Biomass-derived N/S dual-doped porous hard-carbon as high-capacity anodes for lithium/sodium ions batteries

Hongri Wan, Xiran Shen, Hao Jiang, Cheng Zhang, Kaile Jiang, Teng Chen, Liluo Shi, Liming Dong, Changchun He, Yan Xu, Jing Li and Yan Chen

Energy, 2021, vol. 231, issue C

Abstract: The N/S dual-doped porous hard-carbon (N/S-PC) material is obtained by simple heat treatment. The N/S-PC material has the characteristics of hierarchical pore structure, high SSA and porous channels. These features can provide more active sites and space for lithium/sodium ion storage, which is conducive to lithium/sodium ion transfer. The N/S-PC material is characterized by instrument and equipment (SEM, TEM, XPS, Raman, XRD). The N1S1 has excellent rate performance and cycle stability. For LIBs anode materials, the capacity remains at 1060 mAh g-1 after 50 cycles, additionally, it has a capacity of 546 mAh g-1 at 5 A g-1. When N1S1 used as SIBs anode, the capacity can reach 801mAh g-1 at 0.1 A g-1 and 402 mAh g-1 at 5 A g-1, it also shows the same cycle stability and electrochemical performance.

Keywords: Hierarchical pore structure; Lithium ions batteries; Sodium ions batteries; N/S dual-doped carbon (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:231:y:2021:i:c:s0360544221013505

DOI: 10.1016/j.energy.2021.121102

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