Battery Formation Machine

SZO provides battery formation machines for the formation and activation stage of lithium-ion battery cell manufacturing. Formation equipment applies controlled charging and discharging profiles to newly assembled cells and records key electrical data during the process.

The suitable formation machine depends on the battery cell format, electrical requirements, production capacity and formation process. SZO's battery formation equipment can be used in different cell manufacturing setups, from pilot production to larger-scale production processes.

 

Battery Formation in Cell Manufacturing

 

Battery formation is a controlled charge and discharge process carried out after battery cells have been assembled. It is an important stage in cell manufacturing because the electrical behavior of the newly assembled cell needs to be established and monitored before the cell moves to subsequent production stages.

A formation machine controls the charging and discharging process according to defined voltage, current and time settings. Depending on the equipment configuration, the system can also monitor and record electrical data throughout the process.

For production applications, formation equipment is normally selected as part of the overall cell manufacturing workflow rather than as a standalone testing device.

 

Formation, Activation and Aging

 

Formation, activation and aging are related stages in battery cell production, but they serve different process purposes.

Formation

Formation uses controlled charging and discharging to establish the required electrical condition of a newly assembled cell. The process can be configured with specific voltage, current, cycle and termination conditions.

Activation

Activation is associated with bringing the newly assembled cell through its initial controlled electrical process. The exact sequence depends on the battery chemistry, cell design and manufacturing process.

Aging

After formation or related activation processes, cells may undergo battery aging under defined conditions before further inspection or production steps. Aging requirements vary according to the battery type and production process.

The formation equipment required for these stages depends on the cell format and the process parameters that need to be controlled and recorded.

 

Formation Machine Functions

 

A battery formation machine can combine several functions required for controlled cell formation and process monitoring.

Controlled Charging and Discharging

The equipment applies defined charging and discharging profiles to the battery cells. Voltage, current, time and termination conditions can be configured according to the formation process.

Independent Channel Control

Multi-channel formation equipment can process multiple cells while controlling individual channels according to the equipment configuration and process requirements.

Process Data Recording

Formation equipment can record information such as voltage, current, time and capacity during the process. Recorded data can be used for process monitoring and subsequent cell evaluation.

Safety and Process Protection

Formation systems can include protection functions for abnormal voltage, current, communication, power and other process conditions. The available protection functions depend on the equipment configuration.

Production Process Monitoring

For pilot and production environments, formation equipment can be connected with process-control software to monitor operating conditions and manage formation data.

 

Battery Formation Machine for Different Cell Formats

 

Formation equipment needs to match the structure and electrical requirements of the battery cell being processed. Cylindrical, pouch and prismatic cells can require different fixtures, connection methods and equipment configurations.

Cylindrical Cells

Formation equipment for cylindrical cells needs to accommodate the cell dimensions, electrical connection method and production arrangement used in the manufacturing process.

Pouch Cells

Pouch cell formation requires equipment and fixtures suited to the pouch cell structure and the required electrical connection and process conditions.

Prismatic Cells

Prismatic cell formation equipment needs to match the cell dimensions, terminal arrangement and production requirements. The available SZO formation equipment includes configurations for prismatic aluminum-shell lithium battery cells.

The appropriate machine should therefore be selected after confirming the cell format and the required formation process.