Investigation of the electrochemical reduction of Na2Ti3O7 in CaCl2 molten salt

2019 ◽  
Vol 318 ◽  
pp. 236-243 ◽  
Author(s):  
Kejia Liu ◽  
Yaowu Wang ◽  
Yuezhong Di ◽  
Jianping Peng
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction

Electrochemical recovery of Ni metallic in molten salts from spent lithium-ion battery

2020 ◽  
Vol 18 (8) ◽  
Author(s):  
Jinglong Liang ◽  
Jing Wang ◽  
Hui Li ◽  
Chenxiao Li ◽  
Hongyan Yan ◽  
...  
Keyword(s):  
Molten Salt ◽  
Lithium Ion Battery ◽  
Electrochemical Reduction ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Metallic Nickel ◽  
Molten Salt Electrolysis ◽  
Reduction Behavior ◽  
Urgent Task ◽  
Constant Cell

AbstractMassive deployment of lithium-ion battery inevitably causes a large amount of solid waste. To be sustainably implemented, technologies capable of reducing environmental impacts and recovering resources from spent lithium-ion battery have been an urgent task. The electrochemical reduction of LiNiO2 to metallic nickel has been reported, which is a typical cathode material of lithium-ion battery. In this paper, the electrochemical reduction behavior of LiNiO2 is studied at 750 °C in the eutectic NaCl-CaCl2 molten salt, and the constant cell voltage electrolysis of LiNiO2 is carried out. The results show that Ni(III) is reduced to metallic nickel by a two-step process, Ni(III) → Ni(II) → Ni, which is quasi-reversible controlled by diffusion and electron transfer. After electrolysis for 6 h at 1.4 V, the surface of LiNiO2 cathode is reduced to metallic nickel, with NiO and a small amount of Li0.4Ni1.6O2 detected inside the partially reduced cathode. After prolonging the electrolysis time to 12 h, LiNiO2 is fully electroreduced to metallic nickel, achieving a high current efficiency of 98.60%. The present work highlights that molten salt electrolysis could be an effective protocol for reclamation of spent lithium-ion battery.

Electrochemical Reduction of Silicon Oxide and Codeposition of Al-Si Alloy from Cryolite Molten Salt

JOM ◽  
2021 ◽  
Author(s):  
Jiaxin Yang ◽  
Wenju Tao ◽  
Liyu Chen ◽  
Jingui He ◽  
Yifan Zhang ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction ◽  
Silicon Oxide

Clean preparation of V2O3 by one-step molten salt electrochemical reduction of soluble NaVO3

2021 ◽  
pp. 120346
Author(s):  
Zhonghua Zhao ◽  
Mingyong Wang ◽  
Yunfei Chen ◽  
Yongzheng Jia ◽  
Jialiang An ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction ◽  
One Step

scholarly journals Electrochemical Reduction of UO2 to U in LiCl-KCl Molten Salt Eutectic Using the Fluidized Cathode Process

2016 ◽  
Vol 75 (15) ◽  
pp. 69-78
Author(s):  
R. Abdulaziz ◽  
L. D. Brown ◽  
D. Inman ◽  
C. Sharrad ◽  
P. R. Shearing ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction ◽  
Cathode Process

Thermodynamic considerations of screening halide molten-salt electrolytes for electrochemical reduction of solid oxides/sulfides

2019 ◽  
Vol 23 (3) ◽  
pp. 903-909 ◽  
Author(s):  
Hongwei Xie ◽  
Haijia Zhao ◽  
Jiakang Qu ◽  
Qiushi Song ◽  
Zhiqiang Ning ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction ◽  
Solid Oxides ◽  
Molten Salt Electrolytes

Synthesis of micro-FeTi powders by direct electrochemical reduction of ilmenite in CaCl2-NaCl molten salt

Ionics ◽  
2016 ◽  
Vol 23 (1) ◽  
pp. 213-221 ◽  
Author(s):  
Zhongren Zhou ◽  
Yixin Hua ◽  
Cunying Xu ◽  
Jian Li ◽  
Yan Li ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction

Electrochemical reduction of UO2 to U in a LiCl–KCl-Li2O molten salt

2012 ◽  
Vol 295 (2) ◽  
pp. 851-854 ◽  
Author(s):  
Jin-Mok Hur ◽  
Sun-Seok Hong ◽  
Hansoo Lee
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction

Characteristics of an electrochemical reduction of Ta2O5 for the preparation of metallic tantalum in a LiCl–Li2O molten salt

2007 ◽  
Vol 440 (1-2) ◽  
pp. 210-215 ◽  
Author(s):  
Sang Mun Jeong ◽  
Jin-Young Jung ◽  
Chung-Seok Seo ◽  
Seong-Won Park
Keyword(s):  
Molten Salt ◽  
Electrochemical Reduction
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