Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (6): 2082-2089.doi: 10.19799/j.cnki.2095-4239.2021.0170

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Preparation and electrochemical properties of negative eletrode materials for tamarium-based lithiumion batteries

Shaopeng SU1(), Jin LI1(), Dianping ZHANG1,2, Yan LI1, Wen XI1, Yang LI1   

  1. 1.Ningxia Key Laboratory of Photovoltaic Materials
    2.School of Mechanics Engineering, Ningxia University, Yinchuan 750021, Ningxia, China
  • Received:2021-04-21 Revised:2021-06-09 Online:2021-11-05 Published:2021-11-03

Abstract:

Nanocarbon particles (CRN) were prepared from red willow, which mostly exists planted in the northwest of China, processed by the mechanical crushing method after drying, pyrolysis, and pickling treatment processing. The electrochemical properties of a lithium-ion anode based primarily on CRN were investigated. X-ray diffractometry (XRD), Raman, and scanning electron microscopy (SEM) were used to examine the phase structure, degree of graphitization, and surface topography, respectively. Constant current charge and discharge were used to test the anode's specific capacity, magnification, and cycle stability. An electrochemical work-station was used to analyze the anode's electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) (CHI660E). The results show that the CRN prepared at 600 ℃ in the pyrolyzed temperature (500 ℃, 600 ℃, 700 ℃, and 800 ℃) has better cycle stability, higher specific capacity, and the best magnification. This study shows that the CRN prepared from red willow can be used properly as the anode of lithium-ion batteries.

Key words: red willow, low temperature pyrolysis, lithium-ion battery, eletrochemical properties

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