Selectively leaching of valuable matals from spent Lithium-ion battery by ammonium sulfate

Nannan Liu; Yongming Chen; Cong Chang; Lulu Guo

Selectively leaching of valuable matals from spent Lithium-ion battery by ammonium sulfate

Nannan Liu
, Yongming Chen
, Cong Chang
, Lulu Guo

Central South University

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

In this study, the leaching behavior of the cathode active materials separated from various commercial LIBs in mobile phone was investigated using ammonium leaching agent based on ammonia sulfate and ammonium sulfite.The process parameters foe the leaching of the cathode active powder were optimized by varying the leaching temperature, addition of reductant, concentration of leachant, S:L ratio and time. Results indicate that the optimized leaching rate of Ni, Co, Li and Mn is 96.49%, 88.42%,97.41% and 4.27% respectively when the material was leached in 3M (NH₄)₂SO₄, 136g (NH₄)₂SO₃(1.5 times of Co molar mass in the input cathode materials) at 200 degree Celsius, and S:L ratio of 100 g/L for 180 min. It was found that Mn could be reduced into the solution from Mn⁴⁺ to Mn²⁺ with appropriate addition of reductant. And, the Mn²⁺ in the solution would be precipitated out in the forms of (NH₄)₂Mn(SO₃)₂·H₂O and (NH₄)Mn(SO₄)₂·6H₂O with further increasing the addition of reductant. As a result, this ammonium leaching process could provide an alternative way for the selectively leaching of value metals from spent Lithium-ion battery in industry.

Original language	English
State	Published - 2017
Externally published	Yes
Event	14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017 - Sapporo, Hokkaido, Japan Duration: 26 Sep 2017 → 29 Sep 2017

Conference

Conference	14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017
Country/Territory	Japan
City	Sapporo, Hokkaido
Period	26/09/17 → 29/09/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Ammonium leaching
Cathode active material
Recycling
Spent Li-ion battery

Cite this

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title = "Selectively leaching of valuable matals from spent Lithium-ion battery by ammonium sulfate",

abstract = "In this study, the leaching behavior of the cathode active materials separated from various commercial LIBs in mobile phone was investigated using ammonium leaching agent based on ammonia sulfate and ammonium sulfite.The process parameters foe the leaching of the cathode active powder were optimized by varying the leaching temperature, addition of reductant, concentration of leachant, S:L ratio and time. Results indicate that the optimized leaching rate of Ni, Co, Li and Mn is 96.49\%, 88.42\%,97.41\% and 4.27\% respectively when the material was leached in 3M (NH4)2SO4, 136g (NH4)2SO3(1.5 times of Co molar mass in the input cathode materials) at 200 degree Celsius, and S:L ratio of 100 g/L for 180 min. It was found that Mn could be reduced into the solution from Mn4+ to Mn2+ with appropriate addition of reductant. And, the Mn2+ in the solution would be precipitated out in the forms of (NH4)2Mn(SO3)2·H2O and (NH4)Mn(SO4)2·6H2O with further increasing the addition of reductant. As a result, this ammonium leaching process could provide an alternative way for the selectively leaching of value metals from spent Lithium-ion battery in industry.",

keywords = "Ammonium leaching, Cathode active material, Recycling, Spent Li-ion battery",

author = "Nannan Liu and Yongming Chen and Cong Chang and Lulu Guo",

note = "Publisher Copyright: {\textcopyright}The Mining and Materials Processing Institute of Japan; 14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017 ; Conference date: 26-09-2017 Through 29-09-2017",

year = "2017",

language = "英语",

}

TY - CONF

T1 - Selectively leaching of valuable matals from spent Lithium-ion battery by ammonium sulfate

AU - Liu, Nannan

AU - Chen, Yongming

AU - Chang, Cong

AU - Guo, Lulu

PY - 2017

Y1 - 2017

N2 - In this study, the leaching behavior of the cathode active materials separated from various commercial LIBs in mobile phone was investigated using ammonium leaching agent based on ammonia sulfate and ammonium sulfite.The process parameters foe the leaching of the cathode active powder were optimized by varying the leaching temperature, addition of reductant, concentration of leachant, S:L ratio and time. Results indicate that the optimized leaching rate of Ni, Co, Li and Mn is 96.49%, 88.42%,97.41% and 4.27% respectively when the material was leached in 3M (NH4)2SO4, 136g (NH4)2SO3(1.5 times of Co molar mass in the input cathode materials) at 200 degree Celsius, and S:L ratio of 100 g/L for 180 min. It was found that Mn could be reduced into the solution from Mn4+ to Mn2+ with appropriate addition of reductant. And, the Mn2+ in the solution would be precipitated out in the forms of (NH4)2Mn(SO3)2·H2O and (NH4)Mn(SO4)2·6H2O with further increasing the addition of reductant. As a result, this ammonium leaching process could provide an alternative way for the selectively leaching of value metals from spent Lithium-ion battery in industry.

AB - In this study, the leaching behavior of the cathode active materials separated from various commercial LIBs in mobile phone was investigated using ammonium leaching agent based on ammonia sulfate and ammonium sulfite.The process parameters foe the leaching of the cathode active powder were optimized by varying the leaching temperature, addition of reductant, concentration of leachant, S:L ratio and time. Results indicate that the optimized leaching rate of Ni, Co, Li and Mn is 96.49%, 88.42%,97.41% and 4.27% respectively when the material was leached in 3M (NH4)2SO4, 136g (NH4)2SO3(1.5 times of Co molar mass in the input cathode materials) at 200 degree Celsius, and S:L ratio of 100 g/L for 180 min. It was found that Mn could be reduced into the solution from Mn4+ to Mn2+ with appropriate addition of reductant. And, the Mn2+ in the solution would be precipitated out in the forms of (NH4)2Mn(SO3)2·H2O and (NH4)Mn(SO4)2·6H2O with further increasing the addition of reductant. As a result, this ammonium leaching process could provide an alternative way for the selectively leaching of value metals from spent Lithium-ion battery in industry.

KW - Ammonium leaching

KW - Cathode active material

KW - Recycling

KW - Spent Li-ion battery

UR - https://www.scopus.com/pages/publications/85065971830

M3 - 论文

AN - SCOPUS:85065971830

T2 - 14th International Symposium on East Asian Resources Recycling Technology, EARTH 2017

Y2 - 26 September 2017 through 29 September 2017

ER -

Selectively leaching of valuable matals from spent Lithium-ion battery by ammonium sulfate

Abstract

Conference

UN SDGs

Keywords

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