Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Research on recycling technology for spent cathode materials of lithium-ion batteries using solid-state synthesis

고상법을 활용한 리튬이차전지 폐양극활물질 재활용 기술 연구

  • Donghun Kang (Department of Metallurgical Engineering, Pukyong National University) ;
  • Joowon Im (Department of Metallurgical Engineering, Pukyong National University) ;
  • Minseong Ko (Department of Metallurgical Engineering, Pukyong National University)
  • 강동훈 (부경대학교 금속공학전공) ;
  • 임주원 (부경대학교 금속공학전공) ;
  • 고민성 (부경대학교 금속공학전공)
  • Received : 2023.07.20
  • Accepted : 2023.08.09
  • Published : 2023.08.31
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Abstract

As the demand for lithium-ion batteries, a key power source in electric vehicles and energy storage systems, continues to increase for achieving global carbon neutrality, there is a growing concern about the environmental impact of disposing of spent batteries. Extensive research is underway to develop efficient recycling methods. While hydrometallurgy and pyrometallurgy methods are commonly used to recover valuable metals from spent cathode materials, they have drawbacks including hazardous waste and complex processes. Hence, alternative recycling methods that are environmentally friendly are being explored. However, recycling spent cathode materials still remains complex and energy-intensive. This study focuses on a novel approach called solid-state synthesis, which aims at regenerating the performance of spent cathode materials. The method offers a simpler process and reduces energy consumption. Optimal heat treatment conditions were identified based on experimental results, contributing to the development of sustainable recycling technologies for lithium-ion batteries.

Keywords

Acknowledgement

이 논문은 부경대학교 자율창의학술연구비(2021년)에 의하여 연구되었음.

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