Preparation method of graphene flower and application of graphene flower in lithium-sulfur battery

Preparation method of graphene flower and application of graphene flower in lithium-sulfur battery

  • CN 106,602,063 B
  • Filed: 12/30/2016
  • Issued: 08/11/2020
  • Est. Priority Date: 12/30/2016
  • Status: Active Grant
First Claim
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1. The application of the graphene flower in the lithium-sulfur battery is characterized in that the preparation method of the graphene flower comprises the following steps:

  • (1) dissolving a graphene oxide raw material in a solvent and stirring to obtain a graphene oxide solution;

    (2) carrying out spray drying on the graphene oxide solution to obtain graphene oxide flower powder;

    wherein the spray drying temperature is 60-200 deg.CoC, the diameter of the spray nozzle is 0.1-100 microns;

    (3) reducing the graphene oxide flower by using high-temperature heat treatment to obtain a graphene flower;

    high temperature heat treatment of 3000oC, under the atmosphere of nitrogen or argon, the time is 10-1000 minutes.

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