低比表面积酚醛树脂硬碳的制备及电化学性能

doi:10.11896/cldb.18100133

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Abstract This work presented a preparation approach for phenolic resin hard carbon with low specific surface area, which employed foaming method and took phenolic resin as raw material, N-Pentane as foaming agent. SEM, XRD, FTIR and N₂ adsorption/desorption were adopted to characterize the surface morphology and structural features of the obtained hard carbon samples with various addition amount of foaming agents. Furthermore, the button half-cell was assembled by taking lithium metal as the electrode and the electrochemical performance of the half-cell was measured. According to results, with quality score is 20% of N-Pentane, the hard carbon sample exhibited the specific surface area of 1.62 m²·g^-1, average pore size of 6.406 nm, d002 of 0.394 nm, L_a of 1.417 nm, L_c of 2.602 nm, and carbon yield of 45.05%. Regarding to the electrochemical performance, hard carbon sample with 20% N-Pentane held the first specific capacity of 318.7 mAh·g^-1, initial coulomb efficiency of 68.9% at current density of 50 mA·g^-1 and it also presented satisfactory cyclic stability and rate capacity.

Key words： low specific surface area foaming hard carbon lithium ion battery anode material

Published: 16 September 2019

CLC number:

TM911

Fund:This work was financially supported by the National Natural Science Foundation of China (21808095).

About author:: Guo Yanggraduate student,studied at College of Material Science and Engineering,Liaoning Technical University since September 2016, mainly engaged in the research of hard carbon materials and lithium batteries.
Shaobin Yang,professor, Ph.D. supervisor, School of Materials Science and Engineering, Liaoning Technical University. He graduated from Dalian University of Technology with a bachelor’s degree in 1986 and received a doctorate in chemical technology in 2000. Has been engaged in research work on new carbon materials and new energy materials. Focus on lithium-ion batte-ries, sodium-ion batteries, supercapacitor carbon electrode materials and other electrode materials, published more than 30 articles in important journals at home and abroad, and obtained more than 20 invention patents.

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	YANG Guo
	MA Zhuang
	YANG Shaobin
	DONG Wei
	SHEN Ding

Cite this article:

YANG Guo,MA Zhuang,YANG Shaobin, et al. Synthesis of Phenolic Resin Hard Carbon with Low Specific Surface Area and Its Electrochemical Properties[J]. Materials Reports, 2019, 33(22): 3820-3824.

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http://www.mater-rep.com/EN/10.11896/cldb.18100133 OR http://www.mater-rep.com/EN/Y2019/V33/I22/3820

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