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
Se Hun Lee,
Youngseul Cho,
Young Pyo Jeon,
Yujin Chang,
Kyu Sang Lee,
Dongpyo Hong,
Ok Sung Jeon,
Yongyeol Park,
Hyun Seo Yang,
Young Joon Yoo,
Sang Yoon Park,
Yuanzhe Piao
Affiliations
Se Hun Lee
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Youngseul Cho
Program in Nano Science and Technology, Graduate School of Convergence Science and Technology Seoul National University Suwon‐Si Republic of Korea
Young Pyo Jeon
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Yujin Chang
Department of Applied Bioengineering, Graduate School of Convergence Science and Technology Seoul National University Suwon‐Si Republic of Korea
Kyu Sang Lee
Department of Applied Bioengineering, Graduate School of Convergence Science and Technology Seoul National University Suwon‐Si Republic of Korea
Dongpyo Hong
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Ok Sung Jeon
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Yongyeol Park
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Hyun Seo Yang
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Young Joon Yoo
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Sang Yoon Park
Center for Applied Electromagnetic Research for Advanced Institute of Convergence Technology Seoul National University Gyeonggi‐do Republic of Korea
Yuanzhe Piao
Department of Applied Bioengineering, Graduate School of Convergence Science and Technology Seoul National University Suwon‐Si Republic of Korea
Abstract 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.
