Prismatic Cell Electrolyte Equal Pressure Filling Machine

Prismatic Cell Electrolyte Equal Pressure Filling Machine

SPECIFICATIONS

The TOB-LKZYJ-06 prismatic cell electrolyte equal pressure filling machine is suitable for prismatic cell filling, the filling machine is compatible with primary and secondary filling. The cells will be manually scanned and weighed, and then placed into the fixture for automatic filling, high and low pressure auto-circulation, and then manually removed from the fixture for liquid filling and scanned and weighed. The battery will be taken out from the fixture manually and then scanned and weighed after filling. The equipment is used in the dry room.

First Filling:
Manual scanning and weighing, loading to fixtures → Filling → High and low pressure cyclic diffusion → Manual take out battery → Manual secondary weighing, insertion of formation nails

Second Filling:

Manual scanning and weighing, loading to fixtures → System interaction message to get the last weighing data → Filling → Manual take out battery → Manual insertion of formation nails

Main Technical Parameters

1. Filling mode: Equal Pressure filling.

2. Equipment filling precision: precision ≤ 8 ‰ g

3. Filling pump specifications: electronic ceramic variable pump (single stroke liquid injection volume ≤ 15g): a set.

4. Filling pump precision: single stroke filling volume 15g ± 0.05g

5. Static mode: multiple static, vacuum pressurisation, maximum vacuum -0.09Mpa

6. Static time: 1 ~ 99 seconds arbitrary settings (Note: static pressure time directly affects the efficiency of the equipment)

7. Electronic weighing accuracy: ± 0.1g

8. Electronic weighing range: 8000g

9. Change time: skilled not more than 30 minutes

10. Equipment graft rate: > 98% (refers to the failure rate caused by equipment, equipment, regular maintenance, pre-production preparation, change of raw materials, etc. are not included)

11. Equipment products of qualified rate: ≥ 99.5%

Basic Parameters

1. Power supply configuration: voltage: AC220V±10% 50Hz

2. Power: 3KW

3. Compressed air: pressure: 0.5-0.7mPa (5kgf-7kgf/cm2)

4. Compressed air usage: 10L/S after drying, filtering, pressure stabilisation.

5. Vacuum source: ≤-0.098Mpa, 20L/S

6. Environmental dew point: <-50 ℃ (dehumidifier customers to provide)

7. Load-bearing: installation of ground bearing requirements: > 500KG / m 2

8. Equipment weight: about 2.0T.

9. Equipment size: 1500L × 1600W × 2050H (to the actual size)

Equipment Functional Requirements

Code scanning module: 1 set

*Dynamic code scanning, the information is automatically transmitted to the upper computer for battery and filling one-to-one bundling;

*Scanning gun brand: China

*Automatic code scanning

*Can scan barcode and two-dimensional code, horizontal code and vertical code can be

*Scanning bad products, automatic alarm, manual processing

*Sweep code success rate ≥ 99.9%

Weighing module: 1 set

*Electronic scale accuracy: 0.1g; range 8000g, the accuracy of weights within ± 0.005g, before and after the weighing difference ± 0.03g within 

*The use of independent grounding bracket, reasonable alignment, the use of counterweight platform installed independently to avoid vibration interference; counterweight block ≥ 20KG

*Real-time stand-alone communication detection function:

*Scanning and weighing data are automatically entered into the host computer and correspond to each other; after weighing, the data are bound and processed by the industrial computer and stored in the database; the weighing system data are exported through EXCEL tables, with no loss of weighing data.

*The weighing data is output through EXCEL table, no loss of weighing data. The weighing weight is bound to the barcode of the battery cell and uploaded to the buyer's traceability system;

*Brand of electronic scale: domestic, with automatic reset to zero every time.

*Provision of 50g weights for the calibration of the electronic scales, with a space reserved for the weights.

*The electronic scale is equipped with an anti-impact mechanism.

Filling fixture mechanism: 1 set

*Put the core into the fixture manually (fixture one out of six)

*The fixture is positioned with a positioning guide for positioning. Simple changeover without adjustment.

