• 专利标题:   Preparation of composite array electrode material for lithium-ion battery, involves growing titania on graphene array, placing electrode material in lithium hydroxide, reacting mixture and growing carbon nanotubes on electrode.
  • 专利号:   CN106784692-A, CN106784692-B
  • 发明人:   XIA X, YAO Z, TU J, WANG X
  • 专利权人:   UNIV ZHEJIANG, UNIV ZHEJIANG
  • 国际专利分类:   H01M010/0525, H01M004/04, H01M004/1391, H01M004/36, H01M004/485, H01M004/62
  • 专利详细信息:   CN106784692-A 31 May 2017 H01M-004/36 201752 Pages: 12 Chinese
  • 申请详细信息:   CN106784692-A CN11205948 23 Dec 2016
  • 优先权号:   CN11205948

▎ 摘  要

NOVELTY - Titania is grown on graphene array grown on carbon fabric, to obtain composite electrode material. The composite electrode material is placed in solution (a) of lithium hydroxide, hydrothermally reacted, dried and calcined, to obtain graphene array-supported lithium titanate composite array electrode. Acetylene as carbon source is subjected to chemical vapor deposition in atmosphere of hydrogen and argon. The carbon nanotubes are grown on composite array electrode, to obtain graphene array-supported lithium titanate/carbon nanotube composite array electrode material. USE - Preparation of graphene array-supported lithium titanate/carbon nanotube composite array electrode material used as electrode material for lithium-ion battery (all claimed). ADVANTAGE - The method enables preparation of graphene array-supported lithium titanate/carbon nanotube composite array electrode material with high magnification characteristics and excellent cycle stability. DETAILED DESCRIPTION - Graphene arrays are vertically grown on carbon fabric by microwave plasma enhanced chemical vapor deposition. Titania is grown on graphene array by atomic layer deposition, to obtain vertically-grown graphene-supported titanium dioxide composite electrode material. Lithium hydroxide is dissolved in water, to form solution (a). The vertically-grown graphene-supported titanium dioxide composite electrode material is placed in solution (a), hydrothermally reacted, washed, dried and calcined, to obtain graphene array-supported lithium titanate composite array electrode. Acetylene as carbon source is subjected to chemical vapor deposition in atmosphere of hydrogen and argon. The carbon nanotubes are grown on graphene array-supported lithium titanate composite array electrode, to obtain graphene array-supported lithium titanate/carbon nanotube composite array electrode material.