Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Overview on hydrometallurgy processes for effective use of water resource in spent lithium-ion batteries recycling

효율적 수자원 활용을 위한 폐리튬이온배터리 재활용 습식 제련 기술 연구 동향

  • Dayoung Ahn (Department of Environmental Engineering and Institute of Energy/Environment Convergence Technologies, Kongju National University) ;
  • Seonghwan Kim (Department of Environmental Engineering and Institute of Energy/Environment Convergence Technologies, Kongju National University) ;
  • Choonsoo Kim (Department of Environmental Engineering and Institute of Energy/Environment Convergence Technologies, Kongju National University)
  • 안다영 (공주대학교 환경공학과 및 에너지환경융합연구소) ;
  • 김성환 (공주대학교 환경공학과 및 에너지환경융합연구소) ;
  • 김춘수 (공주대학교 환경공학과 및 에너지환경융합연구소)
  • Received : 2023.03.03
  • Accepted : 2023.03.31
  • Published : 2023.04.15
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Abstract

With a rapid expansion in electric vehicles, a huge amount of the spent Li-ion batteries (LIBs) could be discharged in near future. And thus, the proper handling of the spent LIBs is essential to sustainable development in the industry of electrical vehicles. Among various approaches such as pyrometallurgy, hydrometallurgy, and direct recycling, the hydrometallurgical manner has gained interest in recycling the spent LIBs due to its high effectiveness in recycling raw materials (e.g., lithium, nickel, cobalt, and manganese). However, the hydrometallurgical process not only requires the use of large amounts of acids and water resources but also produces toxic gases and wastewater leading to environmental and economic problems, considering potential economic and environmental problems. Thus, this review aims to provide an overview of conventional and state-of-the-art hydrometallurgical processes to recover valuable metals from spent LIBs. First, we briefly introduce the basic principle and materials of LIBs. Then, we briefly introduce the operations and pros-and cons- of hydrometallurgical processes. Finally, this review proposes future research directions in hydrometallurgy, and its potential opportunities in the fundamental and practical challenges regarding its deployment going forward.

Keywords

Acknowledgement

이 논문은 2021년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업입니다(NRF-2021R1I1A3040360). 이 논문은 환경부의 폐자원에너지화 전문인력 양성사업으로 지원되었습니다.

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