• 专利标题:   Method for coating lithium ion battery anode material, involves preparing graphite suspension liquid and graphene oxide solution, mixing, removing solvent followed by processing solid powder under inert atmosphere and cooling.
  • 专利号:   CN104868106-A
  • 发明人:   GAO P, QU Y
  • 专利权人:   CHANGZHOU SIXTH ELEMENT MATERIAL TECHNOL
  • 国际专利分类:   H01M010/0525, H01M004/36, H01M004/587
  • 专利详细信息:   CN104868106-A 26 Aug 2015 H01M-004/36 201582 Pages: 8 Chinese
  • 申请详细信息:   CN104868106-A CN10190383 21 Apr 2015
  • 优先权号:   CN10190383

▎ 摘  要

NOVELTY - A lithium ion battery anode material coating method involves ultrasonically dispersing graphite in solvent to obtain a graphite suspension liquid and ultrasonically dissolving graphite oxide in solvent to obtain graphene oxide solution. The graphene oxide solution is added into graphite suspension liquid at mass ratio of 0.01-0.3:1, ultrasonically mixed, and the solvent is removed to obtain dried solid powder, followed by processing solid powder at 600-1000 degrees C for 1-4 hours under inert atmosphere and cooling to obtain graphite anode material of lithium ion battery coated with the graphite. USE - Method for coating lithium ion battery anode material. ADVANTAGE - The method enables coating anode material with excellent coating effect, high purity, good cycle performance in simple, low energy dissipation, environmentally friendly, and cost effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a lithium ion battery anode material obtained by the method.