• 专利标题:   Carbon microsphere with embedded conductive network structure used for cathode material of lithium/sodium ion battery, comprises diameter, specific surface area and tap density of specified ranges and added with high conductive material.
  • 专利号:   CN112694080-A, CN112694080-B
  • 发明人:   SONG H, YUAN M, LIU H, CHEN X
  • 专利权人:   UNIV BEIJING CHEM TECHNOLOGY
  • 国际专利分类:   C01B032/05, C01B032/184, H01M010/0525, H01M010/054, H01M004/587, H01M004/62
  • 专利详细信息:   CN112694080-A 23 Apr 2021 C01B-032/05 202145 Pages: 7 Chinese
  • 申请详细信息:   CN112694080-A CN11606935 28 Dec 2020
  • 优先权号:   CN11606935

▎ 摘  要

NOVELTY - A carbon microsphere with embedded conductive network structure has diameter of 1-20 mu m, specific surface area of 50-100 m2/g, tap density of 0.7-1.2 g/ml, added high conductive material that is uniformly embedded and dispersed forming uniform embedded conductive network, and surface and interior of that are both presented with drape structures. USE - The carbon microsphere with embedded conductive network structure is used for cathode material of lithium/sodium ion battery (claimed). ADVANTAGE - The product displays high reversible capacity and cycle stability, especially high-rate charging and discharging performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing carbon microsphere with embedded conductive network structure comprising using glucose or sucrose as carbon source, mixing high conductive material, dispersing into deionized water, processing by ultrasonic and stirring, forming uniform mixed solution, taking olive oil, heating system to 100-150 degrees C at certain stirring speed, spraying mixed solution into olive oil, cooling to room temperature, separating small ball from olive oil, washing and drying, putting product into high temperature carbonization furnace, and heating to 800-1400 degrees C in nitrogen atmosphere.