Sustainable eco-friendly sub-micron NaCl crystal powder-assisted method to synthesize SiOx/C as anode materials originated from rice husk for lithium-ion batteries

In the present study, we produced SiOx/C from rice husk by the NaCl sub-micron crystal-assisted synthesis method which can mitigate environmental degradation and hazards, simplify preparation, and improve electrochemical performance. During synthesis, NaCl induces catalytic graphitization, carbon ac...

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Published in:EcoMat (Beijing, China) China), 2023-11, Vol.5 (11), p.n/a
Main Authors: Lee, Se Hun, Cho, Youngseul, Jeon, Young Pyo, Chang, Yujin, Lee, Kyu Sang, Dongpyo Hong, Ok Sung Jeon, Park, Yongyeol, Hyun Seo Yang, Yoo, Young Joon, Sang Yoon Park, Piao, Yuanzhe
Format: Article
Language:English
Subjects:
Anodes
Batteries
Carbon
Cellulose
Chemical synthesis
Climate change
Crystals
Current density
Electrochemical analysis
Electrochemistry
Electrode materials
Electrodes
Energy storage
Environmental degradation
Graphite
Graphitization
Hazard mitigation
Lignin
Lithium
Lithium-ion batteries
lithium‐ion battery
Methods
Microcrystals
Nanostructured materials
Rechargeable batteries
Recrystallization
Rice
rice husk
Salt
Silica
SiOx/C
Sodium chloride
sodium chloride activation
sodium chloride sub‐micron crystal powder‐assisted synthesis method
Sustainable development
Temperature
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Summary:In the present study, we produced SiOx/C from rice husk by the NaCl sub-micron crystal-assisted synthesis method which can mitigate environmental degradation and hazards, simplify preparation, and improve electrochemical performance. During synthesis, NaCl induces catalytic graphitization, carbon activation, and amorphous silica formation. Moreover, it is only partially consumed and can be recrystallized and reused indefinitely. Our NaCl sub-micron crystal powder-assisted method created lithium-ion batteries (LIBs) with rice husk-derived SiOx/C anodes that exhibited a high initial charge/discharge capacity of 422.05/915.93 mAh∙g−1 at 0.05 A∙g−1 current density and stable cycling performance. In addition, the SiOx/C electrode produced by the NaCl micro-crystal method had 333.96 mAh∙g−1 capacity at 0.05 A∙g−1 current density. By contrast, bare rice husk electrode exhibited a lower capacity of 333.96 mAh∙g−1at the same condition.
ISSN:2567-3173
DOI:10.1002/eom2.12401