Selective extraction of lithium (Li) and preparation of batterygrade lithium carbonate (Li2CO3) from spent Li-ion batteries in nitratesystem

Research output: Contribution to journalArticleScientificpeer-review

Standard

Harvard

APA

Vancouver

Author

Bibtex - Download

@article{1177eb34526b4576bf962266d673a378,
title = "Selective extraction of lithium (Li) and preparation of batterygrade lithium carbonate (Li2CO3) from spent Li-ion batteries in nitratesystem",
abstract = "In this study, a novel method that allows selective extraction of lithium and production of battery grade Li 2CO 3 is introduced, which includes nitration, selective roasting, water leaching and Li 2CO 3 preparation. By this method, metallic components in Li-ion battery waste are firstly transformed into corresponding nitrates, and then decomposed into insoluble oxides during roasting except for lithium nitrate, which is ready to be extracted by water leaching. Under the optimum conditions of nitration (70 °C, 5 h, acid-to-scrap ratio of 30 mmol/g), selective roasting (250 °C, 1 h) and 4-stage cross-current water leaching (25 °C, liquid-to-solid ratio of 2:1), lithium extraction up to 93{\%} is achieved, whereas extraction of other metals like cobalt, nickel, copper etc. are <0.1{\%}. The obtained lithium-rich solution (34.1 g/L lithium) is then subjected to a carbonation step at 95 °C for 30 min to form the desired Li 2CO 3. The purity of Li 2CO 3 produced is up to 99.95{\%}, a level above the minimum standards required for battery grade Li 2CO 3. Application of this new process could significantly improve lithium recovery from waste Li-ion batteries, as the overall recovery of 90{\%} for lithium achieved is much higher than previously reported lithium recovery of 60–80{\%} from waste Li-ion batteries.",
keywords = "Secondary resources, Selective extraction of lithium, Waste recycling, High purity Li2CO3, High purity Li CO",
author = "Chao Peng and Fupeng Liu and Wilson, {Benjamin P.} and Mari Lundstr{\"o}m and Zulin Wang",
year = "2019",
month = "3",
day = "1",
doi = "10.1016/j.jpowsour.2019.01.072",
language = "English",
volume = "415",
pages = "179--188",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier Science B.V.",

}

RIS - Download

TY - JOUR

T1 - Selective extraction of lithium (Li) and preparation of batterygrade lithium carbonate (Li2CO3) from spent Li-ion batteries in nitratesystem

AU - Peng, Chao

AU - Liu, Fupeng

AU - Wilson, Benjamin P.

AU - Lundström, Mari

AU - Wang, Zulin

PY - 2019/3/1

Y1 - 2019/3/1

N2 - In this study, a novel method that allows selective extraction of lithium and production of battery grade Li 2CO 3 is introduced, which includes nitration, selective roasting, water leaching and Li 2CO 3 preparation. By this method, metallic components in Li-ion battery waste are firstly transformed into corresponding nitrates, and then decomposed into insoluble oxides during roasting except for lithium nitrate, which is ready to be extracted by water leaching. Under the optimum conditions of nitration (70 °C, 5 h, acid-to-scrap ratio of 30 mmol/g), selective roasting (250 °C, 1 h) and 4-stage cross-current water leaching (25 °C, liquid-to-solid ratio of 2:1), lithium extraction up to 93% is achieved, whereas extraction of other metals like cobalt, nickel, copper etc. are <0.1%. The obtained lithium-rich solution (34.1 g/L lithium) is then subjected to a carbonation step at 95 °C for 30 min to form the desired Li 2CO 3. The purity of Li 2CO 3 produced is up to 99.95%, a level above the minimum standards required for battery grade Li 2CO 3. Application of this new process could significantly improve lithium recovery from waste Li-ion batteries, as the overall recovery of 90% for lithium achieved is much higher than previously reported lithium recovery of 60–80% from waste Li-ion batteries.

AB - In this study, a novel method that allows selective extraction of lithium and production of battery grade Li 2CO 3 is introduced, which includes nitration, selective roasting, water leaching and Li 2CO 3 preparation. By this method, metallic components in Li-ion battery waste are firstly transformed into corresponding nitrates, and then decomposed into insoluble oxides during roasting except for lithium nitrate, which is ready to be extracted by water leaching. Under the optimum conditions of nitration (70 °C, 5 h, acid-to-scrap ratio of 30 mmol/g), selective roasting (250 °C, 1 h) and 4-stage cross-current water leaching (25 °C, liquid-to-solid ratio of 2:1), lithium extraction up to 93% is achieved, whereas extraction of other metals like cobalt, nickel, copper etc. are <0.1%. The obtained lithium-rich solution (34.1 g/L lithium) is then subjected to a carbonation step at 95 °C for 30 min to form the desired Li 2CO 3. The purity of Li 2CO 3 produced is up to 99.95%, a level above the minimum standards required for battery grade Li 2CO 3. Application of this new process could significantly improve lithium recovery from waste Li-ion batteries, as the overall recovery of 90% for lithium achieved is much higher than previously reported lithium recovery of 60–80% from waste Li-ion batteries.

KW - Secondary resources

KW - Selective extraction of lithium

KW - Waste recycling

KW - High purity Li2CO3

KW - High purity Li CO

UR - http://www.scopus.com/inward/record.url?scp=85060671877&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2019.01.072

DO - 10.1016/j.jpowsour.2019.01.072

M3 - Article

VL - 415

SP - 179

EP - 188

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -

ID: 31437502