Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (2): 198-204.DOI: 10.11944/j.issn.1000-0518.2020.02.190236

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Calix[4]quinone/N-Doped Amorphous Carbon Nanofibers Composites for Lithium-Ion Batteries

CUI Huamina,ZHANG Xueqianb,HU Pandenga,YAN Binga,HUANG Weiweia*(),GUO Wenfenga*()   

  1. aSchool of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China
    bState Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei 066004,China
  • Received:2019-09-05 Accepted:2019-11-19 Published:2020-02-01 Online:2020-02-06
  • Contact: HUANG Weiwei,GUO Wenfeng
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21875206,No.21403187), and the Natural Science Foundation of Hebei Province(No.B2019203487)

Abstract:

Although calix[4]quinone (C4Q) has a theoretical specific capacity up to 447 mA·h/g, its high solubility in liquid electrolytes and low conductivity make it impractical in lithium-ion batteries (LIBs). In order to solve these problems, N-doped amorphous carbon nanofibers (NACF) were obtained by high-temperature carbonization with chitin as raw material, and were used to adsorb C4Q to prepare C4Q/NACF (mass ratio is 1:1) composite material. The as-assembled LIBs delivered an initial discharge capacity of 426 mA·h/g, and maintained 213 mA·h/g after 100 cycles at 0.1 C. Even at a high rate of 1 C, the capacity could still reach 188 mA·h/g. These experimental results show that the performance of LIBs is effectively improved by using NACF biomass carbon to immobilize C4Q.

Key words: chitin, N-doped amorphous carbon nanofibers, calix[4]quinone, immobilization, lithium-ion batteries