Cylindrical Cell Electrolyte Filling and Vacuum Degassing Machine for Laboratory Use

Category

Process Technical Parameters

Equipment filling accuracy

Single filling amount ≤ 5 g ± 0.1 g (multiple fillings can be realized)

Filling-pump delivery precision

Pump precision ≤ 5‰; metering ceramic pump

Filling

Normal-pressure filling

Vacuum degassing

Evacuate the cell to the set vacuum value, up to six segments. Time setting (0–99 s)

Fixture

18650 cells, 5 × 5

Equipment utilization

98% (only failures caused by this machine)

First-pass yield

99.6% (only defects caused by this machine)

No.

Mechanism Name

Qty.

Description

1

Fixture

1

a) Place 18650 cells on the fixture in a 5 × 5 layout.    

b) When changing models, only the fixture needs to be replaced.    

c) The fixture is equipped with dowel pins for precise positioning.

2

Filling mechanism

1

a) Y-axis of filling adopts a module for position movement; spacing and number of fillings can be set.    

b) Z-axis of filling adopts a cylinder.    

c) Filling nozzle material: SUS316.

3

Vacuum degassing

1

a) Perform vacuum degassing on the cell after filling (time adjustable).    

b) Vacuum can be controlled ≤ −90 kPa.    

c) Pressure-holding time and cycles ≤ 6.    

d) Equipped with analog vacuum gauge (vacuum set on touchscreen).    

e) Vacuum leakage per minute ≤ −3 kPa.    

f) With power-off / air-loss protection.

4

Filling pump (metering pump)

1

a) Filling amount adjusted by micrometer, simple and convenient.    

b) Precision ceramic valve with reciprocating rotary motion.    

c) Static seals: EPDM.    

d) Ceramic pump core material: alumina, wear-resistant.    

e) Filling accuracy: ≤ ±5‰ g.    

f) Single maximum filling amount: 5 g, multiple fillings can be realized.

5

Electrolyte tank system

1

a) Equipped with two tanks: storage tank and filling tank.    

b) Automatic liquid feeding.    

c) Storage tank has degassing function—rotating while vacuuming; after bubble removal, flows into the filling tank.    

d) Inlet equipped with filter screen.    

e) Storage tank low-material alarm.    

f) Filling tank low-material alarm causes machine stop.    

g) Tank material: SUS316.    

h) Seals: corrosion-resistant (EPDM).    

Each storage tank capacity ≥ 2 L; each storage tank must be installed with 4 level sensors, to detect level status. During liquid feeding, if the level does not change, the equipment shall alarm.

6

Control system

1

Controlled by industrial PC and PLC for the whole machine; the sealing head is controlled by a temperature-control module, ensuring optimal one-pass result.

No.

Name

Brand

Remarks

1

Pneumatic components

AIRTAC / Domestic

2

Linear guide

HIWIN

3

Ball screw

HIWIN

4

Linear bearing

YTP / HRB

5

Servo motor / driver

Delta

6

PLC

XINJE

7

Touchscreen

XINJE

8

Stepper motor

Jianghua Motor

9

AC motor

Weibang Motor

10

Temperature-control system

XINJE

11

One-out-one electronic filling pump

Dongguan Jiyanda

Category

Specification

Overall dimensions

L × W × H ≈ 550 × 800 × 650 mm

Weight

60 kg

Power supply (by Buyer)

Voltage: AC220V ±10%, 50 Hz; Power: 3 kW

Compressed air (by Buyer)

Pressure: 0.5–0.7 MPa (5–7 kgf/cm²); Usage: 3 L/s; dried, filtered, regulated

Vacuum (by Buyer)

≤ −0.095 MPa; 2 L/s

Relative humidity (by Buyer)

0–90% RH

Air / Dust (by Buyer)

No saline gas, toxic or corrosive gases; no conductive dust

Magnetic field & vibration (by Buyer)

No magnetic field affecting the device; no shocks or vibration