Lithium-ion Battery Shredder Recycling Machine

Release Time：2026-08-28 13:54:29 Source：Lithium Battery Recycling Machine Share：

A lithium-ion battery shredder is a new type of environmentally friendly equipment specifically designed for the crushing and sorting of waste lithium-ion batteries. It uses high-speed rotating blades to shear and crush waste batteries. The lithium-ion battery shredder is the first crushing stage in the lithium-ion battery recycling process. Its core technology is designed to prevent fires and explosions caused by battery short circuits and electrolyte leaks during the crushing process. Lithium-ion battery shredders can also be equipped with an inert gas protection system. Strict control of oxygen content is essential. Today, we will provide a detailed analysis of this process.
 


 

Inert Gas Protection and Safety Monitoring

The primary function of a lithium-ion battery shredder is to suppress the release of energy that occurs during the instant of battery fragmentation. Inert gas is continuously injected into the interior of the equipment. Commonly used inert gases include nitrogen and carbon dioxide. The oxygen concentration is maintained below 5%, thereby eliminating the oxygen required for combustion at its source. Multiple temperature and pressure sensors are installed within the crushing chamber. As soon as a sensor detects excessive local temperature or abnormal pressure, the control system immediately activates a high-pressure fine water mist spray system to rapidly cover the heat source area. The spray system quickly lowers the surface temperature of the battery electrodes, preventing heat from conducting to adjacent battery cells. Additionally, the equipment is equipped with a pressure relief device that releases a shock wave when internal pressure reaches a critical point, thereby preventing damage to the equipment itself.

 

Stepped Crushing Structure

Unlike traditional shredders, lithium-ion battery shredders designed specifically for recycling utilize a dual-shaft or multi-shaft stepped crushing structure. The upper set of high-stage crushing rollers has a wider gap (approximately 30–50 mm). It can directly crush entire small battery modules or individual cells. The gap between the second-stage crushing rollers is 5–15 mm, which further shreds the battery casing, positive and negative electrodes, plastic separators, and other components. This multi-stage structural design reduces the impact load per crushing cycle, preventing short circuits caused by battery casings bursting due to excessive instantaneous pressure. The internal monitoring system is designed such that if a sudden surge in current (indicating a battery short circuit) is detected, the control system will reverse the crushing rollers within 0.2 seconds, eject the battery, and re-feed it. This prevents the high temperatures generated by a sustained short circuit. Additionally, both the interior of the crushing chamber and the blades are coated with tungsten carbide to prevent the formation of a conductive path between the metal crushing rollers and the electrode sheets.
 

Fully Automated Control

The lithium-ion battery shredder not only shreds batteries but also performs step-by-step sorting. Through optimized blade design, rotational speed regulation, and vibration control, the equipment can efficiently process batteries of various sizes, models, and chemical compositions, providing stable feedstock conditions for subsequent high-temperature pyrolysis and multi-stage sorting. The intelligent control system further enhances production efficiency and operational convenience. The entire shredding system features multifunctional capabilities, including PLC control, touchscreen operation, remote monitoring, and data logging. It enables remote monitoring of equipment operating status and fault detection. Some high-end lithium-ion battery recycling machines can also be integrated with upstream and downstream disassembly and shredding systems to achieve intelligent management of the entire recycling process.


As the core equipment in the lithium-ion battery recycling industry chain, lithium-ion battery shredders will continue to undergo technological iterations and process innovations alongside ongoing advancements in technology. These machines are transitioning from traditional equipment to high-end, intelligent recycling systems. They have already become the foundational core equipment for the power battery recycling industry. If you are interested in purchasing a lithium-ion battery recycling machine, please feel free to contact us to receive the latest technical solutions and quotes.

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