• 专利标题:   Preparing graphite alkenyl sodium ion battery cathode material involves adding graphene oxide into absolute ethyl alcohol, and ultrasonic processing at certain temperature to obtain oxidized graphite alcohol dispersion liquid.
  • 专利号:   CN114229914-A, WO2023071337-A1
  • 发明人:   LI C, ZHANG X, LI A, XIE Y, YU H
  • 专利权人:   HUNAN BRUNP AUTOMOBILE CIRCULATION CO LT, HUNAN BRUNP RECYCLING TECHNOLOGY CO LTD, GUANGDONG BRUNP RECYCLING TECHNOLOGY CO, GUANGDONG BRUNP RECYCLING TECHNOLOGY CO, HUNAN BRUNP RECYCLING TECHNOLOGY CO LTD, HUNAN BRUNP EV RECYCLING CO LTD
  • 国际专利分类:   C01B032/198, C01G051/04, H01M004/1393, H01M004/583
  • 专利详细信息:   CN114229914-A 25 Mar 2022 C01G-051/04 202238 Chinese
  • 申请详细信息:   CN114229914-A CN11259960 28 Oct 2021
  • 优先权号:   CN11259960

▎ 摘  要

NOVELTY - Preparing graphite alkenyl sodium ion battery cathode material comprises (i) adding graphene oxide to absolute ethanol, and ultrasonically processing at a certain temperature to obtain an oxidized graphite alcohol dispersion liquid, (ii) adding cobalt nitrate and sodium nitrite to water to dissolve to obtain a solution A, (iii) adding acetic acid to the solution A and then adding hydrogen peroxide to react, (iv) separating solid and liquid to obtain solution B, and (v) adding oxidized graphite enol dispersion solution to solution B to obtain solid matter, calcining solid insulating oxygen, washing and drying. USE - The method is useful for preparing graphite alkenyl sodium ion battery cathode material. ADVANTAGE - The method provides graphite alkenyl sodium ion battery cathode material with improved specific capacity and cycle performance.