• 专利标题:   Production of positive electrode material used for lithium ion battery with positive electrode material with graphene supported nano-titanium dioxide comprises adding sodium chloride and potassium chloride into ball mill and vacuum drying.
  • 专利号:   CN106784774-A, CN106784774-B
  • 发明人:   LI R, LI Z, LIU B
  • 专利权人:   UNIV ZHEJIANG, UNIV ZHEJIANG
  • 国际专利分类:   B82Y030/00, H01M010/0525, H01M010/058, H01M004/48, H01M004/62
  • 专利详细信息:   CN106784774-A 31 May 2017 H01M-004/48 201751 Pages: 9 Chinese
  • 申请详细信息:   CN106784774-A CN11133524 10 Dec 2016
  • 优先权号:   CN11133524

▎ 摘  要

NOVELTY - Production of positive electrode material comprises adding sodium chloride and potassium chloride into ball mill, adding single-water glucose, urea, tetrabutyl titanate and sodium chloride-potassium chloride eutectic salt into ball mill, evacuating and heating, and cooling mixture to obtain nano-titanium dioxide with gravel; and washing salt-containing graphene-supported nano-titanium dioxide with distilled water and vacuum drying to obtain nano-titanium supported graphene. USE - Method for producing positive electrode material used for lithium ion battery with positive electrode material with graphene supported nano-titanium dioxide (claimed). ADVANTAGE - The method has good chemical stability, high hydroperoxosilicate potential, high capacity battery, 1.8 V lithium ion battery opencircuit voltage and can provide safe and reliable high energy power battery. DETAILED DESCRIPTION - Production of positive electrode material comprises adding sodium chloride and potassium chloride at mass ratio of 45:55 into ball mill, milling under 700 revolutions/minute (rpm) for 1 hour, heating at 700 degrees C for 2 hours and cooling at 25 degrees C to obtain sodium chloride-potassium chloride eutectic salt; adding single-water glucose, urea, tetrabutyl titanate and sodium chloride-potassium chloride eutectic salt into ball mill at mass ratio of 4:2:0.5-4:300, milling at 700 rpm for 2 hours to obtain graphite with nano-titanium oxide precursor; heating obtained precursor into 110 degrees C for 2 hours under nitrogen atm, evacuating and heating at 440 degrees C for 8 hours, heating at 700-900 degrees C for 2 hours under 10 degrees C/minutes heating rate and cooling mixture at room temperature to obtain nano-titanium dioxide with gravel; and washing salt-containing graphene-supported nano-titanium dioxide with distilled water and vacuum drying to obtain nano-titanium supported graphene.