Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl<sub>2</sub> melt

ZHANG Yuanjing; LIU Zhaoting; ZHU Shigui; LU Guimin

doi:10.13264/j.cnki.ysjskx.2023.03.003

Volume 14 Issue 3

Jun. 2023

Turn off MathJax

Article Contents

Abstract

References

Nonferrous Metals Science and Engineering > 2023 > 14(3): 311-317. > DOI: 10.13264/j.cnki.ysjskx.2023.03.003

ZHANG Yuanjing, LIU Zhaoting, ZHU Shigui, LU Guimin. Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl₂ melt[J]. Nonferrous Metals Science and Engineering, 2023, 14(3): 311-317. DOI: 10.13264/j.cnki.ysjskx.2023.03.003

Citation:

PDF (1026 KB)

Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl₂ melt

ZHANG Yuanjing^{1, 2},
LIU Zhaoting^{1, 2},
ZHU Shigui³,
LU Guimin^{1, 2, ,}

1.
National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai 200237, China
2.
Joint International Laboratory for Potassium and Lithium Strategic Resources, Shanghai 200237, China
3.
Fengxin Ganfeng Lithium Industry Co., Ltd., Yichun 336000, Jiangxi, China

More Information

Received Date: May 25, 2022
Revised Date: June 13, 2022
Available Online: June 30, 2023

Graphical Abstract

Abstract

Abstract

Li-Mg alloys, as cathode materials for lithium batteries, have broad application prospects in the field of new energy, and the preparation of Li-Mg alloys by molten salt electrolysis has great advantages. The electrochemical behavior of Mg²⁺ on a tungsten electrode in LiCl-KCl-MgCl₂ melt and the Li-Mg co-deposition process were studied by a three-electrode system, respectively. The effect of MgCl₂ concentration on electrolytic co-deposition of Li-Mg was also investigated. The experimental results of square wave voltammetry and timing current method show that the one-step two electrons reduction of Mg²⁺ to metallic Mg on the tungsten electrode is an instantaneous nucleation process, which is not affected by temperature. The results of the timing potentiometric experiment show that with the increasing concentration of MgCl₂, the cathodic current density required for the electrolytic co-deposition of Li-Mg from LiCl-KCl-MgCl₂ melt is gradually increased. When the MgCl₂ concentration in the LiCl-KCl-MgCl₂ melt is 5%, the minimum cathodic current density to achieve Li-Mg co-deposition is 0.287 A/cm². The galvanostatic electrolysis results show that when the MgCl₂ concentration is less than or equal to 5%, the metal Mg content in the Li-Mg product increases with MgCl₂ concentration in the melt. When the MgCl₂ concentration reaches 10%, electrolysis only obtains metal Mg.
- molten salt electrolysis,
- Li-Mg co-deposition,
- electrochemical,
- MgCl₂ concentration

FullText(HTML)

References (22)

