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Title:
METHOD FOR PREPARING BCN NANOTUBES INTO LITHIUM ION SUPERCAPACITOR ELECTRODE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/143364
Kind Code:
A1
Abstract:
Disclosed is a method for preparing BCN nanotubes into a lithium ion supercapacitor electrode material, the method comprising the following steps: (1) dissolving boron source, carbon source and nitrogen source precursors in a deionized water solvent to prepare a mixed solution; (2) heating and drying the mixed solution; (3) cooling same to obtain a white powder; and (4) placing the white powder into a tube furnace, introducing an inert gas, calcining same at a high temperature, and naturally cooling same in order to prepare the BCN nanotubes. The prepared BCN nanotubes are used as a material for preparing lithium ion supercapacitor positive and negative electrodes to be assembled into a lithium ion supercapacitor. A BCN nanotube material with different contents of B and N elements is successfully obtained by means of a simple one-step calcination method, wherein the BCN nanotube material has a length of 5-10 μm and a diameter of 200-500 nm. When the BCN nanotube material is applied to lithium ion supercapacitor positive and negative electrodes, a lithium ion supercapacitor assembled therefrom can achieve a voltage window as high as 4-5 V, and has the characteristics of a high specific capacity, a good cycle stability and an excellent power-energy density.

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Inventors:
HAO XIAOPENG (CN)
JIANG HEHE (CN)
SHI DONG (CN)
WU YONGZHONG (CN)
SHAO YONGLIANG (CN)
Application Number:
PCT/CN2019/122631
Publication Date:
July 16, 2020
Filing Date:
December 03, 2019
Export Citation:
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Assignee:
SHAN DONG UNIV (CN)
International Classes:
H01G11/50; H01G11/36
Foreign References:
CN109686589A2019-04-26
CN107082408A2017-08-22
CN106477561A2017-03-08
CN105271215A2016-01-27
CN101284655A2008-10-15
Other References:
TABASSUM, H. ET AL.: "Large-scale fabrication of BCN nanotube architecture entangled on a three-dimensional carbon skeleton for energy storage.", JOURNAL OF MATERIALS CHEMISTRY A., vol. 6, no. 42, 3 October 2018 (2018-10-03), XP055718846, ISSN: 2050-748
Attorney, Agent or Firm:
JINAN JINDI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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