Research on Leaching Lithium and Manganese from Waste Lithium Manganate Battery Cathode Materials with Deep Eutectic Solvent

WANG Wei; YANG Xingchen; LIU Lin; LIU Hongzhao; WANG Hongliang; CAO Yaohua

doi:10.13779/j.cnki.issn1001-0076.2023.01.013

2023 Vol. 43, No. 1

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(1): 128-131

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WANG Wei, YANG Xingchen, LIU Lin, LIU Hongzhao, WANG Hongliang, CAO Yaohua. Research on Leaching Lithium and Manganese from Waste Lithium Manganate Battery Cathode Materials with Deep Eutectic Solvent[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 128-131. doi: 10.13779/j.cnki.issn1001-0076.2023.01.013

Citation:

WANG Wei, YANG Xingchen, LIU Lin, LIU Hongzhao, WANG Hongliang, CAO Yaohua. Research on Leaching Lithium and Manganese from Waste Lithium Manganate Battery Cathode Materials with Deep Eutectic Solvent[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 128-131. doi: 10.13779/j.cnki.issn1001-0076.2023.01.013

Research on Leaching Lithium and Manganese from Waste Lithium Manganate Battery Cathode Materials with Deep Eutectic Solvent

1.
Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Zhengzhou 450006, China
2.
China National Engineering Research Center for Utilization of Industrial Minerals, Zhengzhou 450006, China
3.
Key Laboratory for Polymetallic Ores’ Evaluation and Utilization, MNR, Zhengzhou 450006, China
4.
Comprehensive Utilization Key Laboratory of Gold Resource in Henan Province, Zhengzhou 450006, China
5.
Nantong Cellulose Fibers CO LTD, Nantong 226008, China

Received Date: 16 November 2022

Publish Date: 15 February 2023

Abstract

Abstract

As a green solvent, the deep eutectic solvent has attracted increasing attention in the field of recycling valuable components of waste lithium batteries. In this paper, the waste lithium manganate battery cathode powder was taken as the object for lithium and manganese leaching using deep eutectic solvent of guanidine hydrochloride and lactic acid. The effects of leaching temperature, leaching liquid solid ratio and leaching time on the leaching rate of lithium and manganese were investigated. The results showed that the appropriate dissolution conditions were as follows: using deep eutectic solvent with the mole ratio of guanidine hydrochloride to lactic acid 1∶2, the volume mass ratio of leaching solution to solid was 10 mL/g, the dissolution temperature was 70 ℃, and the leaching time was 1 h. Under the appropriate dissolution conditions, the leaching rate of lithium and manganese in lithium manganate cathode powder reached to 99.27% and 99.20% respectively.
- lithium manganate battery /
- deep eutectic solvent /
- leaching /
- lithium /
- manganate

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References

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