Lithium Battery Pyrolysis Recycling Technology

Research on the recycling of spent lithium batteries has primarily focused on recovering high-value metals such as cobalt and lithium from the cathode. SUNYGROUP’s lithium battery recycling lines are capable of processing various battery types, including pouch cells, automotive batteries, mobile phone batteries, hard-cased batteries, and cylindrical cells. The resulting products include black mass, aluminum, copper, plastics, iron casings, and separator materials.

The recycling equipment employs physical crushing, high-temperature pyrolysis, and multi-stage sorting and screening technologies. By separating and recovering metallic elements—such as copper, aluminum, and black mass—from the batteries, the technology enables resource recycling.

At the core of this pyrolysis technology is an oxygen-free, inert environment. Through a medium-to-low temperature gradient heating process, organic components like electrolytes and separators are safely decomposed, while cathode and anode materials, copper, aluminum, and other constituents are efficiently separated. Recent technological breakthroughs have eliminated the need for traditional pre-discharge steps, boosting processing efficiency by over 40% and achieving recovery rates exceeding 95% for strategic metals such as lithium, nickel, and cobalt.

The widespread adoption of this pyrolysis recycling technology not only addresses the environmental pollution caused by spent batteries and safeguards strategic metal resources but also drives the new energy industry toward a complete "production–usage–recycling–regeneration" closed-loop system. Looking ahead, as technologies such as low-temperature pyrolysis and intelligent temperature control continue to improve, lithium battery pyrolysis recycling is poised for significant growth and broader application.

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