Preparation of battery-grade lithium carbonate by microbubble enhanced CO2 gas-liquid reactive crystallization

doi:10.1039/d2gc03375e

CAS OpenIR

	Preparation of battery-grade lithium carbonate by microbubble enhanced CO2 gas-liquid reactive crystallization
	Lu, Jijun 1,2,3; Tian, Menghua 1,2,3; Cao, Jianwei 1,2; Liu, Junhao 1,2,3; Guo, Jianwei 1,2,3; Sun, Yiwei 1,2,3; Pang, Sheng 1,2,3; Qian, Guoyu 1,2; Wang, Zhi 1,2,3
	2022-11-28
Source Publication	GREEN CHEMISTRY
ISSN	1463-9262
Volume	24 Issue:23 Pages:9084-9093
Abstract	Lithium carbonate (Li2CO3), as one of the most important basic lithium salts, has a high demand in the lithium ion battery industry, including the preparation of cathode materials, lithium metal, and electrolyte additives. However, the traditional preparation process of Li2CO3 is hampered by the introduction of Na+ metal impurity, and the particle size is too large to meet the requirements of battery-grade products. Here, we propose a gas-liquid reactive crystallization process for the one-step preparation of battery-grade Li2CO3 using CO2 instead of Na2CO3 as the precipitant. This strategy avoids the introduction of Na+ metal impurity and can also capture and convert CO2. Meanwhile, microbubbles were introduced into the system to enhance the mass transfer and regulate the crystallization process to efficiently prepare Li2CO3 products with the particle size meeting the requirements of the battery level. The kinetic parameters and crystallization mechanism of battery-grade Li2CO3 prepared by gas-liquid reactive crystallization were quantitatively analyzed through in situ tests and calculations. The feasibility of using the prepared battery-grade Li2CO3 as a raw material to synthesize an LiFePO4 cathode for lithium ion batteries was verified. The strategy provides a new route for the controllable preparation of battery-grade Li2CO3 and the conversion of CO2.
DOI	10.1039/d2gc03375e
Language	英语
WOS Keyword	PRECIPITATION ; LIFEPO4
Funding Project	Key Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; [ZDRW_CN_2020-1] ; [51934006] ; [52074255]
WOS Research Area	Chemistry ; Science & Technology - Other Topics
WOS Subject	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology
Funding Organization	Key Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS ID	WOS:000883080300001
Publisher	ROYAL SOC CHEMISTRY
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/55649
Collection	中国科学院过程工程研究所
Corresponding Author	Qian, Guoyu; Wang, Zhi
Affiliation	1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Lu, Jijun,Tian, Menghua,Cao, Jianwei,et al. Preparation of battery-grade lithium carbonate by microbubble enhanced CO2 gas-liquid reactive crystallization[J]. GREEN CHEMISTRY,2022,24(23):9084-9093.
APA	Lu, Jijun.,Tian, Menghua.,Cao, Jianwei.,Liu, Junhao.,Guo, Jianwei.,...&Wang, Zhi.(2022).Preparation of battery-grade lithium carbonate by microbubble enhanced CO2 gas-liquid reactive crystallization.GREEN CHEMISTRY,24(23),9084-9093.
MLA	Lu, Jijun,et al."Preparation of battery-grade lithium carbonate by microbubble enhanced CO2 gas-liquid reactive crystallization".GREEN CHEMISTRY 24.23(2022):9084-9093.

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