1, The profile
The device is suitable for semi-automatic liquid injection of batteries. The liquid injection needle is manually put into the liquid injection port on the cache tank, and the liquid is injected in the way of suction, automatic vacuum extraction and automatic pressure.
2. Raw materials and components
1. Product size:
| The battery model | W | L | H | H1(A column) | S(Distance between pole column and injection port) |
| Unit:mm | |||||
| 2770170 | 70 | 170 | 27 | 0-20 | ≥4 |
| 36171110 | 171 | 110 | 36 | 0-20 | ≥4 |
3. Process requirements and parameters
3.1. The sample is vacuumed first and then injected with liquid, then injected with liquid once, and then the vacuum and pressure are alternately placed after the injection. The absorption consistency is good, the uniformity is good, the efficiency is high, the precision is high, and the operation is convenient and reliable.
3.2. Liquid injection process: battery vacuum extraction → precision liquid injection pump quantitative liquid injection → in the battery vacuum state, electrolyte inflow and absorption → automatic pressure, low vacuum alternate static;
3.3. Liquid injection volume 0-200g can be adjusted
3.4. Infusion accuracy ±0.5%
3.5. Liquid injection efficiency: 2ppm (the actual efficiency is determined according to the amount of liquid injected and the vacuum time)
3.6 liquid injection volume CPK > 1.3
4. Equipment requirements
4.1. It has the functions of vacuum pumping, electrolyte quantitative injection and pressurized rapid injection, of which the function of pressurized rapid injection can be selected and the pressure can be set
4.2. The minimum vacuum pipe diameter shall not be less than 12mm, and the main pipe shall not be less than 25mm
4.3 the vacuum tube is only in contact with the product, not the electrolyte part.
4.4 operation requirements: equipment manual feeding, alignment of liquid injection hole, automatic vacuum pumping, liquid injection, manual feeding after liquid injection.
4.4.1 equipment manual feeding and liquid injection hole alignment: the operation process adopts tooling positioning, which cannot cause damage to the battery appearance and liquid injection hole
4.4.2 automatic vacuum injection:
4.4.3 precise metering pump is used for battery liquid injection. The liquid injection amount is adjustable from 0g to 200g, and the liquid injection precision is guaranteed to be ±0.5%.
4.4.4 the vacuum degree to be reached before liquid injection can be selected, with 20~1000Pa optional.
4.4.5 no electrolyte shall be sprayed or leaked during liquid injection.
4.4.6 adjustable standing time: in order to reduce the injection time, the device retains the function of quick pressurized injection.
4.4.7 manual blanking after liquid injection: simple and convenient for loading and unloading.
4,Working conditions of equipment
4.1 power supply: single-phase AC220V, voltage fluctuation range: ± 10%;
4.2. Compressed air: 0.4-0.6mpa;
4.3. Ambient temperature: 20-35℃;
4.4. Relative humidity: 30-55% HR;
4.5 there is no corrosive gas, liquid or explosive gas on site.
