Co-grinding LiCoO2 with PVC and water leaching of metal chlorides formed in ground product

Shu Saeki, Jaeryeong Lee, Kibu Chiyo, Fumio Saito

Research output: Contribution to journalArticlepeer-review

96 Citations (Scopus)


LiCo2 was subjected to co-grinding with PVC using a planetary ball mill to form Co- and Li-chlorides mechanochemically in the product. Subsequently, the ground product was dispersed in water to extract the chlorides. The grinding facilitates mechanochemical (MC) reaction, and the extraction yields of both Co and Li are improved as the grinding progresses. The 30-min grinding enables us to reach over 90% for Co and nearly 100% for Li. Accordingly, about 90% of chlorine in the PVC sample has been transformed into the inorganic chlorides by the time. This would be an effective method for recovering Co and Li from lithium-ion secondary (LIS) battery wastes.

Original languageEnglish
JournalInternational Journal of Mineral Processing
Issue numberSUPPL.
Publication statusPublished - 2004 Dec 10


  • Dechlorination
  • Extraction
  • Grinding
  • LiCoO
  • Mechanochemistry
  • PVC
  • Recycle
  • Water leaching

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology


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