• 专利标题:   Preparing low temperature lithium ion battery anode material by graphene residual carbon involves taking graphene residual carbon, and drying graphene residue, and preparing anode material by shaping and classifying dried graphene residue.
  • 专利号:   CN110817836-A
  • 发明人:   YANG S, HE L, CHENG S, XUE X, XU F, SUN Y, DONG W, YANG F, WANG W, MENG L
  • 专利权人:   DONGHAI BOHUI NEW MATERIAL TECHNOLOGY CO, JIANGSU DONGHAI SILICON IND TECHNOLOGY
  • 国际专利分类:   C01B032/05, H01M010/0525, H01M004/587, H01M004/62
  • 专利详细信息:   CN110817836-A 21 Feb 2020 C01B-032/05 202022 Pages: 11 Chinese
  • 申请详细信息:   CN110817836-A CN11102810 12 Nov 2019
  • 优先权号:   CN11102810

▎ 摘  要

NOVELTY - Preparing low temperature lithium ion battery anode material by graphene residual carbon involves taking graphene residual carbon, and drying the graphene residue, and preparing anode material by shaping and classifying the dried graphene residue to obtain graphene residue particles with a particle size of 10-30 micrometer. The graphene residue particles are added to an organic solvent in which a carbon precursor is dissolved, and stirred and dispersed uniformly, and then performed heat treatment to obtain a treated product. The heating temperature is 100-200 degrees C, and the time is 1-5 hours. The organic solvent is removed by evaporation, then performed heat treatment to obtain a powder of the heating product, that is, a negative electrode material for a low-temperature lithium ion battery, where the heating temperature is 600-2400 degrees C and the processing time is 0.5-240 hours. USE - Method for preparing low temperature lithium ion battery anode material by graphene residual carbon. ADVANTAGE - The method enables to prepare low temperature lithium ion battery anode material by graphene residual carbon, that utilizes the residue in the process of preparing graphene by the redox method for preparing negative electrode materials, which is beneficial to saving costs, solves the problem of environmental pollution caused by this type of waste, and has rapid diffusion of lithium ions.