References

[1]	KRAUSKOPF T, MOGWITZ B, ROSENBACH C, et al. Diffusion limitation of lithium metal and Li-Mg alloy anodes on LLZO type solid electrolytes as a function of temperature and pressure[J]. Advanced Energy Materials, 2019, 9(44): 1902568. doi: 10.1002/aenm.201902568
[2]	YANG C P, XIE H, PING W W, et al. An electron/ion dual-conductive alloy framework for high-rate and high-capacity solid-state lithium-metal batteries[J]. Advanced Materials, 2019, 31(3): 1804815. doi: 10.1002/adma.201804815
[3]	李晓琳, 杜洋, 涂继国, 等. NaCl-KCl熔盐中TiB₂阳极溶解和电化学还原行为研究[J]. 江西冶金, 2021, 41(1): 1-5. https://www.cnki.com.cn/Article/CJFDTOTAL-JXYE202101001.htm
[4]	KONG L L, WANG L, NI Z C, et al. Lithium-magnesium alloy as a stable anode for lithium-sulfur battery[J]. Advanced Functional Materials, 2019, 29(13): 1808756. doi: 10.1002/adfm.201808756
[5]	OBROVAC M N, CHEVRIER V L. Alloy negative electrodes for Li-ion batteries[J]. Chemical Reviews, 2014, 114(23): 11444-11502. doi: 10.1021/cr500207g
[6]	CHENG X, ZHANG R, ZHAO C, et al. Toward safe lithium metal anode in rechargeable batteries: a review[J]. Chemical Reviews, 2017, 117(15): 10403-10473. doi: 10.1021/acs.chemrev.7b00115
[7]	ZHAO M, BROUWER J C, SLOOF W G, et al. Surface segregation of ternary alloys: effect of the interaction between solute elements[J]. Advanced Materials Interfaces, 2020, 7(6): 1901784. doi: 10.1002/admi.201901784
[8]	SUI S, TAN H, CHEN J, et al. The influence of laves phases on the room temperature tensile properties of inconel 718 fabricated by powder feeding laser additive manufacturing[J]. Acta Materialia, 2019, 164: 413-427. doi: 10.1016/j.actamat.2018.10.032
[9]	ZHANG F, SHEN J, YAN X, et al. Homogenization heat treatment of 2099 Al-Li alloy[J]. Rare Metals, 2014, 33(1): 28-36. doi: 10.1007/s12598-013-0099-9
[10]	MOHAMEDI M, KAWAGUCHI N, SATO Y, et al. Electrochemical study of the mechanism of formation of the surface alloy of aluminum-niobium in LiCl-KCl eutectic melt[J]. Journal of Alloys and Compounds, 1999, 287(1/2): 91-97.
[11]	QIAO H, NOHIRA T, ITO Y. Electrochemical formation of Pd-La alloy films in a LiF-NaF-KF-LaF₃ melt[J]. Journal of Alloys and Compounds, 2003, 359(1/2): 230-235.
[12]	YASUDA K, KONDO K, NOHIRA T, et al. Electrochemical pormation of Pr-Ni alloys in LiF-CaF₂-PrF₃ and NaCl-KCl-PrCl₃ melts[J]. Journal of the Electrochemical Society, 2014, 161(7): D3097-D3104. doi: 10.1149/2.012407jes
[13]	康佳, 闫奇操, 于兵, 等. LaCl₃-KCl熔盐体系物化性质研究[J]. 有色金属科学与工程, 2022, 13(3): 145-151. doi: 10.13264/j.cnki.ysjskx.2022.03.018
[14]	杨凤丽, 王浩然, 杨少华, 等. LiF-SrF₂-SrO熔盐体系中Sr²⁺电化学行为的研究[J]. 有色金属科学与工程, 2016, 7(5): 33-36, 66. doi: 10.13264/j.cnki.ysjskx.2016.05.006
[15]	杨少华, 林明, 刘增威, 等. LiF-CaF₂-BaF₂-ZrO₂熔盐中Zr⁴⁺在钨电极上的电化学还原机理[J]. 有色金属科学与工程, 2017, 8(5): 70-75. doi: 10.13264/j.cnki.ysjskx.2017.05.010
[16]	LIU Y L, YUAN L Y, YE G A, et al. Electrochemical extraction of samarium from LiCl-KCl melt by forming Sm-Zn alloys[J]. Electrochimica Acta, 2014, 120: 369-378. doi: 10.1016/j.electacta.2013.12.081
[17]	田亚斌, 董泉, 叶昌美, 等. NaCl-KCl-MgCl₂熔盐Mg²⁺在钨电极上的电化学还原机理[J]. 有色金属科学与工程, 2019, 10(2): 13-18. doi: 10.13264/j.cnki.ysjskx.2019.02.003
[18]	LIU Z T, LU G M, YU J G. Electrochemical behavior of magnesium ions in chloride melt[J]. Ionics, 2019, 25(6): 2719-2727.
[19]	YONG D Y, ZHANG M L, HAN W, et al. Electrochemical formation of Mg-Li alloys at solid magnesium electrode from LiCl-KCl melts[J]. Electrochimica Acta, 2008, 53(8): 3323-3328.
[20]	TANG H, YAN Y D, ZHANG M L, et al. Electrochemistry of MgCl₂ in LiCl-KCl eutectic melts[J]. Acta Physico-Chimica Sinica, 2013, 29(8): 1698-1704.
[21]	YONG D Y, ZHANG M L, XUE Y, et al. Study on the preparation of Mg-Li-Zn alloys by electrochemical codeposition from LiCl-KCl-MgCl₂-ZnCl₂ melts[J]. Electrochimica Acta, 2009, 54(12): 3387-3393.
[22]	LI S L, CHE Y S, LI C Y, et al. Study on the electrochemical behavior of Mg and Al ions in LiCl-KCl melt and preparation of Mg-Al alloy[J]. Journal of Magnesium and Alloys, 2020, 10(3): 721-729.

