Nano Hard Carbon Anodes for Sodium-Ion Batteries
AbstractA hindrance to the practical use of sodium-ion batteries is the lack of adequate anode materials. By utilizing the co-intercalation reaction, graphite, which is the most common anode material of lithium-ion batteries, was used for storing sodium ion. However, its performance, such as reversible capacity and coulombic efficiency, remains unsatisfactory for practical needs. Therefore, to overcome these drawbacks, a new carbon material was synthesized so that co-intercalation could occur efficiently. This carbon material has the same morphology as carbon black; that is, it has a wide pathway due to a turbostratic structure, and a short pathway due to small primary particles that allows the co-intercalation reaction to occur efficiently. Additionally, due to the numerous voids present in the inner amorphous structure, the sodium storage capacity was greatly increased. Furthermore, owing to the coarse co-intercalation reaction due to the surface pore structure, the formation of solid-electrolyte interphase was greatly suppressed and the first cycle coulombic efficiency reached 80%. This study shows that the carbon material alone can be used to design good electrode materials for sodium-ion batteries without the use of next-generation materials. View Full-Text
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Kim, D.-Y.; Kim, D.-H.; Kim, S.-H.; Lee, E.-K.; Park, S.-K.; Lee, J.-W.; Yun, Y.-S.; Choi, S.-Y.; Kang, J. Nano Hard Carbon Anodes for Sodium-Ion Batteries. Nanomaterials 2019, 9, 793.
Kim D-Y, Kim D-H, Kim S-H, Lee E-K, Park S-K, Lee J-W, Yun Y-S, Choi S-Y, Kang J. Nano Hard Carbon Anodes for Sodium-Ion Batteries. Nanomaterials. 2019; 9(5):793.Chicago/Turabian Style
Kim, Dae-Yeong; Kim, Dong-Hyun; Kim, Soo-Hyun; Lee, Eun-Kyung; Park, Sang-Kyun; Lee, Ji-Woong; Yun, Yong-Sup; Choi, Si-Young; Kang, Jun. 2019. "Nano Hard Carbon Anodes for Sodium-Ion Batteries." Nanomaterials 9, no. 5: 793.
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