5V20A 64 Channel Hot Press Pressure Formation Machine For Pouch Cell Production
1. Equipment introduction:
This equipment is mainly used for the formation of polymer cells under high temperature and pressure. It mainly has heating and temperature control functions, pressure and pressure control functions, charging and discharging and data communication functions.
The whole machine consists of 1 set of energy feedback type, 5V20A-64 channel forming cabinet and 2 sets of fixtures. The fixtures are 16 layers of heating and pressing plates and 64
It is composed of constant current source channels. Each heating plate can be placed with 2 batteries diagonally. The fixture, constant current source and cabinet equipment are integrated.
2. Equipment composition
This equipment consists of four parts: temperature control system, pressure control system, forming cabinet system and fixture mechanism.
2.1 Temperature control system
(1) The glass fiber heating plate is attached to the surface of the aluminum plate;
(2) Independent temperature control of each heating plate;
(3) Touch screen + PLC integrated intelligent control;
(4) After the battery is formed, it is cooled naturally;
(5) Over-temperature alarm function.
2.2 Pressure control system
(1) It is vertically stacked and pressurized by 16 layers of aluminum sheets covered with insulating paper;
(2) PID pressure output precise control;
(3) The barometer displays the current air pressure.
2.3 Formation cabinet system
(1) Charge-discharge and over-charge and over-discharge protection functions
(2) Data network storage function
(3) Voltage detection and sorting function
(4) Smoke alarm function
2.4 Fixture and chassis mechanism
(1) Reliable docking function between positive and negative ears and contacts;
(2) Insulation protection of heating plate;
(3) The case cover can be quickly disassembled without tools;
2.5 Equipment advantages
1. The thickness of the battery is in the range of 4-10mm, and there is no need to replace the tab pressure block;
2. Nickel-plated copper contacts are used for corrosion resistance.
2.6 Equipment operation process:
Turn on the power → manually open the cabinet door → put the battery in the fixture → set the fixture parameters → lower the fixture and send it → remove the battery manually after the fixture ends
2.7 Schematic diagram of equipment:
Equipment Outline Dimensions
3. Applicable product parameters
| Cell height A |
80-230mm |
| Cell width B+side |
60-190mm |
| Cell thickness H |
4-10mm |
| Tab spacing C |
≥20mm |
| Pole shoulder width D |
≤75mm |
| Tab length E |
6-40mm |
4. Technical indicators
4.1 The main performance of the fixture mechanism
4.1.1 The main components of the heating plate: the bottom surface of the aluminum plate is laminated with a glass fiber heating plate, the top surface is laminated with a 1mm thick insulating plate, and the whole is covered with glossy business card paper.
4.1.2 Working mode: the cylinder is driven from top to bottom, the battery is placed in a fixed position between the two layers of heating plates, and the clamping force of the cell is realized through the shrinkage of the clamp, and at the same time, the positive and negative ears of the cell are in contact with the forming cabinet. point of reliable contact.
4.1.3 Pressure setting method: Enter the battery size and the required surface pressure for each section in the touch screen, and the system automatically calculates the required pressure and executes it.
4.1.4 Heating time: Take the room temperature as 25°C for example, ≈10 minutes to heat up to 60°C, and ≈15 minutes to heat up to 75°C.
4.1.5 The contacts used are four-wire gold-plated contacts, which have the advantages of accurate sampling, wear resistance and oxidation resistance of the contacts.
4.1.6 The gap between each layer of clamps is 20mm, and the distance between the pressing block and the contact is 6.3mm, which is convenient for loading and unloading the battery.
4.2. Basic technical parameters
| No. |
parameter name |
technical parameter |
Remark |
| 1 |
heating method |
Glass fiber heating sheet heating |
Independent temperature control for each layer |
| 2 |
Heating time |
10-15 Min |
related to ambient temperature |
| 3 |
temperature control range |
Normal temperature -85ºC |
Control accuracy: ±2ºC |
| 4 |
Pressure output range |
100-3000KG |
Pressure accuracy: ±30KG |
| 5 |
Number of constant current source channels |
64 channels |
|
| 6 |
Charge/Discharge Current Range (mA) |
200~20000 |
|
| 7 |
Current measurement accuracy |
±0.05%FS+0.05%RD |
|
| 8 |
Current Resolution (mA) |
1 |
|
| 9 |
Voltage measurement range (mV) |
0~5000 |
|
| 10 |
Charge Voltage Range (mV) |
0~4500 |
|
| 11 |
Discharge voltage range (mV) |
1800~4500 |
|
| 12 |
Voltage measurement accuracy |
±0.05%FS+0.05%RD |
|
| 13 |
Voltage Resolution (mV) |
0.1 |
|
| 14 |
Time measurement range and accuracy |
999 minutes/step, accuracy ±0.1% |
|
| 15 |
Device calibration method |
Software digital calibration |
|
| 16 |
Calibration cycle |
6 months |
|
| 17 |
Step content |
Constant current charging, constant current and constant voltage charging, constant current discharge, standing |
|
| 18 |
Step end condition |
Current, voltage, time, capacity |
|
| 19 |
working environment |
Temperature: 0~40ºC, relative humidity≤85% |
|
| 20 |
power supply |
Three-phase AC380V±10% 50Hz |
|
21 |
Power Efficiency |
The charging and discharging power supply adopts energy-saving power supply, and the battery discharge energy is fed back to the power grid. The maximum efficiency of power charging output is not less than 70%, and the maximum efficiency of power recovery is not less than 65%. |
|
| 22 |
total equipment power |
About 13KW |
|
| 23 |
Gas source |
0.4-0.75MPa |
|
| 24 |
Equipment size |
1400*960*1730mm |
(L*W*H) |
| 25 |
equipment weight |
About 700KG |
|
4.3 Main performance of chemical forming equipment
4.3.1 This equipment is specially used for the chemical formation process of polymer lithium batteries;
4.3.2 The working modes are: constant current charging, constant current and constant voltage charging, constant current discharge, shelving and circulation; the conditions of charge and discharge control are: constant current charging termination voltage value, constant current discharging termination voltage value, constant current and constant voltage Charging constant voltage value, current constant voltage charging termination current value, time termination value of various modes of work;
4.3.3 It has the function of data power-off protection, the incoming power continues to run, and it takes about 5 seconds to check once under the condition of under-voltage storage;
4.3.4 Save all step curves of each battery (including voltage-time, current-time, capacity-time, power-time, etc. curves), the user can freely choose the curve sampling conditions.
4.3.5 A variety of battery inspection interfaces, the battery inspection interface can choose graphical display, display comprehensive data, display classified data, abnormal display, etc.;
4.3.6 Minimum configuration of computer system: CPU above PII/300, memory above 64MB, hard disk space above 10GB, EGA/VGA color display, one CD-ROM, one mouse, MicrosoftTM Windows 2000 or above operating system, and one available RS232 serial port Communication port, printer supported by Windows. The computer system is self-configured by the user, and the number of microcomputer systems is determined according to actual needs.
4.4. Operating software will be provided at random (computer users prepare by themselves);
Appearance color of equipment: GB 9002 color card
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