Mechanisms of Si Nanoparticle Formation by Molten Salt Magnesiothermic Reduction of Silica for Lithium‐ion Battery Anodes

2021 ◽  
Author(s):  
Ali Ansari Hamedani ◽  
Cleva W Ow-Yang ◽  
Serap Hayat Soytas
Keyword(s):  
Molten Salt ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Magnesiothermic Reduction ◽  
Nanoparticle Formation ◽  
Si Nanoparticle

Green molten salt modification of cobalt oxide for lithium ion battery anode application

2021 ◽  
Vol 267 ◽  
pp. 124585
Author(s):  
Ali Reza Kamali ◽  
Dongwei Qiao ◽  
Zhongning Shi ◽  
Dexi Wang
Keyword(s):  
Molten Salt ◽  
Lithium Ion Battery ◽  
Cobalt Oxide ◽  
Lithium Ion ◽  
Battery Anode

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.

Molten salt electrolytic synthesis of silicon-copper composite nanowires with enhanced performances as lithium ion battery anode

2018 ◽  
Vol 751 ◽  
pp. 307-315 ◽  
Author(s):  
Zhongren Zhou ◽  
Yingjie Zhang ◽  
Yixin Hua ◽  
Peng Dong ◽  
Yan Lin ◽  
...  
Keyword(s):  
Molten Salt ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Copper Composite ◽  
Battery Anode

Molten Salt-assisted Magnesiothermic Reduction Synthesis of Spherical Si Hollow Structure as Promising Anode Materials of Lithium Ion Batteries

2019 ◽  
Vol 48 (12) ◽  
pp. 1547-1550 ◽  
Author(s):  
Xiaohan Wan ◽  
Zehua Tang ◽  
Jiale Chen ◽  
Yanchun Xue ◽  
Junhao Zhang ◽  
...  
Keyword(s):  
Molten Salt ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Magnesiothermic Reduction
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