Explosion-Proof Baghouse System for Lithium Battery Electrode Material Production - LEFILTER Solution

Product Introduction:

LEFILTER's explosion-proof (ATEX/Directive 2014/34/EU compliant) baghouse system is engineered for the critical safety requirements of battery material manufacturing. The housing is constructed to withstand significant overpressure, featuring rugged, reinforced design and explosion relief vents ducted safely outdoors. All electrical components, including the PLC, fan motor, and solenoid valves, are rated for Class II, Division 1, Group E/F/G hazardous environments. Internally, we employ conductive anti-static filter bags grounded through the cage to the structure, preventing dangerous static discharge. The filtration media is specifically selected to handle the fine, lightweight nature of carbon black and lithium compound powders while maintaining high permeability and easy cleanability.

Application Area:

This system is deployed in the mixing, coating, and calendaring areas of lithium-ion battery cathode and anode production. The active materials—such as lithium iron phosphate (LFP), nickel manganese cobalt oxide (NMC), graphite, and conductive carbon black—are extremely fine, highly combustible powders (Kst values often >200 bar*m/s). During processes like powder conveying, mixing with binders, and slurry preparation, fugitive dust escapes into the workspace. A single spark in this environment, combined with a sufficient dust cloud concentration, can trigger a devastating explosion. Effective dust control is therefore a fundamental requirement for personnel safety, asset protection, and business continuity in this high-growth industry.

Our Solution:

LEFILTER provides a holistic safety engineering approach. Our solution begins with source capture at weigh stations, mixers, and conveyor transfers using sealed hoods and pick-up points. The ductwork is designed with proper flow velocities to prevent dust settling. The core baghouse is not only built with explosion vents but is also often integrated with chemical isolation systems to prevent flame propagation through the ducts. We implement continuous pressure monitoring and spark detection systems for early hazard warning. Crucially, our systems are designed for high collection efficiency to minimize dust accumulation in the plant, thereby reducing the secondary explosion risk. This comprehensive approach ensures a safe production environment while also recovering valuable raw materials, directly improving your material yield and cost efficiency.

Call to Action:

Building or upgrading your battery material production line? Partner with LEFILTER to integrate safety by design. Contact our explosion protection experts for a hazard analysis and a compliant, reliable dust control proposal.