• 专利标题:   Preparation of sodium ion battery negative electrode, involves preparing aqueous solution of graphene oxide, adding sodium humate to graphene oxide, drying, and carrying out reduction reaction to obtain negative material in powder form.
  • 专利号:   CN106816576-A, CN106816576-B
  • 发明人:   HU X, HUANG Y, WU D
  • 专利权人:   UNIV HUAZHONG SCI TECHNOLOGY, UNIV HUAZHONG SCI TECHNOLOGY
  • 国际专利分类:   H01M010/054, H01M004/13, H01M004/36, H01M004/587, H01M004/60
  • 专利详细信息:   CN106816576-A 09 Jun 2017 H01M-004/13 201748 Pages: 11 Chinese
  • 申请详细信息:   CN106816576-A CN11174030 19 Dec 2016
  • 优先权号:   CN11174030

▎ 摘  要

NOVELTY - Preparation of sodium ion battery negative electrode, involves preparing an aqueous solution of graphene oxide with a concentration of 1-20 mg/mL, adding 50-95 %mass sodium humate to 5-50 %mass graphene oxide to obtain a mixture, mixing the mixture uniformly, drying at 60-200 degrees C, carrying out reduction reaction under a mixed gas atmosphere of hydrogen gas or an inert gas, and controlling reduction reaction temperature at 100-300 degrees C for 1-48 hours to obtain sodium ion battery negative material in powder form. USE - Preparation of sodium ion battery negative electrode (claimed). ADVANTAGE - The method enables preparation of sodium ion battery negative electrode material with high quality, under mild reaction conditions. The negative electrode has excellent electrochemical property, specific capacity, and power efficiency. The method is simple and easy to industrialize.