SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries
1
Department of Chemical and Biological Engineering, Gachon University, Seongnam 13120, Korea
2
Department of Chemical and Biochemical Engineering, Dongguk University, Jung-gu, Seoul 04620, Korea
3
Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea
*
Author to whom correspondence should be addressed.
Materials 2020, 13(14), 3165; https://doi.org/10.3390/ma13143165
Received: 8 June 2020
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Revised: 9 July 2020
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Accepted: 13 July 2020
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Published: 15 July 2020
(This article belongs to the Special Issue Next-Generation Materials for Energy Storage and Conversion)
One of the biggest challenges in the commercialization of tin dioxide (SnO2)-based lithium-ion battery (LIB) electrodes is the volume expansion of SnO2 during the charge–discharge process. Additionally, the aggregation of SnO2 also deteriorates the performance of anode materials. In this study, we prepared SnO2 nanoflowers (NFs) using nanocrystalline cellulose (CNC) to improve the surface area, prevent the particle aggregation, and alleviate the change in volume of LIB anodes. Moreover, CNC served not only as the template for the synthesis of the SnO2 NFs but also as a conductive material, after annealing the SnO2 NFs at 800 °C to improve their electrochemical performance. The obtained CNC–SnO2NF composite was used as an active LIB electrode material and exhibited good cycling performance and a high initial reversible capacity of 891 mA h g−1, at a current density of 100 mA g−1. The composite anode could retain 30% of its initial capacity after 500 charge–discharge cycles.
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Keywords:
lithium-ion batteries; nanocrystalline cellulose; tin dioxide nanoflower; carbon-based conductive materials; CNC; SnO2
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MDPI and ACS Style
Tran, Q.N.; Kim, I.T.; Park, S.; Choi, H.W.; Park, S.J. SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries. Materials 2020, 13, 3165. https://doi.org/10.3390/ma13143165
AMA Style
Tran QN, Kim IT, Park S, Choi HW, Park SJ. SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries. Materials. 2020; 13(14):3165. https://doi.org/10.3390/ma13143165
Chicago/Turabian StyleTran, Quang N., Il T. Kim, Sangkwon Park, Hyung W. Choi, and Sang J. Park. 2020. "SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries" Materials 13, no. 14: 3165. https://doi.org/10.3390/ma13143165
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