Mini Roll-to-Roll Laboratory Coating Machine for Battery Electrodes - Innate

Featuring a three-roll transfer coating system, the machine supports both continuous and intermittent coating for laboratory electrode coating trials, process optimization, and sample preparation. Customizable oven system is available for in-line drying of coated electrodes and functional films.

Three-Roll Transfer Coating System

The machine uses a three-roll transfer coating arrangement consisting of a metering blade, coating roll, and backing roll.

The metering blade regulates the slurry metering gap, while the coating roll transfers the slurry onto the substrate. The backing roll supports the web and contributes to the stability of the coating process. Together, these components help control coating deposition and film formation.

The coating result depends on the interaction between the roll configuration, metering gap, slurry rheology, roll speeds, and substrate properties.

Continuous and Intermittent Coating

The machine is designed to accommodate continuous coating and, where supported by the configured roll system and control functions, intermittent coating for patterned electrode samples.

These operating modes allow users to evaluate different coating conditions during battery electrode process development. The achievable coating pattern and repeatability depend on the machine configuration and process parameters.

Coating Adjustment and Process Evaluation

Manual metering blade adjustment allows users to change the coating gap during laboratory trials. An optional automatic adjustment system can be considered where required by the application.

Coating thickness and areal density uniformity should be evaluated using defined sampling locations and measurement procedures. For battery electrode applications, material characteristics, substrate thickness, slurry consistency, and drying conditions should also be considered when assessing the final electrode quality.

Customizable Configurations

The machine can be customized according to substrate characteristics and process requirements. Optional configurations include:

Oven System: Customizable in-line drying oven. Adjustable temperature range, multi-zone heating, air circulation and exhaust design are available to match electrode slurry and functional coating drying requirements.

Lamination Unit: For applications requiring film lamination or protective-layer application.

Heating System: For temperature-controlled coating processes or materials requiring heating.

Customized Winding System: To accommodate specific web-handling and roll-size requirements.

Corona Treatment Unit: For applications requiring improved substrate surface wettability or adhesion.

The final configuration can be determined based on the coating material, substrate, target coating specifications, and laboratory workflow.

Primary Applications

Lithium-ion battery cathode and anode electrode coating Electrode slurry coating trials and process development Laboratory-scale electrode sample preparation

Other Potential Applications

Adhesives and hot-melt adhesive formulations Resins and functional coatings Medical and hygiene materials Advanced materials research and laboratory testing

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