Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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A Study on the Recycle of Carbon Material in Anode of Secondary Battery

이차전지 음극재 탄소 소재 재활용에 대한 연구

  • Han, Gyoung-Jae (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Kim, Yu-Jin (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Yoon, Seong-Jin (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Kang, Yu-Jin (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Jang, Min-Hyeok (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Jo, Hyung-Kun (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Cho, Hye-Ryeong (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Seo, Dong-Jin (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Park, Joo-Il (Department of Chemical and Biological Engineering, Hanbat National University)
  • 한경재 (한밭대학교 화학생명공학과) ;
  • 김유진 (한밭대학교 화학생명공학과) ;
  • 윤성진 (한밭대학교 화학생명공학과) ;
  • 강유진 (한밭대학교 화학생명공학과) ;
  • 장민혁 (한밭대학교 화학생명공학과) ;
  • 조형근 (한밭대학교 화학생명공학과) ;
  • 조혜령 (한밭대학교 화학생명공학과) ;
  • 서동진 (한밭대학교 화학생명공학과) ;
  • 박주일 (한밭대학교 화학생명공학과)
  • Received : 2022.10.19
  • Accepted : 2022.11.02
  • Published : 2022.12.30
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Abstract

Lithium-ion batteries have greatly expanded along with the mobile phone market, and as the electric vehicle business is activated in earnest, they will attract many people's attention even afterwards. Until now, many people have attracted attention to the recovery of valuable metals inside lithium-ion batteries, but graphite, which is mainly used as an anode material, is also worth recycling. Therefore, in order to recover graphite with high purity and valuable metals, graphite that can be used as an anode material of a secondary battery may be generated again through a regeneration process of purifying and separating graphite from a waste lithium-ion battery and recovering electrical characteristics of graphite. This paper describes the process of converting waste graphite into regenerated graphite and the environmental and economic effects of regenerated graphite.

리튬이온 배터리는 휴대폰 시장과 함께 크게 확대되었고 전기 자동차 사업이 본격적으로 활성화됨에 따라, 이후에도 많은 사람의 관심을 끌게 될 분야이다. 지금까지는 리튬이온 배터리 내부에 있는 유가금속에 대한 회수에 많은 사람이 관심을 끌고 있지만, 음극재로서 주로 활용되는 흑연 또한 재활용가치는 충분하다. 따라서 순도 높은 흑연의 회수와 유가금속의 회수를 함께 하기 위해, 폐 리튬이온 배터리로부터 흑연의 정제 및 분리, 흑연의 전기적 특성을 회복하는 재생과정을 통해 다시금 이차전지의 음극재로써 활용할 수 있는 흑연을 만들어 내는 과정을 가지게 할 것이다. 본 논문에서는 폐 흑연을 재생 흑연으로 바꾸는 과정과 재생 흑연이 가져오는 경제적 효과를 기술한다.

Keywords

Acknowledgement

본 과제(결과물)는 2022년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다(2021RIS-004)

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