[1]	MIN Dingwei, CHEN Gong, WEN Tanggen, SHI Zhongning, HUANG Yipeng, YANG Shaohua. Electrochemical mechanism of copper electrodeposition in NaCl-KCl-MgCl₂-Cu₂S melts[J]. Nonferrous Metals Science and Engineering, 2023, 14(2): 182-188. DOI: 10.13264/j.cnki.ysjskx.2023.02.004
[2]	LIU Zhijun, PENG Wanwan, LI Zhifeng, WANG Chunxiang, ZHANG Qian, ZHONG Shengwen. Effect of niobium doping on the electrochemical performance of nickel-based cathode materials[J]. Nonferrous Metals Science and Engineering, 2020, 11(2): 89-96. DOI: 10.13264/j.cnki.ysjskx.2020.02.013
[3]	HU Wei, ZHONG Shengwen, LI Xiaoyan, HUANG Jingbiao, PENG Kangchun, RAO Xianfa, QIU Shitao. The study of synthetize and electrochemical properties in LiNi_0.55Co_0.15Mn_0.30O₂ cathode material[J]. Nonferrous Metals Science and Engineering, 2019, 10(3): 54-57. DOI: 10.13264/j.cnki.ysjskx.2019.03.009
[4]	TIAN Yabin, DONG Quan, YE Changmei, HUANG Jingming, WANG Zhaowen, YANG Fengli, YANG Shaohua. Electrochemical reduction mechanism of NaCl-KCl-MgCl₂ molten salt Mg²⁺ on tungsten electrode[J]. Nonferrous Metals Science and Engineering, 2019, 10(2): 13-18. DOI: 10.13264/j.cnki.ysjskx.2019.02.003
[5]	QIU Shitao, ZHONG Shengwen, LI Tingting, YANG Jinmeng, TIAN Feng. Study on the electrochemical performance of Cu-added LiNi_0.6Co_0.2Mn_0.2O₂[J]. Nonferrous Metals Science and Engineering, 2018, 9(5): 21-25. DOI: 10.13264/j.cnki.ysjskx.2018.05.004
[6]	LI Linshan, YANG Shaohua, ZHAO Yujuan, WANG Zhaowen. Determination of La (Ⅲ) in LiCl-KCl eutectic by CP electrochemical method[J]. Nonferrous Metals Science and Engineering, 2017, 8(6): 1-6. DOI: 10.13264/j.cnki.ysjskx.2017.06.001
[7]	Yang Fengli, Wang Haoran, Yang Shaohua, Wang Jun, Lai Xiaohui. The Study of Electrochemical Behavior of Sr²⁺ in LiF-SrF₂-SrO Molten Salt System[J]. Nonferrous Metals Science and Engineering, 2016, 7(5): 33-36, 66. DOI: 10.13264/j.cnki.ysjskx.2016.05.006
[8]	SONG Jin-yang, YE Hong-qi, DONG Hong, ZHOU Wan-zhu, DU Yu-min, HAO Meng-qiu, QIN Tao. Mg-doping and electrochemical properties of Li (Ni_1/3Co_1/3Mn_1/3) O₂ cathode material[J]. Nonferrous Metals Science and Engineering, 2013, 4(3): 30-33. DOI: 10.13264/j.cnki.ysjskx.2013.03.001
[9]	XU Bao-he, WU Tian-tian, ZHONG Sheng-wen, ZHANG Qian. Comparative study of Si-doped Li[Li0.15Mn0.575Ni0.275]1-xSixO2 prepared by ion exchange[J]. Nonferrous Metals Science and Engineering, 2012, 3(2): 24-27. DOI: 10.13264/j.cnki.ysjskx.2012.02.003
[10]	ZHANG Sheng-wen, WANG Yu′e, ZHANG Qian, QIAO Xiao-ni. Synthesis and Electrochemical Properties of LiNi_0.5Mn_0.5O₂ as Cathode Material for AA Lithium Ion Batteries[J]. Nonferrous Metals Science and Engineering, 2010, 1(02): 11-15. DOI: 10.13264/j.cnki.ysjskx.2010.06.016

Cited By

Cited by

Periodical cited type(8)

1.	张明鲲，杨敏，王宇，赵祥，井德强. 热处理对高速列车用7005铝合金焊接接头应力腐蚀敏感性的影响. 金属热处理. 2023(08): 166-171 .
2.	马思怡，张伟健，苏睿明，李广龙，曲迎东，李荣德. 7xxx系铝合金回归再时效的研究现状. 有色金属科学与工程. 2022(02): 38-50 . 本站查看
3.	李晓含，贺嘉宁，苏睿明，杨玉萍，聂赛男，谭兵. 双级时效对7075合金应力腐蚀性能影响. 有色金属科学与工程. 2022(03): 69-75 . 本站查看
4.	邱哲生，陈俊宇，李家奇，杨明，罗安民，赵艳波，严继康. 7075铝合金下摆臂模锻锻坯铸造工艺模拟仿真. 云南冶金. 2021(03): 86-90 .
5.	邱哲生，陈俊宇，李家奇，杨明，罗安民，赵艳波，严继康. 7075铝合金下摆臂模锻锻坯铸造工艺模拟仿真. 云南冶金. 2021(04): 83-87 .
6.	邱小云，王冀恒. 双重封闭对铝锂合金阳极氧化膜耐蚀性的影响. 兵器材料科学与工程. 2021(05): 120-125 .
7.	陈蔚清，徐观明，崔紫依，余家甜，张雪辉，王春明. 超声滚压处理7B85合金的显微组织和力学性能. 有色金属科学与工程. 2021(06): 80-87 . 本站查看
8.	陈昭，郑英，朱晨，王建辉，杨冠恒，林高用. 预拉伸对7075铝合金中厚板几何精度和力学性能的影响. 有色金属科学与工程. 2019(06): 40-47 . 本站查看

Other cited types(8)

Get Citation

PDF

XML

Article Metrics

Article views (177) PDF downloads (50) Cited by(16)

Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl₂ melt

Abstract

References

Related Articles

Cited by

Periodical cited type(8)

Other cited types(8)

Catalog

Article Metrics

Related

Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl2 melt

Abstract

References

Related Articles

Cited by

Periodical cited type(8)

Other cited types(8)

Catalog

Article Metrics

Related

Export File

Citation

Format

Content

Study on Li-Mg co-deposition mechanism in LiCl-KCl-MgCl₂ melt