When GME Recycling officially introduced Lithium Guard, we expected interest from the ULAB recycling industry.
What surprised us was the volume—and the quality—of the questions.
In just a few months, our engineering team has been contacted by recyclers, plant managers and technical consultants from around the world, all asking essentially the same question:
How can ULAB recyclers safely manage the growing presence of lithium batteries in conventional lead-acid battery streams?
The question is no longer theoretical.
The global expansion of electric mobility, energy storage systems, e-bikes, power tools and portable electronics is dramatically increasing the number of lithium batteries reaching waste collection networks. Despite improvements in collection systems, accidental mixing with used lead-acid batteries (ULAB) continues to occur.
For a recycling plant, one incorrectly sorted battery can be enough to create a major operational event.
Here are some of the questions we receive most often.
Why is lithium contamination becoming one of the biggest challenges for ULAB recyclers?
The challenge is simple:
ULAB recycling plants were never designed to process lithium batteries.
A hammer mill is engineered to safely crush lead-acid batteries, separating lead paste, metallic lead, plastics and electrolyte.
Lithium batteries behave completely differently.
When mechanically damaged, punctured or crushed, they can experience internal short circuits, rapid heat generation and, in some chemistries, thermal runaway—a chain reaction capable of releasing extremely high temperatures and flammable gases.
Even if a fire does not occur immediately, a damaged lithium cell can ignite seconds or even minutes later, making the event difficult to predict and manage.
For this reason, the objective is not to deal with lithium batteries inside the process.
It is to prevent them from entering the process in the first place.
What exactly is Lithium Guard?
Lithium Guard is GME Recycling’s AI Vision system developed to detect lithium batteries before they enter the battery breaker.
Installed directly on the battery feeding conveyor, the system continuously analyses incoming batteries and identifies lithium units before mechanical fragmentation begins.
Its philosophy is straightforward:
Detect before damage occurs.
Can it detect damaged or irregularly shaped batteries?
Yes.
Unlike traditional sensor-based systems, Lithium Guard uses AI Vision capable of recognising batteries with different dimensions, geometries and orientations.
The system can detect objects down to approximately 2 cm, allowing reliable identification even when batteries are partially damaged or mixed inside heterogeneous ULAB feedstock.
Will it reduce plant capacity?
No.
Lithium Guard operates at conveyor speeds up to 6 metres per second, corresponding to approximately 60 tonnes per hour, depending on plant configuration.
Detection is performed in real time without creating bottlenecks in production.
Can it be integrated into an existing recycling plant?
Yes.
Many customers assume AI inspection is only suitable for new facilities.
In reality, Lithium Guard has been designed to be integrated into existing ULAB plants after an engineering assessment of conveyors, available space, PLC architecture and battery removal area.
Does Lithium Guard automatically remove detected batteries?
This is probably the question we answer most often.
Standard configuration
When a lithium battery is detected:
- the AI system generates an alarm on the HMI/PLC;
- the conveyor stops automatically;
- the operator safely removes the battery before production resumes.
Optional robotic configuration
Plants seeking a fully automated solution can equip Lithium Guard with an optional robotic picking system that automatically removes the detected battery without operator intervention.
Why not rely only on manual inspection?
Because the economics of battery recycling are changing.
Modern recycling plants process increasingly larger volumes at higher conveyor speeds.
At the same time, lithium contamination is becoming less predictable.
Continuous manual inspection alone cannot guarantee the consistency required for industrial-scale operations.
AI Vision delivers repeatable inspection, 24 hours a day, reducing operator fatigue while supporting existing safety procedures.
Is Lithium Guard only about safety?
Safety is the primary driver—but not the only benefit.
The platform also provides operational intelligence, including:
- lithium detection frequency;
- contamination trends;
- supplier quality analysis;
- input-flow monitoring;
- historical reporting;
- process optimisation data.
In other words, Lithium Guard transforms every detection into actionable operational information.
What happens if a lithium battery reaches the hammer mill?
Every plant is different, but the potential consequences are well understood across the recycling industry.
A crushed lithium battery may generate:
- thermal events inside the crushing section;
- conveyor fires;
- damage to downstream equipment;
- contamination of the process stream;
- emergency shutdowns;
- production losses;
- maintenance costs;
- increased operational risk for personnel.
Considering that modern ULAB recycling plants often operate continuously, even a short unplanned shutdown can have significant economic consequences.
For many operators, prevention is therefore considerably less expensive than recovery.
Is Lithium Guard the future of AI in ULAB recycling?
We believe it is only the first step.
Lithium Guard represents the first module of GME Recycling’s broader AI Vision platform.
The same architecture can be expanded to monitor:
- battery sorting efficiency;
- metallic and non-metallic fractions;
- polypropylene quality;
- predictive box replacement;
- overall production performance.
AI is evolving from a detection tool into a complete operational support platform for modern recycling facilities.
The industry has already changed.
The conversations we’re having today are very different from those we had just a few years ago.
Recyclers are no longer asking whether lithium batteries will enter ULAB recycling plants.
They are asking how to detect them before they become a safety issue.
That shift tells us everything.
At GME Recycling, we believe the next generation of ULAB recycling will combine mechanical engineering, process expertise and Artificial Intelligence to make recycling plants safer, smarter and more productive.
What would you ask our engineering team about Lithium Guard?
We’d be happy to answer it in our next FAQ edition.
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