Engineering Electrolytic Silicon–Carbon Composites by Tuning the In Situ Magnesium Oxide Space Holder: Molten-Salt Electrolysis of Carbon-Encapsulated Magnesium Silicates for Preparing Lithium-Ion Battery Anodes

2020 ◽  
Vol 8 (26) ◽  
pp. 9866-9874
Author(s):  
Muya Cai ◽  
Xianbo Zhou ◽  
Zhuqing Zhao ◽  
Qiang Ma ◽  
Hongwei Xie ◽  
...  
Keyword(s):  
Molten Salt ◽  
Lithium Ion Battery ◽  
Magnesium Oxide ◽  
Lithium Ion ◽  
Carbon Composites ◽  
Molten Salt Electrolysis ◽  
Space Holder ◽  
Silicon Carbon ◽  
Magnesium Silicates

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.

Electrostatically Assembled Silicon–Carbon Composites Employing Amine-Functionalized Carbon Intra-interconnections for Lithium-Ion Battery Anodes

2019 ◽  
Vol 2 (3) ◽  
pp. 1868-1875 ◽  
Author(s):  
Changju Chae ◽  
Woonghee Choi ◽  
Seulgi Ji ◽  
Sun Sook Lee ◽  
Jin-Kyu Kim ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Carbon Composites ◽  
Amine Functionalized ◽  
Silicon Carbon

Recent advances of silicon, carbon composites and tin oxide as new anode materials for lithium-ion battery: A comprehensive review

2021 ◽  
Vol 33 ◽  
pp. 102096
Author(s):  
Mohd Asyadi Azam ◽  
Nur Ezyanie Safie ◽  
Aina Syuhada Ahmad ◽  
Nor Aqilah Yuza ◽  
Nor Syazana Adilah Zulkifli
Keyword(s):  
Lithium Ion Battery ◽  
Tin Oxide ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Composites ◽  
Comprehensive Review ◽  
Recent Advances ◽  
Silicon Carbon

In-situ growth of silicon nanowires on graphite by molten salt electrolysis for high performance lithium-ion batteries

2020 ◽  
Vol 273 ◽  
pp. 127946 ◽  
Author(s):  
Zhanglong Yu ◽  
Sheng Fang ◽  
Ning Wang ◽  
Bimeng Shi ◽  
Yicheng Hu ◽  
...  
Keyword(s):  
Molten Salt ◽  
Lithium Ion Batteries ◽  
Silicon Nanowires ◽  
High Performance ◽  
Lithium Ion ◽  
In Situ Growth ◽  
Molten Salt Electrolysis

The pitch-based silicon-carbon composites fabricated by electrospraying technique as the anode material of lithium ion battery

2020 ◽  
Vol 844 ◽  
pp. 156025 ◽  
Author(s):  
Chih-Yu Chen ◽  
Ai-Hua Liang ◽  
Cheng-Liang Huang ◽  
Ting-Hao Hsu ◽  
Yuan-Yao Li
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
Lithium Ion ◽  
Carbon Composites ◽  
Silicon Carbon
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