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Dandelion‐like CoO/Co 3 O 4 /Carbon Composites as Anode Materials for a High‐Performance Lithium Ion Battery
Author(s) -
Huang Run,
Zhou Rihui,
Wang Li,
Zhu Yongmei
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202002986
Subject(s) - materials science , lithium (medication) , thermogravimetric analysis , x ray photoelectron spectroscopy , raman spectroscopy , chemical engineering , anode , scanning electron microscope , carbon fibers , lithium ion battery , composite material , battery (electricity) , electrode , chemistry , composite number , medicine , power (physics) , physics , optics , quantum mechanics , engineering , endocrinology
Here, dictyophora indusiata is used as raw materials, through simple hydrothermal reaction and unique triethylamine (TEA) combustion to prepare dandelion‐like CoO/Co 3 O 4 /dictyophora indusiata‐derived carbon (DIC) composites. The CoO/Co 3 O 4 /DIC are characterized by scanning electron microscopy, transmission electron microscopy, X‐ray powder diffractometer, X‐ray photoelectron spectroscopy, Raman spectroscopy, N 2 adsorption/desorption isotherm and thermogravimetric analysis, The CoO/Co 3 O 4 /DIC shows three‐dimensional network and porous structure, which facilitates the electron transport, enlarges the contact area with the electrolyte, and effectively alleviates the damage from volume expansion of CoO/Co 3 O 4 during discharge/charge process. During TEA combustion process, the DIC is crosslinked successfully to form a stable N‐doped networks. When used as a negative electrode material for lithium ion batteries, it can still provide a high capacity of 545 mA h g −1 at a current density of 1000 mA g −1 after 250 cycles. The readily available and renewable biomass material is of great significance for achieving efficient electrochemical energy storage.