In this chapter, an overview of different types of batteries and the strategies for their recycling is given. The metal values from batteries and the waste generated so far and in the near future at the regional and global level are summarized. The advantage of resource recycling through the recovery of valuable metal ions is discussed. The various methods involved, such as hydrometallurgical, pyrometallurgical, bio-hydrometallurgical, etc., and their suitability to treat particular batteries are summarized. The concept of urban mining for sustainable development and circular economy is introduced as relevant to methods and technologies for recycling batteries. The scope and growing importance of Li-ion batteries (LIBs) in portable electronic devices to electric motor vehicles (EMV) is illustrated. More focus is given to recovering the Li and other metals from the spent LIBs considering the limited natural availability and environmental regulations. The dissolution of cathode-active materials using different chemical reagents involving redox, ligand-promoted, and other processes with their sequential development steps is given. The general trend over the previous decade is discussed, as well as our findings on recovering metal values from wasted LIBs. The recent reports on the large-scale treatment of batteries through the environmentally benign hydrometallurgical process are discussed systematically. A comparison is drawn on the various process and the advantages are highlighted. Also, the applicability of these methods and technologies for recycling other e-waste is mentioned, appropriately. In summary, this chapter is aimed to provide a consolidated view and approach to the recycling of batteries.

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Methods and Technologies for Recycling Li-Ion Batteries

  • Dinesh Patil,
  • Jayappa Manjanna,
  • Vinay Gangaraju,
  • Dinesh Rangappa

摘要

In this chapter, an overview of different types of batteries and the strategies for their recycling is given. The metal values from batteries and the waste generated so far and in the near future at the regional and global level are summarized. The advantage of resource recycling through the recovery of valuable metal ions is discussed. The various methods involved, such as hydrometallurgical, pyrometallurgical, bio-hydrometallurgical, etc., and their suitability to treat particular batteries are summarized. The concept of urban mining for sustainable development and circular economy is introduced as relevant to methods and technologies for recycling batteries. The scope and growing importance of Li-ion batteries (LIBs) in portable electronic devices to electric motor vehicles (EMV) is illustrated. More focus is given to recovering the Li and other metals from the spent LIBs considering the limited natural availability and environmental regulations. The dissolution of cathode-active materials using different chemical reagents involving redox, ligand-promoted, and other processes with their sequential development steps is given. The general trend over the previous decade is discussed, as well as our findings on recovering metal values from wasted LIBs. The recent reports on the large-scale treatment of batteries through the environmentally benign hydrometallurgical process are discussed systematically. A comparison is drawn on the various process and the advantages are highlighted. Also, the applicability of these methods and technologies for recycling other e-waste is mentioned, appropriately. In summary, this chapter is aimed to provide a consolidated view and approach to the recycling of batteries.