Isobaric High Precision Aluminum Shell Battery Liquid Injection Machine

Product Overview

This isobaric high precision aluminum shell battery liquid injection machine is designed for controlled electrolyte filling of aluminum shell lithium batteries. It supports both primary injection and secondary injection, allowing manufacturers and research teams to manage liquid filling within one integrated process. The equipment combines automated injection, vacuum and pressure cycling, multiple resting stages, and post-process weighing to improve process consistency and production control.

The system is suited to battery research, pilot-scale cell fabrication, and aluminum shell lithium battery production. It accommodates battery widths from 50 to 180 mm, heights from 80 to 210 mm, and thicknesses from 25 to 75 mm, with compatible injection hole diameters from 1.2 to 2.0 mm. This makes the unit useful for varied cell formats in laboratory, academic, advanced materials, and manufacturing environments.

A glovebox-style enclosure maintains a sealed operating space supplied with dry gas. Positive internal pressure allows gas to escape while preventing external atmosphere from entering the chamber. Combined with precise metering, controlled resting, and a stated equipment uptime above 98 percent, this design supports repeatable operation in moisture-sensitive battery processes.

Key Features

• Primary and Secondary Injection Capability: The equipment supports both one-time electrolyte injection and secondary injection, enabling process flexibility for aluminum shell lithium battery manufacturing and development workflows.

• Isobaric Liquid Filling: Isobaric injection helps maintain controlled filling conditions for more consistent electrolyte transfer into the cell. The process is supported by an electronic ceramic variable pump with a single-stroke injection volume of up to 15 g.

• Electronic Ceramic Variable Pump: One dedicated pump provides controlled metering for each filling cycle. The specified single-stroke quantity is 15 g plus or minus 0.05 g, supporting repeatable dosing across production batches.

• Automated Vacuum and Pressure Cycling: The unit performs automatic high-pressure and low-pressure circulation after the operator loads the cell. Multiple resting stages, vacuum extraction, and pressurization are integrated into the filling process, with a maximum vacuum level of minus 0.09 MPa.

• Sealed Positive Pressure Enclosure: A glovebox-style cover encloses all operating actions. Dry gas is supplied to the sealed chamber, and positive pressure helps prevent outside air from entering during operation.

• Traceable Manual Loading Workflow: Operators manually scan and weigh unfilled batteries before placing them into the fixture. After automatic injection and conditioning, the batteries are removed manually and scanned and weighed again for process verification.

• Accurate Process Weighing: The electronic scale has an accuracy of plus or minus 0.1 g and a capacity of 8000 g. Pre-process and post-process weighing provides a practical control point for evaluating electrolyte addition.

• Fast Format Changeover: An experienced operator can complete a changeover in no more than 30 minutes. This supports flexible production planning when working with different compatible cell dimensions.

• High Equipment Availability: The stated equipment uptime is greater than 98 percent, excluding scheduled maintenance, pre-production preparation, and raw material changes. This specification is intended to reflect failures caused by the equipment itself.

• High First-Pass Yield: The equipment has a specified first-pass product qualification rate of at least 99.5 percent, supporting stable output and reduced rework in controlled operating conditions.

Applications

Technical Specifications

Product Identification and Compatible Cell Range

Injection and Conditioning Performance

Utilities and Installation Requirements

Operating Configuration

The compatible dimensional range should be confirmed against the cell drawing before ordering, particularly the injection hole location and edge distance. The system is supplied with one fixture, so fixture requirements should be reviewed when production involves multiple cell geometries. Actual overall dimensions should also be confirmed during final equipment configuration.

Resting duration can be set from 1 to 99 seconds, but the selected vacuum, pressurization, and resting sequence will influence cycle efficiency. The stated performance values depend on suitable dry compressed air, an appropriate vacuum source, environmental moisture control, correct operator handling, and regular equipment maintenance.

Why Choose This Product

• Controlled Filling for Sensitive Cells: Isobaric injection, ceramic variable-pump metering, and automated vacuum and pressure cycling provide a structured method for managing electrolyte addition.

• Built for Stable Laboratory and Production Work: A sealed positive-pressure enclosure, dry-gas operation, and defined utility requirements create a controlled working environment for moisture-sensitive processes.

• Measurement-Based Process Verification: Pre-process and post-process weighing, barcode scanning, injection controls, and a specified first-pass qualification rate of at least 99.5 percent support accountable production workflows.

• Efficient Format Management: The unit supports a broad compatible cell size range and allows experienced operators to complete changeover within 30 minutes, helping laboratories and pilot lines respond to changing development requirements.

• Designed for Operational Continuity: Equipment uptime above 98 percent and a robust integrated process help reduce equipment-related interruption when the unit is correctly installed, maintained, and supplied with prepared utilities.

Contact KINTEK for a quotation, cell compatibility review, and a configuration discussion for your aluminum shell battery liquid injection requirements.

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