system is configured by the user, and the number of computer systems is determined according to actual needs. 3, it is recommended that users equip each computer with UPS power supply to prevent damage to the computer or data when the power grid is cut off. 4, the device starts the instant current is large, the user for the device to configure the line power switch, need to consider the power switch action current is not lower than the starting current of the device, so as to avoid switch tripping phenomenon. 8. Technical parameters and specifications
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Equipment model name
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BTS5V10A 256 feedback type square pack lithium battery capacity test cabinet
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Number of channels
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256 cells can be tested simultaneously in a single device with 256 channels
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Control mode
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Single point control & full container control
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Fixture mode
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10A flat fixture
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Battery size
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100mmWx145mmH X10mmD
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System input power
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15 KW
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input
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voltage
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380±10% 50Hz
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Electric current
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Max. 63A
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Power factor
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PF acuity 0.95
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Current harmonic
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High quality energy feedback: discharge energy high quality feedback to the power grid, THDI≤0.05, high efficiency and energy saving, no pollution to the power grid; High efficiency, will not cause the test environment temperature rise, save the investment of other auxiliary equipment.
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Charging efficiency
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≥80% (full load)
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Feed efficiency
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≥75% (full load)
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exportation
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Test channel point
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256 pieces per set
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Voltage measuring range
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0~5V, resolution 1mV
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Discharge measuring range
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0.8 V ~ 5 V
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Voltage measurement accuracy
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(plus or minus 0.01% FS + 3 DGT)
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Constant voltage setting range
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DC 1.5 to 4.5V
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Constant pressure setting accuracy
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(plus or minus 0.01% FS + 3 DGT)
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Battery voltage Range of the charging voltage
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DC 0 to 5.0V
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Battery voltage Discharge voltage range
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DC 5.0 to 1.5V
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Constant current range
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0~10A, resolution 1mA
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Current setting accuracy
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(plus or minus 0.01% FS + 3 DGT)
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Accuracy of current measurement
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(plus or minus 0.01% FS + 3 DGT)
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Time frame
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0 to 30000 minutes per work step
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Communication mode
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Ethernet
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Data presentation
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Comprehensive data
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Set working information, station number, cycle number, test step number, termination state, open circuit voltage, average voltage, termination voltage, time, capacity, power, termination current, constant current charging capacity, constant voltage charging capacity, constant current ratio, constant voltage ratio, discharge efficiency, loss ratio, cumulative discharge capacity, capacity time voltage value of curve characteristic data points, You can choose to set conditions and so on.
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Classified data
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The open circuit voltage, average voltage, termination voltage, termination current, capacity, power, termination conditions and other data of the corresponding cycle or test step can be independently classified and displayed.
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Data export
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Data can be sent to EXCEL, ACCESS, WORD files, and poured into MDB database system format files.
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Curves and data
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All display mode
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The time voltage and current curves of all test steps can be displayed at the same time, and the real-time data of the curves can be displayed at the same time.
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Independent step display
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The required work curve can be selected according to the user's own setting, and the corresponding curve real-time data.
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Statistical statement
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Statistical data
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Enter the required statistical interval, the data can be graded statistics, qualified quantity, qualified rate, maximum value, minimum value, average value, etc., can be automatically counted out.
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Distribution map
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Displays graphs for each capacity interval of statistics.
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printout
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With curve data print preview, output function
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Programmable working mode and
Variable control regulation
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Constant current charging (C_CC)
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Voltage cutoff, time cutoff, -△V termination value
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Constant Voltage charging (C_CV)
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Current cut-off, time cut-off
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REST (REST)
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Time cutoff
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Constant current discharge (D_CC)
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Voltage cut-off, time cut-off
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CYCLE (CYCLE)
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The number of terminating cycles that can be set
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Sorting method (bar code information database management system sorting, this function is only limited to users with bar code information management system requirements. Parameters related to battery internal resistance need to be configured with an internal resistance test system.)
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1, sorting by capacity 2, sorting by running time 3, platform time 4, sorting by open circuit voltage 5, constant current ratio 6, sorting by balanced voltage 7, sorting by voltage change value 8, sorting by curve fitting (characteristic voltage curve point) 9, self-discharge rate K1, K2, 10, OCVI/OCRI test time, voltage, battery internal resistance; OCV2/OCR2 test time, voltage, and battery internal resistance; OCV3/OCR3 test time, voltage, battery internal resistance; 11. The capacity and time corresponding to fixed-point platform 1; The capacity and time corresponding to the fixed platform 2; The capacity and time corresponding to the fixed platform 3; The corresponding capacity and time when the fixed point is equal to 4; The capacity and time corresponding to the fixed point platform 5; Cell capacitance voltage; Battery capacity: battery capacity duration; The single or multiple combinations of the above sorting methods can be selected according to the user
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The luminescent tube lights indicate the sorting, grouping and deriving discharge current: discharge open circuit voltage; Discharge average voltage; Discharge capacity; Discharge duration: discharge loss ratio; Discharge efficiency: discharge termination voltage; Voltage change during capacitance division: median voltage; Users can select the conditions of participation according to the actual situation to carry out sorting and pairing.
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Charge and discharge mode
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Constant current charging, nickel-metal hydride charging, lithium charging, constant voltage charging, constant current constant voltage charging (constant flow constant voltage smooth transition, prevent current sharp and large current to the battery, protect the battery): constant discharge, constant power discharge, constant resistance discharge:
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Charging efficiency
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≥80%(full load)
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Discharge recovery efficiency
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≥75%(full load)
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Number of cycles can be set
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1-256 times
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Cycle range
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1-9999 times
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Programmable work step
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64 work steps
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Current response speed
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Minimum step time :Is
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Sampling inspection cycle
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≤5s
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Power failure protection renewal function
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With intelligent power failure protection measures, in the battery test process, any time there is a power failure or power failure of the power supply system (CPU storage control system power failure protection renewal function with internal power support), the test system can ensure that no data loss, after re-powering, the test system has a self-recovery function, can be seamlessly connected from the last power failure. Continue the test process.
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Safety protection function
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Over voltage protection, under voltage protection, over current protection, under current protection, over capacity protection, lightning protection. Voltage sampling line break protection function: Check that the voltage sampling circuit and the current line voltage difference is greater than a certain value protection, stop charging and discharging.
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Device communication mode
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The terminal computer control equipment uses Ethernet.
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Bar code information management
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The device control system can be compatible with the BarcodeMIS battery barcode information management system through the network.
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Heat dissipation mode
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Air cooling, low noise axial fan exhaust heat dissipation.
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Working power supply
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AC380V±15%, 50Hz, maximum power consumption ≤13KW;
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Working environment
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Ambient temperature -10~40~C, relative humidity ≤90%RH.
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Structural dimension
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1500m m★750m m★1900m m(W ★ D ★ H)
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