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논문 기본 정보

자료유형
학술저널
저자정보
Sung-hwan Kim (Korea Institute of Machinery & Materials) Hongsik Yoon (Korea Institute of Machinery & Materials) Taijin Min (Korea Institute of Machinery & Materials) Bangwoo Han (Korea Institute of Machinery & Materials) Sungil Lim (Korea Institute of Machinery & Materials) Joonwoo Park (ER)
저널정보
대한환경공학회 Environmental Engineering Research Environmental Engineering Research 제29권 제3호
발행연도
2024.6
수록면
116 - 128 (13page)

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초록· 키워드

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The market for lithium-ion batteries (LiBs) is growing rapidly, the demand for lithium (Li) in the form of lithium carbonate (Li₂CO₃), which is the most common lithium mineralization form, is therefore also increasing significantly. Li is conventionally extracted as Li₂CO₃ using sodium carbonate (Na₂CO₃) to precipitate Li ions in an aqueous Li solution. However, Na₂CO₃ can also be replaced by CO₂, which highlights the potential of using CO₂ as a sustainable and economically viable alternative. This review focuses on technologies that utilize CO₂ for Li₂CO₂ precipitation. First, the use of CO₂ gas and Na₂CO₃ as carbonate sources are compared, and the need to consider important operating conditions with CO₂ bubbling are then presented. Attempts made to increase the specific surface area of the reaction surface to enhance the utilization of CO₂ gas and to produce micro-sized Li₂CO₃ powders are then reported, and the limitations associated with CO₂gas utilization are discussed. Although CO₂ precipitation has limitations in terms of efficiency, scalability, and the fine-tuning of reaction conditions, this review shows that if CO₂ precipitation technology is further developed, its use could be key to extracting and recycling next-generation Li.

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ABSTRACT
1. Introduction
2. Li Extraction and Recycling Methods
3. Techniques Used in CO₂-based Li₂CO₃ Precipitation
4. Limitations Associated with Precipitating Li₂CO₃ with CO₂
5. Conclusions
References

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