Negative Electrode Sheet Recycling Graphite Regeneration Equipment

Against the backdrop of the “Dual Carbon” goals, Henan Jufeng Technology has addressed the industry’s longstanding pain points—namely, the “high‑temperature carbonization, structural damage, and difficulty in direct reuse” of spent lithium‑ion battery anode graphite powder—by abandoning low‑end pulverization processes. Under the leadership of Zhang Haitao, a member of Academician Zhang Suojiang’s team and doctoral supervisor at the Institute of Process Engineering, Chinese Academy of Sciences, Jufeng has joined forces with this team to develop advanced graphite regeneration technology.

Negative Electrode Graphite Repair and Regeneration

Jufeng Company, in collaboration with the Institute of Process Engineering, Chinese Academy of Sciences, has jointly developed a repair and regeneration technology for negative electrode sheets sourced from production scrap and batteries removed before electrolyte filling (unformed batteries). This technology achieves regeneration through a four-step process: anaerobic pyrolysis -> secondary graphite, acid washing purification -> primary graphite, carbon coating -> regenerated graphite, and microwave repair -> high-performance graphite. The performance of the graphite repaired and regenerated via this technology is close to, or even surpasses, that of virgin graphite.