전구체 공정부산물 LNO(Li2NiO2)계 양극활물질로부터 탄산리튬 및 니켈 회수연구
Recoverty of Lithium Carbonate and Nickel from Cathode Active Material LNO(Li2NiO2) of Precursor Process Byproducts
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
본 연구는 폐 리튬이온전지의 양극활물질인 LNO(Li2NiO2) 공정부산물로부터 CO2 열반응 공정을 통하여 Li 분말을 회수하였다. Li 분말을 회수하는 공정은 CO2 주입량이 300 cc/min인 분위기에서 600o C, 1 min 유지하여 Li2NiO2 상을 Li2CO3상과 NiO상으로상분리 시켰다. 이 후 회수한 시료:증류수 = 1:50 무게비로 수 침출 후 감압 여과를 통해 용액에서Li2CO3, 여과지에서 NiO 분말을 회수하였다. Ni 순도를 높이기 위해 H2 분위기에서 3시간 유지하여 NiO에서 Ni로 환원하였다. 위와 같은 공정을 통해 회수한탄산리튬 용액의 Li의 농도 2290 ppm, Li의 회수율은 92.74%를 달성하였고 Ni은 최종적으로 순도는 90.1%, 회수율 92.6%의 분말을 제조하였다.
Abstract
In this study, Li powder was recovered from the by-product of LNO (Li2NiO2) process, which is the positive electrode active material of waste lithium ion battery, through the CO2 thermal reaction process. In the process of recovering Li powder, the CO2 injection amount is 300 cc/min. The Li2NiO2 award was phase-separated into the Li2CO3 phase and the NiO phase by holding at 600o C for 1 min. After this, the collected sample:distilled water = 1:50 weight ratio, and after leaching, the solution was subjected to vacuum filtration to recover Li2CO3 from the solution, and the NiO powder was recovered. In order to increase the purity of Ni, it was maintained in H2 atmosphere for 3 hours to reduce NiO to Ni. Through the above-mentioned steps, the purity of Li was 2290 ppm and the recovery was 92.74% from the solution, and Ni was finally produced 90.1% purity, 92.6% recovery.
참고문헌 (17)
- N. Ding, "A new gel route to synthesize LiCoO2 for lithium – ion batteries", Mater. Res. Bull, 40, pp.1451~ (2005)
- 최청송, "침전법으로 제조된 전구체 성질에 의한LiCoO2의 특성에 관한 연구", Clean Technology, 12(2), pp.101~106 (2006), 한국청정기술학회
- J. Khanderi, "A single source Co", Li, Eur. J. Inorg. Chem., pp.2010, 29[DOI]
- J. H. Moon, "Recovery of Cobalt from Waste Cathode Active Material Using Organic Acid", Applied Chemistry, 16, pp.73~ (2012)
- 이철경, "페리튬이온전지로부터 양극활물질인 LiCoO2의 합성", 한국자원공학회지, 39(3), pp.157~164 (2002), 한국자원공학회
- 박상혁, "리튬이차전지 양극활물질의 암모니아 침출액에서 공침법에 의한 활물질 전구체의 합성에 대한 암모니아 농도의 영향", 자원리싸이클링, 24(6), pp.9~16 (2015), 한국자원리싸이클링학회[DOI]
- M. Contestabile, "Alaboratory-scale lithium-ion battery recycling process", J. Power Sources, 92, pp.65~69 (2001)
- 손성호, "폐리튬이온전지 NCM 양극활물질로부터 말릭산을 이용한 유가금속의 침출", 자원리싸이클링, 23(4), pp.21~29 (2014), 한국자원리싸이클링학회[DOI]
- “Lithium-Battery Market”Global Market Trends of Special Zone Technology report, "INONOPOLIS Foundatio", ~ (2018)
- P. Zhang, "Hydrometallurgical process for recovery of metal values from spent lithium-ion secondary batteries", Hydrometallurgy, 47, pp.259~271 (1998)
- M. Joulié, "Hydrometallurgical process for the recovery of high value metals from spent lithium nickel cobalt aluminum oxide based lithium-ion batteries, J", Power Sources, 247, pp.551~555 (2014)
- J. Kang, "Recovery of cobalt sulfate from spent lithium ion batteries by reductive leaching and solvent extraction with Cyanex 272", Hydrometallurgy, 100, pp.168~171 (2010)
- C. K. Lee, "Preparation of LiCoO2from spent lithium-ion batteries", J. Power Sources, 109, pp.17~21 (2002)
- L. Li, "Recovery of cobalt and lithium from spent lithium ion batteries using organic citric acid as leachant", J. Hazard Mater., 176, pp.288~293 (2010)
- X. Chen, "Hydrometallurgical process for the recovery of metal values from spent lithium-ion batteries in citric acid media", Waste Manag. Res, 32, pp.1083~1093 (2014)
- L. Sun, "Organic oxalate as leachant and precipitant for the recovery of valuable metals from spent lithium-ion batteries", Waste Manag, 32, pp.1575~1582 (2012)
- X. Zeng, "Novel approach to recover cobalt and lithium from spent lithium-ion battery using oxalic acid", J. Hazard Mater, 295, pp.112~118 (2015)