Automatic Vacuum Electrolyte Filling Machine for Lithium Battery Injection

Sequence number

Name

Function

Quantity (set)

1

Cell fixture

Four cell at one time

1

2

Four-station turntable

Carry cell fixture,support the whole equipment

1

3

Injection system

store, keep,transfuse the electrolyte and remove bubbles

1

4

Injection mechanism

Vacuum injection into the opening cell

1

5

Shaping&diffusion mechanism

Vacuum diffusion°assing and shaping after electrolyte injection

1

6

Pre-sealing mechanism

Pre heat sealing the cell after diffusion°assing

1

7

Frame

Sealing, supporting

1

Item

Specification

1.Electrolyte

1 、component

organic matter

2、 Density

1.0～1.5 g/cm3

2. Electrolyte

1、Injection mode

Vacuum injection of electric double-head pump

2、Injection accuracy

≤40g accuracy:±0.1g

3、Infusion volume range

10g-100g

4、Precision of injection volume after sealing

The accuracy of the weight after sealing and before injection can be less than (+0.2g).

5、Diffusion°assing mode

Secondary diffusion°assing, Maximum vacuum degree - 0.08 Mpa

6、Diffusion°assing time

Arbitrary setting of 1-99 seconds (Note: diffusion°assing time directly affects equipment efficiency)

3.Sealing

1、Sealing head width

5 mm±0.1 mm  （4-8mm changeable）

2、Sealing head length

170mm±0.2 mm

3、Pressure

0.1MPa～1MPa；Minimum adjustment accuracy is 0.1 MPa

4、Time

0.5s～99s；adjustable；

5、Sealing head temperature

room temperature～250℃；adjustable；accuracy:±1℃

6、Sealing performance

Flat surface, no wrinkles, no bubbles, no stripping between the aluminium-plastic film, good sealing performance

7、Sealing head material

NAK80

8、Temperature display

Display temperature deviation from actual temperature ±1℃

9、Temperature uniformity of sealing head

The range of temperature distribution is less than ±2℃

10、Temperature rise speed

It takes less than 20 minutes to rise from 25℃ to 200℃.

5. Product

1、First pass rate

≥99% (Except for bad incoming materials, such as too short air bag to inject liquid, etc.)

2、 Malfunction Rate

≤5%

3、Equipment production efficiency

Actual production≥16PPM(Calculate according to four acceptance types of cells on each set of fixtures)

Dry run≥20PPM(Calculate according to four acceptance types of cells on each set of fixtures)

4 、Appearance

Flatness, no wrinkles, no leakage, no drip, etc.

5、Total weight of the whole machine

About 3500 kg；Ratio of total weight to bearing area≤500kg/m2

6、Maximum size of equipment

L*W*H：2500mm×1700mm×2450mm

Water, electricity and gas requirements

Power supply

AC380V ±10%  50Hz/60Hz Power:6KW（self-prepared）

Compressed air source

≥0.6MPa  30L/S  （Utilization ratio:50%）

Drying gas source

≥0.6MPa（User-provided drying system）

Vacuum source

≤-0.09MPa   40L/S  （self-prepared）

Ambient temperature

20～50℃；Relative humidity：0～90%RH（User-provided dehumidification system）

Injection pump

Two sets of electric injection pump（self-prepared）