*Vacuum gauge is corrosion-resistant vacuum gauge

Filling mechanism: 1 set

*One filling cup corresponds to one battery.

*Adjustment of filling volume parameters

*Equal Pressure filling mode.

*Six sets of filling cups and six sets of preparation cups.

*Automatic cleaning of the filling port and cleaning of the filling cups.

*The material of the filling cup is SUS316, the filling cup is ≤750g, and the roughness of the inner arm is ≤0.4μm.

*Liquid filling mouth and liquid filling nozzle alignment accuracy ± 0.5mm.

*Adjustable filling volume: 0-750g, can be adjusted automatically according to the battery weight setting.

*Cavity pressure preservation test: meet the conditions of 0.8MPA, the system leakage rate ≤ 1.0KPA/MIN.

*Automatically complete the battery vacuum, filling, vacuum ≤ -95KPA, vacuum adjustable 

*Support single cell production

*Equipped with a variable single-head filling pump.

*When secondary filling, the system is required to have a closed-loop control function, automatically adjusting the parameters of the filling pump according to the information of before and after weighing and filling, and interacting with the information of primary filling to obtain the former weighing data to ensure that the total amount of electrolyte retained in the battery remains unchanged.

*Configuration of proportional valve to pressurise or depressurise the chamber, and step control of chamber pressurisation and depressurisation through the programme to ensure that the battery does not deform.

*If the chamber cannot reach the set pressure during vacuuming and pressurising, it should be shut down and alarmed automatically.

*After the equipment is shut down due to power failure or gas failure, the cavity, vacuum piping and pressurised piping should be self-locking.

* Supply electrolyte filling piping system and should be sealed design, the sink should be shunt design.

*Each independent pipeline configuration valve body switching vacuum or electrolyte.

* Each vacuum pipeline configuration digital vacuum gauge, its range to meet the -100KPA detection.

*The vacuum pipe entering the chamber is made of SUS304 (food grade, surface roughness ≤ 0.8μ).

*The cup is equipped with a cone valve to control the switching of liquid and gas lines, and the bottom of the cup is equipped with a quick dismantling nozzle for filling liquid.

*Configuration of the residual liquid collection mechanism to meet the liquid cup body filling nozzle at the same time to collect the residual liquid, the filling nozzle and the residual liquid parts of the non-sealing design.

*The design of the liquid filling nozzle should meet the following requirements: sealing with the step of the liquid filling hole of the battery when filling liquid.

*Material of filling nozzle: EPDM, all static seals adopt O-ring, material: EPDM.

Filling tank mechanism: 1 set

*The system contains electrolyte filtration, bubble removal and storage.

*System hardware: filter, bubble removal tank (plus agitation), liquid storage tank, filling pump, all materials in contact with electrolyte are SUS316, and all tanks are equipped with liquid level detection sensors.

*There is a filter in front of the de-bubbling tank of the equipment, and the transition precision is 1 micron.

*Liquid storage tank and bubble removal tank are pressurised with nitrogen, which is provided by our nitrogen plant.

* In addition to the bubble tank, liquid storage tank is equipped with four liquid level high and low limit sensors (UU, UL, LU, LL), liquid storage tank out of the design of electrolyte filters ≥ 100 mesh (mesh pore size ≤ 74μm, SUS316)

*UU: If the inlet valve leaks, or the UL sensor is damaged, the electrolyte is increasing, and the liquid level reaches UU, the alarm stops.

*UL: When replenishing liquid, it will stop automatically when the liquid level reaches UL,

*LU: When the filling electrolyte is consumed, the liquid level reaches LU and it will be replenished automatically.

*LL: If the LU sensor is broken, the liquid level reaches the LL level and the alarm stops.

*Liquid filling pump and liquid storage tank are designed close to each other, shortening the length of liquid filling pipeline.

*The vacuum main line is designed with electrolyte filter to prevent electrolyte from entering the vacuum pump.

