한국수소및신에너지학회논문집 (Journal of Hydrogen and New Energy)

  • 제35권3호
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  • Pages.336-344
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  • 2024
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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블랙 파우더 침출용액을 이용한 재활용 리튬이온전지의 양극 활물질 공침법에 대한 연구

A Study on Co-precipitation of Positive Electrode Active Material for Recycled Lithium-ion Batteries Using Black Powder Leaching Solution

  • 이재근 (국립목포대학교 전기공학과) ;
  • 이재경 ((주)에이비알) ;
  • 권성기 (국립목포대학교 전기공학과) ;
  • 박계춘 (국립목포대학교 전기공학과)
  • JAEGEUN LEE (Department of Electrical Engineering, Mokpo National University) ;
  • JAEKYUNG LEE (ABR) ;
  • SUNGGI KWON (Department of Electrical Engineering, Mokpo National University) ;
  • GYECHOON PARK (Department of Electrical Engineering, Mokpo National University)
  • 투고 : 2024.05.02
  • 심사 : 2024.06.17
  • 발행 : 2024.06.30
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초록

In this study, a Ni0.9Co0.05Mn0.05(OH)2 precursor used as an anode active material using a black powder leaching solution of a recycled lithium ion battery was prepared through coprecipitation synthesis with co-precipitation time, NH4OH concentration, pH, and stirring time as variables. The characteristics of the prepared powder were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), particle size analysis (PSA), and inductively coupled plasma optical emission spectroscopy (ICP-OES). It was confirmed that the single crystal thickness of the LiNi1-x-yCoxMnyO2 (NCM) precursor changes depending on the NH4OH concentration and reaction pH value, and thicker single crystals are formed at 2 M NH4OH compared to 1 M and at pH 10.8-11.8 compared to pH 11.8-12.0. NCM precursor particles increased with coprecipitation time, and it was confirmed that the 72 hours NCM precursor had the largest particle size. Through ICP-OES analysis, it was confirmed that the NCM precursor was synthesized with the target composition of Ni2+:Co2+:Mn2+=90:5:5.

키워드

과제정보

본 결과물은 2024년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력 기반 지역혁신사업의 결과입니다(2021RIS-002).

참고문헌

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