Battery Coating System

Prepares and coats new battery formulations onto metal foils with the goal to help CPI improve their battery R&D

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Key features

Mobile robot integrationIntegrates with an ER Flex mobile robot platform

DAC mixingMixes pots in a dual axis centrifuge

Foil coatingDrawdown bars are used to coat slurries on to thin copper or aluminium foils

Oven dryingWet coating is dried by a PID controlled hot air blower

Foil stackingCompleted foils are cut off the roll and stacked for offline assembly

Syringe transferFormulation is transferred from pots into dispensing syringes with a custom designed injection moulded plunger

Ultrasonic washingDirty drawdown bars are cleaned with an ultrasonic washer

ImagingImages of dried coatings are captured for reference. Foils are labelled for traceability

GloveboxSystem is containted in a large glovebox which is used to create a Hepa filtered dry atmosphere

Overview

The system picks preloaded pots of battery slurry (or similar) formulations, mixes and dispenses them, and
uses drawdown bars to create thin film coatings on foil substrates. These foils are then oven dried and
output to a stack of interleaved, coated and dried foils. Once complete, these foils are manually removed
from the system and analysed offline. The target throughput for this system is 48 coatings in 15 hours.

The system has been designed so that it can be integrated with a mobile robot platform. This will be used to
deliver new pots to system which come directly from a previous Labman formulation system.

The entire top half of the system is contained inside a large glovebox. This is fitted with an air management
unit capable of drying the internal atmosphere down to -40°C dewpoint and uses activated charcoal to
capture solvents.

“Once systems are operational the level of aftercare and support is second to none. I can say without question that Labman’s customer service is the best I have experienced from any vendor, automation or otherwise.”

— Lynn DonlonPrincipal Scientist - High Throughput Formulation

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