*De-bubbling tank needs vacuum -90KPA, holding pressure for 2min.

*The volume of the tank is 20L.

*All the liquid pipelines can not be bent.

*The filling volume is set by touch screen and adjusted automatically.

* Precision ceramic valve with reciprocating rotary motion.

* Static seals are made of EPDM.

Residual liquid recovery system: 1set

*The residual liquid collection tank is made of SUS304 material.

*Liquid level sensor, automatic alarm when the liquid level is full.

Fire safety system: 1 set

*Equipment guards need to be flame-retardant materials.

*Equipment platform using Q235 surface chrome or aluminium plate, surface anodic oxidation amount, and then laying stainless steel plate gold.

Control system

*The machine is controlled by industrial control computer and PLC as the control core, and the head is controlled by temperature control module to ensure the best one-time effect of the product.

*The equipment is equipped with up and down process machines and communication interface (Ethernet interface) with the central monitor to facilitate remote monitoring and checking the status of the machine and parameter settings.

*The machine is equipped with an industrial control unit to read the code data from the scanning gun and the weighing data before and after filling, to determine whether the filling volume is NG or OK, and to save the data in the computer.

*The data is uploaded to the MES system according to the MES interface requirements.

*Data is stored locally and automatically exported to the specified directory according to the set cycle time, and the data is stored in a folder in days (the data is the same as the uploaded MES data, forming a local backup).

*If the upload fails due to MES network interruption or other reasons, the software will store the failed upload file to disk. When the interface returns to normal, the upload will occur automatically.

*The locally stored data will be automatically exported to the specified directory according to the set cycle time, and the data will be stored in the folder in days, reserving for later expansion of MES interfacing. Waiting for Party A to provide MES connection details. Upgrade the data acquisition software of the upper computer.

Fixed frame of the whole machine

*Adopting square welding to make the whole machine stable during operation.

*The layout, operation and maintenance of the equipment are in accordance with ergonomics, and enough space is reserved for personnel to operate and maintain the machine.

*Transparent plexiglass is used for the observation window of the hood.

*Reasonable distribution of the foot, the overall distribution in the four corners of the equipment, local reinforcement needs to be reasonably arranged.

* Electric cabinet around the configuration of sufficient cooling fan, all equipment fan power supply needs to be independent, electric cabinet lighting, lighting circuit independent air switch.

* Equipment within the alignment wire for the wire channel equipment in the sealing ring within the territory of the upper and lower material is equipped with a transition bin. Into the drying air outlet / exhaust hole outside diameter of 70.

The main components and functions of the equipment:

General equipment configuration and standards

1. The equipment is equipped with an upper and lower process machine and a communication interface (Ethernet interface) with the central monitor to facilitate remote monitoring and checking of the machine's status and parameter settings; through the system's automatic arithmetic, the battery's liquid filling process can be judged automatically, and the data will be saved in the computer at the same time;

2. The colour of the equipment is international standard warm grey 1C.

3. The whole equipment is installed with safety light grating;

4. Emergency stop button switches are installed at the front and rear of the equipment;

5. All parts of the design in line with the principle of man-machine operation, neat and generous appearance;

6. equipment circuits, gas lines towards a unified and tidy

7. away from the machine wall 100MM measurement, equipment noise ≤ 80 db;

8. Electrical box, wire lines need to have anti-electrolyte corrosion protection measures; filling tube must use white TFL tube, other air tubes using corrosion-resistant white PE gas pipe; cylinder with stainless steel quick-adjustment valve connector; moving parts of the wire required to use a well-known brand of wire suitable for reciprocating movement;

9. All lines, pipelines and air lines should be clearly labelled;

10. The equipment complies with the national safety standards for electromechanical equipment and the safety standards and requirements of the new energy company's safety code;

11. Randomly attached to the Chinese operating instructions and equipment maintenance manual;

12. The seller provides the buyer with a list of parts and drawings of the relevant varieties of replacement;

13. Provide a list of wearing parts, including name, number of machines, specifications or drawings, brand, and other information;

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